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<title>Proxy Options | NpgsqlRest</title>
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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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2.616-2.657.34-3.332.683-6.663 1.024-9.995l.215-2.087a.484.484 0 01.39-.426c.402-.078.787-.212 1.074-.518.455-.488.546-1.124.385-1.766zm-1.478.772c-.145.137-.363.201-.578.233-2.416.359-4.866.54-7.308.46-1.748-.06-3.477-.254-5.207-.498-.17-.024-.353-.055-.47-.18-.22-.236-.111-.71-.054-.995.052-.26.152-.609.463-.646.484-.057 1.046.148 1.526.22.577.088 1.156.159 1.737.212 2.48.226 5.002.19 7.472-.14.45-.06.899-.13 1.345-.21.399-.072.84-.206 1.08.206.166.281.188.657.162.974a.544.544 0 01-.169.364z"/></svg></a><!--]--></div></div></div><!--]--><!--]--></div></div></div><!--[--><!--]--><button type="button" class="VPNavBarHamburger hamburger" aria-label="mobile navigation" aria-expanded="false" aria-controls="VPNavScreen" data-v-6aa21345 data-v-e5dd9c1c><span class="container" data-v-e5dd9c1c><span class="top" data-v-e5dd9c1c></span><span class="middle" data-v-e5dd9c1c></span><span class="bottom" data-v-e5dd9c1c></span></span></button></div></div></div></div><div class="divider" 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>Core Settings</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="/config/" 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="/config/latest.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Latest Default Configuration</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/top-level.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Top-Level Settings</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/config-section.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Config Section</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/npgsqlrest.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>NpgsqlRest Options</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/routine-options.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Routine Options</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/connection.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Connection Settings</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/server.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Server & SSL</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>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="/config/auth.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Authentication</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/external-auth.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>External OAuth</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/passkey-auth.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Passkey Authentication</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/authentication-options.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Authentication Options</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/claims-mapping.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Claims Mapping</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/basic-auth-config.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Basic Auth Config</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/validation.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Validation</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/antiforgery.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Antiforgery</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-protection.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Data Protection</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/cors.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>CORS</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/security-headers.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Security 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="/config/forwarded-headers.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Forwarded Headers</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>Features</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="/config/sql-file-source.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>SQL File Source</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/test-runner.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Test Runner</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/watch.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Watch 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="/config/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="/config/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="/config/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="/config/http-files.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>HTTP Files</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/codegen.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Code Generation</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/uploads.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Upload Options</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/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="/config/http-client.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>HTTP Client</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>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="/config/response-compression.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Response Compression</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/cache-options.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Cache Options</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/rate-limiter.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Rate Limiter</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/command-retry.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Command Retry</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/thread-pool.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Thread Pool</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>Infrastructure</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="/config/logging.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Logging</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/static-files.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Static Files</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/error-handling.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Error 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="/config/health-checks.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Health Checks</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/stats.html" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Stats</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="/annotations/" data-v-b3fd67f8><!--[--><p class="text" data-v-b3fd67f8>Annotations Reference</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 class="container" data-v-39a288b8><div class="aside" data-v-39a288b8><div class="aside-curtain" data-v-39a288b8></div><div class="aside-container" data-v-39a288b8><div class="aside-content" data-v-39a288b8><div class="VPDocAside" data-v-39a288b8 data-v-3f215769><!--[--><!--]--><!--[--><!--]--><nav aria-labelledby="doc-outline-aria-label" class="VPDocAsideOutline" data-v-3f215769 data-v-a5bbad30><div class="content" data-v-a5bbad30><div class="outline-marker" data-v-a5bbad30></div><div aria-level="2" class="outline-title" id="doc-outline-aria-label" role="heading" data-v-a5bbad30>On this page</div><ul class="VPDocOutlineItem root" data-v-a5bbad30 data-v-b933a997><!--[--><!--]--></ul></div></nav><!--[--><!--[--><!--[--><!--[--><div class="comments-outline-link" data-v-6357a5e2><a href="#comments" class="outline-link" data-v-6357a5e2>Comments</a></div><!--]--><!--]--><!--]--><!--]--><div class="spacer" 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 _config_proxy" data-v-39a288b8><div><h1 id="proxy-options" tabindex="-1">Proxy Options <a class="header-anchor" href="#proxy-options" aria-label="Permalink to "Proxy Options""></a></h1><p>Reverse proxy configuration for NpgsqlRest endpoints. When an endpoint is marked as a proxy, incoming HTTP requests are forwarded to an upstream service, and the response can either be returned directly to the client (passthrough mode) or processed by the PostgreSQL function (transform mode).</p><h2 id="overview" tabindex="-1">Overview <a class="header-anchor" href="#overview" aria-label="Permalink to "Overview""></a></h2><details class="code-collapsible" open><summary>json</summary><div class="language-json vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">json</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">{</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">NpgsqlRest</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ProxyOptions</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">Enabled</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> false</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">Host</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> null</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">DefaultTimeout</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "00:00:30"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> true</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ExcludeHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> [</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">"Host"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Content-Length"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Transfer-Encoding"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">],</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardResponseHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> true</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ExcludeResponseHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> [</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">"Transfer-Encoding"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Content-Length"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">],</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseStatusCodeParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_status_code"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseBodyParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_body"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseHeadersParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_headers"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseContentTypeParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_content_type"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseSuccessParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_success"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ResponseErrorMessageParameter</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "_proxy_error_message"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardUploadContent</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> false</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">MaxForwardedQueryParamLength</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> 2048</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</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><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></div></div></details><h2 id="settings-reference" tabindex="-1">Settings Reference <a class="header-anchor" href="#settings-reference" aria-label="Permalink to "Settings Reference""></a></h2><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Setting</th><th>Type</th><th>Default</th><th>Description</th></tr></thead><tbody><tr><td><code>Enabled</code></td><td>bool</td><td><code>false</code></td><td>Enable proxy functionality for endpoints with proxy annotations.</td></tr><tr><td><code>Host</code></td><td>string</td><td><code>null</code></td><td>Default upstream host URL. Used when the annotation has no URL. Ignored when the annotation specifies its own URL (absolute or relative). See <a href="./../annotations/proxy.html#url-resolution">URL Resolution</a>.</td></tr><tr><td><code>DefaultTimeout</code></td><td>string</td><td><code>"00:00:30"</code></td><td>Default timeout for proxy requests. Format: <code>"HH:MM:SS"</code> or <a href="./../annotations/interval-format.html">interval format</a> (e.g., <code>"30s"</code>).</td></tr><tr><td><code>ForwardHeaders</code></td><td>bool</td><td><code>true</code></td><td>Forward request headers to upstream service.</td></tr><tr><td><code>ExcludeHeaders</code></td><td>array</td><td><code>["Host", "Content-Length", "Transfer-Encoding"]</code></td><td>Request headers to exclude from forwarding.</td></tr><tr><td><code>ForwardResponseHeaders</code></td><td>bool</td><td><code>true</code></td><td>Forward response headers from upstream to client.</td></tr><tr><td><code>ExcludeResponseHeaders</code></td><td>array</td><td><code>["Transfer-Encoding", "Content-Length"]</code></td><td>Response headers to exclude from forwarding.</td></tr><tr><td><code>ForwardUploadContent</code></td><td>bool</td><td><code>false</code></td><td>Forward raw multipart/form-data to upstream instead of processing locally.</td></tr><tr><td><code>MaxForwardedQueryParamLength</code></td><td>int</td><td><code>2048</code></td><td>Maximum length (characters) of a single automatic parameter value appended to the proxy upstream <strong>query string</strong>. Server-filled values longer than this are skipped with a warning instead of producing an unusable request line (HTTP 414/431). <code>0</code> or less disables the guard. See <a href="#query-string-length-guard">Query-string length guard</a>.</td></tr></tbody></table></div></div><h2 id="response-parameter-names" tabindex="-1">Response Parameter Names <a class="header-anchor" href="#response-parameter-names" aria-label="Permalink to "Response Parameter Names""></a></h2><p>These settings configure which parameter names receive proxy response data:</p><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Setting</th><th>Type</th><th>Default</th><th>Description</th></tr></thead><tbody><tr><td><code>ResponseStatusCodeParameter</code></td><td>string</td><td><code>"_proxy_status_code"</code></td><td>Parameter name for HTTP status code from upstream.</td></tr><tr><td><code>ResponseBodyParameter</code></td><td>string</td><td><code>"_proxy_body"</code></td><td>Parameter name for response body content.</td></tr><tr><td><code>ResponseHeadersParameter</code></td><td>string</td><td><code>"_proxy_headers"</code></td><td>Parameter name for response headers as JSON.</td></tr><tr><td><code>ResponseContentTypeParameter</code></td><td>string</td><td><code>"_proxy_content_type"</code></td><td>Parameter name for Content-Type header value.</td></tr><tr><td><code>ResponseSuccessParameter</code></td><td>string</td><td><code>"_proxy_success"</code></td><td>Parameter name for success indicator (true for 2xx status).</td></tr><tr><td><code>ResponseErrorMessageParameter</code></td><td>string</td><td><code>"_proxy_error_message"</code></td><td>Parameter name for error message if request failed.</td></tr></tbody></table></div></div><h2 id="proxy-modes" tabindex="-1">Proxy Modes <a class="header-anchor" href="#proxy-modes" aria-label="Permalink to "Proxy Modes""></a></h2><h3 id="passthrough-mode" tabindex="-1">Passthrough Mode <a class="header-anchor" href="#passthrough-mode" aria-label="Permalink to "Passthrough Mode""></a></h3><p>When the PostgreSQL function has no proxy response parameters, the upstream response is returned directly to the client without opening a database connection:</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;">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;"> get_external_data</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">()</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:#8839EF;--shiki-dark:#CBA6F7;"> sql</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> atomic</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">select</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>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function get_external_data() is </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy https://api.example.com/data'</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><p><strong>Equivalent as a SQL file endpoint</strong> (<code>sql/get-external-data.sql</code>):</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;">-- 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;">-- @proxy https://api.example.com/data</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">select</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><h3 id="transform-mode" tabindex="-1">Transform Mode <a class="header-anchor" href="#transform-mode" aria-label="Permalink to "Transform Mode""></a></h3><p>When the PostgreSQL function has parameters matching the configured response parameter names, the proxy response is passed to the function for processing:</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;">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;"> get_and_transform</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_status_code </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_body </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_headers </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">json</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_content_type </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_success </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">boolean</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_error_message </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span></span>
<span class="line"><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:#8839EF;--shiki-dark:#CBA6F7;"> json</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;"> $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> if</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> not</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_success </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">then</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> return</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> json_build_object(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'error'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _proxy_error_message);</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> end</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> if</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> return</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> json_build_object(</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> 'status'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _proxy_status_code,</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> 'data'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _proxy_body::</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">json</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> );</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function get_and_transform(int, text, json, text, boolean, text) is </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy https://api.example.com/data'</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></div></div></details><h2 id="response-parameters" tabindex="-1">Response Parameters <a class="header-anchor" href="#response-parameters" aria-label="Permalink to "Response Parameters""></a></h2><p>When the PostgreSQL function has parameters matching these names (the defaults below, or whatever you set in the <a href="#response-parameter-names">Response Parameter Names</a> settings above), the upstream response data is bound to them after the request returns:</p><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Parameter Name</th><th>Type</th><th>Description</th></tr></thead><tbody><tr><td><code>_proxy_status_code</code></td><td><code>int</code> or <code>text</code></td><td>HTTP status code from upstream (e.g., 200, 404). Bound as text if the parameter is declared <code>text</code>/<code>varchar</code>, otherwise as an integer.</td></tr><tr><td><code>_proxy_body</code></td><td><code>text</code></td><td>Response body content.</td></tr><tr><td><code>_proxy_headers</code></td><td><code>json</code></td><td>Response headers as JSON object.</td></tr><tr><td><code>_proxy_content_type</code></td><td><code>text</code></td><td>Content-Type header value.</td></tr><tr><td><code>_proxy_success</code></td><td><code>boolean</code></td><td>True for 2xx status codes.</td></tr><tr><td><code>_proxy_error_message</code></td><td><code>text</code></td><td>Error message if request failed.</td></tr></tbody></table></div></div><p>Parameters are matched <strong>by name</strong> (case-insensitive), not by position, and only the ones your function actually needs have to be declared. See <a href="./../annotations/proxy.html#how-parameters-are-mapped">How parameters are mapped</a> in the annotation reference for the full rules.</p><h2 id="automatic-parameter-forwarding" tabindex="-1">Automatic Parameter Forwarding <a class="header-anchor" href="#automatic-parameter-forwarding" aria-label="Permalink to "Automatic Parameter Forwarding""></a></h2><p>Parameters that NpgsqlRest fills <strong>server-side</strong> (not supplied by the client) are forwarded to the upstream so the proxy receives the same parameter set the function would. All automatic sources are treated <strong>consistently</strong>:</p><ul><li><strong>user claims</strong> (claim-mapped parameters, <code>user_params</code>),</li><li>the <strong>IP address</strong> parameter,</li><li><strong>HTTP Custom Type</strong> fields (the auto-filled <code>responseBody</code> / <code>responseStatusCode</code> / … on a routine with an <a href="./../annotations/http-type.html">HTTP Custom Type</a> parameter),</li><li><strong>resolved-parameter expressions</strong> (values looked up server-side via SQL).</li></ul><h3 id="placement-follows-the-endpoint-shape-not-the-http-verb" tabindex="-1">Placement follows the endpoint shape, not the HTTP verb <a class="header-anchor" href="#placement-follows-the-endpoint-shape-not-the-http-verb" aria-label="Permalink to "Placement follows the endpoint shape, not the HTTP verb""></a></h3><p>Where each automatic parameter is placed mirrors how the endpoint itself receives parameters — it is decided by <a href="./../annotations/request-param-type.html"><code>RequestParamType</code></a>, <strong>not</strong> by the HTTP method (a <code>POST</code> endpoint can use <code>param_type query</code>):</p><ul><li>The parameter designated as the body parameter (<code>@body_parameter_name</code>) carries the <strong>raw request body</strong>.</li><li>Otherwise: <code>QueryString</code> → appended to the proxy <strong>query string</strong>; <code>BodyJson</code> → merged into the proxy <strong>JSON body</strong> (typed: numbers, booleans, embedded JSON, or strings) when the proxy method can carry a body.</li></ul><p>Forwarding is <strong>additive</strong> — the verbatim incoming request is still forwarded; the automatic parameters are added on top. Body merging applies only when the forwarded request carries a JSON content type (multipart / non-JSON is forwarded verbatim).</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;">-- GET endpoint (QueryString): the auto-filled values are appended to the proxy query string.</span></span>
<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;"> proxy_with_claims</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _user_id </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, </span><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Forwarded as ?userId=...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _user_name </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, </span><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Forwarded as ?userName=...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _ip_address </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, </span><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Forwarded as ?ipAddress=...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _user_claims </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">json</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, </span><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- Forwarded as ?userClaims=...</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_status_code </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_body </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span></span>
<span class="line"><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:#8839EF;--shiki-dark:#CBA6F7;"> json</span><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;"> $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> return</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> json_build_object(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'user'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _user_id, </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'data'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _proxy_body);</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function proxy_with_claims(text, text, text, json, int, text) is </span><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;">@user_params</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy https://api.example.com/data'</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></div></div></details><div class="tip custom-block"><p class="custom-block-title">Behavior note (3.18.1)</p><p>Before 3.18.1, user-claim and IP parameters were always forwarded on the query string, and HTTP Custom Type fields / resolved parameters were not forwarded at all. They are now unified under the rule above. For <code>QueryString</code> endpoints (the default for GET) the result is unchanged — values stay on the query string; for <code>BodyJson</code> endpoints the automatic parameters are now merged into the JSON body instead.</p></div><h3 id="query-string-length-guard" tabindex="-1">Query-string length guard <a class="header-anchor" href="#query-string-length-guard" aria-label="Permalink to "Query-string length guard""></a></h3><p>When an automatic parameter is placed on the proxy <strong>query string</strong> (a <code>QueryString</code> endpoint — see above), an oversized value would be percent-encoded into the request line and produce a URL the upstream rejects (HTTP 414 <em>URI Too Long</em> / 431 <em>Request Header Fields Too Large</em>) or that resets the connection. A common trigger is an <a href="./../annotations/http-type.html">HTTP Custom Type</a> field whose <code>body</code> holds a large payload (e.g. a scraped HTML page).</p><p><code>MaxForwardedQueryParamLength</code> (default <code>2048</code>) caps this. A single server-filled value longer than the limit is <strong>skipped with a warning</strong> rather than appended to the query string — the rest of the request still forwards normally. Set it to <code>0</code> (or less) to disable the guard entirely.</p><p>To forward a large value to the upstream, move it into the request <strong>body</strong> instead of the query string:</p><ul><li>use a body-carrying proxy method (<code>POST</code> / <code>PUT</code> / <code>PATCH</code>) so it travels in the request body, and</li><li>designate the field with <a href="./../annotations/body-parameter-name.html"><code>@body_parameter_name</code></a> to carry the raw body, while the remaining small fields stay on the query string under the length guard.</li></ul><div class="tip custom-block"><p class="custom-block-title">New in 3.18.2</p><p><code>MaxForwardedQueryParamLength</code> was added in 3.18.2. Previously a large auto-filled value (such as an HTTP Custom Type <code>body</code> field) was percent-encoded into the upstream query string unconditionally.</p></div><h3 id="http-headers-user-context" tabindex="-1">HTTP Headers (user_context) <a class="header-anchor" href="#http-headers-user-context" aria-label="Permalink to "HTTP Headers (user_context)""></a></h3><p>When <code>user_context</code> is enabled, user context values are forwarded as HTTP headers to the upstream proxy:</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;">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;"> proxy_with_context</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">(</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_status_code </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">int</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">,</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> _proxy_body </span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">text</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> default</span><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> null</span></span>
<span class="line"><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:#8839EF;--shiki-dark:#CBA6F7;"> json</span><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;"> $$</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">begin</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;"> return</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;"> json_build_object(</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'status'</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">, _proxy_status_code);</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">end</span><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">;</span></span>
<span class="line"><span style="--shiki-light:#4C4F69;--shiki-dark:#CDD6F4;">$$;</span></span>
<span class="line"></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function proxy_with_context(int, text) is </span><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;">@user_context</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy https://api.example.com/data'</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;">-- Headers forwarded: request.user_id, request.user_name, request.user_roles</span></span>
<span class="line"><span style="--shiki-light:#9CA0B0;--shiki-light-font-style:italic;--shiki-dark:#6C7086;--shiki-dark-font-style:italic;">-- (configurable via ContextKeyClaimsMapping)</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><h2 id="upload-forwarding" tabindex="-1">Upload Forwarding <a class="header-anchor" href="#upload-forwarding" aria-label="Permalink to "Upload Forwarding""></a></h2><p>For upload endpoints with proxy, configure whether to process uploads locally or forward raw multipart data:</p><details class="code-collapsible" open><summary>json</summary><div class="language-json vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">json</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">{</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">NpgsqlRest</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ProxyOptions</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardUploadContent</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> false</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</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><span class="line-number">6</span><br><span class="line-number">7</span><br></div></div></details><div class="table-container"><div class="table-wrapper"><table tabindex="0"><thead><tr><th>Value</th><th>Description</th></tr></thead><tbody><tr><td><code>false</code> (default)</td><td>Uploads are processed locally; proxy receives parsed data.</td></tr><tr><td><code>true</code></td><td>Raw multipart/form-data is streamed directly to upstream (memory-efficient for large files).</td></tr></tbody></table></div></div><h2 id="key-features" tabindex="-1">Key Features <a class="header-anchor" href="#key-features" aria-label="Permalink to "Key Features""></a></h2><ul><li><strong>Passthrough mode</strong>: No database connection opened when function has no proxy response parameters</li><li><strong>Transform mode</strong>: Process upstream response in PostgreSQL before returning to client</li><li><strong>User claims forwarding</strong>: Authenticated user claims passed as query parameters to upstream</li><li><strong>User context headers</strong>: User context values passed as HTTP headers to upstream</li><li><strong>Streaming uploads</strong>: Memory-efficient streaming for large file uploads when <code>ForwardUploadContent</code> is enabled</li><li><strong>Timeout handling</strong>: Configurable per-request timeout with proper 504 Gateway Timeout responses</li><li><strong>Header forwarding</strong>: Configurable request/response header forwarding with exclusion lists</li></ul><h2 id="self-referencing-calls-relative-paths" tabindex="-1">Self-Referencing Calls (Relative Paths) <a class="header-anchor" href="#self-referencing-calls-relative-paths" aria-label="Permalink to "Self-Referencing Calls (Relative Paths)""></a></h2><p>When a proxy annotation includes a <strong>relative path</strong> (starting with <code>/</code>), the request is routed to another endpoint on the same NpgsqlRest server:</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_aggregator() is </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy POST /api/data-source'</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></div></div></details><p>Self-referencing calls bypass the HTTP stack entirely — the endpoint handler is invoked directly in-process via <code>InternalRequestHandler</code>, with zero network overhead.</p><div class="info custom-block"><p class="custom-block-title">URL Resolution</p><p>A relative path in the annotation <strong>always</strong> creates a self-referencing internal call. The global <code>ProxyOptions.Host</code> setting is <strong>not</strong> prepended to relative paths — it is only used when the annotation has no URL at all. See <a href="./../annotations/proxy.html#url-resolution">URL Resolution</a> for the full priority table.</p></div><h3 id="internal-only-endpoints" tabindex="-1">Internal-Only Endpoints <a class="header-anchor" href="#internal-only-endpoints" aria-label="Permalink to "Internal-Only Endpoints""></a></h3><p>Combine with the <a href="./../annotations/internal.html"><code>@internal</code> annotation</a> to create endpoints accessible only via proxy but not exposed as public HTTP routes:</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;">-- Internal helper: not accessible from outside</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function get_cached_rates() is </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@internal'</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;">-- Public endpoint that proxies the internal one</span></span>
<span class="line"><span style="--shiki-light:#8839EF;--shiki-dark:#CBA6F7;">comment on function convert_currency(numeric, text, text) is </span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">'HTTP GET</span></span>
<span class="line"><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">@proxy GET /api/get-cached-rates'</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></div></div></details><p>Direct HTTP call to <code>/api/get-cached-rates</code> returns 404, but the proxy call works.</p><h2 id="complete-example" tabindex="-1">Complete Example <a class="header-anchor" href="#complete-example" aria-label="Permalink to "Complete Example""></a></h2><p>Production configuration with proxy enabled:</p><details class="code-collapsible" open><summary>json</summary><div class="language-json vp-adaptive-theme line-numbers-mode"><button title="Copy Code" class="copy"></button><span class="lang">json</span><pre class="shiki shiki-themes catppuccin-latte catppuccin-mocha vp-code" tabindex="0"><code><span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">{</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">NpgsqlRest</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ProxyOptions</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> {</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">Enabled</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> true</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">Host</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "https://api.internal.example.com"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">DefaultTimeout</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "00:00:30"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> true</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ExcludeHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> [</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">"Host"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Content-Length"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Transfer-Encoding"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Authorization"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">],</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardResponseHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> true</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ExcludeResponseHeaders</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> [</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;">"Transfer-Encoding"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span><span style="--shiki-light:#40A02B;--shiki-dark:#A6E3A1;"> "Content-Length"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">],</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">ForwardUploadContent</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> false</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">,</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> "</span><span style="--shiki-light:#1E66F5;--shiki-dark:#89B4FA;">MaxForwardedQueryParamLength</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">"</span><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;">:</span><span style="--shiki-light:#FE640B;--shiki-dark:#FAB387;"> 2048</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</span></span>
<span class="line"><span style="--shiki-light:#7C7F93;--shiki-dark:#9399B2;"> }</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><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><h2 id="related" tabindex="-1">Related <a class="header-anchor" href="#related" aria-label="Permalink to "Related""></a></h2><ul><li><a href="./../guide/proxy.html">Proxy Endpoints Guide</a> — the full walkthrough</li><li><a href="./../annotations/proxy.html">proxy annotation</a> - Enable proxy for specific endpoints</li><li><a href="./../annotations/user-context.html">user_context annotation</a> - Enable user context forwarding</li><li><a href="./../annotations/user-parameters.html">user_parameters annotation</a> - Enable user parameters forwarding</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="next-steps" tabindex="-1">Next Steps <a class="header-anchor" href="#next-steps" aria-label="Permalink to "Next Steps""></a></h2><ul><li><a href="./http-client.html">HTTP Client</a> - HTTP Types for external API calls from PostgreSQL functions</li><li><a href="./npgsqlrest.html">NpgsqlRest Options</a> - Configure general NpgsqlRest settings</li><li><a href="./auth.html">Authentication</a> - Configure authentication methods</li></ul><h2 id="see-also" tabindex="-1">See Also <a class="header-anchor" href="#see-also" aria-label="Permalink to "See Also""></a></h2><ul><li><a href="/annotations/proxy.html">PROXY</a> - Enable proxy for endpoints</li><li><a href="/annotations/proxy-out.html">PROXY_OUT</a> - Configure outbound proxy settings</li></ul></div></div></main><footer class="VPDocFooter" data-v-39a288b8 data-v-e257564d><!--[--><!--]--><div class="edit-info" data-v-e257564d><div class="edit-link" data-v-e257564d><a class="VPLink link vp-external-link-icon no-icon edit-link-button" href="https://github.com/NpgsqlRest/npgsqlrest-docs/edit/main/docs/config/proxy.md" target="_blank" rel="noreferrer" data-v-e257564d><!--[--><span class="vpi-square-pen edit-link-icon" data-v-e257564d></span> Edit this page on GitHub<!--]--></a></div><!----></div><nav class="prev-next" aria-labelledby="doc-footer-aria-label" data-v-e257564d><span class="visually-hidden" id="doc-footer-aria-label" data-v-e257564d>Pager</span><div class="pager" 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