[{"data":1,"prerenderedAt":954},["ShallowReactive",2],{"navigation_docs":3,"-extend-identity-headers":444,"-extend-identity-headers-surround":949},[4,30,80,245,358,413],{"title":5,"path":6,"stem":7,"children":8,"page":29},"Start","\u002Fstart","1.start",[9,14,19,24],{"title":10,"path":11,"stem":12,"icon":13},"Introduction","\u002Fstart\u002Fintroduction","1.start\u002F1.introduction","i-lucide-info",{"title":15,"path":16,"stem":17,"icon":18},"Why start with evlog","\u002Fstart\u002Fwhy-evlog","1.start\u002F2.why-evlog","i-lucide-rocket",{"title":20,"path":21,"stem":22,"icon":23},"Installation","\u002Fstart\u002Finstallation","1.start\u002F3.installation","i-lucide-download",{"title":25,"path":26,"stem":27,"icon":28},"Quick Start","\u002Fstart\u002Fquick-start","1.start\u002F4.quick-start","i-lucide-zap",false,{"title":31,"path":32,"stem":33,"children":34,"page":29},"Learn","\u002Flearn","2.learn",[35,40,45,50,55,60,65,70,75],{"title":36,"path":37,"stem":38,"icon":39},"Overview","\u002Flearn\u002Foverview","2.learn\u002F0.overview","i-lucide-list",{"title":41,"path":42,"stem":43,"icon":44},"Simple Logging","\u002Flearn\u002Fsimple-logging","2.learn\u002F1.simple-logging","i-lucide-terminal",{"title":46,"path":47,"stem":48,"icon":49},"Wide Events","\u002Flearn\u002Fwide-events","2.learn\u002F2.wide-events","i-lucide-layers",{"title":51,"path":52,"stem":53,"icon":54},"Structured Errors","\u002Flearn\u002Fstructured-errors","2.learn\u002F3.structured-errors","i-lucide-shield-alert",{"title":56,"path":57,"stem":58,"icon":59},"Lifecycle","\u002Flearn\u002Flifecycle","2.learn\u002F4.lifecycle","i-lucide-arrow-right-left",{"title":61,"path":62,"stem":63,"icon":64},"Sampling","\u002Flearn\u002Fsampling","2.learn\u002F5.sampling","i-lucide-filter",{"title":66,"path":67,"stem":68,"icon":69},"Auto-Redaction","\u002Flearn\u002Fredaction","2.learn\u002F6.redaction","i-lucide-eye-off",{"title":71,"path":72,"stem":73,"icon":74},"Typed Fields","\u002Flearn\u002Ftyped-fields","2.learn\u002F7.typed-fields","i-simple-icons-typescript",{"title":76,"path":77,"stem":78,"icon":79},"Catalogs","\u002Flearn\u002Fcatalogs","2.learn\u002F8.catalogs","i-lucide-book-open",{"title":81,"path":82,"stem":83,"children":84,"page":29},"Integrate","\u002Fintegrate","3.integrate",[85,89,157],{"title":36,"path":86,"stem":87,"icon":88},"\u002Fintegrate\u002Foverview","3.integrate\u002F0.overview","i-lucide-plug",{"title":90,"path":91,"stem":92,"children":93,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","3.integrate\u002Fadapters",[94,97,137],{"title":36,"path":95,"stem":96,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","3.integrate\u002Fadapters\u002F01.overview",{"title":98,"path":99,"stem":100,"children":101,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","3.integrate\u002Fadapters\u002Fcloud",[102,107,112,117,122,127,132],{"title":103,"path":104,"stem":105,"icon":106},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","3.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":108,"path":109,"stem":110,"icon":111},"OTLP","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fotlp","3.integrate\u002Fadapters\u002Fcloud\u002F02.otlp","i-simple-icons-opentelemetry",{"title":113,"path":114,"stem":115,"icon":116},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","3.integrate\u002Fadapters\u002Fcloud\u002F03.posthog","i-simple-icons-posthog",{"title":118,"path":119,"stem":120,"icon":121},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","3.integrate\u002Fadapters\u002Fcloud\u002F04.sentry","i-simple-icons-sentry",{"title":123,"path":124,"stem":125,"icon":126},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","3.integrate\u002Fadapters\u002Fcloud\u002F05.better-stack","i-simple-icons-betterstack",{"title":128,"path":129,"stem":130,"icon":131},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","3.integrate\u002Fadapters\u002Fcloud\u002F06.datadog","i-simple-icons-datadog",{"title":133,"path":134,"stem":135,"icon":136},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fhyperdx","3.integrate\u002Fadapters\u002Fcloud\u002F07.hyperdx","i-custom-hyperdx",{"title":138,"path":139,"stem":140,"children":141,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","3.integrate\u002Fadapters\u002Fself-hosted",[142,147,152],{"title":143,"path":144,"stem":145,"icon":146},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","3.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":148,"path":149,"stem":150,"icon":151},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","3.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":153,"path":154,"stem":155,"icon":156},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","3.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":158,"path":159,"stem":160,"children":161,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","3.integrate\u002Fframeworks",[162,166,171,176,181,186,191,196,201,206,211,216,221,226,230,235,240],{"title":36,"path":163,"stem":164,"icon":165},"\u002Fintegrate\u002Fframeworks\u002Foverview","3.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":167,"path":168,"stem":169,"icon":170},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","3.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":172,"path":173,"stem":174,"icon":175},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","3.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":177,"path":178,"stem":179,"icon":180},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","3.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":182,"path":183,"stem":184,"icon":185},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","3.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":187,"path":188,"stem":189,"icon":190},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","3.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":192,"path":193,"stem":194,"icon":195},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","3.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":197,"path":198,"stem":199,"icon":200},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","3.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":202,"path":203,"stem":204,"icon":205},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","3.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":207,"path":208,"stem":209,"icon":210},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","3.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":212,"path":213,"stem":214,"icon":215},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","3.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":217,"path":218,"stem":219,"icon":220},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","3.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":222,"path":223,"stem":224,"icon":225},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","3.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":227,"path":228,"stem":229,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","3.integrate\u002Fframeworks\u002F13.standalone",{"title":231,"path":232,"stem":233,"icon":234},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","3.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":236,"path":237,"stem":238,"icon":239},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","3.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":241,"path":242,"stem":243,"icon":244},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","3.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":246,"path":247,"stem":248,"children":249,"page":29},"Use Cases","\u002Fuse-cases","4.use-cases",[250,254,259,288,316,348,353],{"title":36,"path":251,"stem":252,"icon":253},"\u002Fuse-cases\u002Foverview","4.use-cases\u002F0.overview","i-lucide-list-checks",{"title":255,"path":256,"stem":257,"icon":258},"Client Logging","\u002Fuse-cases\u002Fclient-logging","4.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":260,"icon":261,"path":262,"stem":263,"children":264,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","4.use-cases\u002F2.ai-sdk",[265,268,273,278,283],{"title":36,"path":266,"stem":267,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","4.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":269,"path":270,"stem":271,"icon":272},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","4.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":274,"path":275,"stem":276,"icon":277},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","4.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":279,"path":280,"stem":281,"icon":282},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","4.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":284,"path":285,"stem":286,"icon":287},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","4.use-cases\u002F2.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":289,"icon":290,"path":291,"stem":292,"children":293,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","4.use-cases\u002F3.better-auth",[294,297,302,307,311],{"title":36,"path":295,"stem":296,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","4.use-cases\u002F3.better-auth\u002F01.overview",{"title":298,"path":299,"stem":300,"icon":301},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","4.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":303,"path":304,"stem":305,"icon":306},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","4.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":308,"path":309,"stem":310,"icon":258},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","4.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":312,"path":313,"stem":314,"icon":315},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","4.use-cases\u002F3.better-auth\u002F05.performance","i-lucide-gauge",{"title":317,"icon":318,"path":319,"stem":320,"children":321,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","4.use-cases\u002F4.audit",[322,325,330,335,340,344],{"title":36,"path":323,"stem":324,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","4.use-cases\u002F4.audit\u002F01.overview",{"title":326,"path":327,"stem":328,"icon":329},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","4.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":331,"path":332,"stem":333,"icon":334},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","4.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":336,"path":337,"stem":338,"icon":339},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","4.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":341,"path":342,"stem":343,"icon":318},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","4.use-cases\u002F4.audit\u002F05.compliance",{"title":345,"path":346,"stem":347,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","4.use-cases\u002F4.audit\u002F06.recipes",{"title":349,"path":350,"stem":351,"icon":352},"Enrichers","\u002Fuse-cases\u002Fenrichers","4.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":354,"path":355,"stem":356,"icon":357},"eve","\u002Fuse-cases\u002Feve","4.use-cases\u002F5.eve","i-custom-eve",{"title":359,"path":360,"stem":361,"children":362,"page":29},"Extend","\u002Fextend","5.extend",[363,367,372,377,382,386,390,394,398,403,408],{"title":36,"path":364,"stem":365,"icon":366},"\u002Fextend\u002Foverview","5.extend\u002F0.overview","i-lucide-blocks",{"title":368,"path":369,"stem":370,"icon":371},"Stream","\u002Fextend\u002Fstream","5.extend\u002F1.stream","i-lucide-radio-tower",{"title":373,"path":374,"stem":375,"icon":376},"Custom framework","\u002Fextend\u002Fcustom-framework","5.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":378,"path":379,"stem":380,"icon":381},"FS reader","\u002Fextend\u002Ffs-reader","5.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":345,"path":383,"stem":384,"icon":385},"\u002Fextend\u002Fconsumer-recipes","5.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":387,"path":388,"stem":389,"icon":366},"Plugins","\u002Fextend\u002Fplugins","5.extend\u002F4.plugins",{"title":391,"path":392,"stem":393,"icon":352},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","5.extend\u002F5.custom-enrichers",{"title":395,"path":396,"stem":397,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","5.extend\u002F6.tail-sampling",{"title":399,"path":400,"stem":401,"icon":402},"Identity headers","\u002Fextend\u002Fidentity-headers","5.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":404,"path":405,"stem":406,"icon":407},"Custom drains","\u002Fextend\u002Fcustom-drains","5.extend\u002F8.custom-drains","i-lucide-share-2",{"title":409,"path":410,"stem":411,"icon":412},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","5.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":414,"path":415,"stem":416,"children":417,"page":29},"Reference","\u002Freference","6.reference",[418,423,426,431,435,440],{"title":419,"path":420,"stem":421,"icon":422},"Configuration","\u002Freference\u002Fconfiguration","6.reference\u002F1.configuration","i-lucide-settings",{"title":312,"path":424,"stem":425,"icon":315},"\u002Freference\u002Fperformance","6.reference\u002F2.performance",{"title":427,"path":428,"stem":429,"icon":430},"Vite Plugin","\u002Freference\u002Fvite-plugin","6.reference\u002F3.vite-plugin","i-custom-vite",{"title":432,"path":433,"stem":434,"icon":318},"Best Practices","\u002Freference\u002Fbest-practices","6.reference\u002F4.best-practices",{"title":436,"path":437,"stem":438,"icon":439},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","6.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":441,"path":442,"stem":443,"icon":352},"Agent Skills","\u002Freference\u002Fagent-skills","6.reference\u002F6.agent-skills",{"id":445,"title":446,"body":447,"description":939,"extension":940,"links":941,"meta":945,"navigation":946,"path":400,"seo":947,"stem":401,"__hash__":948},"docs\u002F5.extend\u002F7.identity-headers.md","Identity Headers",{"type":448,"value":449,"toc":933},"minimark",[450,454,521,535,540,569,573,580,668,672,696,712,907,911,929],[451,452,453],"p",{},"Every drain request sent by evlog is tagged with two identity headers so receivers can identify the traffic:",[455,456,457,470],"table",{},[458,459,460],"thead",{},[461,462,463,467],"tr",{},[464,465,466],"th",{},"Header",[464,468,469],{},"Value",[471,472,473,488],"tbody",{},[461,474,475,482],{},[476,477,478],"td",{},[479,480,481],"code",{},"User-Agent",[476,483,484,487],{},[479,485,486],{},"evlog\u002F\u003Cversion>"," (Node \u002F server runtimes only — browsers strip this header)",[461,489,490,495],{},[476,491,492],{},[479,493,494],{},"X-Evlog-Source",[476,496,497,498,501,502,501,505,501,508,501,511,501,514,501,517,520],{},"The adapter name (",[479,499,500],{},"axiom",", ",[479,503,504],{},"datadog",[479,506,507],{},"otlp",[479,509,510],{},"posthog",[479,512,513],{},"sentry",[479,515,516],{},"better-stack",[479,518,519],{},"client",", …)",[451,522,523,524,527,528,531,532,534],{},"The browser-side ",[479,525,526],{},"evlog\u002Fhttp"," drain (used by the client transport) sets ",[479,529,530],{},"X-Evlog-Source: client"," instead, since browsers cannot override ",[479,533,481],{},".",[536,537,539],"h2",{"id":538},"why","Why",[541,542,543,551,560],"ul",{},[544,545,546,550],"li",{},[547,548,549],"strong",{},"Triage at the receiver."," Quickly distinguish evlog traffic from other clients in the receiving system's logs.",[544,552,553,556,557,559],{},[547,554,555],{},"Track adapter usage and version drift."," Roll out a new evlog version and watch the ",[479,558,481],{}," distribution change centrally.",[544,561,562,565,566,568],{},[547,563,564],{},"Debug a specific drain."," Filter by ",[479,567,494],{}," to isolate one adapter's behavior in a sea of incoming requests.",[536,570,572],{"id":571},"reading-the-version","Reading the version",[451,574,575,576,579],{},"Both constants are exported from ",[479,577,578],{},"evlog\u002Ftoolkit"," so your drain (or your receiver) can reference the canonical values:",[581,582,587],"pre",{"className":583,"code":584,"language":585,"meta":586,"style":586},"language-ts shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { EVLOG_USER_AGENT, EVLOG_VERSION } from 'evlog\u002Ftoolkit'\n\nconsole.log(EVLOG_VERSION)    \u002F\u002F → \"2.16.0\"\nconsole.log(EVLOG_USER_AGENT) \u002F\u002F → \"evlog\u002F2.16.0\"\n","ts","",[479,588,589,627,634,653],{"__ignoreMap":586},[590,591,594,598,602,606,609,612,615,618,621,624],"span",{"class":592,"line":593},"line",1,[590,595,597],{"class":596},"s7zQu","import",[590,599,601],{"class":600},"sMK4o"," {",[590,603,605],{"class":604},"sTEyZ"," EVLOG_USER_AGENT",[590,607,608],{"class":600},",",[590,610,611],{"class":604}," EVLOG_VERSION",[590,613,614],{"class":600}," }",[590,616,617],{"class":596}," from",[590,619,620],{"class":600}," '",[590,622,578],{"class":623},"sfazB",[590,625,626],{"class":600},"'\n",[590,628,630],{"class":592,"line":629},2,[590,631,633],{"emptyLinePlaceholder":632},true,"\n",[590,635,637,640,642,646,649],{"class":592,"line":636},3,[590,638,639],{"class":604},"console",[590,641,534],{"class":600},[590,643,645],{"class":644},"s2Zo4","log",[590,647,648],{"class":604},"(EVLOG_VERSION)    ",[590,650,652],{"class":651},"sHwdD","\u002F\u002F → \"2.16.0\"\n",[590,654,656,658,660,662,665],{"class":592,"line":655},4,[590,657,639],{"class":604},[590,659,534],{"class":600},[590,661,645],{"class":644},[590,663,664],{"class":604},"(EVLOG_USER_AGENT) ",[590,666,667],{"class":651},"\u002F\u002F → \"evlog\u002F2.16.0\"\n",[536,669,671],{"id":670},"overriding-from-a-custom-drain","Overriding from a custom drain",[451,673,674,675,681,682,685,686,689,690,685,692,695],{},"Adapters built with ",[676,677,678],"a",{"href":405},[479,679,680],{},"defineHttpDrain()"," automatically pass the drain ",[479,683,684],{},"name"," as ",[479,687,688],{},"source"," and the canonical ",[479,691,486],{},[479,693,694],{},"userAgent",". You don't need to think about it.",[451,697,698,699,702,703,705,706,708,709,711],{},"When you build a drain on top of ",[479,700,701],{},"httpPost"," from ",[479,704,578],{}," directly (e.g. for a fork with a different identity, or for a vendor that wants its own UA), pass ",[479,707,688],{}," and\u002For ",[479,710,694],{}," to override:",[581,713,715],{"className":583,"code":714,"language":585,"meta":586,"style":586},"import { httpPost } from 'evlog\u002Ftoolkit'\n\nawait httpPost({\n  url: 'https:\u002F\u002Fmy-platform.example.com\u002Fingest',\n  headers: { 'Content-Type': 'application\u002Fjson' },\n  body: '[]',\n  timeout: 5000,\n  label: 'my-platform',\n  source: 'my-platform',           \u002F\u002F sent as X-Evlog-Source\n  userAgent: 'my-fork\u002F1.0',        \u002F\u002F overrides the default User-Agent\n  \u002F\u002F userAgent: false,             \u002F\u002F suppress the header entirely\n})\n",[479,716,717,736,740,753,773,802,819,833,850,869,889,898],{"__ignoreMap":586},[590,718,719,721,723,726,728,730,732,734],{"class":592,"line":593},[590,720,597],{"class":596},[590,722,601],{"class":600},[590,724,725],{"class":604}," httpPost",[590,727,614],{"class":600},[590,729,617],{"class":596},[590,731,620],{"class":600},[590,733,578],{"class":623},[590,735,626],{"class":600},[590,737,738],{"class":592,"line":629},[590,739,633],{"emptyLinePlaceholder":632},[590,741,742,745,747,750],{"class":592,"line":636},[590,743,744],{"class":596},"await",[590,746,725],{"class":644},[590,748,749],{"class":604},"(",[590,751,752],{"class":600},"{\n",[590,754,755,759,762,764,767,770],{"class":592,"line":655},[590,756,758],{"class":757},"swJcz","  url",[590,760,761],{"class":600},":",[590,763,620],{"class":600},[590,765,766],{"class":623},"https:\u002F\u002Fmy-platform.example.com\u002Fingest",[590,768,769],{"class":600},"'",[590,771,772],{"class":600},",\n",[590,774,776,779,781,783,785,788,790,792,794,797,799],{"class":592,"line":775},5,[590,777,778],{"class":757},"  headers",[590,780,761],{"class":600},[590,782,601],{"class":600},[590,784,620],{"class":600},[590,786,787],{"class":757},"Content-Type",[590,789,769],{"class":600},[590,791,761],{"class":600},[590,793,620],{"class":600},[590,795,796],{"class":623},"application\u002Fjson",[590,798,769],{"class":600},[590,800,801],{"class":600}," },\n",[590,803,805,808,810,812,815,817],{"class":592,"line":804},6,[590,806,807],{"class":757},"  body",[590,809,761],{"class":600},[590,811,620],{"class":600},[590,813,814],{"class":623},"[]",[590,816,769],{"class":600},[590,818,772],{"class":600},[590,820,822,825,827,831],{"class":592,"line":821},7,[590,823,824],{"class":757},"  timeout",[590,826,761],{"class":600},[590,828,830],{"class":829},"sbssI"," 5000",[590,832,772],{"class":600},[590,834,836,839,841,843,846,848],{"class":592,"line":835},8,[590,837,838],{"class":757},"  label",[590,840,761],{"class":600},[590,842,620],{"class":600},[590,844,845],{"class":623},"my-platform",[590,847,769],{"class":600},[590,849,772],{"class":600},[590,851,853,856,858,860,862,864,866],{"class":592,"line":852},9,[590,854,855],{"class":757},"  source",[590,857,761],{"class":600},[590,859,620],{"class":600},[590,861,845],{"class":623},[590,863,769],{"class":600},[590,865,608],{"class":600},[590,867,868],{"class":651},"           \u002F\u002F sent as X-Evlog-Source\n",[590,870,872,875,877,879,882,884,886],{"class":592,"line":871},10,[590,873,874],{"class":757},"  userAgent",[590,876,761],{"class":600},[590,878,620],{"class":600},[590,880,881],{"class":623},"my-fork\u002F1.0",[590,883,769],{"class":600},[590,885,608],{"class":600},[590,887,888],{"class":651},"        \u002F\u002F overrides the default User-Agent\n",[590,890,892,895],{"class":592,"line":891},11,[590,893,894],{"class":651},"  \u002F\u002F userAgent: false,",[590,896,897],{"class":651},"             \u002F\u002F suppress the header entirely\n",[590,899,901,904],{"class":592,"line":900},12,[590,902,903],{"class":600},"}",[590,905,906],{"class":604},")\n",[536,908,910],{"id":909},"next-steps","Next steps",[541,912,913,923],{},[544,914,915,918,919,922],{},[676,916,917],{"href":405},"Custom Drains"," — ",[479,920,921],{},"defineHttpDrain"," injects identity headers automatically",[544,924,925,928],{},[676,926,927],{"href":410},"Drain Pipeline"," — wrap any drain in batch + retry while keeping identity headers",[930,931,932],"style",{},"html pre.shiki code .s7zQu, html code.shiki .s7zQu{--shiki-light:#39ADB5;--shiki-light-font-style:italic;--shiki-default:#89DDFF;--shiki-default-font-style:italic;--shiki-dark:#89DDFF;--shiki-dark-font-style:italic}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .sHwdD, html code.shiki .sHwdD{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#546E7A;--shiki-default-font-style:italic;--shiki-dark:#676E95;--shiki-dark-font-style:italic}html .light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html.light .shiki span {color: var(--shiki-light);background: var(--shiki-light-bg);font-style: var(--shiki-light-font-style);font-weight: var(--shiki-light-font-weight);text-decoration: var(--shiki-light-text-decoration);}html .default .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .shiki span {color: var(--shiki-default);background: var(--shiki-default-bg);font-style: var(--shiki-default-font-style);font-weight: var(--shiki-default-font-weight);text-decoration: var(--shiki-default-text-decoration);}html .dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html.dark .shiki span {color: var(--shiki-dark);background: var(--shiki-dark-bg);font-style: var(--shiki-dark-font-style);font-weight: var(--shiki-dark-font-weight);text-decoration: var(--shiki-dark-text-decoration);}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":586,"searchDepth":629,"depth":629,"links":934},[935,936,937,938],{"id":538,"depth":629,"text":539},{"id":571,"depth":629,"text":572},{"id":670,"depth":629,"text":671},{"id":909,"depth":629,"text":910},"Every drain request sent by evlog is tagged with User-Agent and X-Evlog-Source headers so receivers can identify and triage the traffic. Override or suppress them when your custom drain needs different identity.","md",[942],{"label":917,"icon":407,"to":405,"color":943,"variant":944},"neutral","subtle",{},{"title":399,"icon":402},{"title":446,"description":939},"UpSbbTef47vMxtu4Pph48SjBF68OaEPBZOLoGhRxGZU",[950,952],{"title":395,"path":396,"stem":397,"description":951,"icon":64,"children":-1},"Decide post-hoc whether to keep an event with full knowledge of its outcome (status, duration, errors). The opposite of head sampling — keep all errors and slow requests while throwing away healthy noise.",{"title":404,"path":405,"stem":406,"description":953,"icon":407,"children":-1},"Build a drain for any backend without a built-in adapter — defineHttpDrain for HTTP destinations, defineDrain for any other transport. Standardized config resolution, retries, timeouts, and identity headers handled for you.",1782925732109]