# Compute Engine API . urlMaps

## Instance Methods

Retrieves the list of all UrlMap resources, regional and global, available to the specified project.

Retrieves the next page of results.

Close httplib2 connections.

Deletes the specified UrlMap resource.

Returns the specified UrlMap resource. Gets a list of available URL maps by making a list() request.

Creates a UrlMap resource in the specified project using the data included in the request.

Initiates a cache invalidation operation, invalidating the specified path, scoped to the specified UrlMap. For more information, see [Invalidating cached content](/cdn/docs/invalidating-cached-content).

Retrieves the list of UrlMap resources available to the specified project.

Retrieves the next page of results.

Patches the specified UrlMap resource with the data included in the request. This method supports PATCH semantics and uses the JSON merge patch format and processing rules.

Returns permissions that a caller has on the specified resource.

Updates the specified UrlMap resource with the data included in the request.

Runs static validation for the UrlMap. In particular, the tests of the provided UrlMap will be run. Calling this method does NOT create the UrlMap.

### Method Details

`aggregatedList(project, filter=None, includeAllScopes=None, maxResults=None, orderBy=None, pageToken=None, returnPartialSuccess=None, x__xgafv=None)`

    Retrieves the list of all UrlMap resources, regional and global, available to the specified project.

    Args:
      project: string, Name of the project scoping this request. (required)
      filter: string, A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
      includeAllScopes: boolean, Indicates whether every visible scope for each scope type (zone, region, global) should be included in the response. For new resource types added after this field, the flag has no effect as new resource types will always include every visible scope for each scope type in response. For resource types which predate this field, if this flag is omitted or false, only scopes of the scope types where the resource type is expected to be found will be included.
      maxResults: integer, The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
      orderBy: string, Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
      pageToken: string, Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
      returnPartialSuccess: boolean, Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "id": "A String", # [Output Only] Unique identifier for the resource; defined by the server.
      "items": { # A list of UrlMapsScopedList resources.
        "a_key": { # Name of the scope containing this set of UrlMaps.
          "urlMaps": [ # A list of UrlMaps contained in this scope.
            { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
              "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
              "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
              "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
              "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "hostRules": [ # The list of host rules to use against the URL.
                { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
                  "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
                  "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "A String",
                  ],
                  "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
                },
              ],
              "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
              "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
              "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
              "pathMatchers": [ # The list of named PathMatchers to use against the URL.
                { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
                  "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                    "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                        "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                  },
                  "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
                  "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                  },
                  "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
                  "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
                  "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
                    { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
                      "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                              "A String",
                            ],
                            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                          },
                        ],
                        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                      },
                      "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                        "A String",
                      ],
                      "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                            "A String",
                          ],
                          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                            "A String",
                          ],
                          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                            "A String",
                          ],
                          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                            "A String",
                          ],
                          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                            "A String",
                          ],
                          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                        },
                        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                          },
                          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                            },
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                          },
                        },
                        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                        },
                        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                            "A String",
                          ],
                        },
                        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                        },
                        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                                },
                              ],
                              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                                "A String",
                              ],
                              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                                },
                              ],
                              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                                "A String",
                              ],
                            },
                            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                          },
                        ],
                      },
                      "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                      "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                      },
                    },
                  ],
                  "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
                    { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
                      "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                              "A String",
                            ],
                            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                          },
                        ],
                        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                      },
                      "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
                      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                          "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                          "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                          "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                        },
                      ],
                      "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                          "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                          "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                          "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                        },
                      ],
                      "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                        { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                          "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                          "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                            { # matchRule criteria for request header matches.
                              "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                              "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                              "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                              "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                              "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                              "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                                "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                                "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                              },
                              "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                              "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                            },
                          ],
                          "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                          "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                            { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                              "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                                { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                                  "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                                  "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                                },
                              ],
                              "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                            },
                          ],
                          "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                          "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                            { # HttpRouteRuleMatch criteria for a request's query parameter.
                              "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                              "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                              "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                              "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                            },
                          ],
                          "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                        },
                      ],
                      "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
                      "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                            "A String",
                          ],
                          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                            "A String",
                          ],
                          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                            "A String",
                          ],
                          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                            "A String",
                          ],
                          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                            "A String",
                          ],
                          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                        },
                        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                          },
                          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                            },
                            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                          },
                        },
                        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                        },
                        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                          },
                          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                            "A String",
                          ],
                        },
                        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                        },
                        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                                },
                              ],
                              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                                "A String",
                              ],
                              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                                { # Specification determining how headers are added to requests or responses.
                                  "headerName": "A String", # The name of the header.
                                  "headerValue": "A String", # The value of the header to add.
                                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                                },
                              ],
                              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                                "A String",
                              ],
                            },
                            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                          },
                        ],
                      },
                      "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                      "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                      },
                    },
                  ],
                },
              ],
              "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
              "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
              "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # Message for the expected URL mappings.
                  "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
                  "description": "A String", # Description of this test case.
                  "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
                  "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
                  "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
                  "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
                    { # HTTP headers used in UrlMapTests.
                      "name": "A String", # Header name.
                      "value": "A String", # Header value.
                    },
                  ],
                  "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
                  "path": "A String", # Path portion of the URL.
                  "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
                },
              ],
            },
          ],
          "warning": { # Informational warning which replaces the list of backend services when the list is empty.
            "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
            "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
              {
                "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
                "value": "A String", # [Output Only] A warning data value corresponding to the key.
              },
            ],
            "message": "A String", # [Output Only] A human-readable description of the warning code.
          },
        },
      },
      "kind": "compute#urlMapsAggregatedList", # Type of resource.
      "nextPageToken": "A String", # [Output Only] This token allows you to get the next page of results for list requests. If the number of results is larger than maxResults, use the nextPageToken as a value for the query parameter pageToken in the next list request. Subsequent list requests will have their own nextPageToken to continue paging through the results.
      "selfLink": "A String", # [Output Only] Server-defined URL for this resource.
      "unreachables": [ # [Output Only] Unreachable resources.
        "A String",
      ],
      "warning": { # [Output Only] Informational warning message.
        "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
        "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
          {
            "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
            "value": "A String", # [Output Only] A warning data value corresponding to the key.
          },
        ],
        "message": "A String", # [Output Only] A human-readable description of the warning code.
      },
    }

`aggregatedList_next()`

    Retrieves the next page of results.

            Args:
              previous_request: The request for the previous page. (required)
              previous_response: The response from the request for the previous page. (required)

            Returns:
              A request object that you can call 'execute()' on to request the next
              page. Returns None if there are no more items in the collection.

`close()`

    Close httplib2 connections.

`delete(project, urlMap, requestId=None, x__xgafv=None)`

    Deletes the specified UrlMap resource.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to delete. (required)
      requestId: string, An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource. Google Compute Engine has three Operation resources: * [Global](/compute/docs/reference/rest/alpha/globalOperations) * [Regional](/compute/docs/reference/rest/alpha/regionOperations) * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations) You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses. Operations can be global, regional or zonal. - For global operations, use the `globalOperations` resource. - For regional operations, use the `regionOperations` resource. - For zonal operations, use the `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
      "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error details. There is a set of defined message types to use for providing details.The syntax depends on the error code. For example, QuotaExceededInfo will have details when the error code is QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details. Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled: { "reason": "API_DISABLED" "domain": "googleapis.com" "metadata": { "resource": "projects/123", "service": "pubsub.googleapis.com" } } This response indicates that the pubsub.googleapis.com API is not enabled. Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock: { "reason": "STOCKOUT" "domain": "spanner.googleapis.com", "metadata": { "availableRegions": "us-central1,us-east2" } }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error. Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}, should be returned as, {"instanceLimitPerRequest": "100"}, if the client exceeds the number of instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match /[A-Z0-9_]+/.
                },
                "help": { # Provides links to documentation or for performing an out of band action. For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at http://www.rfc-editor.org/rfc/bcp/bcp47.txt. Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error. This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
    }

`get(project, urlMap, x__xgafv=None)`

    Returns the specified UrlMap resource. Gets a list of available URL maps by making a list() request.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to return. (required)
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
            "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
              { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                          "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                    },
                  ],
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
          "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
        },
      ],
    }

`insert(project, body=None, requestId=None, x__xgafv=None)`

    Creates a UrlMap resource in the specified project using the data included in the request.

    Args:
      project: string, Project ID for this request. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
            "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
              { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                          "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                    },
                  ],
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
          "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource. Google Compute Engine has three Operation resources: * [Global](/compute/docs/reference/rest/alpha/globalOperations) * [Regional](/compute/docs/reference/rest/alpha/regionOperations) * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations) You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses. Operations can be global, regional or zonal. - For global operations, use the `globalOperations` resource. - For regional operations, use the `regionOperations` resource. - For zonal operations, use the `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
      "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error details. There is a set of defined message types to use for providing details.The syntax depends on the error code. For example, QuotaExceededInfo will have details when the error code is QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details. Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled: { "reason": "API_DISABLED" "domain": "googleapis.com" "metadata": { "resource": "projects/123", "service": "pubsub.googleapis.com" } } This response indicates that the pubsub.googleapis.com API is not enabled. Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock: { "reason": "STOCKOUT" "domain": "spanner.googleapis.com", "metadata": { "availableRegions": "us-central1,us-east2" } }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error. Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}, should be returned as, {"instanceLimitPerRequest": "100"}, if the client exceeds the number of instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match /[A-Z0-9_]+/.
                },
                "help": { # Provides links to documentation or for performing an out of band action. For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at http://www.rfc-editor.org/rfc/bcp/bcp47.txt. Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error. This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
    }

`invalidateCache(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Initiates a cache invalidation operation, invalidating the specified path, scoped to the specified UrlMap. For more information, see [Invalidating cached content](/cdn/docs/invalidating-cached-content).

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap scoping this request. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "host": "A String", # If set, this invalidation rule will only apply to requests with a Host header matching host.
      "path": "A String",
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource. Google Compute Engine has three Operation resources: * [Global](/compute/docs/reference/rest/alpha/globalOperations) * [Regional](/compute/docs/reference/rest/alpha/regionOperations) * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations) You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses. Operations can be global, regional or zonal. - For global operations, use the `globalOperations` resource. - For regional operations, use the `regionOperations` resource. - For zonal operations, use the `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
      "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error details. There is a set of defined message types to use for providing details.The syntax depends on the error code. For example, QuotaExceededInfo will have details when the error code is QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details. Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled: { "reason": "API_DISABLED" "domain": "googleapis.com" "metadata": { "resource": "projects/123", "service": "pubsub.googleapis.com" } } This response indicates that the pubsub.googleapis.com API is not enabled. Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock: { "reason": "STOCKOUT" "domain": "spanner.googleapis.com", "metadata": { "availableRegions": "us-central1,us-east2" } }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error. Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}, should be returned as, {"instanceLimitPerRequest": "100"}, if the client exceeds the number of instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match /[A-Z0-9_]+/.
                },
                "help": { # Provides links to documentation or for performing an out of band action. For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at http://www.rfc-editor.org/rfc/bcp/bcp47.txt. Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error. This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
    }

`list(project, filter=None, maxResults=None, orderBy=None, pageToken=None, returnPartialSuccess=None, x__xgafv=None)`

    Retrieves the list of UrlMap resources available to the specified project.

    Args:
      project: string, Project ID for this request. (required)
      filter: string, A filter expression that filters resources listed in the response. Most Compute resources support two types of filter expressions: expressions that support regular expressions and expressions that follow API improvement proposal AIP-160. If you want to use AIP-160, your expression must specify the field name, an operator, and the value that you want to use for filtering. The value must be a string, a number, or a boolean. The operator must be either `=`, `!=`, `>`, `<`, `<=`, `>=` or `:`. For example, if you are filtering Compute Engine instances, you can exclude instances named `example-instance` by specifying `name != example-instance`. The `:` operator can be used with string fields to match substrings. For non-string fields it is equivalent to the `=` operator. The `:*` comparison can be used to test whether a key has been defined. For example, to find all objects with `owner` label use: ``` labels.owner:* ``` You can also filter nested fields. For example, you could specify `scheduling.automaticRestart = false` to include instances only if they are not scheduled for automatic restarts. You can use filtering on nested fields to filter based on resource labels. To filter on multiple expressions, provide each separate expression within parentheses. For example: ``` (scheduling.automaticRestart = true) (cpuPlatform = "Intel Skylake") ``` By default, each expression is an `AND` expression. However, you can include `AND` and `OR` expressions explicitly. For example: ``` (cpuPlatform = "Intel Skylake") OR (cpuPlatform = "Intel Broadwell") AND (scheduling.automaticRestart = true) ``` If you want to use a regular expression, use the `eq` (equal) or `ne` (not equal) operator against a single un-parenthesized expression with or without quotes or against multiple parenthesized expressions. Examples: `fieldname eq unquoted literal` `fieldname eq 'single quoted literal'` `fieldname eq "double quoted literal"` `(fieldname1 eq literal) (fieldname2 ne "literal")` The literal value is interpreted as a regular expression using Google RE2 library syntax. The literal value must match the entire field. For example, to filter for instances that do not end with name "instance", you would use `name ne .*instance`.
      maxResults: integer, The maximum number of results per page that should be returned. If the number of available results is larger than `maxResults`, Compute Engine returns a `nextPageToken` that can be used to get the next page of results in subsequent list requests. Acceptable values are `0` to `500`, inclusive. (Default: `500`)
      orderBy: string, Sorts list results by a certain order. By default, results are returned in alphanumerical order based on the resource name. You can also sort results in descending order based on the creation timestamp using `orderBy="creationTimestamp desc"`. This sorts results based on the `creationTimestamp` field in reverse chronological order (newest result first). Use this to sort resources like operations so that the newest operation is returned first. Currently, only sorting by `name` or `creationTimestamp desc` is supported.
      pageToken: string, Specifies a page token to use. Set `pageToken` to the `nextPageToken` returned by a previous list request to get the next page of results.
      returnPartialSuccess: boolean, Opt-in for partial success behavior which provides partial results in case of failure. The default value is false.
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Contains a list of UrlMap resources.
      "id": "A String", # [Output Only] Unique identifier for the resource; defined by the server.
      "items": [ # A list of UrlMap resources.
        { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
          "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
            "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
              { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
          "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
              "A String",
            ],
          },
          "hostRules": [ # The list of host rules to use against the URL.
            { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
              "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
              "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "A String",
              ],
              "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
            },
          ],
          "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
          "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
          "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
          "pathMatchers": [ # The list of named PathMatchers to use against the URL.
            { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
              "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
              "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
              "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
              "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
                { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
                  "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                    "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                        "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                  },
                  "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                    "A String",
                  ],
                  "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                  "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                  },
                },
              ],
              "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
                { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
                  "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                    "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                      { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                        "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                          "A String",
                        ],
                        "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                        "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                      },
                    ],
                    "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                  },
                  "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
                  "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                      "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                      "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                      "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                    },
                  ],
                  "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                      "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                      "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                      "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                    },
                  ],
                  "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                    { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                      "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                      "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                        { # matchRule criteria for request header matches.
                          "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                          "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                          "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                          "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                          "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                          "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                            "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                            "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                          },
                          "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                          "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                        },
                      ],
                      "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                      "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                          "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                            { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                              "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                              "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                            },
                          ],
                          "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                        },
                      ],
                      "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                      "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                        { # HttpRouteRuleMatch criteria for a request's query parameter.
                          "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                          "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                          "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                          "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                        },
                      ],
                      "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                    },
                  ],
                  "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
                  "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                    "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                      "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                      "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                        "A String",
                      ],
                      "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                        "A String",
                      ],
                      "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                        "A String",
                      ],
                      "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                      "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                        "A String",
                      ],
                      "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                    },
                    "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                      "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                        "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                      "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                        "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                        },
                        "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                      },
                    },
                    "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                    },
                    "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                      "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                      "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                        "A String",
                      ],
                    },
                    "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                      "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                    },
                    "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                      { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                        "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                        "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                            "A String",
                          ],
                          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                            { # Specification determining how headers are added to requests or responses.
                              "headerName": "A String", # The name of the header.
                              "headerValue": "A String", # The value of the header to add.
                              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                            },
                          ],
                          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                            "A String",
                          ],
                        },
                        "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                      },
                    ],
                  },
                  "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                  "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                    "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                    "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                    "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                    "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                    "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                  },
                },
              ],
            },
          ],
          "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
          "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
          "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            { # Message for the expected URL mappings.
              "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
              "description": "A String", # Description of this test case.
              "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
              "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
              "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
              "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
                { # HTTP headers used in UrlMapTests.
                  "name": "A String", # Header name.
                  "value": "A String", # Header value.
                },
              ],
              "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
              "path": "A String", # Path portion of the URL.
              "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
            },
          ],
        },
      ],
      "kind": "compute#urlMapList", # Type of resource.
      "nextPageToken": "A String", # [Output Only] This token allows you to get the next page of results for list requests. If the number of results is larger than maxResults, use the nextPageToken as a value for the query parameter pageToken in the next list request. Subsequent list requests will have their own nextPageToken to continue paging through the results.
      "selfLink": "A String", # [Output Only] Server-defined URL for this resource.
      "warning": { # [Output Only] Informational warning message.
        "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
        "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
          {
            "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
            "value": "A String", # [Output Only] A warning data value corresponding to the key.
          },
        ],
        "message": "A String", # [Output Only] A human-readable description of the warning code.
      },
    }

`list_next()`

    Retrieves the next page of results.

            Args:
              previous_request: The request for the previous page. (required)
              previous_response: The response from the request for the previous page. (required)

            Returns:
              A request object that you can call 'execute()' on to request the next
              page. Returns None if there are no more items in the collection.

`patch(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Patches the specified UrlMap resource with the data included in the request. This method supports PATCH semantics and uses the JSON merge patch format and processing rules.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to patch. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
            "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
              { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                          "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                    },
                  ],
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
          "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource. Google Compute Engine has three Operation resources: * [Global](/compute/docs/reference/rest/alpha/globalOperations) * [Regional](/compute/docs/reference/rest/alpha/regionOperations) * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations) You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses. Operations can be global, regional or zonal. - For global operations, use the `globalOperations` resource. - For regional operations, use the `regionOperations` resource. - For zonal operations, use the `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
      "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error details. There is a set of defined message types to use for providing details.The syntax depends on the error code. For example, QuotaExceededInfo will have details when the error code is QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details. Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled: { "reason": "API_DISABLED" "domain": "googleapis.com" "metadata": { "resource": "projects/123", "service": "pubsub.googleapis.com" } } This response indicates that the pubsub.googleapis.com API is not enabled. Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock: { "reason": "STOCKOUT" "domain": "spanner.googleapis.com", "metadata": { "availableRegions": "us-central1,us-east2" } }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error. Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}, should be returned as, {"instanceLimitPerRequest": "100"}, if the client exceeds the number of instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match /[A-Z0-9_]+/.
                },
                "help": { # Provides links to documentation or for performing an out of band action. For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at http://www.rfc-editor.org/rfc/bcp/bcp47.txt. Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error. This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
    }

`testIamPermissions(project, resource, body=None, x__xgafv=None)`

    Returns permissions that a caller has on the specified resource.

    Args:
      project: string, Project ID for this request. (required)
      resource: string, Name or id of the resource for this request. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "permissions": [ # The set of permissions to check for the 'resource'. Permissions with wildcards (such as '*' or 'storage.*') are not allowed.
        "A String",
      ],
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "permissions": [ # A subset of `TestPermissionsRequest.permissions` that the caller is allowed.
        "A String",
      ],
    }

`update(project, urlMap, body=None, requestId=None, x__xgafv=None)`

    Updates the specified UrlMap resource with the data included in the request.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to update. (required)
      body: object, The request body.
        The object takes the form of:

    { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts.
      "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
      "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
        "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
          { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
            "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
              "A String",
            ],
            "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
            "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
          },
        ],
        "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
      },
      "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
        "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
          "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
          "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
            "A String",
          ],
          "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
            "A String",
          ],
          "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
            "A String",
          ],
          "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
          "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
            "A String",
          ],
          "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
        },
        "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
          "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
            "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
          "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
            "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
          },
        },
        "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
        },
        "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
          "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
          "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
            "A String",
          ],
        },
        "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
          "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
        },
        "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
          "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
        },
        "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
          { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
            "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                "A String",
              ],
            },
            "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
          },
        ],
      },
      "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
      "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
        "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
        "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
        "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
        "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
        "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
      },
      "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
      "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
          "A String",
        ],
        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
          { # Specification determining how headers are added to requests or responses.
            "headerName": "A String", # The name of the header.
            "headerValue": "A String", # The value of the header to add.
            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
          },
        ],
        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
          "A String",
        ],
      },
      "hostRules": [ # The list of host rules to use against the URL.
        { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "A String",
          ],
          "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
        },
      ],
      "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
      "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
      "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
      "pathMatchers": [ # The list of named PathMatchers to use against the URL.
        { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
          "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
            "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
              { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                  "A String",
                ],
                "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
              },
            ],
            "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
          },
          "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
            "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
              "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
              "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                "A String",
              ],
              "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                "A String",
              ],
              "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                "A String",
              ],
              "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
              "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                "A String",
              ],
              "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
            },
            "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
              "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
              "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
              },
            },
            "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
            },
            "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
              "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
              "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                "A String",
              ],
            },
            "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
              "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
            },
            "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
              { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
              },
            ],
          },
          "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
          "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
            "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
            "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
            "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
            "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
            "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
          },
          "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
          "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
              "A String",
            ],
            "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
              { # Specification determining how headers are added to requests or responses.
                "headerName": "A String", # The name of the header.
                "headerValue": "A String", # The value of the header to add.
                "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
              },
            ],
            "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
              "A String",
            ],
          },
          "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
          "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
            { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                "A String",
              ],
              "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
          "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
            { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
              "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                  { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                    "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                      "A String",
                    ],
                    "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                    "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                  },
                ],
                "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
              },
              "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                  "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                  "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                  "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                },
              ],
              "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                  "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                    { # matchRule criteria for request header matches.
                      "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                      "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                      "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                        "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                        "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                      },
                      "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                      "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                    },
                  ],
                  "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                  "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                      "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                        { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                          "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                          "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                        },
                      ],
                      "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                    },
                  ],
                  "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                  "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                    { # HttpRouteRuleMatch criteria for a request's query parameter.
                      "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                      "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                      "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                    },
                  ],
                  "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                },
              ],
              "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
              "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                  "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                  "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                    "A String",
                  ],
                  "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                    "A String",
                  ],
                  "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                    "A String",
                  ],
                  "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                  "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                    "A String",
                  ],
                  "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                },
                "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                  "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                    "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                  "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                    "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                  },
                },
                "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                },
                "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                  "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                  "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                    "A String",
                  ],
                },
                "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                  "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                },
                "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                  { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                    "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                    "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                        "A String",
                      ],
                      "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                        { # Specification determining how headers are added to requests or responses.
                          "headerName": "A String", # The name of the header.
                          "headerValue": "A String", # The value of the header to add.
                          "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                        },
                      ],
                      "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                        "A String",
                      ],
                    },
                    "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                  },
                ],
              },
              "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
              "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
              },
            },
          ],
        },
      ],
      "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
        { # Message for the expected URL mappings.
          "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
          "description": "A String", # Description of this test case.
          "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
          "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
          "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
          "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
            { # HTTP headers used in UrlMapTests.
              "name": "A String", # Header name.
              "value": "A String", # Header value.
            },
          ],
          "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
          "path": "A String", # Path portion of the URL.
          "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
        },
      ],
    }

      requestId: string, An optional request ID to identify requests. Specify a unique request ID so that if you must retry your request, the server will know to ignore the request if it has already been completed. For example, consider a situation where you make an initial request and the request times out. If you make the request again with the same request ID, the server can check if original operation with the same request ID was received, and if so, will ignore the second request. This prevents clients from accidentally creating duplicate commitments. The request ID must be a valid UUID with the exception that zero UUID is not supported ( 00000000-0000-0000-0000-000000000000).
      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        { # Represents an Operation resource. Google Compute Engine has three Operation resources: * [Global](/compute/docs/reference/rest/alpha/globalOperations) * [Regional](/compute/docs/reference/rest/alpha/regionOperations) * [Zonal](/compute/docs/reference/rest/alpha/zoneOperations) You can use an operation resource to manage asynchronous API requests. For more information, read Handling API responses. Operations can be global, regional or zonal. - For global operations, use the `globalOperations` resource. - For regional operations, use the `regionOperations` resource. - For zonal operations, use the `zonalOperations` resource. For more information, read Global, Regional, and Zonal Resources.
      "clientOperationId": "A String", # [Output Only] The value of `requestId` if you provided it in the request. Not present otherwise.
      "creationTimestamp": "A String", # [Deprecated] This field is deprecated.
      "description": "A String", # [Output Only] A textual description of the operation, which is set when the operation is created.
      "endTime": "A String", # [Output Only] The time that this operation was completed. This value is in RFC3339 text format.
      "error": { # [Output Only] If errors are generated during processing of the operation, this field will be populated.
        "errors": [ # [Output Only] The array of errors encountered while processing this operation.
          {
            "code": "A String", # [Output Only] The error type identifier for this error.
            "errorDetails": [ # [Output Only] An optional list of messages that contain the error details. There is a set of defined message types to use for providing details.The syntax depends on the error code. For example, QuotaExceededInfo will have details when the error code is QUOTA_EXCEEDED.
              {
                "errorInfo": { # Describes the cause of the error with structured details. Example of an error when contacting the "pubsub.googleapis.com" API when it is not enabled: { "reason": "API_DISABLED" "domain": "googleapis.com" "metadata": { "resource": "projects/123", "service": "pubsub.googleapis.com" } } This response indicates that the pubsub.googleapis.com API is not enabled. Example of an error that is returned when attempting to create a Spanner instance in a region that is out of stock: { "reason": "STOCKOUT" "domain": "spanner.googleapis.com", "metadata": { "availableRegions": "us-central1,us-east2" } }
                  "domain": "A String", # The logical grouping to which the "reason" belongs. The error domain is typically the registered service name of the tool or product that generates the error. Example: "pubsub.googleapis.com". If the error is generated by some common infrastructure, the error domain must be a globally unique value that identifies the infrastructure. For Google API infrastructure, the error domain is "googleapis.com".
                  "metadatas": { # Additional structured details about this error. Keys should match /[a-zA-Z0-9-_]/ and be limited to 64 characters in length. When identifying the current value of an exceeded limit, the units should be contained in the key, not the value. For example, rather than {"instanceLimit": "100/request"}, should be returned as, {"instanceLimitPerRequest": "100"}, if the client exceeds the number of instances that can be created in a single (batch) request.
                    "a_key": "A String",
                  },
                  "reason": "A String", # The reason of the error. This is a constant value that identifies the proximate cause of the error. Error reasons are unique within a particular domain of errors. This should be at most 63 characters and match /[A-Z0-9_]+/.
                },
                "help": { # Provides links to documentation or for performing an out of band action. For example, if a quota check failed with an error indicating the calling project hasn't enabled the accessed service, this can contain a URL pointing directly to the right place in the developer console to flip the bit.
                  "links": [ # URL(s) pointing to additional information on handling the current error.
                    { # Describes a URL link.
                      "description": "A String", # Describes what the link offers.
                      "url": "A String", # The URL of the link.
                    },
                  ],
                },
                "localizedMessage": { # Provides a localized error message that is safe to return to the user which can be attached to an RPC error.
                  "locale": "A String", # The locale used following the specification defined at http://www.rfc-editor.org/rfc/bcp/bcp47.txt. Examples are: "en-US", "fr-CH", "es-MX"
                  "message": "A String", # The localized error message in the above locale.
                },
                "quotaInfo": { # Additional details for quota exceeded error for resource quota.
                  "dimensions": { # The map holding related quota dimensions.
                    "a_key": "A String",
                  },
                  "limit": 3.14, # Current effective quota limit. The limit's unit depends on the quota type or metric.
                  "limitName": "A String", # The name of the quota limit.
                  "metricName": "A String", # The Compute Engine quota metric name.
                },
              },
            ],
            "location": "A String", # [Output Only] Indicates the field in the request that caused the error. This property is optional.
            "message": "A String", # [Output Only] An optional, human-readable error message.
          },
        ],
      },
      "httpErrorMessage": "A String", # [Output Only] If the operation fails, this field contains the HTTP error message that was returned, such as `NOT FOUND`.
      "httpErrorStatusCode": 42, # [Output Only] If the operation fails, this field contains the HTTP error status code that was returned. For example, a `404` means the resource was not found.
      "id": "A String", # [Output Only] The unique identifier for the operation. This identifier is defined by the server.
      "insertTime": "A String", # [Output Only] The time that this operation was requested. This value is in RFC3339 text format.
      "kind": "compute#operation", # [Output Only] Type of the resource. Always `compute#operation` for Operation resources.
      "metadata": { # [Output Only] Service-specific metadata attached to this operation.
        "a_key": "", # Properties of the object. Contains field @type with type URL.
      },
      "name": "A String", # [Output Only] Name of the operation.
      "operationGroupId": "A String", # [Output Only] An ID that represents a group of operations, such as when a group of operations results from a `bulkInsert` API request.
      "operationType": "A String", # [Output Only] The type of operation, such as `insert`, `update`, or `delete`, and so on.
      "progress": 42, # [Output Only] An optional progress indicator that ranges from 0 to 100. There is no requirement that this be linear or support any granularity of operations. This should not be used to guess when the operation will be complete. This number should monotonically increase as the operation progresses.
      "region": "A String", # [Output Only] The URL of the region where the operation resides. Only applicable when performing regional operations.
      "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
      "selfLinkWithId": "A String", # [Output Only] Server-defined URL for this resource with the resource id.
      "startTime": "A String", # [Output Only] The time that this operation was started by the server. This value is in RFC3339 text format.
      "status": "A String", # [Output Only] The status of the operation, which can be one of the following: `PENDING`, `RUNNING`, or `DONE`.
      "statusMessage": "A String", # [Output Only] An optional textual description of the current status of the operation.
      "targetId": "A String", # [Output Only] The unique target ID, which identifies a specific incarnation of the target resource.
      "targetLink": "A String", # [Output Only] The URL of the resource that the operation modifies. For operations related to creating a snapshot, this points to the persistent disk that the snapshot was created from.
      "user": "A String", # [Output Only] User who requested the operation, for example: `user@example.com`.
      "warnings": [ # [Output Only] If warning messages are generated during processing of the operation, this field will be populated.
        {
          "code": "A String", # [Output Only] A warning code, if applicable. For example, Compute Engine returns NO_RESULTS_ON_PAGE if there are no results in the response.
          "data": [ # [Output Only] Metadata about this warning in key: value format. For example: "data": [ { "key": "scope", "value": "zones/us-east1-d" }
            {
              "key": "A String", # [Output Only] A key that provides more detail on the warning being returned. For example, for warnings where there are no results in a list request for a particular zone, this key might be scope and the key value might be the zone name. Other examples might be a key indicating a deprecated resource and a suggested replacement, or a warning about invalid network settings (for example, if an instance attempts to perform IP forwarding but is not enabled for IP forwarding).
              "value": "A String", # [Output Only] A warning data value corresponding to the key.
            },
          ],
          "message": "A String", # [Output Only] A human-readable description of the warning code.
        },
      ],
      "zone": "A String", # [Output Only] The URL of the zone where the operation resides. Only applicable when performing per-zone operations.
    }

`validate(project, urlMap, body=None, x__xgafv=None)`

    Runs static validation for the UrlMap. In particular, the tests of the provided UrlMap will be run. Calling this method does NOT create the UrlMap.

    Args:
      project: string, Project ID for this request. (required)
      urlMap: string, Name of the UrlMap resource to be validated as. (required)
      body: object, The request body.
        The object takes the form of:

    {
      "loadBalancingSchemes": [ # Specifies the load balancer type(s) this validation request is for. Use EXTERNAL_MANAGED for HTTP/HTTPS External Global Load Balancer with Advanced Traffic Management. Use EXTERNAL for Classic HTTP/HTTPS External Global Load Balancer. Other load balancer types are not supported. For more information, refer to Choosing a load balancer. If unspecified, the load balancing scheme will be inferred from the backend service resources this URL map references. If that can not be inferred (for example, this URL map only references backend buckets, or this Url map is for rewrites and redirects only and doesn't reference any backends), EXTERNAL will be used as the default type. If specified, the scheme(s) must not conflict with the load balancing scheme of the backend service resources this Url map references.
        "A String",
      ],
      "resource": { # Represents a URL Map resource. Compute Engine has two URL Map resources: * [Global](/compute/docs/reference/rest/alpha/urlMaps) * [Regional](/compute/docs/reference/rest/alpha/regionUrlMaps) A URL map resource is a component of certain types of cloud load balancers and Traffic Director: * urlMaps are used by external HTTP(S) load balancers and Traffic Director. * regionUrlMaps are used by internal HTTP(S) load balancers. For a list of supported URL map features by the load balancer type, see the Load balancing features: Routing and traffic management table. For a list of supported URL map features for Traffic Director, see the Traffic Director features: Routing and traffic management table. This resource defines mappings from hostnames and URL paths to either a backend service or a backend bucket. To use the global urlMaps resource, the backend service must have a loadBalancingScheme of either EXTERNAL or INTERNAL_SELF_MANAGED. To use the regionUrlMaps resource, the backend service must have a loadBalancingScheme of INTERNAL_MANAGED. For more information, read URL Map Concepts. # Content of the UrlMap to be validated.
        "creationTimestamp": "A String", # [Output Only] Creation timestamp in RFC3339 text format.
        "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the Load Balancer level and applies only when no policy has been defined for the error code at lower levels like PathMatcher, RouteRule and PathRule within this UrlMap. For example, consider a UrlMap with the following configuration: - defaultCustomErrorResponsePolicy containing policies for responding to 5xx and 4xx errors - A PathMatcher configured for *.example.com has defaultCustomErrorResponsePolicy for 4xx. If a request for http://www.example.com/ encounters a 404, the policy in pathMatcher.defaultCustomErrorResponsePolicy will be enforced. When the request for http://www.example.com/ encounters a 502, the policy in UrlMap.defaultCustomErrorResponsePolicy will be enforced. When a request that does not match any host in *.example.com such as http://www.myotherexample.com/, encounters a 404, UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
          "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
            { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
              "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                "A String",
              ],
              "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
              "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
            },
          ],
          "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
        },
        "defaultRouteAction": { # defaultRouteAction takes effect when none of the hostRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within defaultRouteAction. defaultRouteAction has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
          "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
            "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
            "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
              "A String",
            ],
            "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
              "A String",
            ],
            "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
              "A String",
            ],
            "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
              "A String",
            ],
            "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
            "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
              "A String",
            ],
            "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
          },
          "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
            "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
              "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
              "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
            },
            "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
              "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
            },
          },
          "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
          },
          "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
            "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
            "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
              "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
            },
            "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
              "A String",
            ],
          },
          "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
            "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
            "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
          },
          "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
            "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
            "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
          },
          "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
            { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
              "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
              "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                  "A String",
                ],
                "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                  { # Specification determining how headers are added to requests or responses.
                    "headerName": "A String", # The name of the header.
                    "headerValue": "A String", # The value of the header to add.
                    "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                  },
                ],
                "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                  "A String",
                ],
              },
              "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
            },
          ],
        },
        "defaultService": "A String", # The full or partial URL of the defaultService resource to which traffic is directed if none of the hostRules match. If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. defaultService has no effect when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
        "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified hostRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
          "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
          "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
          "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
          "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
          "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
          "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
        },
        "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
        "fingerprint": "A String", # Fingerprint of this resource. A hash of the contents stored in this object. This field is used in optimistic locking. This field is ignored when inserting a UrlMap. An up-to-date fingerprint must be provided in order to update the UrlMap, otherwise the request will fail with error 412 conditionNotMet. To see the latest fingerprint, make a get() request to retrieve a UrlMap.
        "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction specified here take effect after headerAction specified under pathMatcher. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
            { # Specification determining how headers are added to requests or responses.
              "headerName": "A String", # The name of the header.
              "headerValue": "A String", # The value of the header to add.
              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
            },
          ],
          "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
            "A String",
          ],
          "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
            { # Specification determining how headers are added to requests or responses.
              "headerName": "A String", # The name of the header.
              "headerValue": "A String", # The value of the header to add.
              "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
            },
          ],
          "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
            "A String",
          ],
        },
        "hostRules": [ # The list of host rules to use against the URL.
          { # UrlMaps A host-matching rule for a URL. If matched, will use the named PathMatcher to select the BackendService.
            "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
            "hosts": [ # The list of host patterns to match. They must be valid hostnames with optional port numbers in the format host:port. * matches any string of ([a-z0-9-.]*). In that case, * must be the first character, and if followed by anything, the immediate following character must be either - or .. * based matching is not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
              "A String",
            ],
            "pathMatcher": "A String", # The name of the PathMatcher to use to match the path portion of the URL if the hostRule matches the URL's host portion.
          },
        ],
        "id": "A String", # [Output Only] The unique identifier for the resource. This identifier is defined by the server.
        "kind": "compute#urlMap", # [Output Only] Type of the resource. Always compute#urlMaps for url maps.
        "name": "A String", # Name of the resource. Provided by the client when the resource is created. The name must be 1-63 characters long, and comply with RFC1035. Specifically, the name must be 1-63 characters long and match the regular expression `[a-z]([-a-z0-9]*[a-z0-9])?` which means the first character must be a lowercase letter, and all following characters must be a dash, lowercase letter, or digit, except the last character, which cannot be a dash.
        "pathMatchers": [ # The list of named PathMatchers to use against the URL.
          { # A matcher for the path portion of the URL. The BackendService from the longest-matched rule will serve the URL. If no rule was matched, the default service is used.
            "defaultCustomErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # defaultCustomErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. This policy takes effect at the PathMatcher level and applies only when no policy has been defined for the error code at lower levels like RouteRule and PathRule within this PathMatcher. If an error code does not have a policy defined in defaultCustomErrorResponsePolicy, then a policy defined for the error code in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy is configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with pathMatcher.defaultRouteAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the defaultCustomErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the defaultCustomErrorResponsePolicy is ignored and the response from the service is returned to the client. defaultCustomErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
              "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                  "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                    "A String",
                  ],
                  "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                  "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                },
              ],
              "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
            },
            "defaultRouteAction": { # defaultRouteAction takes effect when none of the pathRules or routeRules match. The load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If defaultRouteAction specifies any weightedBackendServices, defaultService must not be set. Conversely if defaultService is set, defaultRouteAction cannot contain any weightedBackendServices. Only one of defaultRouteAction or defaultUrlRedirect must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a path matcher's defaultRouteAction.
              "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                  "A String",
                ],
                "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                  "A String",
                ],
                "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                  "A String",
                ],
                "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                  "A String",
                ],
                "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                  "A String",
                ],
                "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
              },
              "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                  "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                  "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                },
                "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                  "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                },
              },
              "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
              },
              "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                  "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                  "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                },
                "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                  "A String",
                ],
              },
              "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
              },
              "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
              },
              "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                  "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                  "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                      "A String",
                    ],
                    "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                      { # Specification determining how headers are added to requests or responses.
                        "headerName": "A String", # The name of the header.
                        "headerValue": "A String", # The value of the header to add.
                        "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                      },
                    ],
                    "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                      "A String",
                    ],
                  },
                  "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                },
              ],
            },
            "defaultService": "A String", # The full or partial URL to the BackendService resource. This URL is used if none of the pathRules or routeRules defined by this PathMatcher are matched. For example, the following are all valid URLs to a BackendService resource: - https://www.googleapis.com/compute/v1/projects/project /global/backendServices/backendService - compute/v1/projects/project/global/backendServices/backendService - global/backendServices/backendService If defaultRouteAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if defaultService is specified, defaultRouteAction cannot contain any weightedBackendServices. Conversely, if defaultRouteAction specifies any weightedBackendServices, defaultService must not be specified. Only one of defaultService, defaultUrlRedirect , or defaultRouteAction.weightedBackendService must be set. Authorization requires one or more of the following Google IAM permissions on the specified resource default_service: - compute.backendBuckets.use - compute.backendServices.use
            "defaultUrlRedirect": { # Specifies settings for an HTTP redirect. # When none of the specified pathRules or routeRules match, the request is redirected to a URL specified by defaultUrlRedirect. If defaultUrlRedirect is specified, defaultService or defaultRouteAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
              "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
              "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
              "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
              "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
              "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
              "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
            },
            "description": "A String", # An optional description of this resource. Provide this property when you create the resource.
            "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backend service. HeaderAction specified here are applied after the matching HttpRouteRule HeaderAction and before the HeaderAction in the UrlMap HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
              "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                "A String",
              ],
              "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                { # Specification determining how headers are added to requests or responses.
                  "headerName": "A String", # The name of the header.
                  "headerValue": "A String", # The value of the header to add.
                  "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                },
              ],
              "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                "A String",
              ],
            },
            "name": "A String", # The name to which this PathMatcher is referred by the HostRule.
            "pathRules": [ # The list of path rules. Use this list instead of routeRules when routing based on simple path matching is all that's required. The order by which path rules are specified does not matter. Matches are always done on the longest-path-first basis. For example: a pathRule with a path /a/b/c/* will match before /a/b/* irrespective of the order in which those paths appear in this list. Within a given pathMatcher, only one of pathRules or routeRules must be set.
              { # A path-matching rule for a URL. If matched, will use the specified BackendService to handle the traffic arriving at this URL.
                "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the PathRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A PathRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in PathRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                  "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                    { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                      "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                        "A String",
                      ],
                      "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                      "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                    },
                  ],
                  "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                },
                "paths": [ # The list of path patterns to match. Each must start with / and the only place a * is allowed is at the end following a /. The string fed to the path matcher does not include any text after the first ? or #, and those chars are not allowed here.
                  "A String",
                ],
                "routeAction": { # In response to a matching path, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of routeAction or urlRedirect must be set. URL maps for external HTTP(S) load balancers support only the urlRewrite action within a path rule's routeAction.
                  "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                    "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                    "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                      "A String",
                    ],
                    "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                      "A String",
                    ],
                    "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                      "A String",
                    ],
                    "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                      "A String",
                    ],
                    "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                    "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                      "A String",
                    ],
                    "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                  },
                  "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                    "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                      "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                    },
                    "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                      "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                    },
                  },
                  "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                  },
                  "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                    "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                    "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                      "A String",
                    ],
                  },
                  "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                    "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                  },
                  "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                    { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                      "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                    },
                  ],
                },
                "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                "urlRedirect": { # Specifies settings for an HTTP redirect. # When a path pattern is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                  "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                  "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                  "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                  "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                  "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                  "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                },
              },
            ],
            "routeRules": [ # The list of HTTP route rules. Use this list instead of pathRules when advanced route matching and routing actions are desired. routeRules are evaluated in order of priority, from the lowest to highest number. Within a given pathMatcher, you can set only one of pathRules or routeRules.
              { # The HttpRouteRule setting specifies how to match an HTTP request and the corresponding routing action that load balancing proxies perform.
                "customErrorResponsePolicy": { # Specifies the custom error response policy that must be applied when the backend service or backend bucket responds with an error. # customErrorResponsePolicy specifies how the Load Balancer returns error responses when BackendServiceor BackendBucket responds with an error. If a policy for an error code is not configured for the RouteRule, a policy for the error code configured in pathMatcher.defaultCustomErrorResponsePolicy is applied. If one is not specified in pathMatcher.defaultCustomErrorResponsePolicy, the policy configured in UrlMap.defaultCustomErrorResponsePolicy takes effect. For example, consider a UrlMap with the following configuration: - UrlMap.defaultCustomErrorResponsePolicy are configured with policies for 5xx and 4xx errors - A RouteRule for /coming_soon/ is configured for the error code 404. If the request is for www.myotherdomain.com and a 404 is encountered, the policy under UrlMap.defaultCustomErrorResponsePolicy takes effect. If a 404 response is encountered for the request www.example.com/current_events/, the pathMatcher's policy takes effect. If however, the request for www.example.com/coming_soon/ encounters a 404, the policy in RouteRule.customErrorResponsePolicy takes effect. If any of the requests in this example encounter a 500 error code, the policy at UrlMap.defaultCustomErrorResponsePolicy takes effect. When used in conjunction with routeRules.routeAction.retryPolicy, retries take precedence. Only once all retries are exhausted, the customErrorResponsePolicy is applied. While attempting a retry, if load balancer is successful in reaching the service, the customErrorResponsePolicy is ignored and the response from the service is returned to the client. customErrorResponsePolicy is supported only for Global External HTTP(S) load balancing.
                  "errorResponseRules": [ # Specifies rules for returning error responses. In a given policy, if you specify rules for both a range of error codes as well as rules for specific error codes then rules with specific error codes have a higher priority. For example, assume that you configure a rule for 401 (Un-authorized) code, and another for all 4 series error codes (4XX). If the backend service returns a 401, then the rule for 401 will be applied. However if the backend service returns a 403, the rule for 4xx takes effect.
                    { # Specifies the mapping between the response code that will be returned along with the custom error content and the response code returned by the backend service.
                      "matchResponseCodes": [ # Valid values include: - A number between 400 and 599: For example 401 or 503, in which case the load balancer applies the policy if the error code exactly matches this value. - 5xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 500 to 599. - 4xx: Load Balancer will apply the policy if the backend service responds with any response code in the range of 400 to 499. Values must be unique within matchResponseCodes and across all errorResponseRules of CustomErrorResponsePolicy.
                        "A String",
                      ],
                      "overrideResponseCode": 42, # The HTTP status code returned with the response containing the custom error content. If overrideResponseCode is not supplied, the same response code returned by the original backend bucket or backend service is returned to the client.
                      "path": "A String", # The full path to a file within backendBucket . For example: /errors/defaultError.html path must start with a leading slash. path cannot have trailing slashes. If the file is not available in backendBucket or the load balancer cannot reach the BackendBucket, a simple Not Found Error is returned to the client. The value must be from 1 to 1024 characters
                    },
                  ],
                  "errorService": "A String", # The full or partial URL to the BackendBucket resource that contains the custom error content. Examples are: - https://www.googleapis.com/compute/v1/projects/project/global/backendBuckets/myBackendBucket - compute/v1/projects/project/global/backendBuckets/myBackendBucket - global/backendBuckets/myBackendBucket If errorService is not specified at lower levels like pathMatcher, pathRule and routeRule, an errorService specified at a higher level in the UrlMap will be used. If UrlMap.defaultCustomErrorResponsePolicy contains one or more errorResponseRules[], it must specify errorService. If load balancer cannot reach the backendBucket, a simple Not Found Error will be returned, with the original response code (or overrideResponseCode if configured). errorService is not supported for internal or regional HTTP/HTTPS load balancers.
                },
                "description": "A String", # The short description conveying the intent of this routeRule. The description can have a maximum length of 1024 characters.
                "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. The headerAction value specified here is applied before the matching pathMatchers[].headerAction and after pathMatchers[].routeRules[].routeAction.weightedBackendService.backendServiceWeightAction[].headerAction HeaderAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                    "A String",
                  ],
                  "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                    { # Specification determining how headers are added to requests or responses.
                      "headerName": "A String", # The name of the header.
                      "headerValue": "A String", # The value of the header to add.
                      "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                    },
                  ],
                  "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                    "A String",
                  ],
                },
                "httpFilterConfigs": [ # Outbound route specific configuration for networkservices.HttpFilter resources enabled by Traffic Director. httpFilterConfigs only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                    "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                    "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                    "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                  },
                ],
                "httpFilterMetadata": [ # Outbound route specific metadata supplied to networkservices.HttpFilter resources enabled by Traffic Director. httpFilterMetadata only applies for load balancers with loadBalancingScheme set to INTERNAL_SELF_MANAGED. See ForwardingRule for more details. The only configTypeUrl supported is type.googleapis.com/google.protobuf.Struct Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                  { # HttpFilterConfiguration supplies additional contextual settings for networkservices.HttpFilter resources enabled by Traffic Director.
                    "config": "A String", # The configuration needed to enable the networkservices.HttpFilter resource. The configuration must be YAML formatted and only contain fields defined in the protobuf identified in configTypeUrl
                    "configTypeUrl": "A String", # The fully qualified versioned proto3 type url of the protobuf that the filter expects for its contextual settings, for example: type.googleapis.com/google.protobuf.Struct
                    "filterName": "A String", # Name of the networkservices.HttpFilter resource this configuration belongs to. This name must be known to the xDS client. Example: envoy.wasm
                  },
                ],
                "matchRules": [ # The list of criteria for matching attributes of a request to this routeRule. This list has OR semantics: the request matches this routeRule when any of the matchRules are satisfied. However predicates within a given matchRule have AND semantics. All predicates within a matchRule must match for the request to match the rule.
                  { # HttpRouteRuleMatch specifies a set of criteria for matching requests to an HttpRouteRule. All specified criteria must be satisfied for a match to occur.
                    "fullPathMatch": "A String", # For satisfying the matchRule condition, the path of the request must exactly match the value specified in fullPathMatch after removing any query parameters and anchor that may be part of the original URL. fullPathMatch must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                    "headerMatches": [ # Specifies a list of header match criteria, all of which must match corresponding headers in the request.
                      { # matchRule criteria for request header matches.
                        "exactMatch": "A String", # The value should exactly match contents of exactMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                        "headerName": "A String", # The name of the HTTP header to match. For matching against the HTTP request's authority, use a headerMatch with the header name ":authority". For matching a request's method, use the headerName ":method". When the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true, only non-binary user-specified custom metadata and the `content-type` header are supported. The following transport-level headers cannot be used in header matching rules: `:authority`, `:method`, `:path`, `:scheme`, `user-agent`, `accept-encoding`, `content-encoding`, `grpc-accept-encoding`, `grpc-encoding`, `grpc-previous-rpc-attempts`, `grpc-tags-bin`, `grpc-timeout` and `grpc-trace-bin`.
                        "invertMatch": True or False, # If set to false, the headerMatch is considered a match if the preceding match criteria are met. If set to true, the headerMatch is considered a match if the preceding match criteria are NOT met. The default setting is false.
                        "prefixMatch": "A String", # The value of the header must start with the contents of prefixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                        "presentMatch": True or False, # A header with the contents of headerName must exist. The match takes place whether or not the request's header has a value. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                        "rangeMatch": { # HttpRouteRuleMatch criteria for field values that must stay within the specified integer range. # The header value must be an integer and its value must be in the range specified in rangeMatch. If the header does not contain an integer, number or is empty, the match fails. For example for a range [-5, 0] - -3 will match. - 0 will not match. - 0.25 will not match. - -3someString will not match. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. rangeMatch is not supported for load balancers that have loadBalancingScheme set to EXTERNAL.
                          "rangeEnd": "A String", # The end of the range (exclusive) in signed long integer format.
                          "rangeStart": "A String", # The start of the range (inclusive) in signed long integer format.
                        },
                        "regexMatch": "A String", # The value of the header must match the regular expression specified in regexMatch. For more information about regular expression syntax, see Syntax. For matching against a port specified in the HTTP request, use a headerMatch with headerName set to PORT and a regular expression that satisfies the RFC2616 Host header's port specifier. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                        "suffixMatch": "A String", # The value of the header must end with the contents of suffixMatch. Only one of exactMatch, prefixMatch, suffixMatch, regexMatch, presentMatch or rangeMatch must be set.
                      },
                    ],
                    "ignoreCase": True or False, # Specifies that prefixMatch and fullPathMatch matches are case sensitive. The default value is false. ignoreCase must not be used with regexMatch. Not supported when the URL map is bound to a target gRPC proxy.
                    "metadataFilters": [ # Opaque filter criteria used by the load balancer to restrict routing configuration to a limited set of xDS compliant clients. In their xDS requests to the load balancer, xDS clients present node metadata. When there is a match, the relevant routing configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. If multiple metadata filters are specified, all of them need to be satisfied in order to be considered a match. metadataFilters specified here is applied after those specified in ForwardingRule that refers to the UrlMap this HttpRouteRuleMatch belongs to. metadataFilters only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                      { # Opaque filter criteria used by load balancers to restrict routing configuration to a limited set of load balancing proxies. Proxies and sidecars involved in load balancing would typically present metadata to the load balancers that need to match criteria specified here. If a match takes place, the relevant configuration is made available to those proxies. For each metadataFilter in this list, if its filterMatchCriteria is set to MATCH_ANY, at least one of the filterLabels must match the corresponding label provided in the metadata. If its filterMatchCriteria is set to MATCH_ALL, then all of its filterLabels must match with corresponding labels provided in the metadata. An example for using metadataFilters would be: if load balancing involves Envoys, they receive routing configuration when values in metadataFilters match values supplied in of their XDS requests to loadbalancers.
                        "filterLabels": [ # The list of label value pairs that must match labels in the provided metadata based on filterMatchCriteria This list must not be empty and can have at the most 64 entries.
                          { # MetadataFilter label name value pairs that are expected to match corresponding labels presented as metadata to the load balancer.
                            "name": "A String", # Name of metadata label. The name can have a maximum length of 1024 characters and must be at least 1 character long.
                            "value": "A String", # The value of the label must match the specified value. value can have a maximum length of 1024 characters.
                          },
                        ],
                        "filterMatchCriteria": "A String", # Specifies how individual filter label matches within the list of filterLabels and contributes toward the overall metadataFilter match. Supported values are: - MATCH_ANY: at least one of the filterLabels must have a matching label in the provided metadata. - MATCH_ALL: all filterLabels must have matching labels in the provided metadata.
                      },
                    ],
                    "prefixMatch": "A String", # For satisfying the matchRule condition, the request's path must begin with the specified prefixMatch. prefixMatch must begin with a /. The value must be from 1 to 1024 characters. Only one of prefixMatch, fullPathMatch or regexMatch must be specified.
                    "queryParameterMatches": [ # Specifies a list of query parameter match criteria, all of which must match corresponding query parameters in the request. Not supported when the URL map is bound to a target gRPC proxy.
                      { # HttpRouteRuleMatch criteria for a request's query parameter.
                        "exactMatch": "A String", # The queryParameterMatch matches if the value of the parameter exactly matches the contents of exactMatch. Only one of presentMatch, exactMatch, or regexMatch must be set.
                        "name": "A String", # The name of the query parameter to match. The query parameter must exist in the request, in the absence of which the request match fails.
                        "presentMatch": True or False, # Specifies that the queryParameterMatch matches if the request contains the query parameter, irrespective of whether the parameter has a value or not. Only one of presentMatch, exactMatch, or regexMatch must be set.
                        "regexMatch": "A String", # The queryParameterMatch matches if the value of the parameter matches the regular expression specified by regexMatch. For more information about regular expression syntax, see Syntax. Only one of presentMatch, exactMatch, or regexMatch must be set. regexMatch only applies when the loadBalancingScheme is set to INTERNAL_SELF_MANAGED.
                      },
                    ],
                    "regexMatch": "A String", # For satisfying the matchRule condition, the path of the request must satisfy the regular expression specified in regexMatch after removing any query parameters and anchor supplied with the original URL. For more information about regular expression syntax, see Syntax. Only one of prefixMatch, fullPathMatch or regexMatch must be specified. regexMatch only applies to load balancers that have loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                  },
                ],
                "priority": 42, # For routeRules within a given pathMatcher, priority determines the order in which a load balancer interprets routeRules. RouteRules are evaluated in order of priority, from the lowest to highest number. The priority of a rule decreases as its number increases (1, 2, 3, N+1). The first rule that matches the request is applied. You cannot configure two or more routeRules with the same priority. Priority for each rule must be set to a number from 0 to 2147483647 inclusive. Priority numbers can have gaps, which enable you to add or remove rules in the future without affecting the rest of the rules. For example, 1, 2, 3, 4, 5, 9, 12, 16 is a valid series of priority numbers to which you could add rules numbered from 6 to 8, 10 to 11, and 13 to 15 in the future without any impact on existing rules.
                "routeAction": { # In response to a matching matchRule, the load balancer performs advanced routing actions, such as URL rewrites and header transformations, before forwarding the request to the selected backend. If routeAction specifies any weightedBackendServices, service must not be set. Conversely if service is set, routeAction cannot contain any weightedBackendServices. Only one of urlRedirect, service or routeAction.weightedBackendService must be set. UrlMaps for external HTTP(S) load balancers support only the urlRewrite action within a route rule's routeAction.
                  "corsPolicy": { # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. # The specification for allowing client-side cross-origin requests. For more information about the W3C recommendation for cross-origin resource sharing (CORS), see Fetch API Living Standard. Not supported when the URL map is bound to a target gRPC proxy.
                    "allowCredentials": True or False, # In response to a preflight request, setting this to true indicates that the actual request can include user credentials. This field translates to the Access-Control-Allow-Credentials header. Default is false.
                    "allowHeaders": [ # Specifies the content for the Access-Control-Allow-Headers header.
                      "A String",
                    ],
                    "allowMethods": [ # Specifies the content for the Access-Control-Allow-Methods header.
                      "A String",
                    ],
                    "allowOriginRegexes": [ # Specifies a regular expression that matches allowed origins. For more information about the regular expression syntax, see Syntax. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                      "A String",
                    ],
                    "allowOrigins": [ # Specifies the list of origins that is allowed to do CORS requests. An origin is allowed if it matches either an item in allowOrigins or an item in allowOriginRegexes.
                      "A String",
                    ],
                    "disabled": True or False, # If true, the setting specifies the CORS policy is disabled. The default value of false, which indicates that the CORS policy is in effect.
                    "exposeHeaders": [ # Specifies the content for the Access-Control-Expose-Headers header.
                      "A String",
                    ],
                    "maxAge": 42, # Specifies how long results of a preflight request can be cached in seconds. This field translates to the Access-Control-Max-Age header.
                  },
                  "faultInjectionPolicy": { # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by the load balancer on a percentage of requests before sending those request to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. # The specification for fault injection introduced into traffic to test the resiliency of clients to backend service failure. As part of fault injection, when clients send requests to a backend service, delays can be introduced by a load balancer on a percentage of requests before sending those requests to the backend service. Similarly requests from clients can be aborted by the load balancer for a percentage of requests. timeout and retry_policy is ignored by clients that are configured with a fault_injection_policy if: 1. The traffic is generated by fault injection AND 2. The fault injection is not a delay fault injection. Fault injection is not supported with the global external HTTP(S) load balancer (classic). To see which load balancers support fault injection, see Load balancing: Routing and traffic management features.
                    "abort": { # Specification for how requests are aborted as part of fault injection. # The specification for how client requests are aborted as part of fault injection.
                      "httpStatus": 42, # The HTTP status code used to abort the request. The value must be from 200 to 599 inclusive. For gRPC protocol, the gRPC status code is mapped to HTTP status code according to this mapping table. HTTP status 200 is mapped to gRPC status UNKNOWN. Injecting an OK status is currently not supported by Traffic Director.
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests that is aborted as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                    },
                    "delay": { # Specifies the delay introduced by the load balancer before forwarding the request to the backend service as part of fault injection. # The specification for how client requests are delayed as part of fault injection, before being sent to a backend service.
                      "fixedDelay": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the value of the fixed delay interval.
                        "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                        "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                      },
                      "percentage": 3.14, # The percentage of traffic for connections, operations, or requests for which a delay is introduced as part of fault injection. The value must be from 0.0 to 100.0 inclusive.
                    },
                  },
                  "maxStreamDuration": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the maximum duration (timeout) for streams on the selected route. Unlike the timeout field where the timeout duration starts from the time the request has been fully processed (known as *end-of-stream*), the duration in this field is computed from the beginning of the stream until the response has been processed, including all retries. A stream that does not complete in this duration is closed. If not specified, this field uses the maximum maxStreamDuration value among all backend services associated with the route. This field is only allowed if the Url map is used with backend services with loadBalancingScheme set to INTERNAL_SELF_MANAGED.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "requestMirrorPolicy": { # A policy that specifies how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer doesn't wait for responses from the shadow service. Before sending traffic to the shadow service, the host or authority header is suffixed with -shadow. # Specifies the policy on how requests intended for the route's backends are shadowed to a separate mirrored backend service. The load balancer does not wait for responses from the shadow service. Before sending traffic to the shadow service, the host / authority header is suffixed with -shadow. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "backendService": "A String", # The full or partial URL to the BackendService resource being mirrored to. The backend service configured for a mirroring policy must reference backends that are of the same type as the original backend service matched in the URL map. Serverless NEG backends are not currently supported as a mirrored backend service.
                  },
                  "retryPolicy": { # The retry policy associates with HttpRouteRule # Specifies the retry policy associated with this route.
                    "numRetries": 42, # Specifies the allowed number retries. This number must be > 0. If not specified, defaults to 1.
                    "perTryTimeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies a non-zero timeout per retry attempt. If not specified, will use the timeout set in the HttpRouteAction field. If timeout in the HttpRouteAction field is not set, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                      "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                      "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                    },
                    "retryConditions": [ # Specifies one or more conditions when this retry policy applies. Valid values are: - 5xx: retry is attempted if the instance or endpoint responds with any 5xx response code, or if the instance or endpoint does not respond at all. For example, disconnects, reset, read timeout, connection failure, and refused streams. - gateway-error: Similar to 5xx, but only applies to response codes 502, 503 or 504. - connect-failure: a retry is attempted on failures connecting to the instance or endpoint. For example, connection timeouts. - retriable-4xx: a retry is attempted if the instance or endpoint responds with a 4xx response code. The only error that you can retry is error code 409. - refused-stream: a retry is attempted if the instance or endpoint resets the stream with a REFUSED_STREAM error code. This reset type indicates that it is safe to retry. - cancelled: a retry is attempted if the gRPC status code in the response header is set to cancelled. - deadline-exceeded: a retry is attempted if the gRPC status code in the response header is set to deadline-exceeded. - internal: a retry is attempted if the gRPC status code in the response header is set to internal. - resource-exhausted: a retry is attempted if the gRPC status code in the response header is set to resource-exhausted. - unavailable: a retry is attempted if the gRPC status code in the response header is set to unavailable. Only the following codes are supported when the URL map is bound to target gRPC proxy that has validateForProxyless field set to true. - cancelled - deadline-exceeded - internal - resource-exhausted - unavailable
                      "A String",
                    ],
                  },
                  "timeout": { # A Duration represents a fixed-length span of time represented as a count of seconds and fractions of seconds at nanosecond resolution. It is independent of any calendar and concepts like "day" or "month". Range is approximately 10,000 years. # Specifies the timeout for the selected route. Timeout is computed from the time the request has been fully processed (known as *end-of-stream*) up until the response has been processed. Timeout includes all retries. If not specified, this field uses the largest timeout among all backend services associated with the route. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                    "nanos": 42, # Span of time that's a fraction of a second at nanosecond resolution. Durations less than one second are represented with a 0 `seconds` field and a positive `nanos` field. Must be from 0 to 999,999,999 inclusive.
                    "seconds": "A String", # Span of time at a resolution of a second. Must be from 0 to 315,576,000,000 inclusive. Note: these bounds are computed from: 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
                  },
                  "urlRewrite": { # The spec for modifying the path before sending the request to the matched backend service. # The spec to modify the URL of the request, before forwarding the request to the matched service. urlRewrite is the only action supported in UrlMaps for external HTTP(S) load balancers. Not supported when the URL map is bound to a target gRPC proxy that has the validateForProxyless field set to true.
                    "hostRewrite": "A String", # Before forwarding the request to the selected service, the request's host header is replaced with contents of hostRewrite. The value must be from 1 to 255 characters.
                    "pathPrefixRewrite": "A String", # Before forwarding the request to the selected backend service, the matching portion of the request's path is replaced by pathPrefixRewrite. The value must be from 1 to 1024 characters.
                  },
                  "weightedBackendServices": [ # A list of weighted backend services to send traffic to when a route match occurs. The weights determine the fraction of traffic that flows to their corresponding backend service. If all traffic needs to go to a single backend service, there must be one weightedBackendService with weight set to a non-zero number. After a backend service is identified and before forwarding the request to the backend service, advanced routing actions such as URL rewrites and header transformations are applied depending on additional settings specified in this HttpRouteAction.
                    { # In contrast to a single BackendService in HttpRouteAction to which all matching traffic is directed to, WeightedBackendService allows traffic to be split across multiple backend services. The volume of traffic for each backend service is proportional to the weight specified in each WeightedBackendService
                      "backendService": "A String", # The full or partial URL to the default BackendService resource. Before forwarding the request to backendService, the load balancer applies any relevant headerActions specified as part of this backendServiceWeight.
                      "headerAction": { # The request and response header transformations that take effect before the request is passed along to the selected backendService. # Specifies changes to request and response headers that need to take effect for the selected backendService. headerAction specified here take effect before headerAction in the enclosing HttpRouteRule, PathMatcher and UrlMap. headerAction is not supported for load balancers that have their loadBalancingScheme set to EXTERNAL. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
                        "requestHeadersToAdd": [ # Headers to add to a matching request before forwarding the request to the backendService.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "requestHeadersToRemove": [ # A list of header names for headers that need to be removed from the request before forwarding the request to the backendService.
                          "A String",
                        ],
                        "responseHeadersToAdd": [ # Headers to add the response before sending the response back to the client.
                          { # Specification determining how headers are added to requests or responses.
                            "headerName": "A String", # The name of the header.
                            "headerValue": "A String", # The value of the header to add.
                            "replace": True or False, # If false, headerValue is appended to any values that already exist for the header. If true, headerValue is set for the header, discarding any values that were set for that header. The default value is false.
                          },
                        ],
                        "responseHeadersToRemove": [ # A list of header names for headers that need to be removed from the response before sending the response back to the client.
                          "A String",
                        ],
                      },
                      "weight": 42, # Specifies the fraction of traffic sent to a backend service, computed as weight / (sum of all weightedBackendService weights in routeAction) . The selection of a backend service is determined only for new traffic. Once a user's request has been directed to a backend service, subsequent requests are sent to the same backend service as determined by the backend service's session affinity policy. The value must be from 0 to 1000.
                    },
                  ],
                },
                "service": "A String", # The full or partial URL of the backend service resource to which traffic is directed if this rule is matched. If routeAction is also specified, advanced routing actions, such as URL rewrites, take effect before sending the request to the backend. However, if service is specified, routeAction cannot contain any weightedBackendServices. Conversely, if routeAction specifies any weightedBackendServices, service must not be specified. Only one of urlRedirect, service or routeAction.weightedBackendService must be set.
                "urlRedirect": { # Specifies settings for an HTTP redirect. # When this rule is matched, the request is redirected to a URL specified by urlRedirect. If urlRedirect is specified, service or routeAction must not be set. Not supported when the URL map is bound to a target gRPC proxy.
                  "hostRedirect": "A String", # The host that is used in the redirect response instead of the one that was supplied in the request. The value must be from 1 to 255 characters.
                  "httpsRedirect": True or False, # If set to true, the URL scheme in the redirected request is set to HTTPS. If set to false, the URL scheme of the redirected request remains the same as that of the request. This must only be set for URL maps used in TargetHttpProxys. Setting this true for TargetHttpsProxy is not permitted. The default is set to false.
                  "pathRedirect": "A String", # The path that is used in the redirect response instead of the one that was supplied in the request. pathRedirect cannot be supplied together with prefixRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                  "prefixRedirect": "A String", # The prefix that replaces the prefixMatch specified in the HttpRouteRuleMatch, retaining the remaining portion of the URL before redirecting the request. prefixRedirect cannot be supplied together with pathRedirect. Supply one alone or neither. If neither is supplied, the path of the original request is used for the redirect. The value must be from 1 to 1024 characters.
                  "redirectResponseCode": "A String", # The HTTP Status code to use for this RedirectAction. Supported values are: - MOVED_PERMANENTLY_DEFAULT, which is the default value and corresponds to 301. - FOUND, which corresponds to 302. - SEE_OTHER which corresponds to 303. - TEMPORARY_REDIRECT, which corresponds to 307. In this case, the request method is retained. - PERMANENT_REDIRECT, which corresponds to 308. In this case, the request method is retained.
                  "stripQuery": True or False, # If set to true, any accompanying query portion of the original URL is removed before redirecting the request. If set to false, the query portion of the original URL is retained. The default is set to false.
                },
              },
            ],
          },
        ],
        "region": "A String", # [Output Only] URL of the region where the regional URL map resides. This field is not applicable to global URL maps. You must specify this field as part of the HTTP request URL. It is not settable as a field in the request body.
        "selfLink": "A String", # [Output Only] Server-defined URL for the resource.
        "tests": [ # The list of expected URL mapping tests. Request to update the UrlMap succeeds only if all test cases pass. You can specify a maximum of 100 tests per UrlMap. Not supported when the URL map is bound to a target gRPC proxy that has validateForProxyless field set to true.
          { # Message for the expected URL mappings.
            "backendServiceWeight": 42, # The weight to use for the supplied host and path when using advanced routing rules that involve traffic splitting.
            "description": "A String", # Description of this test case.
            "expectedOutputUrl": "A String", # The expected output URL evaluated by the load balancer containing the scheme, host, path and query parameters. For rules that forward requests to backends, the test passes only when expectedOutputUrl matches the request forwarded by the load balancer to backends. For rules with urlRewrite, the test verifies that the forwarded request matches hostRewrite and pathPrefixRewrite in the urlRewrite action. When service is specified, expectedOutputUrl`s scheme is ignored. For rules with urlRedirect, the test passes only if expectedOutputUrl matches the URL in the load balancer's redirect response. If urlRedirect specifies https_redirect, the test passes only if the scheme in expectedOutputUrl is also set to HTTPS. If urlRedirect specifies strip_query, the test passes only if expectedOutputUrl does not contain any query parameters. expectedOutputUrl is optional when service is specified.
            "expectedRedirectResponseCode": 42, # For rules with urlRedirect, the test passes only if expectedRedirectResponseCode matches the HTTP status code in load balancer's redirect response. expectedRedirectResponseCode cannot be set when service is set.
            "expectedUrlRedirect": "A String", # The expected URL that should be redirected to for the host and path being tested. [Deprecated] This field is deprecated. Use expected_output_url instead.
            "headers": [ # HTTP headers for this request. If headers contains a host header, then host must also match the header value.
              { # HTTP headers used in UrlMapTests.
                "name": "A String", # Header name.
                "value": "A String", # Header value.
              },
            ],
            "host": "A String", # Host portion of the URL. If headers contains a host header, then host must also match the header value.
            "path": "A String", # Path portion of the URL.
            "service": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to. The service field cannot be set if expectedRedirectResponseCode is set.
          },
        ],
      },
    }

      x__xgafv: string, V1 error format.
        Allowed values
          1 - v1 error format
          2 - v2 error format

    Returns:
      An object of the form:

        {
      "result": { # Message representing the validation result for a UrlMap.
        "loadErrors": [
          "A String",
        ],
        "loadSucceeded": True or False, # Whether the given UrlMap can be successfully loaded. If false, 'loadErrors' indicates the reasons.
        "testFailures": [
          {
            "actualOutputUrl": "A String", # The actual output URL evaluated by a load balancer containing the scheme, host, path and query parameters.
            "actualRedirectResponseCode": 42, # Actual HTTP status code for rule with `urlRedirect` calculated by load balancer
            "actualService": "A String", # BackendService or BackendBucket returned by load balancer.
            "expectedOutputUrl": "A String", # The expected output URL evaluated by a load balancer containing the scheme, host, path and query parameters.
            "expectedRedirectResponseCode": 42, # Expected HTTP status code for rule with `urlRedirect` calculated by load balancer
            "expectedService": "A String", # Expected BackendService or BackendBucket resource the given URL should be mapped to.
            "headers": [ # HTTP headers of the request.
              { # HTTP headers used in UrlMapTests.
                "name": "A String", # Header name.
                "value": "A String", # Header value.
              },
            ],
            "host": "A String", # Host portion of the URL.
            "path": "A String", # Path portion including query parameters in the URL.
          },
        ],
        "testPassed": True or False, # If successfully loaded, this field indicates whether the test passed. If false, 'testFailures's indicate the reason of failure.
      },
    }