[{"data":1,"prerenderedAt":1077},["ShallowReactive",2],{"navigation_docs":3,"-extend-identity-headers":567,"-extend-identity-headers-surround":1072},[4,30,80,133,313,444,503,542],{"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},"CLI","\u002Fcli","3.cli",[85,88,93,98,103,108,113,118,123,128],{"title":36,"path":86,"stem":87,"icon":44},"\u002Fcli\u002Foverview","3.cli\u002F0.overview",{"title":89,"path":90,"stem":91,"icon":92},"init","\u002Fcli\u002Finit","3.cli\u002F1.init","i-lucide-wand-sparkles",{"title":94,"path":95,"stem":96,"icon":97},"map","\u002Fcli\u002Fmap","3.cli\u002F2.map","i-lucide-radar",{"title":99,"path":100,"stem":101,"icon":102},"Rules","\u002Fcli\u002Frules","3.cli\u002F3.rules","i-lucide-list-checks",{"title":104,"path":105,"stem":106,"icon":107},"Scoring","\u002Fcli\u002Fscoring","3.cli\u002F4.scoring","i-lucide-gauge",{"title":109,"path":110,"stem":111,"icon":112},"CI","\u002Fcli\u002Fci","3.cli\u002F5.ci","i-lucide-git-pull-request",{"title":114,"path":115,"stem":116,"icon":117},"doctor","\u002Fcli\u002Fdoctor","3.cli\u002F6.doctor","i-lucide-stethoscope",{"title":119,"path":120,"stem":121,"icon":122},"telemetry","\u002Fcli\u002Ftelemetry","3.cli\u002F7.telemetry","i-lucide-bar-chart-3",{"title":124,"path":125,"stem":126,"icon":127},"agents","\u002Fcli\u002Fagents","3.cli\u002F8.agents","i-lucide-bot",{"title":129,"path":130,"stem":131,"icon":132},"Observability Score","\u002Fcli\u002Fobservability-score","3.cli\u002F9.observability-score","i-lucide-activity",{"title":134,"path":135,"stem":136,"children":137,"page":29},"Integrate","\u002Fintegrate","4.integrate",[138,142,225],{"title":36,"path":139,"stem":140,"icon":141},"\u002Fintegrate\u002Foverview","4.integrate\u002F0.overview","i-lucide-plug",{"title":143,"path":144,"stem":145,"children":146,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","4.integrate\u002Fadapters",[147,150,180,205],{"title":36,"path":148,"stem":149,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","4.integrate\u002Fadapters\u002F01.overview",{"title":151,"path":152,"stem":153,"children":154,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","4.integrate\u002Fadapters\u002Fcloud",[155,160,165,170,175],{"title":156,"path":157,"stem":158,"icon":159},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","4.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":161,"path":162,"stem":163,"icon":164},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","4.integrate\u002Fadapters\u002Fcloud\u002F02.posthog","i-simple-icons-posthog",{"title":166,"path":167,"stem":168,"icon":169},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","4.integrate\u002Fadapters\u002Fcloud\u002F03.sentry","i-simple-icons-sentry",{"title":171,"path":172,"stem":173,"icon":174},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","4.integrate\u002Fadapters\u002Fcloud\u002F04.better-stack","i-simple-icons-betterstack",{"title":176,"path":177,"stem":178,"icon":179},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","4.integrate\u002Fadapters\u002Fcloud\u002F05.datadog","i-simple-icons-datadog",{"title":181,"path":182,"stem":183,"children":184,"page":29},"Cloud or Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fhybrid","4.integrate\u002Fadapters\u002Fhybrid",[185,190,195,200],{"title":186,"path":187,"stem":188,"icon":189},"Grafana Loki","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Floki","4.integrate\u002Fadapters\u002Fhybrid\u002F01.loki","i-simple-icons-grafana",{"title":191,"path":192,"stem":193,"icon":194},"ClickHouse","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fclickhouse","4.integrate\u002Fadapters\u002Fhybrid\u002F02.clickhouse","i-simple-icons-clickhouse",{"title":196,"path":197,"stem":198,"icon":199},"OTLP","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fotlp","4.integrate\u002Fadapters\u002Fhybrid\u002F03.otlp","i-simple-icons-opentelemetry",{"title":201,"path":202,"stem":203,"icon":204},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fhyperdx","4.integrate\u002Fadapters\u002Fhybrid\u002F04.hyperdx","i-custom-hyperdx",{"title":206,"path":207,"stem":208,"children":209,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","4.integrate\u002Fadapters\u002Fself-hosted",[210,215,220],{"title":211,"path":212,"stem":213,"icon":214},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","4.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":216,"path":217,"stem":218,"icon":219},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","4.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":221,"path":222,"stem":223,"icon":224},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","4.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":226,"path":227,"stem":228,"children":229,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","4.integrate\u002Fframeworks",[230,234,239,244,249,254,259,264,269,274,279,284,289,294,298,303,308],{"title":36,"path":231,"stem":232,"icon":233},"\u002Fintegrate\u002Fframeworks\u002Foverview","4.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":235,"path":236,"stem":237,"icon":238},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","4.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":240,"path":241,"stem":242,"icon":243},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","4.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":245,"path":246,"stem":247,"icon":248},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","4.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":250,"path":251,"stem":252,"icon":253},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","4.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":255,"path":256,"stem":257,"icon":258},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","4.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":260,"path":261,"stem":262,"icon":263},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","4.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":265,"path":266,"stem":267,"icon":268},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","4.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":270,"path":271,"stem":272,"icon":273},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","4.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":275,"path":276,"stem":277,"icon":278},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","4.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":280,"path":281,"stem":282,"icon":283},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","4.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":285,"path":286,"stem":287,"icon":288},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","4.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":290,"path":291,"stem":292,"icon":293},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","4.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":295,"path":296,"stem":297,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","4.integrate\u002Fframeworks\u002F13.standalone",{"title":299,"path":300,"stem":301,"icon":302},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","4.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":304,"path":305,"stem":306,"icon":307},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","4.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":309,"path":310,"stem":311,"icon":312},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","4.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":314,"path":315,"stem":316,"children":317,"page":29},"Use Cases","\u002Fuse-cases","5.use-cases",[318,321,326,354,381,413,434,439],{"title":36,"path":319,"stem":320,"icon":102},"\u002Fuse-cases\u002Foverview","5.use-cases\u002F0.overview",{"title":322,"path":323,"stem":324,"icon":325},"Client Logging","\u002Fuse-cases\u002Fclient-logging","5.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":327,"icon":328,"path":329,"stem":330,"children":331,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","5.use-cases\u002F2.ai-sdk",[332,335,340,345,350],{"title":36,"path":333,"stem":334,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","5.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":336,"path":337,"stem":338,"icon":339},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","5.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":341,"path":342,"stem":343,"icon":344},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","5.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":346,"path":347,"stem":348,"icon":349},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","5.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":351,"path":352,"stem":353,"icon":132},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","5.use-cases\u002F2.ai-sdk\u002F05.telemetry",{"title":355,"icon":356,"path":357,"stem":358,"children":359,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","5.use-cases\u002F3.better-auth",[360,363,368,373,377],{"title":36,"path":361,"stem":362,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","5.use-cases\u002F3.better-auth\u002F01.overview",{"title":364,"path":365,"stem":366,"icon":367},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","5.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":369,"path":370,"stem":371,"icon":372},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","5.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":374,"path":375,"stem":376,"icon":325},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","5.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":378,"path":379,"stem":380,"icon":107},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","5.use-cases\u002F3.better-auth\u002F05.performance",{"title":382,"icon":383,"path":384,"stem":385,"children":386,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","5.use-cases\u002F4.audit",[387,390,395,400,405,409],{"title":36,"path":388,"stem":389,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","5.use-cases\u002F4.audit\u002F01.overview",{"title":391,"path":392,"stem":393,"icon":394},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","5.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":396,"path":397,"stem":398,"icon":399},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","5.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":401,"path":402,"stem":403,"icon":404},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","5.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":406,"path":407,"stem":408,"icon":383},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","5.use-cases\u002F4.audit\u002F05.compliance",{"title":410,"path":411,"stem":412,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","5.use-cases\u002F4.audit\u002F06.recipes",{"title":351,"icon":107,"path":414,"stem":415,"children":416,"page":29},"\u002Fuse-cases\u002Ftelemetry","5.use-cases\u002F4.telemetry",[417,420,425,430],{"title":36,"path":418,"stem":419,"icon":39},"\u002Fuse-cases\u002Ftelemetry\u002Foverview","5.use-cases\u002F4.telemetry\u002F01.overview",{"title":421,"path":422,"stem":423,"icon":424},"Setup","\u002Fuse-cases\u002Ftelemetry\u002Fsetup","5.use-cases\u002F4.telemetry\u002F02.setup","i-lucide-wrench",{"title":426,"path":427,"stem":428,"icon":429},"Ingest","\u002Fuse-cases\u002Ftelemetry\u002Fingest","5.use-cases\u002F4.telemetry\u002F03.ingest","i-lucide-server",{"title":431,"path":432,"stem":433,"icon":79},"Reference","\u002Fuse-cases\u002Ftelemetry\u002Freference","5.use-cases\u002F4.telemetry\u002F04.reference",{"title":435,"path":436,"stem":437,"icon":438},"Enrichers","\u002Fuse-cases\u002Fenrichers","5.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":440,"path":441,"stem":442,"icon":443},"eve","\u002Fuse-cases\u002Feve","5.use-cases\u002F5.eve","i-custom-eve",{"title":445,"path":446,"stem":447,"children":448,"page":29},"Extend","\u002Fextend","6.extend",[449,453,458,463,467,472,476,480,484,488,493,498],{"title":36,"path":450,"stem":451,"icon":452},"\u002Fextend\u002Foverview","6.extend\u002F0.overview","i-lucide-blocks",{"title":454,"path":455,"stem":456,"icon":457},"Stream","\u002Fextend\u002Fstream","6.extend\u002F1.stream","i-lucide-radio-tower",{"title":459,"path":460,"stem":461,"icon":462},"Custom framework","\u002Fextend\u002Fcustom-framework","6.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":464,"path":465,"stem":466,"icon":457},"Diagnostics channel","\u002Fextend\u002Fdiagnostics-channel","6.extend\u002F11.diagnostics-channel",{"title":468,"path":469,"stem":470,"icon":471},"FS reader","\u002Fextend\u002Ffs-reader","6.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":410,"path":473,"stem":474,"icon":475},"\u002Fextend\u002Fconsumer-recipes","6.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":477,"path":478,"stem":479,"icon":452},"Plugins","\u002Fextend\u002Fplugins","6.extend\u002F4.plugins",{"title":481,"path":482,"stem":483,"icon":438},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","6.extend\u002F5.custom-enrichers",{"title":485,"path":486,"stem":487,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","6.extend\u002F6.tail-sampling",{"title":489,"path":490,"stem":491,"icon":492},"Identity headers","\u002Fextend\u002Fidentity-headers","6.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":494,"path":495,"stem":496,"icon":497},"Custom drains","\u002Fextend\u002Fcustom-drains","6.extend\u002F8.custom-drains","i-lucide-share-2",{"title":499,"path":500,"stem":501,"icon":502},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","6.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":431,"path":504,"stem":505,"children":506,"page":29},"\u002Freference","7.reference",[507,511,516,519,524,528,533,537],{"title":36,"path":508,"stem":509,"icon":510},"\u002Freference\u002Foverview","7.reference\u002F0.overview","i-lucide-book-marked",{"title":512,"path":513,"stem":514,"icon":515},"Configuration","\u002Freference\u002Fconfiguration","7.reference\u002F1.configuration","i-lucide-settings",{"title":378,"path":517,"stem":518,"icon":107},"\u002Freference\u002Fperformance","7.reference\u002F2.performance",{"title":520,"path":521,"stem":522,"icon":523},"Vite Plugin","\u002Freference\u002Fvite-plugin","7.reference\u002F3.vite-plugin","i-custom-vite",{"title":525,"path":526,"stem":527,"icon":383},"Best Practices","\u002Freference\u002Fbest-practices","7.reference\u002F4.best-practices",{"title":529,"path":530,"stem":531,"icon":532},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","7.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":534,"path":535,"stem":536,"icon":438},"Agent Skills","\u002Freference\u002Fagent-skills","7.reference\u002F6.agent-skills",{"title":538,"path":539,"stem":540,"icon":541},"Cost","\u002Freference\u002Fcost","7.reference\u002F7.cost","i-lucide-receipt",{"title":543,"path":544,"stem":545,"children":546,"page":29},"Compare","\u002Fcompare","8.compare",[547,551,555,559,563],{"title":548,"path":549,"stem":550,"icon":532},"evlog vs Pino","\u002Fcompare\u002Fpino","8.compare\u002F1.pino",{"title":552,"path":553,"stem":554,"icon":199},"evlog vs OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":556,"path":557,"stem":558,"icon":532},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":560,"path":561,"stem":562,"icon":532},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":564,"path":565,"stem":566,"icon":532},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":568,"title":569,"body":570,"description":1062,"extension":1063,"links":1064,"meta":1068,"navigation":1069,"path":490,"seo":1070,"stem":491,"__hash__":1071},"docs\u002F6.extend\u002F7.identity-headers.md","Identity Headers",{"type":571,"value":572,"toc":1056},"minimark",[573,577,644,658,663,692,696,703,791,795,819,835,1030,1034,1052],[574,575,576],"p",{},"Every drain request sent by evlog is tagged with two identity headers so receivers can identify the traffic:",[578,579,580,593],"table",{},[581,582,583],"thead",{},[584,585,586,590],"tr",{},[587,588,589],"th",{},"Header",[587,591,592],{},"Value",[594,595,596,611],"tbody",{},[584,597,598,605],{},[599,600,601],"td",{},[602,603,604],"code",{},"User-Agent",[599,606,607,610],{},[602,608,609],{},"evlog\u002F\u003Cversion>"," (Node \u002F server runtimes only — browsers strip this header)",[584,612,613,618],{},[599,614,615],{},[602,616,617],{},"X-Evlog-Source",[599,619,620,621,624,625,624,628,624,631,624,634,624,637,624,640,643],{},"The adapter name (",[602,622,623],{},"axiom",", ",[602,626,627],{},"datadog",[602,629,630],{},"otlp",[602,632,633],{},"posthog",[602,635,636],{},"sentry",[602,638,639],{},"better-stack",[602,641,642],{},"client",", …)",[574,645,646,647,650,651,654,655,657],{},"The browser-side ",[602,648,649],{},"evlog\u002Fhttp"," drain (used by client logging) sets ",[602,652,653],{},"X-Evlog-Source: client"," instead, since browsers cannot override ",[602,656,604],{},".",[659,660,662],"h2",{"id":661},"why","Why",[664,665,666,674,683],"ul",{},[667,668,669,673],"li",{},[670,671,672],"strong",{},"Triage at the receiver."," Quickly distinguish evlog traffic from other clients in the receiving system's logs.",[667,675,676,679,680,682],{},[670,677,678],{},"Track adapter usage and version drift."," Roll out a new evlog version and watch the ",[602,681,604],{}," distribution change centrally.",[667,684,685,688,689,691],{},[670,686,687],{},"Debug a specific drain."," Filter by ",[602,690,617],{}," to isolate one adapter's behavior in a sea of incoming requests.",[659,693,695],{"id":694},"reading-the-version","Reading the version",[574,697,698,699,702],{},"Both constants are exported from ",[602,700,701],{},"evlog\u002Ftoolkit"," so your drain (or your receiver) can reference the canonical values:",[704,705,710],"pre",{"className":706,"code":707,"language":708,"meta":709,"style":709},"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","",[602,711,712,750,757,776],{"__ignoreMap":709},[713,714,717,721,725,729,732,735,738,741,744,747],"span",{"class":715,"line":716},"line",1,[713,718,720],{"class":719},"s7zQu","import",[713,722,724],{"class":723},"sMK4o"," {",[713,726,728],{"class":727},"sTEyZ"," EVLOG_USER_AGENT",[713,730,731],{"class":723},",",[713,733,734],{"class":727}," EVLOG_VERSION",[713,736,737],{"class":723}," }",[713,739,740],{"class":719}," from",[713,742,743],{"class":723}," '",[713,745,701],{"class":746},"sfazB",[713,748,749],{"class":723},"'\n",[713,751,753],{"class":715,"line":752},2,[713,754,756],{"emptyLinePlaceholder":755},true,"\n",[713,758,760,763,765,769,772],{"class":715,"line":759},3,[713,761,762],{"class":727},"console",[713,764,657],{"class":723},[713,766,768],{"class":767},"s2Zo4","log",[713,770,771],{"class":727},"(EVLOG_VERSION)    ",[713,773,775],{"class":774},"sHwdD","\u002F\u002F → \"2.16.0\"\n",[713,777,779,781,783,785,788],{"class":715,"line":778},4,[713,780,762],{"class":727},[713,782,657],{"class":723},[713,784,768],{"class":767},[713,786,787],{"class":727},"(EVLOG_USER_AGENT) ",[713,789,790],{"class":774},"\u002F\u002F → \"evlog\u002F2.16.0\"\n",[659,792,794],{"id":793},"overriding-from-a-custom-drain","Overriding from a custom drain",[574,796,797,798,804,805,808,809,812,813,808,815,818],{},"Adapters built with ",[799,800,801],"a",{"href":495},[602,802,803],{},"defineHttpDrain()"," automatically pass the drain ",[602,806,807],{},"name"," as ",[602,810,811],{},"source"," and the canonical ",[602,814,609],{},[602,816,817],{},"userAgent",". You don't need to think about it.",[574,820,821,822,825,826,828,829,831,832,834],{},"When you build a drain on top of ",[602,823,824],{},"httpPost"," from ",[602,827,701],{}," directly (e.g. for a fork with a different identity, or for a vendor that wants its own UA), pass ",[602,830,811],{}," and\u002For ",[602,833,817],{}," to override:",[704,836,838],{"className":706,"code":837,"language":708,"meta":709,"style":709},"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",[602,839,840,859,863,876,896,925,942,956,973,992,1012,1021],{"__ignoreMap":709},[713,841,842,844,846,849,851,853,855,857],{"class":715,"line":716},[713,843,720],{"class":719},[713,845,724],{"class":723},[713,847,848],{"class":727}," httpPost",[713,850,737],{"class":723},[713,852,740],{"class":719},[713,854,743],{"class":723},[713,856,701],{"class":746},[713,858,749],{"class":723},[713,860,861],{"class":715,"line":752},[713,862,756],{"emptyLinePlaceholder":755},[713,864,865,868,870,873],{"class":715,"line":759},[713,866,867],{"class":719},"await",[713,869,848],{"class":767},[713,871,872],{"class":727},"(",[713,874,875],{"class":723},"{\n",[713,877,878,882,885,887,890,893],{"class":715,"line":778},[713,879,881],{"class":880},"swJcz","  url",[713,883,884],{"class":723},":",[713,886,743],{"class":723},[713,888,889],{"class":746},"https:\u002F\u002Fmy-platform.example.com\u002Fingest",[713,891,892],{"class":723},"'",[713,894,895],{"class":723},",\n",[713,897,899,902,904,906,908,911,913,915,917,920,922],{"class":715,"line":898},5,[713,900,901],{"class":880},"  headers",[713,903,884],{"class":723},[713,905,724],{"class":723},[713,907,743],{"class":723},[713,909,910],{"class":880},"Content-Type",[713,912,892],{"class":723},[713,914,884],{"class":723},[713,916,743],{"class":723},[713,918,919],{"class":746},"application\u002Fjson",[713,921,892],{"class":723},[713,923,924],{"class":723}," },\n",[713,926,928,931,933,935,938,940],{"class":715,"line":927},6,[713,929,930],{"class":880},"  body",[713,932,884],{"class":723},[713,934,743],{"class":723},[713,936,937],{"class":746},"[]",[713,939,892],{"class":723},[713,941,895],{"class":723},[713,943,945,948,950,954],{"class":715,"line":944},7,[713,946,947],{"class":880},"  timeout",[713,949,884],{"class":723},[713,951,953],{"class":952},"sbssI"," 5000",[713,955,895],{"class":723},[713,957,959,962,964,966,969,971],{"class":715,"line":958},8,[713,960,961],{"class":880},"  label",[713,963,884],{"class":723},[713,965,743],{"class":723},[713,967,968],{"class":746},"my-platform",[713,970,892],{"class":723},[713,972,895],{"class":723},[713,974,976,979,981,983,985,987,989],{"class":715,"line":975},9,[713,977,978],{"class":880},"  source",[713,980,884],{"class":723},[713,982,743],{"class":723},[713,984,968],{"class":746},[713,986,892],{"class":723},[713,988,731],{"class":723},[713,990,991],{"class":774},"           \u002F\u002F sent as X-Evlog-Source\n",[713,993,995,998,1000,1002,1005,1007,1009],{"class":715,"line":994},10,[713,996,997],{"class":880},"  userAgent",[713,999,884],{"class":723},[713,1001,743],{"class":723},[713,1003,1004],{"class":746},"my-fork\u002F1.0",[713,1006,892],{"class":723},[713,1008,731],{"class":723},[713,1010,1011],{"class":774},"        \u002F\u002F overrides the default User-Agent\n",[713,1013,1015,1018],{"class":715,"line":1014},11,[713,1016,1017],{"class":774},"  \u002F\u002F userAgent: false,",[713,1019,1020],{"class":774},"             \u002F\u002F suppress the header entirely\n",[713,1022,1024,1027],{"class":715,"line":1023},12,[713,1025,1026],{"class":723},"}",[713,1028,1029],{"class":727},")\n",[659,1031,1033],{"id":1032},"next-steps","Next steps",[664,1035,1036,1046],{},[667,1037,1038,1041,1042,1045],{},[799,1039,1040],{"href":495},"Custom Drains",": ",[602,1043,1044],{},"defineHttpDrain"," injects identity headers automatically",[667,1047,1048,1051],{},[799,1049,1050],{"href":500},"Drain Pipeline",": wrap any drain in batch + retry while keeping identity headers",[1053,1054,1055],"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":709,"searchDepth":752,"depth":752,"links":1057},[1058,1059,1060,1061],{"id":661,"depth":752,"text":662},{"id":694,"depth":752,"text":695},{"id":793,"depth":752,"text":794},{"id":1032,"depth":752,"text":1033},"Every drain request carries User-Agent and X-Evlog-Source so receivers can triage the traffic. Override or suppress them when you need to.","md",[1065],{"label":1040,"icon":497,"to":495,"color":1066,"variant":1067},"neutral","subtle",{},{"title":489,"icon":492},{"title":569,"description":1062},"9-jU3J69nXSua-FxSUy-KREnVDLGGawYYXsbgXPprR4",[1073,1075],{"title":485,"path":486,"stem":487,"description":1074,"icon":64,"children":-1},"Decide after the fact whether to keep an event, knowing its status, duration, and errors. Keep every error, throw away healthy noise.",{"title":494,"path":495,"stem":496,"description":1076,"icon":497,"children":-1},"Build a drain for any backend without a built-in adapter. Config resolution, retries, timeouts, and identity headers are handled for you.",1788921655109]