# IAM Service Account Credentials API . projects . serviceAccounts

## Instance Methods

Close httplib2 connections.

Generates an OAuth 2.0 access token for a service account.

Generates an OpenID Connect ID token for a service account.

Signs a blob using a service account's system-managed private key.

Signs a JWT using a service account's system-managed private key.

### Method Details

`close()`

    Close httplib2 connections.

`generateAccessToken(name, body=None, x__xgafv=None)`

    Generates an OAuth 2.0 access token for a service account.

    Args:
      name: string, Required. The resource name of the service account for which the credentials are requested, in the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid. (required)
      body: object, The request body.
        The object takes the form of:

    {
        "scope": [ # Required. Code to identify the scopes to be included in the OAuth 2.0 access token. See https://developers.google.com/identity/protocols/googlescopes for more information. At least one value required.
          "A String",
        ],
        "delegates": [ # The sequence of service accounts in a delegation chain. Each service account must be granted the `roles/iam.serviceAccountTokenCreator` role on its next service account in the chain. The last service account in the chain must be granted the `roles/iam.serviceAccountTokenCreator` role on the service account that is specified in the `name` field of the request. The delegates must have the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid.
          "A String",
        ],
        "lifetime": "A String", # The desired lifetime duration of the access token in seconds. By default, the maximum allowed value is 1 hour. To set a lifetime of up to 12 hours, you can add the service account as an allowed value in an Organization Policy that enforces the `constraints/iam.allowServiceAccountCredentialLifetimeExtension` constraint. See detailed instructions at https://cloud.google.com/iam/help/credentials/lifetime If a value is not specified, the token's lifetime will be set to a default value of 1 hour.
      }

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

    Returns:
      An object of the form:

        {
        "expireTime": "A String", # Token expiration time. The expiration time is always set.
        "accessToken": "A String", # The OAuth 2.0 access token.
      }

`generateIdToken(name, body=None, x__xgafv=None)`

    Generates an OpenID Connect ID token for a service account.

    Args:
      name: string, Required. The resource name of the service account for which the credentials are requested, in the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid. (required)
      body: object, The request body.
        The object takes the form of:

    {
        "audience": "A String", # Required. The audience for the token, such as the API or account that this token grants access to.
        "delegates": [ # The sequence of service accounts in a delegation chain. Each service account must be granted the `roles/iam.serviceAccountTokenCreator` role on its next service account in the chain. The last service account in the chain must be granted the `roles/iam.serviceAccountTokenCreator` role on the service account that is specified in the `name` field of the request. The delegates must have the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid.
          "A String",
        ],
        "includeEmail": True or False, # Include the service account email in the token. If set to `true`, the token will contain `email` and `email_verified` claims.
      }

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

    Returns:
      An object of the form:

        {
        "token": "A String", # The OpenId Connect ID token.
      }

`signBlob(name, body=None, x__xgafv=None)`

    Signs a blob using a service account's system-managed private key.

    Args:
      name: string, Required. The resource name of the service account for which the credentials are requested, in the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid. (required)
      body: object, The request body.
        The object takes the form of:

    {
        "delegates": [ # The sequence of service accounts in a delegation chain. Each service account must be granted the `roles/iam.serviceAccountTokenCreator` role on its next service account in the chain. The last service account in the chain must be granted the `roles/iam.serviceAccountTokenCreator` role on the service account that is specified in the `name` field of the request. The delegates must have the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid.
          "A String",
        ],
        "payload": "A String", # Required. The bytes to sign.
      }

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

    Returns:
      An object of the form:

        {
        "signedBlob": "A String", # The signature for the blob. Does not include the original blob. After the key pair referenced by the `key_id` response field expires, Google no longer exposes the public key that can be used to verify the blob. As a result, the receiver can no longer verify the signature.
        "keyId": "A String", # The ID of the key used to sign the blob. The key used for signing will remain valid for at least 12 hours after the blob is signed. To verify the signature, you can retrieve the public key in several formats from the following endpoints: - RSA public key wrapped in an X.509 v3 certificate: `https://www.googleapis.com/service_accounts/v1/metadata/x509/{ACCOUNT_EMAIL}` - Raw key in JSON format: `https://www.googleapis.com/service_accounts/v1/metadata/raw/{ACCOUNT_EMAIL}` - JSON Web Key (JWK): `https://www.googleapis.com/service_accounts/v1/metadata/jwk/{ACCOUNT_EMAIL}`
      }

`signJwt(name, body=None, x__xgafv=None)`

    Signs a JWT using a service account's system-managed private key.

    Args:
      name: string, Required. The resource name of the service account for which the credentials are requested, in the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid. (required)
      body: object, The request body.
        The object takes the form of:

    {
        "payload": "A String", # Required. The JWT payload to sign. Must be a serialized JSON object that contains a JWT Claims Set. For example: `{"sub": "user@example.com", "iat": 313435}` If the JWT Claims Set contains an expiration time (`exp`) claim, it must be an integer timestamp that is not in the past and no more than 12 hours in the future.
        "delegates": [ # The sequence of service accounts in a delegation chain. Each service account must be granted the `roles/iam.serviceAccountTokenCreator` role on its next service account in the chain. The last service account in the chain must be granted the `roles/iam.serviceAccountTokenCreator` role on the service account that is specified in the `name` field of the request. The delegates must have the following format: `projects/-/serviceAccounts/{ACCOUNT_EMAIL_OR_UNIQUEID}`. The `-` wildcard character is required; replacing it with a project ID is invalid.
          "A String",
        ],
      }

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

    Returns:
      An object of the form:

        {
        "keyId": "A String", # The ID of the key used to sign the JWT. The key used for signing will remain valid for at least 12 hours after the JWT is signed. To verify the signature, you can retrieve the public key in several formats from the following endpoints: - RSA public key wrapped in an X.509 v3 certificate: `https://www.googleapis.com/service_accounts/v1/metadata/x509/{ACCOUNT_EMAIL}` - Raw key in JSON format: `https://www.googleapis.com/service_accounts/v1/metadata/raw/{ACCOUNT_EMAIL}` - JSON Web Key (JWK): `https://www.googleapis.com/service_accounts/v1/metadata/jwk/{ACCOUNT_EMAIL}`
        "signedJwt": "A String", # The signed JWT. Contains the automatically generated header; the client-supplied payload; and the signature, which is generated using the key referenced by the `kid` field in the header. After the key pair referenced by the `key_id` response field expires, Google no longer exposes the public key that can be used to verify the JWT. As a result, the receiver can no longer verify the signature.
      }