[{"data":1,"prerenderedAt":3164},["ShallowReactive",2],{"navigation_docs":3,"-integrate-frameworks-fastify":534,"-integrate-frameworks-fastify-surround":3159},[4,30,80,128,308,440,499],{"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],{"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,"children":132,"page":29},"Integrate","\u002Fintegrate","4.integrate",[133,137,220],{"title":36,"path":134,"stem":135,"icon":136},"\u002Fintegrate\u002Foverview","4.integrate\u002F0.overview","i-lucide-plug",{"title":138,"path":139,"stem":140,"children":141,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","4.integrate\u002Fadapters",[142,145,175,200],{"title":36,"path":143,"stem":144,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","4.integrate\u002Fadapters\u002F01.overview",{"title":146,"path":147,"stem":148,"children":149,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","4.integrate\u002Fadapters\u002Fcloud",[150,155,160,165,170],{"title":151,"path":152,"stem":153,"icon":154},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","4.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":156,"path":157,"stem":158,"icon":159},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","4.integrate\u002Fadapters\u002Fcloud\u002F02.posthog","i-simple-icons-posthog",{"title":161,"path":162,"stem":163,"icon":164},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","4.integrate\u002Fadapters\u002Fcloud\u002F03.sentry","i-simple-icons-sentry",{"title":166,"path":167,"stem":168,"icon":169},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","4.integrate\u002Fadapters\u002Fcloud\u002F04.better-stack","i-simple-icons-betterstack",{"title":171,"path":172,"stem":173,"icon":174},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","4.integrate\u002Fadapters\u002Fcloud\u002F05.datadog","i-simple-icons-datadog",{"title":176,"path":177,"stem":178,"children":179,"page":29},"Cloud or Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fhybrid","4.integrate\u002Fadapters\u002Fhybrid",[180,185,190,195],{"title":181,"path":182,"stem":183,"icon":184},"Grafana Loki","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Floki","4.integrate\u002Fadapters\u002Fhybrid\u002F01.loki","i-simple-icons-grafana",{"title":186,"path":187,"stem":188,"icon":189},"ClickHouse","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fclickhouse","4.integrate\u002Fadapters\u002Fhybrid\u002F02.clickhouse","i-simple-icons-clickhouse",{"title":191,"path":192,"stem":193,"icon":194},"OTLP","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fotlp","4.integrate\u002Fadapters\u002Fhybrid\u002F03.otlp","i-simple-icons-opentelemetry",{"title":196,"path":197,"stem":198,"icon":199},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fhyperdx","4.integrate\u002Fadapters\u002Fhybrid\u002F04.hyperdx","i-custom-hyperdx",{"title":201,"path":202,"stem":203,"children":204,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","4.integrate\u002Fadapters\u002Fself-hosted",[205,210,215],{"title":206,"path":207,"stem":208,"icon":209},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","4.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":211,"path":212,"stem":213,"icon":214},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","4.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":216,"path":217,"stem":218,"icon":219},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","4.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":221,"path":222,"stem":223,"children":224,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","4.integrate\u002Fframeworks",[225,229,234,239,244,249,254,259,264,269,274,279,284,289,293,298,303],{"title":36,"path":226,"stem":227,"icon":228},"\u002Fintegrate\u002Fframeworks\u002Foverview","4.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":230,"path":231,"stem":232,"icon":233},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","4.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":235,"path":236,"stem":237,"icon":238},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","4.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":240,"path":241,"stem":242,"icon":243},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","4.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":245,"path":246,"stem":247,"icon":248},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","4.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":250,"path":251,"stem":252,"icon":253},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","4.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":255,"path":256,"stem":257,"icon":258},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","4.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":260,"path":261,"stem":262,"icon":263},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","4.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":265,"path":266,"stem":267,"icon":268},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","4.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":270,"path":271,"stem":272,"icon":273},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","4.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":275,"path":276,"stem":277,"icon":278},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","4.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":280,"path":281,"stem":282,"icon":283},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","4.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":285,"path":286,"stem":287,"icon":288},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","4.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":290,"path":291,"stem":292,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","4.integrate\u002Fframeworks\u002F13.standalone",{"title":294,"path":295,"stem":296,"icon":297},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","4.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":299,"path":300,"stem":301,"icon":302},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","4.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":304,"path":305,"stem":306,"icon":307},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","4.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":309,"path":310,"stem":311,"children":312,"page":29},"Use Cases","\u002Fuse-cases","5.use-cases",[313,316,321,350,377,409,430,435],{"title":36,"path":314,"stem":315,"icon":102},"\u002Fuse-cases\u002Foverview","5.use-cases\u002F0.overview",{"title":317,"path":318,"stem":319,"icon":320},"Client Logging","\u002Fuse-cases\u002Fclient-logging","5.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":322,"icon":323,"path":324,"stem":325,"children":326,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","5.use-cases\u002F2.ai-sdk",[327,330,335,340,345],{"title":36,"path":328,"stem":329,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","5.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":331,"path":332,"stem":333,"icon":334},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","5.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":336,"path":337,"stem":338,"icon":339},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","5.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":341,"path":342,"stem":343,"icon":344},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","5.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":346,"path":347,"stem":348,"icon":349},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","5.use-cases\u002F2.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":351,"icon":352,"path":353,"stem":354,"children":355,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","5.use-cases\u002F3.better-auth",[356,359,364,369,373],{"title":36,"path":357,"stem":358,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","5.use-cases\u002F3.better-auth\u002F01.overview",{"title":360,"path":361,"stem":362,"icon":363},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","5.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":365,"path":366,"stem":367,"icon":368},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","5.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":370,"path":371,"stem":372,"icon":320},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","5.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":374,"path":375,"stem":376,"icon":107},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","5.use-cases\u002F3.better-auth\u002F05.performance",{"title":378,"icon":379,"path":380,"stem":381,"children":382,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","5.use-cases\u002F4.audit",[383,386,391,396,401,405],{"title":36,"path":384,"stem":385,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","5.use-cases\u002F4.audit\u002F01.overview",{"title":387,"path":388,"stem":389,"icon":390},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","5.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":392,"path":393,"stem":394,"icon":395},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","5.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":397,"path":398,"stem":399,"icon":400},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","5.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":402,"path":403,"stem":404,"icon":379},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","5.use-cases\u002F4.audit\u002F05.compliance",{"title":406,"path":407,"stem":408,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","5.use-cases\u002F4.audit\u002F06.recipes",{"title":346,"icon":107,"path":410,"stem":411,"children":412,"page":29},"\u002Fuse-cases\u002Ftelemetry","5.use-cases\u002F4.telemetry",[413,416,421,426],{"title":36,"path":414,"stem":415,"icon":39},"\u002Fuse-cases\u002Ftelemetry\u002Foverview","5.use-cases\u002F4.telemetry\u002F01.overview",{"title":417,"path":418,"stem":419,"icon":420},"Setup","\u002Fuse-cases\u002Ftelemetry\u002Fsetup","5.use-cases\u002F4.telemetry\u002F02.setup","i-lucide-wrench",{"title":422,"path":423,"stem":424,"icon":425},"Ingest","\u002Fuse-cases\u002Ftelemetry\u002Fingest","5.use-cases\u002F4.telemetry\u002F03.ingest","i-lucide-server",{"title":427,"path":428,"stem":429,"icon":79},"Reference","\u002Fuse-cases\u002Ftelemetry\u002Freference","5.use-cases\u002F4.telemetry\u002F04.reference",{"title":431,"path":432,"stem":433,"icon":434},"Enrichers","\u002Fuse-cases\u002Fenrichers","5.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":436,"path":437,"stem":438,"icon":439},"eve","\u002Fuse-cases\u002Feve","5.use-cases\u002F5.eve","i-custom-eve",{"title":441,"path":442,"stem":443,"children":444,"page":29},"Extend","\u002Fextend","6.extend",[445,449,454,459,463,468,472,476,480,484,489,494],{"title":36,"path":446,"stem":447,"icon":448},"\u002Fextend\u002Foverview","6.extend\u002F0.overview","i-lucide-blocks",{"title":450,"path":451,"stem":452,"icon":453},"Stream","\u002Fextend\u002Fstream","6.extend\u002F1.stream","i-lucide-radio-tower",{"title":455,"path":456,"stem":457,"icon":458},"Custom framework","\u002Fextend\u002Fcustom-framework","6.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":460,"path":461,"stem":462,"icon":453},"Diagnostics channel","\u002Fextend\u002Fdiagnostics-channel","6.extend\u002F11.diagnostics-channel",{"title":464,"path":465,"stem":466,"icon":467},"FS reader","\u002Fextend\u002Ffs-reader","6.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":406,"path":469,"stem":470,"icon":471},"\u002Fextend\u002Fconsumer-recipes","6.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":473,"path":474,"stem":475,"icon":448},"Plugins","\u002Fextend\u002Fplugins","6.extend\u002F4.plugins",{"title":477,"path":478,"stem":479,"icon":434},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","6.extend\u002F5.custom-enrichers",{"title":481,"path":482,"stem":483,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","6.extend\u002F6.tail-sampling",{"title":485,"path":486,"stem":487,"icon":488},"Identity headers","\u002Fextend\u002Fidentity-headers","6.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":490,"path":491,"stem":492,"icon":493},"Custom drains","\u002Fextend\u002Fcustom-drains","6.extend\u002F8.custom-drains","i-lucide-share-2",{"title":495,"path":496,"stem":497,"icon":498},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","6.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":427,"path":500,"stem":501,"children":502,"page":29},"\u002Freference","7.reference",[503,508,511,516,520,525,529],{"title":504,"path":505,"stem":506,"icon":507},"Configuration","\u002Freference\u002Fconfiguration","7.reference\u002F1.configuration","i-lucide-settings",{"title":374,"path":509,"stem":510,"icon":107},"\u002Freference\u002Fperformance","7.reference\u002F2.performance",{"title":512,"path":513,"stem":514,"icon":515},"Vite Plugin","\u002Freference\u002Fvite-plugin","7.reference\u002F3.vite-plugin","i-custom-vite",{"title":517,"path":518,"stem":519,"icon":379},"Best Practices","\u002Freference\u002Fbest-practices","7.reference\u002F4.best-practices",{"title":521,"path":522,"stem":523,"icon":524},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","7.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":526,"path":527,"stem":528,"icon":434},"Agent Skills","\u002Freference\u002Fagent-skills","7.reference\u002F6.agent-skills",{"title":530,"path":531,"stem":532,"icon":533},"Cost","\u002Freference\u002Fcost","7.reference\u002F7.cost","i-lucide-receipt",{"id":535,"title":270,"body":536,"description":3149,"extension":3150,"links":3151,"meta":3155,"navigation":3156,"path":271,"seo":3157,"stem":272,"__hash__":3158},"docs\u002F4.integrate\u002Fframeworks\u002F09.fastify.md",{"type":537,"value":538,"toc":3130},"minimark",[539,556,603,607,612,692,696,1032,1056,1065,1068,1071,1373,1376,1440,1443,1449,1632,1750,1765,1772,1786,1959,1963,1984,2307,2310,2357,2360,2370,2374,2377,2544,2548,2555,2748,2759,2763,2769,2873,2877,2887,3030,3034,3075,3083,3093,3097,3126],[540,541,542,543,547,548,551,552,555],"p",{},"The ",[544,545,546],"code",{},"evlog\u002Ffastify"," plugin auto-creates a request-scoped logger accessible via ",[544,549,550],{},"request.log"," and ",[544,553,554],{},"useLogger()",", emitting a wide event when the response completes.",[557,558,561,564,589],"prompt",{":actions":559,"description":560,"icon":273},"[\"copy\",\"cursor\",\"claude\"]","Set up evlog in my Fastify app",[540,562,563],{},"Set up evlog in my Fastify app.",[565,566,567,571,574,577,580,583,586],"ul",{},[568,569,570],"li",{},"Install evlog: pnpm add evlog",[568,572,573],{},"Call initLogger({ env: { service: 'my-api' } }) at startup",[568,575,576],{},"Alternatively, use evlog\u002Fvite plugin in vite.config.ts for auto-init (replaces initLogger)",[568,578,579],{},"Import evlog from 'evlog\u002Ffastify' and register with app.register(evlog)",[568,581,582],{},"Access the logger via request.log in route handlers or useLogger() anywhere",[568,584,585],{},"Use log.set() to accumulate context throughout the request",[568,587,588],{},"Optionally pass drain, enrich, include, and keep options when registering",[540,590,591,592,598,599],{},"Docs: ",[593,594,595],"a",{"href":595,"rel":596},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fframeworks\u002Ffastify",[597],"nofollow","\nAdapters: ",[593,600,601],{"href":601,"rel":602},"https:\u002F\u002Fwww.evlog.dev\u002Fintegrate\u002Fadapters\u002Foverview",[597],[604,605,25],"h2",{"id":606},"quick-start",[608,609,611],"h3",{"id":610},"_1-install","1. Install",[613,614,615,643,659,675],"code-group",{},[616,617,623],"pre",{"className":618,"code":619,"filename":620,"language":621,"meta":622,"style":622},"language-bash shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","pnpm add evlog fastify\n","pnpm","bash","",[544,624,625],{"__ignoreMap":622},[626,627,630,633,637,640],"span",{"class":628,"line":629},"line",1,[626,631,620],{"class":632},"sBMFI",[626,634,636],{"class":635},"sfazB"," add",[626,638,639],{"class":635}," evlog",[626,641,642],{"class":635}," fastify\n",[616,644,647],{"className":618,"code":645,"filename":646,"language":621,"meta":622,"style":622},"bun add evlog fastify\n","bun",[544,648,649],{"__ignoreMap":622},[626,650,651,653,655,657],{"class":628,"line":629},[626,652,646],{"class":632},[626,654,636],{"class":635},[626,656,639],{"class":635},[626,658,642],{"class":635},[616,660,663],{"className":618,"code":661,"filename":662,"language":621,"meta":622,"style":622},"yarn add evlog fastify\n","yarn",[544,664,665],{"__ignoreMap":622},[626,666,667,669,671,673],{"class":628,"line":629},[626,668,662],{"class":632},[626,670,636],{"class":635},[626,672,639],{"class":635},[626,674,642],{"class":635},[616,676,679],{"className":618,"code":677,"filename":678,"language":621,"meta":622,"style":622},"npm install evlog fastify\n","npm",[544,680,681],{"__ignoreMap":622},[626,682,683,685,688,690],{"class":628,"line":629},[626,684,678],{"class":632},[626,686,687],{"class":635}," install",[626,689,639],{"class":635},[626,691,642],{"class":635},[608,693,695],{"id":694},"_2-initialize-and-register-the-plugin","2. Initialize and register the plugin",[616,697,702],{"className":698,"code":699,"filename":700,"language":701,"meta":622,"style":622},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import Fastify from 'fastify'\nimport { initLogger } from 'evlog'\nimport { evlog } from 'evlog\u002Ffastify'\n\ninitLogger({\n  env: { service: 'my-api' },\n})\n\nconst app = Fastify({ logger: false })\n\nawait app.register(evlog)\n\napp.get('\u002Fhealth', async (request) => {\n  request.log.set({ route: 'health' })\n  return { ok: true }\n})\n\nawait app.listen({ port: 3000 })\n","src\u002Findex.ts","typescript",[544,703,704,727,751,770,777,790,818,827,832,866,871,889,894,936,972,991,998,1003],{"__ignoreMap":622},[626,705,706,710,714,717,721,724],{"class":628,"line":629},[626,707,709],{"class":708},"s7zQu","import",[626,711,713],{"class":712},"sTEyZ"," Fastify ",[626,715,716],{"class":708},"from",[626,718,720],{"class":719},"sMK4o"," '",[626,722,723],{"class":635},"fastify",[626,725,726],{"class":719},"'\n",[626,728,730,732,735,738,741,744,746,749],{"class":628,"line":729},2,[626,731,709],{"class":708},[626,733,734],{"class":719}," {",[626,736,737],{"class":712}," initLogger",[626,739,740],{"class":719}," }",[626,742,743],{"class":708}," from",[626,745,720],{"class":719},[626,747,748],{"class":635},"evlog",[626,750,726],{"class":719},[626,752,754,756,758,760,762,764,766,768],{"class":628,"line":753},3,[626,755,709],{"class":708},[626,757,734],{"class":719},[626,759,639],{"class":712},[626,761,740],{"class":719},[626,763,743],{"class":708},[626,765,720],{"class":719},[626,767,546],{"class":635},[626,769,726],{"class":719},[626,771,773],{"class":628,"line":772},4,[626,774,776],{"emptyLinePlaceholder":775},true,"\n",[626,778,780,784,787],{"class":628,"line":779},5,[626,781,783],{"class":782},"s2Zo4","initLogger",[626,785,786],{"class":712},"(",[626,788,789],{"class":719},"{\n",[626,791,793,797,800,802,805,807,809,812,815],{"class":628,"line":792},6,[626,794,796],{"class":795},"swJcz","  env",[626,798,799],{"class":719},":",[626,801,734],{"class":719},[626,803,804],{"class":795}," service",[626,806,799],{"class":719},[626,808,720],{"class":719},[626,810,811],{"class":635},"my-api",[626,813,814],{"class":719},"'",[626,816,817],{"class":719}," },\n",[626,819,821,824],{"class":628,"line":820},7,[626,822,823],{"class":719},"}",[626,825,826],{"class":712},")\n",[626,828,830],{"class":628,"line":829},8,[626,831,776],{"emptyLinePlaceholder":775},[626,833,835,839,842,845,848,850,853,856,858,862,864],{"class":628,"line":834},9,[626,836,838],{"class":837},"spNyl","const",[626,840,841],{"class":712}," app ",[626,843,844],{"class":719},"=",[626,846,847],{"class":782}," Fastify",[626,849,786],{"class":712},[626,851,852],{"class":719},"{",[626,854,855],{"class":795}," logger",[626,857,799],{"class":719},[626,859,861],{"class":860},"sfNiH"," false",[626,863,740],{"class":719},[626,865,826],{"class":712},[626,867,869],{"class":628,"line":868},10,[626,870,776],{"emptyLinePlaceholder":775},[626,872,874,877,880,883,886],{"class":628,"line":873},11,[626,875,876],{"class":708},"await",[626,878,879],{"class":712}," app",[626,881,882],{"class":719},".",[626,884,885],{"class":782},"register",[626,887,888],{"class":712},"(evlog)\n",[626,890,892],{"class":628,"line":891},12,[626,893,776],{"emptyLinePlaceholder":775},[626,895,897,900,902,905,907,909,912,914,917,920,923,927,930,933],{"class":628,"line":896},13,[626,898,899],{"class":712},"app",[626,901,882],{"class":719},[626,903,904],{"class":782},"get",[626,906,786],{"class":712},[626,908,814],{"class":719},[626,910,911],{"class":635},"\u002Fhealth",[626,913,814],{"class":719},[626,915,916],{"class":719},",",[626,918,919],{"class":837}," async",[626,921,922],{"class":719}," (",[626,924,926],{"class":925},"sHdIc","request",[626,928,929],{"class":719},")",[626,931,932],{"class":837}," =>",[626,934,935],{"class":719}," {\n",[626,937,939,942,944,947,949,952,954,956,959,961,963,966,968,970],{"class":628,"line":938},14,[626,940,941],{"class":712},"  request",[626,943,882],{"class":719},[626,945,946],{"class":712},"log",[626,948,882],{"class":719},[626,950,951],{"class":782},"set",[626,953,786],{"class":795},[626,955,852],{"class":719},[626,957,958],{"class":795}," route",[626,960,799],{"class":719},[626,962,720],{"class":719},[626,964,965],{"class":635},"health",[626,967,814],{"class":719},[626,969,740],{"class":719},[626,971,826],{"class":795},[626,973,975,978,980,983,985,988],{"class":628,"line":974},15,[626,976,977],{"class":708},"  return",[626,979,734],{"class":719},[626,981,982],{"class":795}," ok",[626,984,799],{"class":719},[626,986,987],{"class":860}," true",[626,989,990],{"class":719}," }\n",[626,992,994,996],{"class":628,"line":993},16,[626,995,823],{"class":719},[626,997,826],{"class":712},[626,999,1001],{"class":628,"line":1000},17,[626,1002,776],{"emptyLinePlaceholder":775},[626,1004,1006,1008,1010,1012,1015,1017,1019,1022,1024,1028,1030],{"class":628,"line":1005},18,[626,1007,876],{"class":708},[626,1009,879],{"class":712},[626,1011,882],{"class":719},[626,1013,1014],{"class":782},"listen",[626,1016,786],{"class":712},[626,1018,852],{"class":719},[626,1020,1021],{"class":795}," port",[626,1023,799],{"class":719},[626,1025,1027],{"class":1026},"sbssI"," 3000",[626,1029,740],{"class":719},[626,1031,826],{"class":712},[1033,1034,1036,1040,1041,1047,1048,1051,1052,1055],"callout",{"color":1035,"icon":515},"info",[1037,1038,1039],"strong",{},"Using Vite?"," The ",[593,1042,1043,1046],{"href":513},[544,1044,1045],{},"evlog\u002Fvite"," plugin"," replaces the ",[544,1049,1050],{},"initLogger()"," call with compile-time auto-initialization, strips ",[544,1053,1054],{},"log.debug()"," from production builds, and injects source locations.",[540,1057,1058,1060,1061,1064],{},[544,1059,550],{}," is the evlog wide-event logger and shadows Fastify's built-in pino logger on the request. The pino logger remains accessible via ",[544,1062,1063],{},"fastify.log"," for server-level structured logging.",[604,1066,46],{"id":1067},"wide-events",[540,1069,1070],{},"Build up context progressively through your handler. One request = one wide event:",[616,1072,1074],{"className":698,"code":1073,"filename":700,"language":701,"meta":622,"style":622},"app.get('\u002Fusers\u002F:id', async (request) => {\n  const { id } = request.params as { id: string }\n\n  request.log.set({ user: { id } })\n\n  const user = await db.findUser(id)\n  request.log.set({ user: { name: user.name, plan: user.plan } })\n\n  const orders = await db.findOrders(id)\n  request.log.set({ orders: { count: orders.length, totalRevenue: sum(orders) } })\n\n  return { user, orders }\n})\n",[544,1075,1076,1107,1144,1148,1179,1183,1209,1263,1267,1291,1349,1353,1367],{"__ignoreMap":622},[626,1077,1078,1080,1082,1084,1086,1088,1091,1093,1095,1097,1099,1101,1103,1105],{"class":628,"line":629},[626,1079,899],{"class":712},[626,1081,882],{"class":719},[626,1083,904],{"class":782},[626,1085,786],{"class":712},[626,1087,814],{"class":719},[626,1089,1090],{"class":635},"\u002Fusers\u002F:id",[626,1092,814],{"class":719},[626,1094,916],{"class":719},[626,1096,919],{"class":837},[626,1098,922],{"class":719},[626,1100,926],{"class":925},[626,1102,929],{"class":719},[626,1104,932],{"class":837},[626,1106,935],{"class":719},[626,1108,1109,1112,1114,1117,1119,1122,1125,1127,1130,1133,1135,1137,1139,1142],{"class":628,"line":729},[626,1110,1111],{"class":837},"  const",[626,1113,734],{"class":719},[626,1115,1116],{"class":712}," id",[626,1118,740],{"class":719},[626,1120,1121],{"class":719}," =",[626,1123,1124],{"class":712}," request",[626,1126,882],{"class":719},[626,1128,1129],{"class":712},"params",[626,1131,1132],{"class":708}," as",[626,1134,734],{"class":719},[626,1136,1116],{"class":795},[626,1138,799],{"class":719},[626,1140,1141],{"class":632}," string",[626,1143,990],{"class":719},[626,1145,1146],{"class":628,"line":753},[626,1147,776],{"emptyLinePlaceholder":775},[626,1149,1150,1152,1154,1156,1158,1160,1162,1164,1167,1169,1171,1173,1175,1177],{"class":628,"line":772},[626,1151,941],{"class":712},[626,1153,882],{"class":719},[626,1155,946],{"class":712},[626,1157,882],{"class":719},[626,1159,951],{"class":782},[626,1161,786],{"class":795},[626,1163,852],{"class":719},[626,1165,1166],{"class":795}," user",[626,1168,799],{"class":719},[626,1170,734],{"class":719},[626,1172,1116],{"class":712},[626,1174,740],{"class":719},[626,1176,740],{"class":719},[626,1178,826],{"class":795},[626,1180,1181],{"class":628,"line":779},[626,1182,776],{"emptyLinePlaceholder":775},[626,1184,1185,1187,1189,1191,1194,1197,1199,1202,1204,1207],{"class":628,"line":792},[626,1186,1111],{"class":837},[626,1188,1166],{"class":712},[626,1190,1121],{"class":719},[626,1192,1193],{"class":708}," await",[626,1195,1196],{"class":712}," db",[626,1198,882],{"class":719},[626,1200,1201],{"class":782},"findUser",[626,1203,786],{"class":795},[626,1205,1206],{"class":712},"id",[626,1208,826],{"class":795},[626,1210,1211,1213,1215,1217,1219,1221,1223,1225,1227,1229,1231,1234,1236,1238,1240,1243,1245,1248,1250,1252,1254,1257,1259,1261],{"class":628,"line":820},[626,1212,941],{"class":712},[626,1214,882],{"class":719},[626,1216,946],{"class":712},[626,1218,882],{"class":719},[626,1220,951],{"class":782},[626,1222,786],{"class":795},[626,1224,852],{"class":719},[626,1226,1166],{"class":795},[626,1228,799],{"class":719},[626,1230,734],{"class":719},[626,1232,1233],{"class":795}," name",[626,1235,799],{"class":719},[626,1237,1166],{"class":712},[626,1239,882],{"class":719},[626,1241,1242],{"class":712},"name",[626,1244,916],{"class":719},[626,1246,1247],{"class":795}," plan",[626,1249,799],{"class":719},[626,1251,1166],{"class":712},[626,1253,882],{"class":719},[626,1255,1256],{"class":712},"plan",[626,1258,740],{"class":719},[626,1260,740],{"class":719},[626,1262,826],{"class":795},[626,1264,1265],{"class":628,"line":829},[626,1266,776],{"emptyLinePlaceholder":775},[626,1268,1269,1271,1274,1276,1278,1280,1282,1285,1287,1289],{"class":628,"line":834},[626,1270,1111],{"class":837},[626,1272,1273],{"class":712}," orders",[626,1275,1121],{"class":719},[626,1277,1193],{"class":708},[626,1279,1196],{"class":712},[626,1281,882],{"class":719},[626,1283,1284],{"class":782},"findOrders",[626,1286,786],{"class":795},[626,1288,1206],{"class":712},[626,1290,826],{"class":795},[626,1292,1293,1295,1297,1299,1301,1303,1305,1307,1309,1311,1313,1316,1318,1320,1322,1325,1327,1330,1332,1335,1337,1340,1343,1345,1347],{"class":628,"line":868},[626,1294,941],{"class":712},[626,1296,882],{"class":719},[626,1298,946],{"class":712},[626,1300,882],{"class":719},[626,1302,951],{"class":782},[626,1304,786],{"class":795},[626,1306,852],{"class":719},[626,1308,1273],{"class":795},[626,1310,799],{"class":719},[626,1312,734],{"class":719},[626,1314,1315],{"class":795}," count",[626,1317,799],{"class":719},[626,1319,1273],{"class":712},[626,1321,882],{"class":719},[626,1323,1324],{"class":712},"length",[626,1326,916],{"class":719},[626,1328,1329],{"class":795}," totalRevenue",[626,1331,799],{"class":719},[626,1333,1334],{"class":782}," sum",[626,1336,786],{"class":795},[626,1338,1339],{"class":712},"orders",[626,1341,1342],{"class":795},") ",[626,1344,823],{"class":719},[626,1346,740],{"class":719},[626,1348,826],{"class":795},[626,1350,1351],{"class":628,"line":873},[626,1352,776],{"emptyLinePlaceholder":775},[626,1354,1355,1357,1359,1361,1363,1365],{"class":628,"line":891},[626,1356,977],{"class":708},[626,1358,734],{"class":719},[626,1360,1166],{"class":712},[626,1362,916],{"class":719},[626,1364,1273],{"class":712},[626,1366,990],{"class":719},[626,1368,1369,1371],{"class":628,"line":896},[626,1370,823],{"class":719},[626,1372,826],{"class":712},[540,1374,1375],{},"All fields are merged into a single wide event emitted when the request completes:",[616,1377,1380],{"className":618,"code":1378,"filename":1379,"language":621,"meta":622,"style":622},"14:58:15 INFO [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n  ├─ orders: count=2 totalRevenue=6298\n  ├─ user: id=usr_123 name=Alice plan=pro\n  └─ requestId: 4a8ff3a8-...\n","Terminal output",[544,1381,1382,1393,1413,1429],{"__ignoreMap":622},[626,1383,1384,1387,1390],{"class":628,"line":629},[626,1385,1386],{"class":632},"14:58:15",[626,1388,1389],{"class":635}," INFO",[626,1391,1392],{"class":712}," [my-api] GET \u002Fusers\u002Fusr_123 200 in 12ms\n",[626,1394,1395,1398,1401,1404,1407,1410],{"class":628,"line":729},[626,1396,1397],{"class":632},"  ├─",[626,1399,1400],{"class":635}," orders:",[626,1402,1403],{"class":635}," count=",[626,1405,1406],{"class":1026},"2",[626,1408,1409],{"class":635}," totalRevenue=",[626,1411,1412],{"class":1026},"6298\n",[626,1414,1415,1417,1420,1423,1426],{"class":628,"line":753},[626,1416,1397],{"class":632},[626,1418,1419],{"class":635}," user:",[626,1421,1422],{"class":635}," id=usr_123",[626,1424,1425],{"class":635}," name=Alice",[626,1427,1428],{"class":635}," plan=pro\n",[626,1430,1431,1434,1437],{"class":628,"line":772},[626,1432,1433],{"class":632},"  └─",[626,1435,1436],{"class":635}," requestId:",[626,1438,1439],{"class":635}," 4a8ff3a8-...\n",[604,1441,554],{"id":1442},"uselogger",[540,1444,1445,1446,1448],{},"Use ",[544,1447,554],{}," to access the request-scoped logger from anywhere in the call stack without passing the request object through your service layer:",[616,1450,1453],{"className":698,"code":1451,"filename":1452,"language":701,"meta":622,"style":622},"import { useLogger } from 'evlog\u002Ffastify'\n\nexport async function findUser(id: string) {\n  const log = useLogger()\n  log.set({ user: { id } })\n\n  const user = await db.findUser(id)\n  log.set({ user: { name: user.name, plan: user.plan } })\n\n  return user\n}\n","src\u002Fservices\u002Fuser.ts",[544,1454,1455,1474,1478,1503,1517,1544,1548,1570,1616,1620,1627],{"__ignoreMap":622},[626,1456,1457,1459,1461,1464,1466,1468,1470,1472],{"class":628,"line":629},[626,1458,709],{"class":708},[626,1460,734],{"class":719},[626,1462,1463],{"class":712}," useLogger",[626,1465,740],{"class":719},[626,1467,743],{"class":708},[626,1469,720],{"class":719},[626,1471,546],{"class":635},[626,1473,726],{"class":719},[626,1475,1476],{"class":628,"line":729},[626,1477,776],{"emptyLinePlaceholder":775},[626,1479,1480,1483,1485,1488,1491,1493,1495,1497,1499,1501],{"class":628,"line":753},[626,1481,1482],{"class":708},"export",[626,1484,919],{"class":837},[626,1486,1487],{"class":837}," function",[626,1489,1490],{"class":782}," findUser",[626,1492,786],{"class":719},[626,1494,1206],{"class":925},[626,1496,799],{"class":719},[626,1498,1141],{"class":632},[626,1500,929],{"class":719},[626,1502,935],{"class":719},[626,1504,1505,1507,1510,1512,1514],{"class":628,"line":772},[626,1506,1111],{"class":837},[626,1508,1509],{"class":712}," log",[626,1511,1121],{"class":719},[626,1513,1463],{"class":782},[626,1515,1516],{"class":795},"()\n",[626,1518,1519,1522,1524,1526,1528,1530,1532,1534,1536,1538,1540,1542],{"class":628,"line":779},[626,1520,1521],{"class":712},"  log",[626,1523,882],{"class":719},[626,1525,951],{"class":782},[626,1527,786],{"class":795},[626,1529,852],{"class":719},[626,1531,1166],{"class":795},[626,1533,799],{"class":719},[626,1535,734],{"class":719},[626,1537,1116],{"class":712},[626,1539,740],{"class":719},[626,1541,740],{"class":719},[626,1543,826],{"class":795},[626,1545,1546],{"class":628,"line":792},[626,1547,776],{"emptyLinePlaceholder":775},[626,1549,1550,1552,1554,1556,1558,1560,1562,1564,1566,1568],{"class":628,"line":820},[626,1551,1111],{"class":837},[626,1553,1166],{"class":712},[626,1555,1121],{"class":719},[626,1557,1193],{"class":708},[626,1559,1196],{"class":712},[626,1561,882],{"class":719},[626,1563,1201],{"class":782},[626,1565,786],{"class":795},[626,1567,1206],{"class":712},[626,1569,826],{"class":795},[626,1571,1572,1574,1576,1578,1580,1582,1584,1586,1588,1590,1592,1594,1596,1598,1600,1602,1604,1606,1608,1610,1612,1614],{"class":628,"line":829},[626,1573,1521],{"class":712},[626,1575,882],{"class":719},[626,1577,951],{"class":782},[626,1579,786],{"class":795},[626,1581,852],{"class":719},[626,1583,1166],{"class":795},[626,1585,799],{"class":719},[626,1587,734],{"class":719},[626,1589,1233],{"class":795},[626,1591,799],{"class":719},[626,1593,1166],{"class":712},[626,1595,882],{"class":719},[626,1597,1242],{"class":712},[626,1599,916],{"class":719},[626,1601,1247],{"class":795},[626,1603,799],{"class":719},[626,1605,1166],{"class":712},[626,1607,882],{"class":719},[626,1609,1256],{"class":712},[626,1611,740],{"class":719},[626,1613,740],{"class":719},[626,1615,826],{"class":795},[626,1617,1618],{"class":628,"line":834},[626,1619,776],{"emptyLinePlaceholder":775},[626,1621,1622,1624],{"class":628,"line":868},[626,1623,977],{"class":708},[626,1625,1626],{"class":712}," user\n",[626,1628,1629],{"class":628,"line":873},[626,1630,1631],{"class":719},"}\n",[616,1633,1635],{"className":698,"code":1634,"filename":700,"language":701,"meta":622,"style":622},"import { findUser } from '.\u002Fservices\u002Fuser'\n\napp.get('\u002Fusers\u002F:id', async (request) => {\n  const { id } = request.params as { id: string }\n  const user = await findUser(id)\n  return user\n})\n",[544,1636,1637,1656,1660,1690,1720,1738,1744],{"__ignoreMap":622},[626,1638,1639,1641,1643,1645,1647,1649,1651,1654],{"class":628,"line":629},[626,1640,709],{"class":708},[626,1642,734],{"class":719},[626,1644,1490],{"class":712},[626,1646,740],{"class":719},[626,1648,743],{"class":708},[626,1650,720],{"class":719},[626,1652,1653],{"class":635},".\u002Fservices\u002Fuser",[626,1655,726],{"class":719},[626,1657,1658],{"class":628,"line":729},[626,1659,776],{"emptyLinePlaceholder":775},[626,1661,1662,1664,1666,1668,1670,1672,1674,1676,1678,1680,1682,1684,1686,1688],{"class":628,"line":753},[626,1663,899],{"class":712},[626,1665,882],{"class":719},[626,1667,904],{"class":782},[626,1669,786],{"class":712},[626,1671,814],{"class":719},[626,1673,1090],{"class":635},[626,1675,814],{"class":719},[626,1677,916],{"class":719},[626,1679,919],{"class":837},[626,1681,922],{"class":719},[626,1683,926],{"class":925},[626,1685,929],{"class":719},[626,1687,932],{"class":837},[626,1689,935],{"class":719},[626,1691,1692,1694,1696,1698,1700,1702,1704,1706,1708,1710,1712,1714,1716,1718],{"class":628,"line":772},[626,1693,1111],{"class":837},[626,1695,734],{"class":719},[626,1697,1116],{"class":712},[626,1699,740],{"class":719},[626,1701,1121],{"class":719},[626,1703,1124],{"class":712},[626,1705,882],{"class":719},[626,1707,1129],{"class":712},[626,1709,1132],{"class":708},[626,1711,734],{"class":719},[626,1713,1116],{"class":795},[626,1715,799],{"class":719},[626,1717,1141],{"class":632},[626,1719,990],{"class":719},[626,1721,1722,1724,1726,1728,1730,1732,1734,1736],{"class":628,"line":779},[626,1723,1111],{"class":837},[626,1725,1166],{"class":712},[626,1727,1121],{"class":719},[626,1729,1193],{"class":708},[626,1731,1490],{"class":782},[626,1733,786],{"class":795},[626,1735,1206],{"class":712},[626,1737,826],{"class":795},[626,1739,1740,1742],{"class":628,"line":792},[626,1741,977],{"class":708},[626,1743,1626],{"class":712},[626,1745,1746,1748],{"class":628,"line":820},[626,1747,823],{"class":719},[626,1749,826],{"class":712},[540,1751,1752,1753,551,1755,1757,1758,1760,1761,1764],{},"Both ",[544,1754,550],{},[544,1756,554],{}," return the same logger instance. ",[544,1759,554],{}," uses ",[544,1762,1763],{},"AsyncLocalStorage"," to propagate the logger across async boundaries.",[604,1766,1768,1769,929],{"id":1767},"background-work-logfork","Background work (",[544,1770,1771],{},"log.fork",[540,1773,1445,1774,1777,1778,1781,1782,882],{},[544,1775,1776],{},"request.log.fork(label, fn)"," for async work that should emit a ",[1037,1779,1780],{},"separate"," child wide event after the response. See ",[593,1783,1785],{"href":1784},"\u002Flearn\u002Fwide-events#after-emit-sealing-and-background-work","Wide events — After emit",[616,1787,1789],{"className":698,"code":1788,"filename":700,"language":701,"meta":622,"style":622},"import { evlog, useLogger } from 'evlog\u002Ffastify'\n\napp.post('\u002Forders', async (request, reply) => {\n  request.log.fork!('fulfill', async () => {\n    const log = useLogger()\n    log.set({ step: 'ok' })\n  })\n  return { ok: true }\n})\n",[544,1790,1791,1813,1817,1854,1890,1903,1932,1939,1953],{"__ignoreMap":622},[626,1792,1793,1795,1797,1799,1801,1803,1805,1807,1809,1811],{"class":628,"line":629},[626,1794,709],{"class":708},[626,1796,734],{"class":719},[626,1798,639],{"class":712},[626,1800,916],{"class":719},[626,1802,1463],{"class":712},[626,1804,740],{"class":719},[626,1806,743],{"class":708},[626,1808,720],{"class":719},[626,1810,546],{"class":635},[626,1812,726],{"class":719},[626,1814,1815],{"class":628,"line":729},[626,1816,776],{"emptyLinePlaceholder":775},[626,1818,1819,1821,1823,1826,1828,1830,1833,1835,1837,1839,1841,1843,1845,1848,1850,1852],{"class":628,"line":753},[626,1820,899],{"class":712},[626,1822,882],{"class":719},[626,1824,1825],{"class":782},"post",[626,1827,786],{"class":712},[626,1829,814],{"class":719},[626,1831,1832],{"class":635},"\u002Forders",[626,1834,814],{"class":719},[626,1836,916],{"class":719},[626,1838,919],{"class":837},[626,1840,922],{"class":719},[626,1842,926],{"class":925},[626,1844,916],{"class":719},[626,1846,1847],{"class":925}," reply",[626,1849,929],{"class":719},[626,1851,932],{"class":837},[626,1853,935],{"class":719},[626,1855,1856,1858,1860,1862,1864,1867,1870,1872,1874,1877,1879,1881,1883,1886,1888],{"class":628,"line":772},[626,1857,941],{"class":712},[626,1859,882],{"class":719},[626,1861,946],{"class":712},[626,1863,882],{"class":719},[626,1865,1866],{"class":782},"fork",[626,1868,1869],{"class":719},"!",[626,1871,786],{"class":795},[626,1873,814],{"class":719},[626,1875,1876],{"class":635},"fulfill",[626,1878,814],{"class":719},[626,1880,916],{"class":719},[626,1882,919],{"class":837},[626,1884,1885],{"class":719}," ()",[626,1887,932],{"class":837},[626,1889,935],{"class":719},[626,1891,1892,1895,1897,1899,1901],{"class":628,"line":779},[626,1893,1894],{"class":837},"    const",[626,1896,1509],{"class":712},[626,1898,1121],{"class":719},[626,1900,1463],{"class":782},[626,1902,1516],{"class":795},[626,1904,1905,1908,1910,1912,1914,1916,1919,1921,1923,1926,1928,1930],{"class":628,"line":792},[626,1906,1907],{"class":712},"    log",[626,1909,882],{"class":719},[626,1911,951],{"class":782},[626,1913,786],{"class":795},[626,1915,852],{"class":719},[626,1917,1918],{"class":795}," step",[626,1920,799],{"class":719},[626,1922,720],{"class":719},[626,1924,1925],{"class":635},"ok",[626,1927,814],{"class":719},[626,1929,740],{"class":719},[626,1931,826],{"class":795},[626,1933,1934,1937],{"class":628,"line":820},[626,1935,1936],{"class":719},"  }",[626,1938,826],{"class":795},[626,1940,1941,1943,1945,1947,1949,1951],{"class":628,"line":829},[626,1942,977],{"class":708},[626,1944,734],{"class":719},[626,1946,982],{"class":795},[626,1948,799],{"class":719},[626,1950,987],{"class":860},[626,1952,990],{"class":719},[626,1954,1955,1957],{"class":628,"line":834},[626,1956,823],{"class":719},[626,1958,826],{"class":712},[604,1960,1962],{"id":1961},"error-handling","Error Handling",[540,1964,1445,1965,1968,1969,1972,1973,1976,1977,1980,1981,799],{},[544,1966,1967],{},"createError"," for structured errors with ",[544,1970,1971],{},"why",", ",[544,1974,1975],{},"fix",", and ",[544,1978,1979],{},"link"," fields. Fastify captures thrown errors via ",[544,1982,1983],{},"onError",[616,1985,1987],{"className":698,"code":1986,"filename":700,"language":701,"meta":622,"style":622},"import { createError, parseError } from 'evlog'\n\napp.get('\u002Fcheckout', async (_request, reply) => {\n  throw createError({\n    message: 'Payment failed',\n    status: 402,\n    why: 'Card declined by issuer',\n    fix: 'Try a different payment method',\n    link: 'https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined',\n  })\n})\n\napp.setErrorHandler((error, _request, reply) => {\n  const parsed = parseError(error)\n  reply.status(parsed.status).send({\n    message: parsed.message,\n    why: parsed.why,\n    fix: parsed.fix,\n    link: parsed.link,\n  })\n})\n",[544,1988,1989,2013,2017,2053,2064,2081,2093,2109,2125,2141,2147,2153,2157,2188,2205,2235,2250,2264,2278,2293,2300],{"__ignoreMap":622},[626,1990,1991,1993,1995,1998,2000,2003,2005,2007,2009,2011],{"class":628,"line":629},[626,1992,709],{"class":708},[626,1994,734],{"class":719},[626,1996,1997],{"class":712}," createError",[626,1999,916],{"class":719},[626,2001,2002],{"class":712}," parseError",[626,2004,740],{"class":719},[626,2006,743],{"class":708},[626,2008,720],{"class":719},[626,2010,748],{"class":635},[626,2012,726],{"class":719},[626,2014,2015],{"class":628,"line":729},[626,2016,776],{"emptyLinePlaceholder":775},[626,2018,2019,2021,2023,2025,2027,2029,2032,2034,2036,2038,2040,2043,2045,2047,2049,2051],{"class":628,"line":753},[626,2020,899],{"class":712},[626,2022,882],{"class":719},[626,2024,904],{"class":782},[626,2026,786],{"class":712},[626,2028,814],{"class":719},[626,2030,2031],{"class":635},"\u002Fcheckout",[626,2033,814],{"class":719},[626,2035,916],{"class":719},[626,2037,919],{"class":837},[626,2039,922],{"class":719},[626,2041,2042],{"class":925},"_request",[626,2044,916],{"class":719},[626,2046,1847],{"class":925},[626,2048,929],{"class":719},[626,2050,932],{"class":837},[626,2052,935],{"class":719},[626,2054,2055,2058,2060,2062],{"class":628,"line":772},[626,2056,2057],{"class":708},"  throw",[626,2059,1997],{"class":782},[626,2061,786],{"class":795},[626,2063,789],{"class":719},[626,2065,2066,2069,2071,2073,2076,2078],{"class":628,"line":779},[626,2067,2068],{"class":795},"    message",[626,2070,799],{"class":719},[626,2072,720],{"class":719},[626,2074,2075],{"class":635},"Payment failed",[626,2077,814],{"class":719},[626,2079,2080],{"class":719},",\n",[626,2082,2083,2086,2088,2091],{"class":628,"line":792},[626,2084,2085],{"class":795},"    status",[626,2087,799],{"class":719},[626,2089,2090],{"class":1026}," 402",[626,2092,2080],{"class":719},[626,2094,2095,2098,2100,2102,2105,2107],{"class":628,"line":820},[626,2096,2097],{"class":795},"    why",[626,2099,799],{"class":719},[626,2101,720],{"class":719},[626,2103,2104],{"class":635},"Card declined by issuer",[626,2106,814],{"class":719},[626,2108,2080],{"class":719},[626,2110,2111,2114,2116,2118,2121,2123],{"class":628,"line":829},[626,2112,2113],{"class":795},"    fix",[626,2115,799],{"class":719},[626,2117,720],{"class":719},[626,2119,2120],{"class":635},"Try a different payment method",[626,2122,814],{"class":719},[626,2124,2080],{"class":719},[626,2126,2127,2130,2132,2134,2137,2139],{"class":628,"line":834},[626,2128,2129],{"class":795},"    link",[626,2131,799],{"class":719},[626,2133,720],{"class":719},[626,2135,2136],{"class":635},"https:\u002F\u002Fdocs.example.com\u002Fpayments\u002Fdeclined",[626,2138,814],{"class":719},[626,2140,2080],{"class":719},[626,2142,2143,2145],{"class":628,"line":868},[626,2144,1936],{"class":719},[626,2146,826],{"class":795},[626,2148,2149,2151],{"class":628,"line":873},[626,2150,823],{"class":719},[626,2152,826],{"class":712},[626,2154,2155],{"class":628,"line":891},[626,2156,776],{"emptyLinePlaceholder":775},[626,2158,2159,2161,2163,2166,2168,2170,2173,2175,2178,2180,2182,2184,2186],{"class":628,"line":896},[626,2160,899],{"class":712},[626,2162,882],{"class":719},[626,2164,2165],{"class":782},"setErrorHandler",[626,2167,786],{"class":712},[626,2169,786],{"class":719},[626,2171,2172],{"class":925},"error",[626,2174,916],{"class":719},[626,2176,2177],{"class":925}," _request",[626,2179,916],{"class":719},[626,2181,1847],{"class":925},[626,2183,929],{"class":719},[626,2185,932],{"class":837},[626,2187,935],{"class":719},[626,2189,2190,2192,2195,2197,2199,2201,2203],{"class":628,"line":938},[626,2191,1111],{"class":837},[626,2193,2194],{"class":712}," parsed",[626,2196,1121],{"class":719},[626,2198,2002],{"class":782},[626,2200,786],{"class":795},[626,2202,2172],{"class":712},[626,2204,826],{"class":795},[626,2206,2207,2210,2212,2215,2217,2220,2222,2224,2226,2228,2231,2233],{"class":628,"line":974},[626,2208,2209],{"class":712},"  reply",[626,2211,882],{"class":719},[626,2213,2214],{"class":782},"status",[626,2216,786],{"class":795},[626,2218,2219],{"class":712},"parsed",[626,2221,882],{"class":719},[626,2223,2214],{"class":712},[626,2225,929],{"class":795},[626,2227,882],{"class":719},[626,2229,2230],{"class":782},"send",[626,2232,786],{"class":795},[626,2234,789],{"class":719},[626,2236,2237,2239,2241,2243,2245,2248],{"class":628,"line":993},[626,2238,2068],{"class":795},[626,2240,799],{"class":719},[626,2242,2194],{"class":712},[626,2244,882],{"class":719},[626,2246,2247],{"class":712},"message",[626,2249,2080],{"class":719},[626,2251,2252,2254,2256,2258,2260,2262],{"class":628,"line":1000},[626,2253,2097],{"class":795},[626,2255,799],{"class":719},[626,2257,2194],{"class":712},[626,2259,882],{"class":719},[626,2261,1971],{"class":712},[626,2263,2080],{"class":719},[626,2265,2266,2268,2270,2272,2274,2276],{"class":628,"line":1005},[626,2267,2113],{"class":795},[626,2269,799],{"class":719},[626,2271,2194],{"class":712},[626,2273,882],{"class":719},[626,2275,1975],{"class":712},[626,2277,2080],{"class":719},[626,2279,2281,2283,2285,2287,2289,2291],{"class":628,"line":2280},19,[626,2282,2129],{"class":795},[626,2284,799],{"class":719},[626,2286,2194],{"class":712},[626,2288,882],{"class":719},[626,2290,1979],{"class":712},[626,2292,2080],{"class":719},[626,2294,2296,2298],{"class":628,"line":2295},20,[626,2297,1936],{"class":719},[626,2299,826],{"class":795},[626,2301,2303,2305],{"class":628,"line":2302},21,[626,2304,823],{"class":719},[626,2306,826],{"class":712},[540,2308,2309],{},"The error is captured and logged with both the custom context and structured error fields:",[616,2311,2313],{"className":618,"code":2312,"filename":1379,"language":621,"meta":622,"style":622},"14:58:20 ERROR [my-api] GET \u002Fcheckout 402 in 3ms\n  ├─ error: name=EvlogError message=Payment failed status=402\n  └─ requestId: 880a50ac-...\n",[544,2314,2315,2326,2348],{"__ignoreMap":622},[626,2316,2317,2320,2323],{"class":628,"line":629},[626,2318,2319],{"class":632},"14:58:20",[626,2321,2322],{"class":635}," ERROR",[626,2324,2325],{"class":712}," [my-api] GET \u002Fcheckout 402 in 3ms\n",[626,2327,2328,2330,2333,2336,2339,2342,2345],{"class":628,"line":729},[626,2329,1397],{"class":632},[626,2331,2332],{"class":635}," error:",[626,2334,2335],{"class":635}," name=EvlogError",[626,2337,2338],{"class":635}," message=Payment",[626,2340,2341],{"class":635}," failed",[626,2343,2344],{"class":635}," status=",[626,2346,2347],{"class":1026},"402\n",[626,2349,2350,2352,2354],{"class":628,"line":753},[626,2351,1433],{"class":632},[626,2353,1436],{"class":635},[626,2355,2356],{"class":635}," 880a50ac-...\n",[604,2358,504],{"id":2359},"configuration",[540,2361,2362,2363,2366,2367,2369],{},"See the ",[593,2364,2365],{"href":505},"Configuration reference"," for all available options (",[544,2368,783],{},", middleware options, sampling, silent mode, etc.).",[604,2371,2373],{"id":2372},"drain-enrichers","Drain & Enrichers",[540,2375,2376],{},"Configure drain adapters and enrichers directly in the plugin options:",[616,2378,2380],{"className":698,"code":2379,"filename":700,"language":701,"meta":622,"style":622},"import { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createUserAgentEnricher } from 'evlog\u002Fenrichers'\n\nconst userAgent = createUserAgentEnricher()\n\nawait app.register(evlog, {\n  drain: createAxiomDrain(),\n  enrich: (ctx) => {\n    userAgent(ctx)\n    ctx.event.region = process.env.FLY_REGION\n  },\n})\n",[544,2381,2382,2402,2422,2426,2439,2443,2460,2474,2492,2503,2533,2538],{"__ignoreMap":622},[626,2383,2384,2386,2388,2391,2393,2395,2397,2400],{"class":628,"line":629},[626,2385,709],{"class":708},[626,2387,734],{"class":719},[626,2389,2390],{"class":712}," createAxiomDrain",[626,2392,740],{"class":719},[626,2394,743],{"class":708},[626,2396,720],{"class":719},[626,2398,2399],{"class":635},"evlog\u002Faxiom",[626,2401,726],{"class":719},[626,2403,2404,2406,2408,2411,2413,2415,2417,2420],{"class":628,"line":729},[626,2405,709],{"class":708},[626,2407,734],{"class":719},[626,2409,2410],{"class":712}," createUserAgentEnricher",[626,2412,740],{"class":719},[626,2414,743],{"class":708},[626,2416,720],{"class":719},[626,2418,2419],{"class":635},"evlog\u002Fenrichers",[626,2421,726],{"class":719},[626,2423,2424],{"class":628,"line":753},[626,2425,776],{"emptyLinePlaceholder":775},[626,2427,2428,2430,2433,2435,2437],{"class":628,"line":772},[626,2429,838],{"class":837},[626,2431,2432],{"class":712}," userAgent ",[626,2434,844],{"class":719},[626,2436,2410],{"class":782},[626,2438,1516],{"class":712},[626,2440,2441],{"class":628,"line":779},[626,2442,776],{"emptyLinePlaceholder":775},[626,2444,2445,2447,2449,2451,2453,2456,2458],{"class":628,"line":792},[626,2446,876],{"class":708},[626,2448,879],{"class":712},[626,2450,882],{"class":719},[626,2452,885],{"class":782},[626,2454,2455],{"class":712},"(evlog",[626,2457,916],{"class":719},[626,2459,935],{"class":719},[626,2461,2462,2465,2467,2469,2472],{"class":628,"line":820},[626,2463,2464],{"class":795},"  drain",[626,2466,799],{"class":719},[626,2468,2390],{"class":782},[626,2470,2471],{"class":712},"()",[626,2473,2080],{"class":719},[626,2475,2476,2479,2481,2483,2486,2488,2490],{"class":628,"line":829},[626,2477,2478],{"class":782},"  enrich",[626,2480,799],{"class":719},[626,2482,922],{"class":719},[626,2484,2485],{"class":925},"ctx",[626,2487,929],{"class":719},[626,2489,932],{"class":837},[626,2491,935],{"class":719},[626,2493,2494,2497,2499,2501],{"class":628,"line":834},[626,2495,2496],{"class":782},"    userAgent",[626,2498,786],{"class":795},[626,2500,2485],{"class":712},[626,2502,826],{"class":795},[626,2504,2505,2508,2510,2513,2515,2518,2520,2523,2525,2528,2530],{"class":628,"line":868},[626,2506,2507],{"class":712},"    ctx",[626,2509,882],{"class":719},[626,2511,2512],{"class":712},"event",[626,2514,882],{"class":719},[626,2516,2517],{"class":712},"region",[626,2519,1121],{"class":719},[626,2521,2522],{"class":712}," process",[626,2524,882],{"class":719},[626,2526,2527],{"class":712},"env",[626,2529,882],{"class":719},[626,2531,2532],{"class":712},"FLY_REGION\n",[626,2534,2535],{"class":628,"line":873},[626,2536,2537],{"class":719},"  },\n",[626,2539,2540,2542],{"class":628,"line":891},[626,2541,823],{"class":719},[626,2543,826],{"class":712},[608,2545,2547],{"id":2546},"pipeline-batching-retry","Pipeline (Batching & Retry)",[540,2549,2550,2551,2554],{},"For production, wrap your adapter with ",[544,2552,2553],{},"createDrainPipeline"," to batch events and retry on failure:",[616,2556,2558],{"className":698,"code":2557,"filename":700,"language":701,"meta":622,"style":622},"import type { DrainContext } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\nimport { createDrainPipeline } from 'evlog\u002Fpipeline'\n\nconst pipeline = createDrainPipeline\u003CDrainContext>({\n  batch: { size: 50, intervalMs: 5000 },\n  retry: { maxAttempts: 3 },\n})\nconst drain = pipeline(createAxiomDrain())\n\nawait app.register(evlog, { drain })\n",[544,2559,2560,2582,2600,2620,2624,2648,2677,2696,2702,2722,2726],{"__ignoreMap":622},[626,2561,2562,2564,2567,2569,2572,2574,2576,2578,2580],{"class":628,"line":629},[626,2563,709],{"class":708},[626,2565,2566],{"class":708}," type",[626,2568,734],{"class":719},[626,2570,2571],{"class":712}," DrainContext",[626,2573,740],{"class":719},[626,2575,743],{"class":708},[626,2577,720],{"class":719},[626,2579,748],{"class":635},[626,2581,726],{"class":719},[626,2583,2584,2586,2588,2590,2592,2594,2596,2598],{"class":628,"line":729},[626,2585,709],{"class":708},[626,2587,734],{"class":719},[626,2589,2390],{"class":712},[626,2591,740],{"class":719},[626,2593,743],{"class":708},[626,2595,720],{"class":719},[626,2597,2399],{"class":635},[626,2599,726],{"class":719},[626,2601,2602,2604,2606,2609,2611,2613,2615,2618],{"class":628,"line":753},[626,2603,709],{"class":708},[626,2605,734],{"class":719},[626,2607,2608],{"class":712}," createDrainPipeline",[626,2610,740],{"class":719},[626,2612,743],{"class":708},[626,2614,720],{"class":719},[626,2616,2617],{"class":635},"evlog\u002Fpipeline",[626,2619,726],{"class":719},[626,2621,2622],{"class":628,"line":772},[626,2623,776],{"emptyLinePlaceholder":775},[626,2625,2626,2628,2631,2633,2635,2638,2641,2644,2646],{"class":628,"line":779},[626,2627,838],{"class":837},[626,2629,2630],{"class":712}," pipeline ",[626,2632,844],{"class":719},[626,2634,2608],{"class":782},[626,2636,2637],{"class":719},"\u003C",[626,2639,2640],{"class":632},"DrainContext",[626,2642,2643],{"class":719},">",[626,2645,786],{"class":712},[626,2647,789],{"class":719},[626,2649,2650,2653,2655,2657,2660,2662,2665,2667,2670,2672,2675],{"class":628,"line":792},[626,2651,2652],{"class":795},"  batch",[626,2654,799],{"class":719},[626,2656,734],{"class":719},[626,2658,2659],{"class":795}," size",[626,2661,799],{"class":719},[626,2663,2664],{"class":1026}," 50",[626,2666,916],{"class":719},[626,2668,2669],{"class":795}," intervalMs",[626,2671,799],{"class":719},[626,2673,2674],{"class":1026}," 5000",[626,2676,817],{"class":719},[626,2678,2679,2682,2684,2686,2689,2691,2694],{"class":628,"line":820},[626,2680,2681],{"class":795},"  retry",[626,2683,799],{"class":719},[626,2685,734],{"class":719},[626,2687,2688],{"class":795}," maxAttempts",[626,2690,799],{"class":719},[626,2692,2693],{"class":1026}," 3",[626,2695,817],{"class":719},[626,2697,2698,2700],{"class":628,"line":829},[626,2699,823],{"class":719},[626,2701,826],{"class":712},[626,2703,2704,2706,2709,2711,2714,2716,2719],{"class":628,"line":834},[626,2705,838],{"class":837},[626,2707,2708],{"class":712}," drain ",[626,2710,844],{"class":719},[626,2712,2713],{"class":782}," pipeline",[626,2715,786],{"class":712},[626,2717,2718],{"class":782},"createAxiomDrain",[626,2720,2721],{"class":712},"())\n",[626,2723,2724],{"class":628,"line":868},[626,2725,776],{"emptyLinePlaceholder":775},[626,2727,2728,2730,2732,2734,2736,2738,2740,2742,2744,2746],{"class":628,"line":873},[626,2729,876],{"class":708},[626,2731,879],{"class":712},[626,2733,882],{"class":719},[626,2735,885],{"class":782},[626,2737,2455],{"class":712},[626,2739,916],{"class":719},[626,2741,734],{"class":719},[626,2743,2708],{"class":712},[626,2745,823],{"class":719},[626,2747,826],{"class":712},[1033,2749,2750,2751,2754,2755,2758],{"color":1035,"icon":13},"Call ",[544,2752,2753],{},"drain.flush()"," on server shutdown to ensure all buffered events are sent. See the ",[593,2756,2757],{"href":496},"Pipeline docs"," for all options.",[604,2760,2762],{"id":2761},"tail-sampling","Tail Sampling",[540,2764,1445,2765,2768],{},[544,2766,2767],{},"keep"," to force-retain specific events regardless of head sampling:",[616,2770,2772],{"className":698,"code":2771,"filename":700,"language":701,"meta":622,"style":622},"await app.register(evlog, {\n  drain: createAxiomDrain(),\n  keep: (ctx) => {\n    if (ctx.duration && ctx.duration > 2000) ctx.shouldKeep = true\n  },\n})\n",[544,2773,2774,2790,2802,2819,2863,2867],{"__ignoreMap":622},[626,2775,2776,2778,2780,2782,2784,2786,2788],{"class":628,"line":629},[626,2777,876],{"class":708},[626,2779,879],{"class":712},[626,2781,882],{"class":719},[626,2783,885],{"class":782},[626,2785,2455],{"class":712},[626,2787,916],{"class":719},[626,2789,935],{"class":719},[626,2791,2792,2794,2796,2798,2800],{"class":628,"line":729},[626,2793,2464],{"class":795},[626,2795,799],{"class":719},[626,2797,2390],{"class":782},[626,2799,2471],{"class":712},[626,2801,2080],{"class":719},[626,2803,2804,2807,2809,2811,2813,2815,2817],{"class":628,"line":753},[626,2805,2806],{"class":782},"  keep",[626,2808,799],{"class":719},[626,2810,922],{"class":719},[626,2812,2485],{"class":925},[626,2814,929],{"class":719},[626,2816,932],{"class":837},[626,2818,935],{"class":719},[626,2820,2821,2824,2826,2828,2830,2833,2836,2839,2841,2843,2846,2849,2851,2853,2855,2858,2860],{"class":628,"line":772},[626,2822,2823],{"class":708},"    if",[626,2825,922],{"class":795},[626,2827,2485],{"class":712},[626,2829,882],{"class":719},[626,2831,2832],{"class":712},"duration",[626,2834,2835],{"class":719}," &&",[626,2837,2838],{"class":712}," ctx",[626,2840,882],{"class":719},[626,2842,2832],{"class":712},[626,2844,2845],{"class":719}," >",[626,2847,2848],{"class":1026}," 2000",[626,2850,1342],{"class":795},[626,2852,2485],{"class":712},[626,2854,882],{"class":719},[626,2856,2857],{"class":712},"shouldKeep",[626,2859,1121],{"class":719},[626,2861,2862],{"class":860}," true\n",[626,2864,2865],{"class":628,"line":779},[626,2866,2537],{"class":719},[626,2868,2869,2871],{"class":628,"line":792},[626,2870,823],{"class":719},[626,2872,826],{"class":712},[604,2874,2876],{"id":2875},"route-filtering","Route Filtering",[540,2878,2879,2880,551,2883,2886],{},"Control which routes are logged with ",[544,2881,2882],{},"include",[544,2884,2885],{},"exclude"," patterns:",[616,2888,2890],{"className":698,"code":2889,"filename":700,"language":701,"meta":622,"style":622},"await app.register(evlog, {\n  include: ['\u002Fapi\u002F**'],\n  exclude: ['\u002F_internal\u002F**', '\u002Fhealth'],\n  routes: {\n    '\u002Fapi\u002Fauth\u002F**': { service: 'auth-service' },\n    '\u002Fapi\u002Fpayment\u002F**': { service: 'payment-service' },\n  },\n})\n",[544,2891,2892,2908,2930,2958,2967,2994,3020,3024],{"__ignoreMap":622},[626,2893,2894,2896,2898,2900,2902,2904,2906],{"class":628,"line":629},[626,2895,876],{"class":708},[626,2897,879],{"class":712},[626,2899,882],{"class":719},[626,2901,885],{"class":782},[626,2903,2455],{"class":712},[626,2905,916],{"class":719},[626,2907,935],{"class":719},[626,2909,2910,2913,2915,2918,2920,2923,2925,2928],{"class":628,"line":729},[626,2911,2912],{"class":795},"  include",[626,2914,799],{"class":719},[626,2916,2917],{"class":712}," [",[626,2919,814],{"class":719},[626,2921,2922],{"class":635},"\u002Fapi\u002F**",[626,2924,814],{"class":719},[626,2926,2927],{"class":712},"]",[626,2929,2080],{"class":719},[626,2931,2932,2935,2937,2939,2941,2944,2946,2948,2950,2952,2954,2956],{"class":628,"line":753},[626,2933,2934],{"class":795},"  exclude",[626,2936,799],{"class":719},[626,2938,2917],{"class":712},[626,2940,814],{"class":719},[626,2942,2943],{"class":635},"\u002F_internal\u002F**",[626,2945,814],{"class":719},[626,2947,916],{"class":719},[626,2949,720],{"class":719},[626,2951,911],{"class":635},[626,2953,814],{"class":719},[626,2955,2927],{"class":712},[626,2957,2080],{"class":719},[626,2959,2960,2963,2965],{"class":628,"line":772},[626,2961,2962],{"class":795},"  routes",[626,2964,799],{"class":719},[626,2966,935],{"class":719},[626,2968,2969,2972,2975,2977,2979,2981,2983,2985,2987,2990,2992],{"class":628,"line":779},[626,2970,2971],{"class":719},"    '",[626,2973,2974],{"class":795},"\u002Fapi\u002Fauth\u002F**",[626,2976,814],{"class":719},[626,2978,799],{"class":719},[626,2980,734],{"class":719},[626,2982,804],{"class":795},[626,2984,799],{"class":719},[626,2986,720],{"class":719},[626,2988,2989],{"class":635},"auth-service",[626,2991,814],{"class":719},[626,2993,817],{"class":719},[626,2995,2996,2998,3001,3003,3005,3007,3009,3011,3013,3016,3018],{"class":628,"line":792},[626,2997,2971],{"class":719},[626,2999,3000],{"class":795},"\u002Fapi\u002Fpayment\u002F**",[626,3002,814],{"class":719},[626,3004,799],{"class":719},[626,3006,734],{"class":719},[626,3008,804],{"class":795},[626,3010,799],{"class":719},[626,3012,720],{"class":719},[626,3014,3015],{"class":635},"payment-service",[626,3017,814],{"class":719},[626,3019,817],{"class":719},[626,3021,3022],{"class":628,"line":820},[626,3023,2537],{"class":719},[626,3025,3026,3028],{"class":628,"line":829},[626,3027,823],{"class":719},[626,3029,826],{"class":712},[604,3031,3033],{"id":3032},"run-locally","Run Locally",[616,3035,3038],{"className":618,"code":3036,"filename":3037,"language":621,"meta":622,"style":622},"git clone https:\u002F\u002Fgithub.com\u002Fhugorcd\u002Fevlog.git\ncd evlog\npnpm install\npnpm example fastify\n","Terminal",[544,3039,3040,3051,3059,3066],{"__ignoreMap":622},[626,3041,3042,3045,3048],{"class":628,"line":629},[626,3043,3044],{"class":632},"git",[626,3046,3047],{"class":635}," clone",[626,3049,3050],{"class":635}," https:\u002F\u002Fgithub.com\u002Fhugorcd\u002Fevlog.git\n",[626,3052,3053,3056],{"class":628,"line":729},[626,3054,3055],{"class":782},"cd",[626,3057,3058],{"class":635}," evlog\n",[626,3060,3061,3063],{"class":628,"line":753},[626,3062,620],{"class":632},[626,3064,3065],{"class":635}," install\n",[626,3067,3068,3070,3073],{"class":628,"line":772},[626,3069,620],{"class":632},[626,3071,3072],{"class":635}," example",[626,3074,642],{"class":635},[540,3076,3077,3078,3082],{},"Open ",[593,3079,3080],{"href":3080,"rel":3081},"http:\u002F\u002Flocalhost:3000",[597]," to explore the interactive test UI.",[3084,3085,3086],"card-group",{},[3087,3088,3092],"card",{"icon":3089,"title":3090,"to":3091},"i-simple-icons-github","Source Code","https:\u002F\u002Fgithub.com\u002Fhugorcd\u002Fevlog\u002Ftree\u002Fmain\u002Fexamples\u002Ffastify","Browse the complete Fastify example source on GitHub.",[604,3094,3096],{"id":3095},"next-steps","Next Steps",[565,3098,3099,3104,3109,3114],{},[568,3100,3101,3103],{},[593,3102,46],{"href":47},": Design comprehensive events with context layering",[568,3105,3106,3108],{},[593,3107,138],{"href":143},": Send logs to Axiom, Sentry, PostHog, and more",[568,3110,3111,3113],{},[593,3112,61],{"href":62},": Control log volume with head and tail sampling",[568,3115,3116,3118,3119,1972,3121,1976,3123,3125],{},[593,3117,51],{"href":52},": Throw errors with ",[544,3120,1971],{},[544,3122,1975],{},[544,3124,1979],{}," fields",[3127,3128,3129],"style",{},"html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .sfazB, html code.shiki .sfazB{--shiki-light:#91B859;--shiki-default:#C3E88D;--shiki-dark:#C3E88D}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 .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 .sTEyZ, html code.shiki .sTEyZ{--shiki-light:#90A4AE;--shiki-default:#EEFFFF;--shiki-dark:#BABED8}html pre.shiki code .sMK4o, html code.shiki .sMK4o{--shiki-light:#39ADB5;--shiki-default:#89DDFF;--shiki-dark:#89DDFF}html pre.shiki code .s2Zo4, html code.shiki .s2Zo4{--shiki-light:#6182B8;--shiki-default:#82AAFF;--shiki-dark:#82AAFF}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}html pre.shiki code .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}html pre.shiki code .sHdIc, html code.shiki .sHdIc{--shiki-light:#90A4AE;--shiki-light-font-style:italic;--shiki-default:#EEFFFF;--shiki-default-font-style:italic;--shiki-dark:#BABED8;--shiki-dark-font-style:italic}html pre.shiki code .sbssI, html code.shiki .sbssI{--shiki-light:#F76D47;--shiki-default:#F78C6C;--shiki-dark:#F78C6C}",{"title":622,"searchDepth":729,"depth":729,"links":3131},[3132,3136,3137,3138,3140,3141,3142,3145,3146,3147,3148],{"id":606,"depth":729,"text":25,"children":3133},[3134,3135],{"id":610,"depth":753,"text":611},{"id":694,"depth":753,"text":695},{"id":1067,"depth":729,"text":46},{"id":1442,"depth":729,"text":554},{"id":1767,"depth":729,"text":3139},"Background work (log.fork)",{"id":1961,"depth":729,"text":1962},{"id":2359,"depth":729,"text":504},{"id":2372,"depth":729,"text":2373,"children":3143},[3144],{"id":2546,"depth":753,"text":2547},{"id":2761,"depth":729,"text":2762},{"id":2875,"depth":729,"text":2876},{"id":3032,"depth":729,"text":3033},{"id":3095,"depth":729,"text":3096},"Automatic wide events, structured errors, drain adapters, enrichers, and tail sampling in Fastify applications.","md",[3152],{"label":3090,"icon":3089,"to":3091,"color":3153,"variant":3154},"neutral","subtle",{},{"title":270,"icon":273},{"title":270,"description":3149},"9D9KXSacXB4P1ScURrVGF-88JltGdU7yUUA4PxlKTmE",[3160,3162],{"title":265,"path":266,"stem":267,"description":3161,"icon":268,"children":-1},"Automatic wide events, structured errors, drain adapters, enrichers, and tail sampling in Hono applications.",{"title":275,"path":276,"stem":277,"description":3163,"icon":278,"children":-1},"Automatic wide events, structured errors, drain adapters, enrichers, and tail sampling in Elysia applications.",1786743661883]