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href="https://buymeacoffee.com/vbilopavu" aria-label="Buy Me a Coffee" target="_blank" rel="noopener" data-v-7bc22406 data-v-bd121fe5><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="currentColor"><path d="M20.216 6.415l-.132-.666c-.119-.598-.388-1.163-1.001-1.379-.197-.069-.42-.098-.57-.241-.152-.143-.196-.366-.231-.572-.065-.378-.125-.756-.192-1.133-.057-.325-.102-.69-.25-.987-.195-.4-.597-.634-.996-.788a5.723 5.723 0 00-.626-.194c-1-.263-2.05-.36-3.077-.416a25.834 25.834 0 00-3.7.062c-.915.083-1.88.184-2.75.5-.318.116-.646.256-.888.501-.297.302-.393.77-.177 1.146.154.267.415.456.692.58.36.162.737.284 1.123.366 1.075.238 2.189.331 3.287.37 1.218.05 2.437.01 3.65-.118.299-.033.598-.073.896-.119.352-.054.578-.513.474-.834-.124-.383-.457-.531-.834-.473-.466.074-.96.108-1.382.146-1.177.08-2.358.082-3.536.006a22.228 22.228 0 01-1.157-.107c-.086-.01-.18-.025-.258-.036-.243-.036-.484-.08-.724-.13-.111-.027-.111-.185 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data-v-6aa21345><div class="divider-line" data-v-6aa21345></div></div></div><!----></header><div class="VPLocalNav has-sidebar empty" data-v-5d98c3a5 data-v-a6f0e41e><div class="container" data-v-a6f0e41e><button class="menu" aria-expanded="false" aria-controls="VPSidebarNav" data-v-a6f0e41e><span class="vpi-align-left menu-icon" data-v-a6f0e41e></span><span class="menu-text" data-v-a6f0e41e>Menu</span></button><div class="VPLocalNavOutlineDropdown" style="--vp-vh:0px;" data-v-a6f0e41e data-v-8a42e2b4><button data-v-8a42e2b4>Return to top</button><!----></div></div></div><aside class="VPSidebar" data-v-5d98c3a5 data-v-319d5ca6><div class="curtain" data-v-319d5ca6></div><nav class="nav" id="VPSidebarNav" aria-labelledby="sidebar-aria-label" tabindex="-1" data-v-319d5ca6><span class="visually-hidden" id="sidebar-aria-label" data-v-319d5ca6> Sidebar Navigation </span><!--[--><!--]--><!--[--><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>HTTP & Routing</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Overview</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/http.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>HTTP</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/path.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>PATH</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/proxy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>PROXY</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/proxy-out.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>PROXY_OUT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/internal.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>INTERNAL</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/enabled.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>ENABLED</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/disabled.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>DISABLED</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/tags.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TAGS</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/openapi.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>OPENAPI</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/mcp.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>MCP</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/http-type.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>HTTP CUSTOM TYPES</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Authorization</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/authorize.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>AUTHORIZE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/allow-anonymous.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>ALLOW_ANONYMOUS</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/login.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>LOGIN</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/logout.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>LOGOUT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/basic-auth.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>BASIC_AUTH</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/basic-auth-realm.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>BASIC_AUTH_REALM</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/basic-auth-command.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>BASIC_AUTH_COMMAND</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Request Configuration</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/request-param-type.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>REQUEST_PARAM_TYPE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/request-headers-mode.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>REQUEST_HEADERS_MODE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/request-headers-parameter-name.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>REQUEST_HEADERS_PARAMETER_NAME</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/body-parameter-name.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>BODY_PARAMETER_NAME</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/query-string-null-handling.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>QUERY_STRING_NULL_HANDLING</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/validate.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>VALIDATE</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Response Configuration</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/response-headers.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Response Headers</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/response-null-handling.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RESPONSE_NULL_HANDLING</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/nested.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>NESTED</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/single.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SINGLE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/void.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>VOID</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/raw.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RAW</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/separator.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SEPARATOR</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/new-line.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>NEW_LINE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/column-names.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>COLUMN_NAMES</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Caching & Performance</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/cached.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>CACHED</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/cache-expires-in.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>CACHE_EXPIRES_IN</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/cache-profile.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>CACHE_PROFILE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/buffer-rows.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>BUFFER_ROWS</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/command-timeout.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>COMMAND_TIMEOUT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/retry-strategy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RETRY_STRATEGY</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/interval-format.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Interval Format</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 has-active" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Server-Sent Events</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/sse.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SSE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/sse-events-level.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SSE_EVENTS_LEVEL</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/sse-events-scope.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SSE_EVENTS_SCOPE</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Upload & Policies</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/upload.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>UPLOAD</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/error-code-policy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>ERROR_CODE_POLICY</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/rate-limiter-policy.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RATE_LIMITER_POLICY</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Output & Code Generation</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/table-format.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TABLE_FORMAT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/tsclient.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TSCLIENT</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Parameters</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/param.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>PARAM</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/parameter-hash.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>PARAMETER_HASH</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/encrypt-decrypt.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>ENCRYPT / DECRYPT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/parameter-substitution.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Parameter Value Substitution</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/resolved-parameters.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Resolved Parameters</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>SQL File Annotations</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/define-param.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>DEFINE_PARAM</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/result-name.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RESULT_NAME</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/skip.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SKIP</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/returns.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>RETURNS</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Test Files (--test)</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-setup.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @setup</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-teardown.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @teardown</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-connection.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @connection</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-tag.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @tag</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-claim.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @claim</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/test-response.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>TEST @response</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Context & Security</h2><!----></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/user-context.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>USER_CONTEXT</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/user-parameters.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>USER_PARAMETERS</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/connection.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>CONNECTION</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/security-sensitive.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SECURITY_SENSITIVE</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/annotations/custom-parameters.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Custom Parameters</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><div class="no-transition group" data-v-c40bc020><section class="VPSidebarItem level-0 collapsible" data-v-c40bc020 data-v-b3fd67f8><div class="item" role="button" tabindex="0" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><h2 class="text" data-v-b3fd67f8>Other Links</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-b3fd67f8><span class="vpi-chevron-right caret-icon" data-v-b3fd67f8></span></div></div><div class="items" data-v-b3fd67f8><!--[--><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/guide/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Guide</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/config/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Configuration Reference</p><!--]--></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-b3fd67f8 data-v-b3fd67f8><div class="item" data-v-b3fd67f8><div class="indicator" data-v-b3fd67f8></div><a class="VPLink link link" href="/guide/changelog/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Changelog</p><!--]--></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-5d98c3a5 data-v-1428d186><div class="VPDoc has-sidebar has-aside" data-v-1428d186 data-v-39a288b8><!--[--><!--]--><div 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data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-39a288b8><div class="content-container" data-v-39a288b8><!--[--><!--]--><main class="main" data-v-39a288b8><div style="position:relative;" class="vp-doc _annotations_sse" data-v-39a288b8><div><h1 id="sse" tabindex="-1">SSE <a class="header-anchor" href="#sse" aria-label="Permalink to "SSE""></a></h1><div class="info custom-block"><p class="custom-block-title">Also known as</p><p><code>sse_events_path</code>, <code>sse_path</code> (with or without <code>@</code> prefix)</p></div><p>Enable Server-Sent Events (SSE) streaming for the endpoint.</p><h2 id="how-events-flow" tabindex="-1">How events flow <a class="header-anchor" href="#how-events-flow" aria-label="Permalink to "How events flow""></a></h2><p><code>@sse</code> is the only SSE annotation that affects runtime behavior on its own, and it does <strong>two independent things</strong>:</p><ol><li><strong>Registers a connection URL</strong> at <code><endpoint-path>/<level></code> — clients open an <code>EventSource</code> against it to listen.</li><li><strong>Enables broadcasting from this procedure</strong> — <code>RAISE</code> statements inside this procedure's body forward their notices to the SSE broadcaster.</li></ol><p>A procedure without <code>@sse</code> can <code>RAISE</code> whatever it wants — those notices never reach SSE subscribers.</p><div class="language-mermaid vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">mermaid</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">flowchart LR</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> A["Procedure A<br/>(@sse)"] -->|RAISE| BC[("Global Broadcaster<br/>(process-wide)")]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> B["Procedure B<br/>(@sse)"] -->|RAISE| BC</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> X["Procedure X<br/>(no @sse)"] -. RAISE not broadcast .-> Drop((("✗")))</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> BC --> S1["Subscriber on<br/>/api/a/info"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> BC --> S2["Subscriber on<br/>/api/b/info"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> BC --> S3["Subscriber on<br/>/api/c/info"]</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><p>There is <strong>one process-wide broadcaster</strong>. Every connected <code>EventSource</code> reads from the same stream regardless of which <code>/info</code> URL it opened — the URL is just an entry point, not a topic name. Once a connection is established, the path it came in through is no longer used for routing.</p><p>Per-event filtering decides which subscribers actually receive each event:</p><ul><li>The originating endpoint's <a href="./sse-events-scope.html">scope</a> (<code>matching</code> / <code>authorize</code> / <code>all</code>).</li><li>An optional <code>RAISE ... USING HINT</code> override, parsed as <code><scope> [value1] [value2] ...</code>.</li><li>Optional execution-ID correlation via the <code>X-NpgsqlRest-ID</code> header.</li></ul><div class="warning custom-block"><p class="custom-block-title">Common pitfall</p><p><strong>The URL is not a topic.</strong> Subscribers on <code>/api/foo/info</code> and <code>/api/bar/info</code> do not see different streams — they see the same stream. If you want events from procedure B to reach clients connected to procedure A's URL, <strong>both procedures must have <code>@sse</code></strong>: A so clients can connect, B so its <code>RAISE</code>s broadcast. See the <a href="#cross-procedure-pattern">cross-procedure pattern</a> below.</p></div><h2 id="syntax" tabindex="-1">Syntax <a class="header-anchor" href="#syntax" aria-label="Permalink to "Syntax""></a></h2><details class="code-collapsible" open><summary>code</summary><div class="language- vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang"></span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span>@sse</span></span>
<span class="line"><span>@sse <path></span></span>
<span class="line"><span>@sse <path> on <level></span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div></details><p><strong>level</strong>: <code>info</code>, <code>notice</code>, <code>warning</code></p><h2 id="sse-path-construction" tabindex="-1">SSE Path Construction <a class="header-anchor" href="#sse-path-construction" aria-label="Permalink to "SSE Path Construction""></a></h2><p>The SSE endpoint path is constructed by <strong>appending</strong> the SSE path segment to the <strong>original endpoint path</strong>.</p><h3 id="when-path-is-omitted" tabindex="-1">When Path is Omitted <a class="header-anchor" href="#when-path-is-omitted" aria-label="Permalink to "When Path is Omitted""></a></h3><p>When the path is omitted (<code>@sse</code> without arguments), the SSE path segment defaults to the <strong>notice level name in lowercase</strong>:</p><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Level</th><th>SSE Path Segment</th></tr></thead><tbody><tr><td><code>INFO</code> (default)</td><td><code>info</code></td></tr><tr><td><code>NOTICE</code></td><td><code>notice</code></td></tr><tr><td><code>WARNING</code></td><td><code>warning</code></td></tr></tbody></table></div></div><p><strong>Example:</strong> If your endpoint path is <code>/api/my-function</code> and you use <code>@sse</code> without arguments, the SSE endpoint will be at <code>/api/my-function/info</code> (since <code>INFO</code> is the default level).</p><h3 id="when-custom-path-is-specified" tabindex="-1">When Custom Path is Specified <a class="header-anchor" href="#when-custom-path-is-specified" aria-label="Permalink to "When Custom Path is Specified""></a></h3><p>When you specify a custom path (<code>@sse my_events</code>), that path segment is appended to the endpoint path.</p><p><strong>Example:</strong> If your endpoint path is <code>/api/my-function</code> and you use <code>@sse my_events</code>, the SSE endpoint will be at <code>/api/my-function/my_events</code>.</p><h2 id="default-level" tabindex="-1">Default Level <a class="header-anchor" href="#default-level" aria-label="Permalink to "Default Level""></a></h2><p>The default notice level is <strong><code>INFO</code></strong>. This can be changed globally via the <a href="./../config/npgsqlrest.html#server-sent-events"><code>DefaultServerSentEventsEventNoticeLevel</code></a> configuration setting.</p><h2 id="level-filtering" tabindex="-1">Level Filtering <a class="header-anchor" href="#level-filtering" aria-label="Permalink to "Level Filtering""></a></h2><div class="warning custom-block"><p class="custom-block-title">Important</p><p>SSE events are sent <strong>only for the exact level specified</strong>, not for "this level and above".</p></div><p>When you set the level to <code>NOTICE</code>, only <code>RAISE NOTICE</code> statements will generate SSE events. <code>RAISE INFO</code> and <code>RAISE WARNING</code> statements will <strong>not</strong> generate SSE events for that endpoint.</p><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Configured Level</th><th><code>RAISE INFO</code></th><th><code>RAISE NOTICE</code></th><th><code>RAISE WARNING</code></th></tr></thead><tbody><tr><td><code>INFO</code></td><td>Sent</td><td>Not sent</td><td>Not sent</td></tr><tr><td><code>NOTICE</code></td><td>Not sent</td><td>Sent</td><td>Not sent</td></tr><tr><td><code>WARNING</code></td><td>Not sent</td><td>Not sent</td><td>Sent</td></tr></tbody></table></div></div><p>If you need events from multiple levels, create separate SSE endpoints for each level.</p><h2 id="examples" tabindex="-1">Examples <a class="header-anchor" href="#examples" aria-label="Permalink to "Examples""></a></h2><h3 id="basic-sse-endpoint-function" tabindex="-1">Basic SSE Endpoint (function) <a class="header-anchor" href="#basic-sse-endpoint-function" aria-label="Permalink to "Basic SSE Endpoint (function)""></a></h3><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">create</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> function</span><span style="--shiki-light:#1E66F5;--shiki-light-font-style:italic;--shiki-dark:#89B4FA;--shiki-dark-font-style:italic;"> long_running_process</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(_id </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">)</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">returns</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> void</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">language</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> plpgsql</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">as</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Starting process...'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- do work</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Progress: 50%%'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- more work</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Complete!'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function long_running_process(int) is</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse events'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br></div></div></details><p>If the endpoint is at <code>/api/long-running-process</code>, the SSE endpoint will be at <code>/api/long-running-process/events</code>. It receives <code>RAISE INFO</code> messages (the default level).</p><h3 id="basic-sse-endpoint-sql-file" tabindex="-1">Basic SSE Endpoint (SQL file) <a class="header-anchor" href="#basic-sse-endpoint-sql-file" aria-label="Permalink to "Basic SSE Endpoint (SQL file)""></a></h3><p>The same behavior, expressed as a SQL file:</p><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">/*</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@sse events</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@param $1 _id int</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@void</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">*/</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">do $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Starting process...'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- do work</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Progress: 50%%'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- more work</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'Complete!'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br></div></div></details><p>For files placed under the configured <code>Path</code> with the default <code>CommentsMode</code>, the leading comment block carries the same annotations as a function comment.</p><h3 id="with-notice-level" tabindex="-1">With Notice Level <a class="header-anchor" href="#with-notice-level" aria-label="Permalink to "With Notice Level""></a></h3><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function background_task() is</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse updates on notice'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div></details><p>If the endpoint is at <code>/api/background-task</code>, the SSE endpoint will be at <code>/api/background-task/updates</code>. It receives <strong>only</strong> <code>RAISE NOTICE</code> messages.</p><h3 id="warning-level-only" tabindex="-1">Warning Level Only <a class="header-anchor" href="#warning-level-only" aria-label="Permalink to "Warning Level Only""></a></h3><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function critical_job() is</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse alerts on warning'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div></details><p>If the endpoint is at <code>/api/critical-job</code>, the SSE endpoint will be at <code>/api/critical-job/alerts</code>. It receives <strong>only</strong> <code>RAISE WARNING</code> messages.</p><h3 id="using-default-path-level-name" tabindex="-1">Using Default Path (Level Name) <a class="header-anchor" href="#using-default-path-level-name" aria-label="Permalink to "Using Default Path (Level Name)""></a></h3><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function my_process() is</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br></div></div></details><p>If the endpoint is at <code>/api/my-process</code>, the SSE endpoint will be at <code>/api/my-process/info</code> (default path segment from the default <code>INFO</code> level).</p><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function my_process() is</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse_events_level notice</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br></div></div></details><p>If the endpoint is at <code>/api/my-process</code>, the SSE endpoint will be at <code>/api/my-process/notice</code> (path segment derived from the configured <code>NOTICE</code> level).</p><h2 id="cross-procedure-pattern" tabindex="-1">Cross-procedure pattern <a class="header-anchor" href="#cross-procedure-pattern" aria-label="Permalink to "Cross-procedure pattern""></a></h2><p>The single-procedure case (one procedure both broadcasts and exposes the URL) is straightforward. But sometimes the procedure that <strong>triggers</strong> an event isn't the one that should be the <strong>client subscription URL</strong>. Common reasons:</p><ul><li>The trigger has restrictive authorization (e.g. <code>manager</code> only) but listeners are regular users.</li><li>Multiple triggers feed one logical stream — having a stable subscribe URL keeps the client code simple as new triggers are added.</li><li>The semantic name of the trigger (<code>update_user_roles</code>) reads wrong as a client-facing URL.</li></ul><p>The pattern: split publish from subscribe across two procedures, each with <code>@sse</code>. Annotate the trigger so its <code>RAISE</code>s broadcast; annotate a no-op procedure so its URL is the stable client entry point. Use <code>RAISE ... USING HINT</code> inside the trigger to scope events per user.</p><div class="language-mermaid vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">mermaid</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">flowchart LR</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> Client["Browser<br/>EventSource"] -->|opens connection| SubURL["/api/user-events-subscribe/info"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> SubURL -.->|registers via @sse| SubProc["user_events_subscribe<br/>(no-op, @sse)"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> Manager["Manager<br/>browser"] -->|POST| EmitURL["/api/update-user-roles"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> EmitURL --> EmitProc["update_user_roles<br/>(@sse)"]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> EmitProc -->|RAISE INFO<br/>using hint| BC[("Global<br/>Broadcaster")]</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> BC -->|filtered by hint| Client</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div><h3 id="function-form" tabindex="-1">Function form <a class="header-anchor" href="#function-form" aria-label="Permalink to "Function form""></a></h3><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Subscribe URL: a no-op procedure whose @sse only registers the URL.</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Annotated 'authorize' so any authenticated user can connect.</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">create</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> procedure</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> user_events_subscribe</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">()</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">language</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> plpgsql </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">as</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> $$ </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> perform </span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;">1</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">; </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">; $$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">comment </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">on</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> procedure</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> user_events_subscribe</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">()</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> is</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> '</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@authorize</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse_scope authorize'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Emitter: the procedure that actually causes events. @sse is required</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- here too — without it, the RAISE never reaches the broadcaster.</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">create</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> procedure</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> update_user_roles(_target_user_id </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _roles </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">[])</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">language</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> plpgsql </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">as</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- ... do the role update ...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'roles updated'</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> using</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> hint </span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;">=</span><span style="--shiki-light:#1E66F5;--shiki-light-font-style:italic;--shiki-dark:#89B4FA;--shiki-dark-font-style:italic;"> format</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'authorize %s'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _target_user_id);</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">comment </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">on</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> procedure</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> update_user_roles(</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">[]) </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">is</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> '</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@authorize manager</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@sse_scope authorize'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br><span class="line-number">21</span><br><span class="line-number">22</span><br><span class="line-number">23</span><br><span class="line-number">24</span><br><span class="line-number">25</span><br><span class="line-number">26</span><br><span class="line-number">27</span><br></div></div></details><h3 id="sql-file-form" tabindex="-1">SQL file form <a class="header-anchor" href="#sql-file-form" aria-label="Permalink to "SQL file form""></a></h3><p>The same shape, expressed as two files. <code>@sse</code> and <code>@sse_scope</code> work identically; the no-op subscribe file is just a body that does nothing.</p><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- file: sql/user-events-subscribe.sql</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">/*</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@authorize</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@sse</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@sse_scope authorize</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@void</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">*/</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">select</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> 1</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br></div></div></details><details class="code-collapsible" open><summary>sql</summary><div class="language-sql vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">sql</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- file: sql/update-user-roles.sql</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">/*</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">HTTP POST</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@authorize manager</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@sse</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@sse_scope authorize</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@param $1 _target_user_id int</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@param $2 _roles text[]</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">@void</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">*/</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">do $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">declare</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _target_user_id </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;"> =</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> $</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;">1</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _roles </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">[] </span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;">=</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> $</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;">2</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> -- ... do the role update ...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> raise info </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'roles updated'</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> using</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> hint </span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;">=</span><span style="--shiki-light:#1E66F5;--shiki-light-font-style:italic;--shiki-dark:#89B4FA;--shiki-dark-font-style:italic;"> format</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'authorize %s'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _target_user_id);</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br><span class="line-number">6</span><br><span class="line-number">7</span><br><span class="line-number">8</span><br><span class="line-number">9</span><br><span class="line-number">10</span><br><span class="line-number">11</span><br><span class="line-number">12</span><br><span class="line-number">13</span><br><span class="line-number">14</span><br><span class="line-number">15</span><br><span class="line-number">16</span><br><span class="line-number">17</span><br><span class="line-number">18</span><br><span class="line-number">19</span><br><span class="line-number">20</span><br></div></div></details><h3 id="what-the-client-does" tabindex="-1">What the client does <a class="header-anchor" href="#what-the-client-does" aria-label="Permalink to "What the client does""></a></h3><details class="code-collapsible" open><summary>ts</summary><div class="language-ts vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">ts</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">const</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> eventSource </span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;">=</span><span style="--shiki-light:#8839EF;--shiki-light-font-weight:bold;--shiki-dark:#CBA6F7;--shiki-dark-font-weight:bold;"> new</span><span style="--shiki-light:#1E66F5;--shiki-light-font-style:italic;--shiki-dark:#89B4FA;--shiki-dark-font-style:italic;"> EventSource</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'/api/user-events-subscribe/info'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">)</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">eventSource</span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;">.</span><span style="--shiki-light:#1E66F5;--shiki-light-font-style:italic;--shiki-dark:#89B4FA;--shiki-dark-font-style:italic;">onmessage</span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;"> =</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> ()</span><span style="--shiki-light:#179299;--shiki-dark:#94E2D5;"> =></span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;"> // ... handle the event ...</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">};</span></span></code></pre><div class="line-numbers-wrapper" aria-hidden="true"><span class="line-number">1</span><br><span class="line-number">2</span><br><span class="line-number">3</span><br><span class="line-number">4</span><br><span class="line-number">5</span><br></div></div></details><p>Clients open <code>EventSource</code> once against <code>/api/user-events-subscribe/info</code>. When <code>update_user_roles</code> runs, its <code>RAISE</code> flows through the global broadcaster, every subscriber receives it, and the per-event hint (<code>authorize <target_user_id></code>) ensures only the affected user's connection writes the data line. The fact that the event came from a different URL than the one the client subscribed to is invisible to both sides — they share the broadcaster.</p><p>The <code>@sse</code> on <code>update_user_roles</code> is what enables broadcasting; the <code>@sse</code> on <code>user_events_subscribe</code> is what gives clients a stable, semantically meaningful URL to open. They serve different purposes despite using the same annotation.</p><h2 id="behavior" tabindex="-1">Behavior <a class="header-anchor" href="#behavior" aria-label="Permalink to "Behavior""></a></h2><p><code>@sse</code> affects the procedure on two sides — its execution and its URL. Each side is independent, even though one annotation enables both.</p><h3 id="on-the-publisher-side" tabindex="-1">On the publisher side <a class="header-anchor" href="#on-the-publisher-side" aria-label="Permalink to "On the publisher side""></a></h3><p>What <code>@sse</code> does to the procedure's execution:</p><ul><li>Subscribes to PostgreSQL notices on the connection during the procedure's execution.</li><li>Filters by the configured level (only <code>RAISE</code> statements matching that level are forwarded).</li><li>Pushes matching notices to the global broadcaster, tagged with the originating endpoint's metadata and the optional <code>X-NpgsqlRest-ID</code> header for execution-ID correlation.</li><li>Procedures without <code>@sse</code> skip this entire path — their notices are not visible to any subscriber.</li></ul><h3 id="on-the-subscriber-side" tabindex="-1">On the subscriber side <a class="header-anchor" href="#on-the-subscriber-side" aria-label="Permalink to "On the subscriber side""></a></h3><p>What <code>@sse</code> does to the procedure's URL:</p><ul><li>Registers <code><endpoint-path>/<level></code> as an SSE connection URL (or the custom path you specified).</li><li>Connections to this URL are pure listeners — they never invoke the procedure body.</li><li>Each connection iterates the broadcaster's stream and decides per-event whether to write to the response, based on the originating endpoint's scope and any <code>HINT</code> override.</li></ul><p>Because the URL is a connection point and not a topic, subscribers on different <code>@sse</code> URLs see the same stream. Use the URL primarily to give clients a stable, meaningful connection address and to scope which roles can subscribe (via the procedure's regular authorization).</p><h2 id="related" tabindex="-1">Related <a class="header-anchor" href="#related" aria-label="Permalink to "Related""></a></h2><ul><li><a href="./../guide/sse.html">Server-Sent Events Guide</a> — the full walkthrough</li><li><a href="./../config/npgsqlrest.html">NpgsqlRest Options configuration</a> - Configure SSE options</li><li><a href="./../guide/annotations.html">Comment Annotations Guide</a> - How annotations work</li><li><a href="./../guide/configuration.html">Configuration Guide</a> - How configuration works</li></ul><h2 id="related-annotations" tabindex="-1">Related Annotations <a class="header-anchor" href="#related-annotations" aria-label="Permalink to "Related Annotations""></a></h2><ul><li><a href="./sse-events-level.html">SSE_EVENTS_LEVEL</a> - Set notice level</li><li><a 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