[{"data":1,"prerenderedAt":996},["ShallowReactive",2],{"navigation_docs":3,"-build-on-top-sinks-identity-headers":547,"-build-on-top-sinks-identity-headers-surround":991},[4,35,159,201,289,446,531],{"title":5,"path":6,"stem":7,"children":8,"page":34},"Getting Started","\u002Fgetting-started","1.getting-started",[9,14,19,24,29],{"title":10,"path":11,"stem":12,"icon":13},"Introduction","\u002Fgetting-started\u002Fintroduction","1.getting-started\u002F1.introduction","i-lucide-info",{"title":15,"path":16,"stem":17,"icon":18},"Installation","\u002Fgetting-started\u002Finstallation","1.getting-started\u002F2.installation","i-lucide-download",{"title":20,"path":21,"stem":22,"icon":23},"Quick Start","\u002Fgetting-started\u002Fquick-start","1.getting-started\u002F3.quick-start","i-lucide-zap",{"title":25,"path":26,"stem":27,"icon":28},"Agent Skills","\u002Fgetting-started\u002Fagent-skills","1.getting-started\u002F4.agent-skills","i-lucide-sparkles",{"title":30,"path":31,"stem":32,"icon":33},"vs Other Loggers","\u002Fgetting-started\u002Fvs-other-loggers","1.getting-started\u002F5.vs-other-loggers","i-lucide-scale",false,{"title":36,"path":37,"stem":38,"children":39,"page":34},"Logging","\u002Flogging","2.logging",[40,45,50,55,60,65,70,99,127],{"title":41,"path":42,"stem":43,"icon":44},"Overview","\u002Flogging\u002Foverview","2.logging\u002F0.overview","i-lucide-list",{"title":46,"path":47,"stem":48,"icon":49},"Simple Logging","\u002Flogging\u002Fsimple-logging","2.logging\u002F1.simple-logging","i-lucide-terminal",{"title":51,"path":52,"stem":53,"icon":54},"Wide Events","\u002Flogging\u002Fwide-events","2.logging\u002F2.wide-events","i-lucide-layers",{"title":56,"path":57,"stem":58,"icon":59},"Structured Errors","\u002Flogging\u002Fstructured-errors","2.logging\u002F3.structured-errors","i-lucide-shield-alert",{"title":61,"path":62,"stem":63,"icon":64},"Catalogs","\u002Flogging\u002Fcatalogs","2.logging\u002F4.catalogs","i-lucide-book-open",{"title":66,"path":67,"stem":68,"icon":69},"Client Logging","\u002Flogging\u002Fclient-logging","2.logging\u002F5.client-logging","i-lucide-monitor",{"title":71,"icon":72,"path":73,"stem":74,"children":75,"page":34},"AI SDK","i-simple-icons-vercel","\u002Flogging\u002Fai-sdk","2.logging\u002F6.ai-sdk",[76,79,84,89,94],{"title":41,"path":77,"stem":78,"icon":44},"\u002Flogging\u002Fai-sdk\u002Foverview","2.logging\u002F6.ai-sdk\u002F01.overview",{"title":80,"path":81,"stem":82,"icon":83},"Usage","\u002Flogging\u002Fai-sdk\u002Fusage","2.logging\u002F6.ai-sdk\u002F02.usage","i-lucide-code",{"title":85,"path":86,"stem":87,"icon":88},"Options","\u002Flogging\u002Fai-sdk\u002Foptions","2.logging\u002F6.ai-sdk\u002F03.options","i-lucide-sliders",{"title":90,"path":91,"stem":92,"icon":93},"Metadata","\u002Flogging\u002Fai-sdk\u002Fmetadata","2.logging\u002F6.ai-sdk\u002F04.metadata","i-lucide-database",{"title":95,"path":96,"stem":97,"icon":98},"Telemetry","\u002Flogging\u002Fai-sdk\u002Ftelemetry","2.logging\u002F6.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":100,"icon":101,"path":102,"stem":103,"children":104,"page":34},"Better Auth","i-simple-icons-betterauth","\u002Flogging\u002Fbetter-auth","2.logging\u002F7.better-auth",[105,108,113,118,122],{"title":41,"path":106,"stem":107,"icon":44},"\u002Flogging\u002Fbetter-auth\u002Foverview","2.logging\u002F7.better-auth\u002F01.overview",{"title":109,"path":110,"stem":111,"icon":112},"Identify User","\u002Flogging\u002Fbetter-auth\u002Fidentify-user","2.logging\u002F7.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":114,"path":115,"stem":116,"icon":117},"Middleware","\u002Flogging\u002Fbetter-auth\u002Fmiddleware","2.logging\u002F7.better-auth\u002F03.middleware","i-lucide-shield",{"title":119,"path":120,"stem":121,"icon":69},"Client Sync","\u002Flogging\u002Fbetter-auth\u002Fclient-sync","2.logging\u002F7.better-auth\u002F04.client-sync",{"title":123,"path":124,"stem":125,"icon":126},"Performance","\u002Flogging\u002Fbetter-auth\u002Fperformance","2.logging\u002F7.better-auth\u002F05.performance","i-lucide-gauge",{"title":128,"icon":129,"path":130,"stem":131,"children":132,"page":34},"Audit Logs","i-lucide-shield-check","\u002Flogging\u002Faudit","2.logging\u002F8.audit",[133,136,141,146,151,155],{"title":41,"path":134,"stem":135,"icon":44},"\u002Flogging\u002Faudit\u002Foverview","2.logging\u002F8.audit\u002F01.overview",{"title":137,"path":138,"stem":139,"icon":140},"Schema","\u002Flogging\u002Faudit\u002Fschema","2.logging\u002F8.audit\u002F02.schema","i-lucide-file-text",{"title":142,"path":143,"stem":144,"icon":145},"Recording","\u002Flogging\u002Faudit\u002Frecording","2.logging\u002F8.audit\u002F03.recording","i-lucide-pen-line",{"title":147,"path":148,"stem":149,"icon":150},"Drains","\u002Flogging\u002Faudit\u002Fpipeline","2.logging\u002F8.audit\u002F04.pipeline","i-lucide-link",{"title":152,"path":153,"stem":154,"icon":129},"Compliance","\u002Flogging\u002Faudit\u002Fcompliance","2.logging\u002F8.audit\u002F05.compliance",{"title":156,"path":157,"stem":158,"icon":64},"Recipes","\u002Flogging\u002Faudit\u002Frecipes","2.logging\u002F8.audit\u002F06.recipes",{"title":160,"path":161,"stem":162,"children":163,"page":34},"Core Concepts","\u002Fcore-concepts","3.core-concepts",[164,169,174,179,184,188,191,196],{"title":165,"path":166,"stem":167,"icon":168},"Lifecycle","\u002Fcore-concepts\u002Flifecycle","3.core-concepts\u002F0.lifecycle","i-lucide-arrow-right-left",{"title":170,"path":171,"stem":172,"icon":173},"Configuration","\u002Fcore-concepts\u002Fconfiguration","3.core-concepts\u002F1.configuration","i-lucide-settings",{"title":175,"path":176,"stem":177,"icon":178},"Sampling","\u002Fcore-concepts\u002Fsampling","3.core-concepts\u002F2.sampling","i-lucide-filter",{"title":180,"path":181,"stem":182,"icon":183},"Typed Fields","\u002Fcore-concepts\u002Ftyped-fields","3.core-concepts\u002F3.typed-fields","i-simple-icons-typescript",{"title":185,"path":186,"stem":187,"icon":129},"Best Practices","\u002Fcore-concepts\u002Fbest-practices","3.core-concepts\u002F4.best-practices",{"title":123,"path":189,"stem":190,"icon":126},"\u002Fcore-concepts\u002Fperformance","3.core-concepts\u002F5.performance",{"title":192,"path":193,"stem":194,"icon":195},"Vite Plugin","\u002Fcore-concepts\u002Fvite-plugin","3.core-concepts\u002F6.vite-plugin","i-custom-vite",{"title":197,"path":198,"stem":199,"icon":200},"Auto-Redaction","\u002Fcore-concepts\u002Fredaction","3.core-concepts\u002F7.redaction","i-lucide-eye-off",{"title":202,"path":203,"stem":204,"children":205,"page":34},"Frameworks","\u002Fframeworks","4.frameworks",[206,210,215,220,225,230,235,240,245,250,255,260,265,270,274,279,284],{"title":41,"path":207,"stem":208,"icon":209},"\u002Fframeworks\u002Foverview","4.frameworks\u002F00.overview","i-lucide-layout-grid",{"title":211,"path":212,"stem":213,"icon":214},"Nuxt","\u002Fframeworks\u002Fnuxt","4.frameworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":216,"path":217,"stem":218,"icon":219},"Next.js","\u002Fframeworks\u002Fnextjs","4.frameworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":221,"path":222,"stem":223,"icon":224},"SvelteKit","\u002Fframeworks\u002Fsveltekit","4.frameworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":226,"path":227,"stem":228,"icon":229},"Nitro","\u002Fframeworks\u002Fnitro","4.frameworks\u002F04.nitro","i-custom-nitro",{"title":231,"path":232,"stem":233,"icon":234},"TanStack Start","\u002Fframeworks\u002Ftanstack-start","4.frameworks\u002F05.tanstack-start","i-custom-tanstack",{"title":236,"path":237,"stem":238,"icon":239},"NestJS","\u002Fframeworks\u002Fnestjs","4.frameworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":241,"path":242,"stem":243,"icon":244},"Express","\u002Fframeworks\u002Fexpress","4.frameworks\u002F07.express","i-simple-icons-express",{"title":246,"path":247,"stem":248,"icon":249},"Hono","\u002Fframeworks\u002Fhono","4.frameworks\u002F08.hono","i-simple-icons-hono",{"title":251,"path":252,"stem":253,"icon":254},"Fastify","\u002Fframeworks\u002Ffastify","4.frameworks\u002F09.fastify","i-simple-icons-fastify",{"title":256,"path":257,"stem":258,"icon":259},"Elysia","\u002Fframeworks\u002Felysia","4.frameworks\u002F10.elysia","i-custom-elysia",{"title":261,"path":262,"stem":263,"icon":264},"React Router","\u002Fframeworks\u002Freact-router","4.frameworks\u002F11.react-router","i-custom-reactrouter",{"title":266,"path":267,"stem":268,"icon":269},"Cloudflare Workers","\u002Fframeworks\u002Fcloudflare-workers","4.frameworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":271,"path":272,"stem":273,"icon":183},"Standalone","\u002Fframeworks\u002Fstandalone","4.frameworks\u002F13.standalone",{"title":275,"path":276,"stem":277,"icon":278},"Astro","\u002Fframeworks\u002Fastro","4.frameworks\u002F14.astro","i-simple-icons-astro",{"title":280,"path":281,"stem":282,"icon":283},"AWS Lambda","\u002Fframeworks\u002Faws-lambda","4.frameworks\u002F16.aws-lambda","i-custom-lambda",{"title":285,"path":286,"stem":287,"icon":288},"Custom Integration","\u002Fframeworks\u002Fcustom-integration","4.frameworks\u002F17.custom-integration","i-lucide-puzzle",{"title":290,"path":291,"stem":292,"children":293,"page":34},"Build on top","\u002Fbuild-on-top","5.build-on-top",[294,297,325,346,373,400,428],{"title":41,"path":295,"stem":296,"icon":54},"\u002Fbuild-on-top\u002Foverview","5.build-on-top\u002F0.overview",{"title":298,"path":299,"stem":300,"children":301,"page":34},"Observers","\u002Fbuild-on-top\u002Fobservers","5.build-on-top\u002Fobservers",[302,306,311,316,321],{"title":41,"path":303,"stem":304,"icon":305},"\u002Fbuild-on-top\u002Fobservers\u002Foverview","5.build-on-top\u002Fobservers\u002F1.overview","i-lucide-eye",{"title":307,"path":308,"stem":309,"icon":310},"Stream API","\u002Fbuild-on-top\u002Fobservers\u002Fin-process-stream","5.build-on-top\u002Fobservers\u002F2.in-process-stream","i-lucide-radio-tower",{"title":312,"path":313,"stem":314,"icon":315},"Stream server","\u002Fbuild-on-top\u002Fobservers\u002Fstream-server","5.build-on-top\u002Fobservers\u002F3.stream-server","i-lucide-radio",{"title":317,"path":318,"stem":319,"icon":320},"FS reader","\u002Fbuild-on-top\u002Fobservers\u002Ffs-reader","5.build-on-top\u002Fobservers\u002F4.fs-reader","i-lucide-folder-search",{"title":156,"path":322,"stem":323,"icon":324},"\u002Fbuild-on-top\u002Fobservers\u002Fconsumer-recipes","5.build-on-top\u002Fobservers\u002F5.consumer-recipes","i-lucide-chef-hat",{"title":326,"path":327,"stem":328,"children":329,"page":34},"Pipeline","\u002Fbuild-on-top\u002Fpipeline","5.build-on-top\u002Fpipeline",[330,334,338,342],{"title":41,"path":331,"stem":332,"icon":333},"\u002Fbuild-on-top\u002Fpipeline\u002Foverview","5.build-on-top\u002Fpipeline\u002F1.overview","i-lucide-workflow",{"title":335,"path":336,"stem":337,"icon":288},"Plugins","\u002Fbuild-on-top\u002Fpipeline\u002Fplugins","5.build-on-top\u002Fpipeline\u002F2.plugins",{"title":339,"path":340,"stem":341,"icon":28},"Custom enrichers","\u002Fbuild-on-top\u002Fpipeline\u002Fcustom-enrichers","5.build-on-top\u002Fpipeline\u002F3.custom-enrichers",{"title":343,"path":344,"stem":345,"icon":178},"Tail sampling","\u002Fbuild-on-top\u002Fpipeline\u002Ftail-sampling","5.build-on-top\u002Fpipeline\u002F4.tail-sampling",{"title":347,"path":348,"stem":349,"children":350,"page":34},"Scenarios","\u002Fbuild-on-top\u002Fscenarios","5.build-on-top\u002Fscenarios",[351,355,359,364,368],{"title":41,"path":352,"stem":353,"icon":354},"\u002Fbuild-on-top\u002Fscenarios\u002Foverview","5.build-on-top\u002Fscenarios\u002F0.overview","i-lucide-clipboard-list",{"title":356,"path":357,"stem":358,"icon":49},"Local debugging toolkit","\u002Fbuild-on-top\u002Fscenarios\u002Flocal-debugging-toolkit","5.build-on-top\u002Fscenarios\u002F1.local-debugging-toolkit",{"title":360,"path":361,"stem":362,"icon":363},"Tenant-aware logging","\u002Fbuild-on-top\u002Fscenarios\u002Ftenant-aware-logging","5.build-on-top\u002Fscenarios\u002F2.tenant-aware-logging","i-lucide-users",{"title":365,"path":366,"stem":367,"icon":129},"Compliance audit","\u002Fbuild-on-top\u002Fscenarios\u002Fcompliance-audit","5.build-on-top\u002Fscenarios\u002F3.compliance-audit",{"title":369,"path":370,"stem":371,"icon":372},"Cross-app error vocab","\u002Fbuild-on-top\u002Fscenarios\u002Fcross-app-error-vocab","5.build-on-top\u002Fscenarios\u002F4.cross-app-error-vocab","i-lucide-book",{"title":374,"path":375,"stem":376,"children":377,"page":34},"Shared packages","\u002Fbuild-on-top\u002Fshared","5.build-on-top\u002Fshared",[378,382,386,391,395],{"title":41,"path":379,"stem":380,"icon":381},"\u002Fbuild-on-top\u002Fshared\u002Foverview","5.build-on-top\u002Fshared\u002F1.overview","i-lucide-package",{"title":383,"path":384,"stem":385,"icon":381},"Catalogs as packages","\u002Fbuild-on-top\u002Fshared\u002Fcatalogs-as-packages","5.build-on-top\u002Fshared\u002F2.catalogs-as-packages",{"title":387,"path":388,"stem":389,"icon":390},"Drains as packages","\u002Fbuild-on-top\u002Fshared\u002Fdrains-as-packages","5.build-on-top\u002Fshared\u002F3.drains-as-packages","i-lucide-package-2",{"title":392,"path":393,"stem":394,"icon":28},"Enrichers as packages","\u002Fbuild-on-top\u002Fshared\u002Fenrichers-as-packages","5.build-on-top\u002Fshared\u002F4.enrichers-as-packages",{"title":396,"path":397,"stem":398,"icon":399},"Integration as package","\u002Fbuild-on-top\u002Fshared\u002Fintegration-as-package","5.build-on-top\u002Fshared\u002F5.integration-as-package","i-lucide-package-check",{"title":401,"path":402,"stem":403,"children":404,"page":34},"Sinks","\u002Fbuild-on-top\u002Fsinks","5.build-on-top\u002Fsinks",[405,409,414,418,423],{"title":41,"path":406,"stem":407,"icon":408},"\u002Fbuild-on-top\u002Fsinks\u002Foverview","5.build-on-top\u002Fsinks\u002F1.overview","i-lucide-arrow-up-from-line",{"title":410,"path":411,"stem":412,"icon":413},"Custom drains","\u002Fbuild-on-top\u002Fsinks\u002Fcustom-drains","5.build-on-top\u002Fsinks\u002F2.custom-drains","i-lucide-code-2",{"title":415,"path":416,"stem":417,"icon":333},"Drain pipeline","\u002Fbuild-on-top\u002Fsinks\u002Fdrain-pipeline","5.build-on-top\u002Fsinks\u002F3.drain-pipeline",{"title":419,"path":420,"stem":421,"icon":422},"Identity headers","\u002Fbuild-on-top\u002Fsinks\u002Fidentity-headers","5.build-on-top\u002Fsinks\u002F4.identity-headers","i-lucide-fingerprint",{"title":424,"path":425,"stem":426,"icon":427},"Fanout","\u002Fbuild-on-top\u002Fsinks\u002Ffanout-and-multi-drain","5.build-on-top\u002Fsinks\u002F5.fanout-and-multi-drain","i-lucide-share-2",{"title":429,"path":430,"stem":431,"children":432,"page":34},"Sources","\u002Fbuild-on-top\u002Fsources","5.build-on-top\u002Fsources",[433,437,441],{"title":41,"path":434,"stem":435,"icon":436},"\u002Fbuild-on-top\u002Fsources\u002Foverview","5.build-on-top\u002Fsources\u002F1.overview","i-lucide-arrow-down-to-line",{"title":438,"path":439,"stem":440,"icon":288},"Custom framework","\u002Fbuild-on-top\u002Fsources\u002Fcustom-framework","5.build-on-top\u002Fsources\u002F2.custom-framework",{"title":442,"path":443,"stem":444,"icon":445},"Middleware toolkit","\u002Fbuild-on-top\u002Fsources\u002Fmiddleware-toolkit","5.build-on-top\u002Fsources\u002F3.middleware-toolkit","i-lucide-wrench",{"title":447,"path":448,"stem":449,"children":450,"page":34},"Adapters","\u002Fadapters","6.adapters",[451,454,494,509],{"title":41,"path":452,"stem":453,"icon":44},"\u002Fadapters\u002Foverview","6.adapters\u002F01.overview",{"title":455,"path":456,"stem":457,"children":458,"page":34},"Cloud destinations","\u002Fadapters\u002Fcloud","6.adapters\u002F02.cloud",[459,464,469,474,479,484,489],{"title":460,"path":461,"stem":462,"icon":463},"Axiom","\u002Fadapters\u002Fcloud\u002Faxiom","6.adapters\u002F02.cloud\u002F01.axiom","i-custom-axiom",{"title":465,"path":466,"stem":467,"icon":468},"OTLP","\u002Fadapters\u002Fcloud\u002Fotlp","6.adapters\u002F02.cloud\u002F02.otlp","i-simple-icons-opentelemetry",{"title":470,"path":471,"stem":472,"icon":473},"PostHog","\u002Fadapters\u002Fcloud\u002Fposthog","6.adapters\u002F02.cloud\u002F03.posthog","i-simple-icons-posthog",{"title":475,"path":476,"stem":477,"icon":478},"Sentry","\u002Fadapters\u002Fcloud\u002Fsentry","6.adapters\u002F02.cloud\u002F04.sentry","i-simple-icons-sentry",{"title":480,"path":481,"stem":482,"icon":483},"Better Stack","\u002Fadapters\u002Fcloud\u002Fbetter-stack","6.adapters\u002F02.cloud\u002F05.better-stack","i-simple-icons-betterstack",{"title":485,"path":486,"stem":487,"icon":488},"Datadog","\u002Fadapters\u002Fcloud\u002Fdatadog","6.adapters\u002F02.cloud\u002F06.datadog","i-simple-icons-datadog",{"title":490,"path":491,"stem":492,"icon":493},"HyperDX","\u002Fadapters\u002Fcloud\u002Fhyperdx","6.adapters\u002F02.cloud\u002F07.hyperdx","i-custom-hyperdx",{"title":495,"path":496,"stem":497,"children":498,"page":34},"Self-hosted","\u002Fadapters\u002Fself-hosted","6.adapters\u002F03.self-hosted",[499,504],{"title":500,"path":501,"stem":502,"icon":503},"File System","\u002Fadapters\u002Fself-hosted\u002Ffs","6.adapters\u002F03.self-hosted\u002F01.fs","i-lucide-hard-drive",{"title":505,"path":506,"stem":507,"icon":508},"NuxtHub","\u002Fadapters\u002Fself-hosted\u002Fnuxthub","6.adapters\u002F03.self-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":510,"path":511,"stem":512,"children":513,"page":34},"Building blocks","\u002Fadapters\u002Fbuilding-blocks","6.adapters\u002F04.building-blocks",[514,517,522,526],{"title":326,"path":515,"stem":516,"icon":333},"\u002Fadapters\u002Fbuilding-blocks\u002Fpipeline","6.adapters\u002F04.building-blocks\u002F01.pipeline",{"title":518,"path":519,"stem":520,"icon":521},"HTTP","\u002Fadapters\u002Fbuilding-blocks\u002Fhttp","6.adapters\u002F04.building-blocks\u002F02.http","i-lucide-globe",{"title":523,"path":524,"stem":525,"icon":83},"Custom Adapters","\u002Fadapters\u002Fbuilding-blocks\u002Fcustom","6.adapters\u002F04.building-blocks\u002F03.custom",{"title":527,"path":528,"stem":529,"icon":530},"Toolkit","\u002Fadapters\u002Fbuilding-blocks\u002Ftoolkit","6.adapters\u002F04.building-blocks\u002F04.toolkit","i-lucide-blocks",{"title":532,"path":533,"stem":534,"children":535,"page":34},"Enrichers","\u002Fenrichers","7.enrichers",[536,539,543],{"title":41,"path":537,"stem":538,"icon":28},"\u002Fenrichers\u002Foverview","7.enrichers\u002F1.overview",{"title":540,"path":541,"stem":542,"icon":288},"Built-in","\u002Fenrichers\u002Fbuilt-in","7.enrichers\u002F2.built-in",{"title":544,"path":545,"stem":546,"icon":83},"Custom","\u002Fenrichers\u002Fcustom","7.enrichers\u002F3.custom",{"id":548,"title":419,"body":549,"description":984,"extension":985,"links":986,"meta":987,"navigation":988,"path":420,"seo":989,"stem":421,"__hash__":990},"docs\u002F5.build-on-top\u002Fsinks\u002F4.identity-headers.md",{"type":550,"value":551,"toc":979},"minimark",[552,556,623,637,642,655,659,666,754,757,767,961,975],[553,554,555],"p",{},"All built-in adapters send two identity headers on every outgoing request:",[557,558,559,572],"table",{},[560,561,562],"thead",{},[563,564,565,569],"tr",{},[566,567,568],"th",{},"Header",[566,570,571],{},"Value",[573,574,575,590],"tbody",{},[563,576,577,584],{},[578,579,580],"td",{},[581,582,583],"code",{},"User-Agent",[578,585,586,589],{},[581,587,588],{},"evlog\u002F\u003Cversion>"," (Node \u002F server runtimes only — browsers strip this header)",[563,591,592,597],{},[578,593,594],{},[581,595,596],{},"X-Evlog-Source",[578,598,599,600,603,604,603,607,603,610,603,613,603,616,603,619,622],{},"The adapter name (",[581,601,602],{},"axiom",", ",[581,605,606],{},"datadog",[581,608,609],{},"otlp",[581,611,612],{},"posthog",[581,614,615],{},"sentry",[581,617,618],{},"better-stack",[581,620,621],{},"client",", ...)",[553,624,625,626,629,630,633,634,636],{},"The browser-side ",[581,627,628],{},"evlog\u002Fhttp"," drain (used by the client transport) sets ",[581,631,632],{},"X-Evlog-Source: client"," instead, since browsers cannot override ",[581,635,583],{},".",[638,639,641],"h2",{"id":640},"why","Why",[643,644,645,649,652],"ul",{},[646,647,648],"li",{},"Quickly distinguish evlog traffic from other clients in the receiving system's logs.",[646,650,651],{},"Track adapter usage \u002F version drift centrally.",[646,653,654],{},"Identify the source when debugging a specific drain.",[638,656,658],{"id":657},"reading-the-version","Reading the version",[553,660,661,662,665],{},"Both constants are exported from ",[581,663,664],{},"evlog\u002Ftoolkit",":",[667,668,673],"pre",{"className":669,"code":670,"language":671,"meta":672,"style":672},"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","",[581,674,675,713,720,739],{"__ignoreMap":672},[676,677,680,684,688,692,695,698,701,704,707,710],"span",{"class":678,"line":679},"line",1,[676,681,683],{"class":682},"s7zQu","import",[676,685,687],{"class":686},"sMK4o"," {",[676,689,691],{"class":690},"sTEyZ"," EVLOG_USER_AGENT",[676,693,694],{"class":686},",",[676,696,697],{"class":690}," EVLOG_VERSION",[676,699,700],{"class":686}," }",[676,702,703],{"class":682}," from",[676,705,706],{"class":686}," '",[676,708,664],{"class":709},"sfazB",[676,711,712],{"class":686},"'\n",[676,714,716],{"class":678,"line":715},2,[676,717,719],{"emptyLinePlaceholder":718},true,"\n",[676,721,723,726,728,732,735],{"class":678,"line":722},3,[676,724,725],{"class":690},"console",[676,727,636],{"class":686},[676,729,731],{"class":730},"s2Zo4","log",[676,733,734],{"class":690},"(EVLOG_VERSION)    ",[676,736,738],{"class":737},"sHwdD","\u002F\u002F → \"2.16.0\"\n",[676,740,742,744,746,748,751],{"class":678,"line":741},4,[676,743,725],{"class":690},[676,745,636],{"class":686},[676,747,731],{"class":730},[676,749,750],{"class":690},"(EVLOG_USER_AGENT) ",[676,752,753],{"class":737},"\u002F\u002F → \"evlog\u002F2.16.0\"\n",[638,755,410],{"id":756},"custom-drains",[553,758,759,760,763,764,766],{},"When you build a drain on top of ",[581,761,762],{},"httpPost"," from ",[581,765,664],{},", identity headers are injected automatically. To override or suppress them:",[667,768,770],{"className":669,"code":769,"language":671,"meta":672,"style":672},"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",[581,771,772,791,795,808,827,856,873,887,904,923,943,952],{"__ignoreMap":672},[676,773,774,776,778,781,783,785,787,789],{"class":678,"line":679},[676,775,683],{"class":682},[676,777,687],{"class":686},[676,779,780],{"class":690}," httpPost",[676,782,700],{"class":686},[676,784,703],{"class":682},[676,786,706],{"class":686},[676,788,664],{"class":709},[676,790,712],{"class":686},[676,792,793],{"class":678,"line":715},[676,794,719],{"emptyLinePlaceholder":718},[676,796,797,800,802,805],{"class":678,"line":722},[676,798,799],{"class":682},"await",[676,801,780],{"class":730},[676,803,804],{"class":690},"(",[676,806,807],{"class":686},"{\n",[676,809,810,814,816,818,821,824],{"class":678,"line":741},[676,811,813],{"class":812},"swJcz","  url",[676,815,665],{"class":686},[676,817,706],{"class":686},[676,819,820],{"class":709},"https:\u002F\u002Fmy-platform.example.com\u002Fingest",[676,822,823],{"class":686},"'",[676,825,826],{"class":686},",\n",[676,828,830,833,835,837,839,842,844,846,848,851,853],{"class":678,"line":829},5,[676,831,832],{"class":812},"  headers",[676,834,665],{"class":686},[676,836,687],{"class":686},[676,838,706],{"class":686},[676,840,841],{"class":812},"Content-Type",[676,843,823],{"class":686},[676,845,665],{"class":686},[676,847,706],{"class":686},[676,849,850],{"class":709},"application\u002Fjson",[676,852,823],{"class":686},[676,854,855],{"class":686}," },\n",[676,857,859,862,864,866,869,871],{"class":678,"line":858},6,[676,860,861],{"class":812},"  body",[676,863,665],{"class":686},[676,865,706],{"class":686},[676,867,868],{"class":709},"[]",[676,870,823],{"class":686},[676,872,826],{"class":686},[676,874,876,879,881,885],{"class":678,"line":875},7,[676,877,878],{"class":812},"  timeout",[676,880,665],{"class":686},[676,882,884],{"class":883},"sbssI"," 5000",[676,886,826],{"class":686},[676,888,890,893,895,897,900,902],{"class":678,"line":889},8,[676,891,892],{"class":812},"  label",[676,894,665],{"class":686},[676,896,706],{"class":686},[676,898,899],{"class":709},"my-platform",[676,901,823],{"class":686},[676,903,826],{"class":686},[676,905,907,910,912,914,916,918,920],{"class":678,"line":906},9,[676,908,909],{"class":812},"  source",[676,911,665],{"class":686},[676,913,706],{"class":686},[676,915,899],{"class":709},[676,917,823],{"class":686},[676,919,694],{"class":686},[676,921,922],{"class":737},"           \u002F\u002F sent as X-Evlog-Source\n",[676,924,926,929,931,933,936,938,940],{"class":678,"line":925},10,[676,927,928],{"class":812},"  userAgent",[676,930,665],{"class":686},[676,932,706],{"class":686},[676,934,935],{"class":709},"my-fork\u002F1.0",[676,937,823],{"class":686},[676,939,694],{"class":686},[676,941,942],{"class":737},"        \u002F\u002F overrides the default User-Agent\n",[676,944,946,949],{"class":678,"line":945},11,[676,947,948],{"class":737},"  \u002F\u002F userAgent: false,",[676,950,951],{"class":737},"             \u002F\u002F suppress the header entirely\n",[676,953,955,958],{"class":678,"line":954},12,[676,956,957],{"class":686},"}",[676,959,960],{"class":690},")\n",[553,962,963,964,967,968,971,972,636],{},"Adapters built with ",[581,965,966],{},"defineHttpDrain()"," automatically pass the drain ",[581,969,970],{},"name"," as ",[581,973,974],{},"source",[976,977,978],"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":672,"searchDepth":715,"depth":715,"links":980},[981,982,983],{"id":640,"depth":715,"text":641},{"id":657,"depth":715,"text":658},{"id":756,"depth":715,"text":410},"Every drain request sent by evlog is tagged with a User-Agent and an X-Evlog-Source header so receivers can identify the traffic.","md",null,{},{"title":419,"icon":422},{"title":419,"description":984},"YG6vSFuBnOmfc1184B3qvphAhdQjrhw-HoO9SnOEXAg",[992,994],{"title":415,"path":416,"stem":417,"description":993,"icon":333,"children":-1},"createDrainPipeline wraps any drain in batch + retry + buffer overflow protection. Required for non-trivial production volume; supports fanout to multiple drains in parallel.",{"title":424,"path":425,"stem":426,"description":995,"icon":427,"children":-1},"Send the same wide event to several destinations in parallel — Axiom plus Datadog plus Sentry plus the local fs drain — through a single pipeline.",1778338251485]