[{"data":1,"prerenderedAt":1490},["ShallowReactive",2],{"navigation_docs":3,"-use-cases-audit-pipeline":602,"-use-cases-audit-pipeline-surround":1485},[4,35,85,138,318,479,538,577],{"title":5,"path":6,"stem":7,"children":8,"page":34},"Start","\u002Fstart","1.start",[9,14,19,24,29],{"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",{"title":30,"path":31,"stem":32,"icon":33},"Choose your logger","\u002Fstart\u002Ftypescript-logging-library","1.start\u002F5.typescript-logging-library","i-lucide-file-code",false,{"title":36,"path":37,"stem":38,"children":39,"page":34},"Learn","\u002Flearn","2.learn",[40,45,50,55,60,65,70,75,80],{"title":41,"path":42,"stem":43,"icon":44},"Overview","\u002Flearn\u002Foverview","2.learn\u002F0.overview","i-lucide-list",{"title":46,"path":47,"stem":48,"icon":49},"Simple Logging","\u002Flearn\u002Fsimple-logging","2.learn\u002F1.simple-logging","i-lucide-terminal",{"title":51,"path":52,"stem":53,"icon":54},"Wide Events","\u002Flearn\u002Fwide-events","2.learn\u002F2.wide-events","i-lucide-layers",{"title":56,"path":57,"stem":58,"icon":59},"Structured Errors","\u002Flearn\u002Fstructured-errors","2.learn\u002F3.structured-errors","i-lucide-shield-alert",{"title":61,"path":62,"stem":63,"icon":64},"Lifecycle","\u002Flearn\u002Flifecycle","2.learn\u002F4.lifecycle","i-lucide-arrow-right-left",{"title":66,"path":67,"stem":68,"icon":69},"Sampling","\u002Flearn\u002Fsampling","2.learn\u002F5.sampling","i-lucide-filter",{"title":71,"path":72,"stem":73,"icon":74},"Auto-Redaction","\u002Flearn\u002Fredaction","2.learn\u002F6.redaction","i-lucide-eye-off",{"title":76,"path":77,"stem":78,"icon":79},"Typed Fields","\u002Flearn\u002Ftyped-fields","2.learn\u002F7.typed-fields","i-simple-icons-typescript",{"title":81,"path":82,"stem":83,"icon":84},"Catalogs","\u002Flearn\u002Fcatalogs","2.learn\u002F8.catalogs","i-lucide-book-open",{"title":86,"path":87,"stem":88,"children":89,"page":34},"CLI","\u002Fcli","3.cli",[90,93,98,103,108,113,118,123,128,133],{"title":41,"path":91,"stem":92,"icon":49},"\u002Fcli\u002Foverview","3.cli\u002F0.overview",{"title":94,"path":95,"stem":96,"icon":97},"init","\u002Fcli\u002Finit","3.cli\u002F1.init","i-lucide-wand-sparkles",{"title":99,"path":100,"stem":101,"icon":102},"map","\u002Fcli\u002Fmap","3.cli\u002F2.map","i-lucide-radar",{"title":104,"path":105,"stem":106,"icon":107},"Rules","\u002Fcli\u002Frules","3.cli\u002F3.rules","i-lucide-list-checks",{"title":109,"path":110,"stem":111,"icon":112},"Scoring","\u002Fcli\u002Fscoring","3.cli\u002F4.scoring","i-lucide-gauge",{"title":114,"path":115,"stem":116,"icon":117},"CI","\u002Fcli\u002Fci","3.cli\u002F5.ci","i-lucide-git-pull-request",{"title":119,"path":120,"stem":121,"icon":122},"doctor","\u002Fcli\u002Fdoctor","3.cli\u002F6.doctor","i-lucide-stethoscope",{"title":124,"path":125,"stem":126,"icon":127},"telemetry","\u002Fcli\u002Ftelemetry","3.cli\u002F7.telemetry","i-lucide-bar-chart-3",{"title":129,"path":130,"stem":131,"icon":132},"agents","\u002Fcli\u002Fagents","3.cli\u002F8.agents","i-lucide-bot",{"title":134,"path":135,"stem":136,"icon":137},"Observability Score","\u002Fcli\u002Fobservability-score","3.cli\u002F9.observability-score","i-lucide-activity",{"title":139,"path":140,"stem":141,"children":142,"page":34},"Integrate","\u002Fintegrate","4.integrate",[143,147,230],{"title":41,"path":144,"stem":145,"icon":146},"\u002Fintegrate\u002Foverview","4.integrate\u002F0.overview","i-lucide-plug",{"title":148,"path":149,"stem":150,"children":151,"page":34},"Adapters","\u002Fintegrate\u002Fadapters","4.integrate\u002Fadapters",[152,155,185,210],{"title":41,"path":153,"stem":154,"icon":44},"\u002Fintegrate\u002Fadapters\u002Foverview","4.integrate\u002Fadapters\u002F01.overview",{"title":156,"path":157,"stem":158,"children":159,"page":34},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","4.integrate\u002Fadapters\u002Fcloud",[160,165,170,175,180],{"title":161,"path":162,"stem":163,"icon":164},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","4.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":166,"path":167,"stem":168,"icon":169},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","4.integrate\u002Fadapters\u002Fcloud\u002F02.posthog","i-simple-icons-posthog",{"title":171,"path":172,"stem":173,"icon":174},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","4.integrate\u002Fadapters\u002Fcloud\u002F03.sentry","i-simple-icons-sentry",{"title":176,"path":177,"stem":178,"icon":179},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","4.integrate\u002Fadapters\u002Fcloud\u002F04.better-stack","i-simple-icons-betterstack",{"title":181,"path":182,"stem":183,"icon":184},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","4.integrate\u002Fadapters\u002Fcloud\u002F05.datadog","i-simple-icons-datadog",{"title":186,"path":187,"stem":188,"children":189,"page":34},"Cloud or Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fhybrid","4.integrate\u002Fadapters\u002Fhybrid",[190,195,200,205],{"title":191,"path":192,"stem":193,"icon":194},"Grafana Loki","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Floki","4.integrate\u002Fadapters\u002Fhybrid\u002F01.loki","i-simple-icons-grafana",{"title":196,"path":197,"stem":198,"icon":199},"ClickHouse","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fclickhouse","4.integrate\u002Fadapters\u002Fhybrid\u002F02.clickhouse","i-simple-icons-clickhouse",{"title":201,"path":202,"stem":203,"icon":204},"OTLP","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fotlp","4.integrate\u002Fadapters\u002Fhybrid\u002F03.otlp","i-simple-icons-opentelemetry",{"title":206,"path":207,"stem":208,"icon":209},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fhybrid\u002Fhyperdx","4.integrate\u002Fadapters\u002Fhybrid\u002F04.hyperdx","i-custom-hyperdx",{"title":211,"path":212,"stem":213,"children":214,"page":34},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","4.integrate\u002Fadapters\u002Fself-hosted",[215,220,225],{"title":216,"path":217,"stem":218,"icon":219},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","4.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":221,"path":222,"stem":223,"icon":224},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","4.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":226,"path":227,"stem":228,"icon":229},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","4.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":231,"path":232,"stem":233,"children":234,"page":34},"Frameworks","\u002Fintegrate\u002Fframeworks","4.integrate\u002Fframeworks",[235,239,244,249,254,259,264,269,274,279,284,289,294,299,303,308,313],{"title":41,"path":236,"stem":237,"icon":238},"\u002Fintegrate\u002Fframeworks\u002Foverview","4.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":240,"path":241,"stem":242,"icon":243},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","4.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":245,"path":246,"stem":247,"icon":248},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","4.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":250,"path":251,"stem":252,"icon":253},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","4.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":255,"path":256,"stem":257,"icon":258},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","4.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":260,"path":261,"stem":262,"icon":263},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","4.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":265,"path":266,"stem":267,"icon":268},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","4.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":270,"path":271,"stem":272,"icon":273},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","4.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":275,"path":276,"stem":277,"icon":278},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","4.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":280,"path":281,"stem":282,"icon":283},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","4.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":285,"path":286,"stem":287,"icon":288},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","4.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":290,"path":291,"stem":292,"icon":293},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","4.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":295,"path":296,"stem":297,"icon":298},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","4.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":300,"path":301,"stem":302,"icon":79},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","4.integrate\u002Fframeworks\u002F13.standalone",{"title":304,"path":305,"stem":306,"icon":307},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","4.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":309,"path":310,"stem":311,"icon":312},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","4.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":314,"path":315,"stem":316,"icon":317},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","4.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":319,"path":320,"stem":321,"children":322,"page":34},"Use Cases","\u002Fuse-cases","5.use-cases",[323,326,331,359,386,418,439,444,449,453],{"title":41,"path":324,"stem":325,"icon":107},"\u002Fuse-cases\u002Foverview","5.use-cases\u002F0.overview",{"title":327,"path":328,"stem":329,"icon":330},"Client Logging","\u002Fuse-cases\u002Fclient-logging","5.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":332,"icon":333,"path":334,"stem":335,"children":336,"page":34},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","5.use-cases\u002F2.ai-sdk",[337,340,345,350,355],{"title":41,"path":338,"stem":339,"icon":44},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","5.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":341,"path":342,"stem":343,"icon":344},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","5.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":346,"path":347,"stem":348,"icon":349},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","5.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":351,"path":352,"stem":353,"icon":354},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","5.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":356,"path":357,"stem":358,"icon":137},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","5.use-cases\u002F2.ai-sdk\u002F05.telemetry",{"title":360,"icon":361,"path":362,"stem":363,"children":364,"page":34},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","5.use-cases\u002F3.better-auth",[365,368,373,378,382],{"title":41,"path":366,"stem":367,"icon":44},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","5.use-cases\u002F3.better-auth\u002F01.overview",{"title":369,"path":370,"stem":371,"icon":372},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","5.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":374,"path":375,"stem":376,"icon":377},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","5.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":379,"path":380,"stem":381,"icon":330},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","5.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":383,"path":384,"stem":385,"icon":112},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","5.use-cases\u002F3.better-auth\u002F05.performance",{"title":387,"icon":388,"path":389,"stem":390,"children":391,"page":34},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","5.use-cases\u002F4.audit",[392,395,400,405,410,414],{"title":41,"path":393,"stem":394,"icon":44},"\u002Fuse-cases\u002Faudit\u002Foverview","5.use-cases\u002F4.audit\u002F01.overview",{"title":396,"path":397,"stem":398,"icon":399},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","5.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":401,"path":402,"stem":403,"icon":404},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","5.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":406,"path":407,"stem":408,"icon":409},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","5.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":411,"path":412,"stem":413,"icon":388},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","5.use-cases\u002F4.audit\u002F05.compliance",{"title":415,"path":416,"stem":417,"icon":84},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","5.use-cases\u002F4.audit\u002F06.recipes",{"title":356,"icon":112,"path":419,"stem":420,"children":421,"page":34},"\u002Fuse-cases\u002Ftelemetry","5.use-cases\u002F4.telemetry",[422,425,430,435],{"title":41,"path":423,"stem":424,"icon":44},"\u002Fuse-cases\u002Ftelemetry\u002Foverview","5.use-cases\u002F4.telemetry\u002F01.overview",{"title":426,"path":427,"stem":428,"icon":429},"Setup","\u002Fuse-cases\u002Ftelemetry\u002Fsetup","5.use-cases\u002F4.telemetry\u002F02.setup","i-lucide-wrench",{"title":431,"path":432,"stem":433,"icon":434},"Ingest","\u002Fuse-cases\u002Ftelemetry\u002Fingest","5.use-cases\u002F4.telemetry\u002F03.ingest","i-lucide-server",{"title":436,"path":437,"stem":438,"icon":84},"Reference","\u002Fuse-cases\u002Ftelemetry\u002Freference","5.use-cases\u002F4.telemetry\u002F04.reference",{"title":440,"path":441,"stem":442,"icon":443},"Enrichers","\u002Fuse-cases\u002Fenrichers","5.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":445,"path":446,"stem":447,"icon":448},"eve","\u002Fuse-cases\u002Feve","5.use-cases\u002F5.eve","i-custom-eve",{"title":450,"path":451,"stem":452,"icon":434},"Node.js request logging","\u002Fuse-cases\u002Fstructured-logging-nodejs","5.use-cases\u002F6.structured-logging-nodejs",{"title":454,"icon":455,"path":456,"stem":457,"children":458,"page":34},"Signals","i-lucide-scan-search","\u002Fuse-cases\u002Fsignals","5.use-cases\u002F7.signals",[459,462,467,472,475],{"title":41,"path":460,"stem":461,"icon":44},"\u002Fuse-cases\u002Fsignals\u002Foverview","5.use-cases\u002F7.signals\u002F01.overview",{"title":463,"path":464,"stem":465,"icon":466},"What You Can Ask","\u002Fuse-cases\u002Fsignals\u002Fask","5.use-cases\u002F7.signals\u002F02.ask","i-lucide-message-circle-question",{"title":468,"path":469,"stem":470,"icon":471},"What It Costs","\u002Fuse-cases\u002Fsignals\u002Fcost","5.use-cases\u002F7.signals\u002F03.cost","i-lucide-coins",{"title":436,"path":473,"stem":474,"icon":84},"\u002Fuse-cases\u002Fsignals\u002Freference","5.use-cases\u002F7.signals\u002F04.reference",{"title":415,"path":476,"stem":477,"icon":478},"\u002Fuse-cases\u002Fsignals\u002Frecipes","5.use-cases\u002F7.signals\u002F05.recipes","i-lucide-lightbulb",{"title":480,"path":481,"stem":482,"children":483,"page":34},"Extend","\u002Fextend","6.extend",[484,488,493,498,502,507,511,515,519,523,528,533],{"title":41,"path":485,"stem":486,"icon":487},"\u002Fextend\u002Foverview","6.extend\u002F0.overview","i-lucide-blocks",{"title":489,"path":490,"stem":491,"icon":492},"Stream","\u002Fextend\u002Fstream","6.extend\u002F1.stream","i-lucide-radio-tower",{"title":494,"path":495,"stem":496,"icon":497},"Custom framework","\u002Fextend\u002Fcustom-framework","6.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":499,"path":500,"stem":501,"icon":492},"Diagnostics channel","\u002Fextend\u002Fdiagnostics-channel","6.extend\u002F11.diagnostics-channel",{"title":503,"path":504,"stem":505,"icon":506},"FS reader","\u002Fextend\u002Ffs-reader","6.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":415,"path":508,"stem":509,"icon":510},"\u002Fextend\u002Fconsumer-recipes","6.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":512,"path":513,"stem":514,"icon":487},"Plugins","\u002Fextend\u002Fplugins","6.extend\u002F4.plugins",{"title":516,"path":517,"stem":518,"icon":443},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","6.extend\u002F5.custom-enrichers",{"title":520,"path":521,"stem":522,"icon":69},"Tail sampling","\u002Fextend\u002Ftail-sampling","6.extend\u002F6.tail-sampling",{"title":524,"path":525,"stem":526,"icon":527},"Identity headers","\u002Fextend\u002Fidentity-headers","6.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":529,"path":530,"stem":531,"icon":532},"Custom drains","\u002Fextend\u002Fcustom-drains","6.extend\u002F8.custom-drains","i-lucide-share-2",{"title":534,"path":535,"stem":536,"icon":537},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","6.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":436,"path":539,"stem":540,"children":541,"page":34},"\u002Freference","7.reference",[542,546,551,554,559,563,568,572],{"title":41,"path":543,"stem":544,"icon":545},"\u002Freference\u002Foverview","7.reference\u002F0.overview","i-lucide-book-marked",{"title":547,"path":548,"stem":549,"icon":550},"Configuration","\u002Freference\u002Fconfiguration","7.reference\u002F1.configuration","i-lucide-settings",{"title":383,"path":552,"stem":553,"icon":112},"\u002Freference\u002Fperformance","7.reference\u002F2.performance",{"title":555,"path":556,"stem":557,"icon":558},"Vite Plugin","\u002Freference\u002Fvite-plugin","7.reference\u002F3.vite-plugin","i-custom-vite",{"title":560,"path":561,"stem":562,"icon":388},"Best Practices","\u002Freference\u002Fbest-practices","7.reference\u002F4.best-practices",{"title":564,"path":565,"stem":566,"icon":567},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","7.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":569,"path":570,"stem":571,"icon":443},"Agent Skills","\u002Freference\u002Fagent-skills","7.reference\u002F6.agent-skills",{"title":573,"path":574,"stem":575,"icon":576},"Cost","\u002Freference\u002Fcost","7.reference\u002F7.cost","i-lucide-receipt",{"title":578,"path":579,"stem":580,"children":581,"page":34},"Compare","\u002Fcompare","8.compare",[582,586,590,594,598],{"title":583,"path":584,"stem":585,"icon":567},"evlog vs Pino","\u002Fcompare\u002Fpino","8.compare\u002F1.pino",{"title":587,"path":588,"stem":589,"icon":204},"evlog vs OpenTelemetry","\u002Fcompare\u002Fopentelemetry","8.compare\u002F2.opentelemetry",{"title":591,"path":592,"stem":593,"icon":567},"evlog vs LogTape","\u002Fcompare\u002Flogtape","8.compare\u002F3.logtape",{"title":595,"path":596,"stem":597,"icon":567},"evlog vs Winston: formats and request events","\u002Fcompare\u002Fwinston","8.compare\u002F4.winston",{"title":599,"path":600,"stem":601,"icon":567},"evlog vs Consola: reporters and request context","\u002Fcompare\u002Fconsola","8.compare\u002F5.consola",{"id":603,"title":604,"body":605,"description":1474,"extension":1475,"links":1476,"meta":1481,"navigation":1482,"path":407,"seo":1483,"stem":408,"__hash__":1484},"docs\u002F5.use-cases\u002F4.audit\u002F04.pipeline.md","Drains & Integrity",{"type":606,"value":607,"toc":1466},"minimark",[608,625,632,641,728,731,854,872,878,898,912,1049,1056,1108,1114,1119,1125,1182,1199,1204,1207,1282,1286,1289,1438,1444,1447,1462],[609,610,611,612,616,617,620,621,624],"p",{},"Three building blocks: ",[613,614,615],"code",{},"auditEnricher"," fills context, ",[613,618,619],{},"auditOnly"," routes audits to a dedicated drain, and ",[613,622,623],{},"signed"," adds tamper-evident integrity. Each is opt-in and replaceable.",[626,627,629],"h2",{"id":628},"auditenricher",[613,630,631],{},"auditEnricher()",[609,633,634,636,637,640],{},[613,635,631],{}," populates ",[613,638,639],{},"event.audit.context.{requestId, traceId, ip, userAgent, tenantId}",". Skip it and ship a custom enricher if your strategy differs.",[642,643,649],"pre",{"className":644,"code":645,"filename":646,"language":647,"meta":648,"style":648},"language-typescript shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { auditEnricher } from 'evlog'\n\nnitro.hooks.hook('evlog:enrich', auditEnricher())\n","server\u002Fplugins\u002Fevlog.ts","typescript","",[613,650,651,684,691],{"__ignoreMap":648},[652,653,656,660,664,668,671,674,677,681],"span",{"class":654,"line":655},"line",1,[652,657,659],{"class":658},"s7zQu","import",[652,661,663],{"class":662},"sMK4o"," {",[652,665,667],{"class":666},"sTEyZ"," auditEnricher",[652,669,670],{"class":662}," }",[652,672,673],{"class":658}," from",[652,675,676],{"class":662}," '",[652,678,680],{"class":679},"sfazB","evlog",[652,682,683],{"class":662},"'\n",[652,685,687],{"class":654,"line":686},2,[652,688,690],{"emptyLinePlaceholder":689},true,"\n",[652,692,694,697,700,703,705,709,712,715,718,720,723,725],{"class":654,"line":693},3,[652,695,696],{"class":666},"nitro",[652,698,699],{"class":662},".",[652,701,702],{"class":666},"hooks",[652,704,699],{"class":662},[652,706,708],{"class":707},"s2Zo4","hook",[652,710,711],{"class":666},"(",[652,713,714],{"class":662},"'",[652,716,717],{"class":679},"evlog:enrich",[652,719,714],{"class":662},[652,721,722],{"class":662},",",[652,724,667],{"class":707},[652,726,727],{"class":666},"())\n",[609,729,730],{},"For multi-tenant apps and custom session bridges, pass options:",[642,732,734],{"className":644,"code":733,"language":647,"meta":648,"style":648},"nitro.hooks.hook('evlog:enrich', auditEnricher({\n  tenantId: ctx => ctx.event.tenant as string | undefined,\n  bridge: { getSession: async ctx => readSessionActor(ctx.headers) },\n}))\n",[613,735,736,765,809,845],{"__ignoreMap":648},[652,737,738,740,742,744,746,748,750,752,754,756,758,760,762],{"class":654,"line":655},[652,739,696],{"class":666},[652,741,699],{"class":662},[652,743,702],{"class":666},[652,745,699],{"class":662},[652,747,708],{"class":707},[652,749,711],{"class":666},[652,751,714],{"class":662},[652,753,717],{"class":679},[652,755,714],{"class":662},[652,757,722],{"class":662},[652,759,667],{"class":707},[652,761,711],{"class":666},[652,763,764],{"class":662},"{\n",[652,766,767,770,773,777,781,783,785,788,790,793,796,800,803,806],{"class":654,"line":686},[652,768,769],{"class":707},"  tenantId",[652,771,772],{"class":662},":",[652,774,776],{"class":775},"sHdIc"," ctx",[652,778,780],{"class":779},"spNyl"," =>",[652,782,776],{"class":666},[652,784,699],{"class":662},[652,786,787],{"class":666},"event",[652,789,699],{"class":662},[652,791,792],{"class":666},"tenant ",[652,794,795],{"class":658},"as",[652,797,799],{"class":798},"sBMFI"," string",[652,801,802],{"class":662}," |",[652,804,805],{"class":798}," undefined",[652,807,808],{"class":662},",\n",[652,810,811,815,817,819,822,824,827,829,831,834,837,839,842],{"class":654,"line":693},[652,812,814],{"class":813},"swJcz","  bridge",[652,816,772],{"class":662},[652,818,663],{"class":662},[652,820,821],{"class":707}," getSession",[652,823,772],{"class":662},[652,825,826],{"class":779}," async",[652,828,776],{"class":775},[652,830,780],{"class":779},[652,832,833],{"class":707}," readSessionActor",[652,835,836],{"class":666},"(ctx",[652,838,699],{"class":662},[652,840,841],{"class":666},"headers) ",[652,843,844],{"class":662},"},\n",[652,846,848,851],{"class":654,"line":847},4,[652,849,850],{"class":662},"}",[652,852,853],{"class":666},"))\n",[609,855,856,857,859,860,863,864,867,868,871],{},"Without ",[613,858,615],{},", ",[613,861,862],{},"audit.context"," stays empty, and auditors and incident responders need at least ",[613,865,866],{},"requestId"," and ",[613,869,870],{},"ip"," to triangulate a recorded action.",[626,873,875],{"id":874},"auditonly",[613,876,877],{},"auditOnly()",[879,880,881,885,886,889,890,893,894,897],"tip",{},[882,883,884],"strong",{},"Why filter audits to a separate drain?"," Three reasons: ",[882,887,888],{},"cost"," (audit volume is tiny next to product telemetry, so keep them separate and retention costs don't explode), ",[882,891,892],{},"permissions"," (the audit dataset should be read-only for engineers and write-only for the app), and ",[882,895,896],{},"retention"," (audits often live 7+ years; product logs rarely live more than 90 days).",[609,899,900,903,904,907,908,911],{},[613,901,902],{},"auditOnly(drain)"," only forwards events with an ",[613,905,906],{},"audit"," field. Compose with ",[882,909,910],{},"any"," drain:",[642,913,915],{"className":644,"code":914,"language":647,"meta":648,"style":648},"import { auditOnly } from 'evlog'\nimport { createAxiomDrain } from 'evlog\u002Faxiom'\n\n\u002F\u002F Send audits to a dedicated Axiom dataset:\nnitro.hooks.hook('evlog:drain', auditOnly(\n  createAxiomDrain({ dataset: 'audit', apiKey: process.env.AXIOM_AUDIT_API_KEY }),\n))\n",[613,916,917,936,956,960,966,995,1044],{"__ignoreMap":648},[652,918,919,921,923,926,928,930,932,934],{"class":654,"line":655},[652,920,659],{"class":658},[652,922,663],{"class":662},[652,924,925],{"class":666}," auditOnly",[652,927,670],{"class":662},[652,929,673],{"class":658},[652,931,676],{"class":662},[652,933,680],{"class":679},[652,935,683],{"class":662},[652,937,938,940,942,945,947,949,951,954],{"class":654,"line":686},[652,939,659],{"class":658},[652,941,663],{"class":662},[652,943,944],{"class":666}," createAxiomDrain",[652,946,670],{"class":662},[652,948,673],{"class":658},[652,950,676],{"class":662},[652,952,953],{"class":679},"evlog\u002Faxiom",[652,955,683],{"class":662},[652,957,958],{"class":654,"line":693},[652,959,690],{"emptyLinePlaceholder":689},[652,961,962],{"class":654,"line":847},[652,963,965],{"class":964},"sHwdD","\u002F\u002F Send audits to a dedicated Axiom dataset:\n",[652,967,969,971,973,975,977,979,981,983,986,988,990,992],{"class":654,"line":968},5,[652,970,696],{"class":666},[652,972,699],{"class":662},[652,974,702],{"class":666},[652,976,699],{"class":662},[652,978,708],{"class":707},[652,980,711],{"class":666},[652,982,714],{"class":662},[652,984,985],{"class":679},"evlog:drain",[652,987,714],{"class":662},[652,989,722],{"class":662},[652,991,925],{"class":707},[652,993,994],{"class":666},"(\n",[652,996,998,1001,1003,1006,1009,1011,1013,1015,1017,1019,1022,1024,1027,1029,1032,1034,1037,1039,1042],{"class":654,"line":997},6,[652,999,1000],{"class":707},"  createAxiomDrain",[652,1002,711],{"class":666},[652,1004,1005],{"class":662},"{",[652,1007,1008],{"class":813}," dataset",[652,1010,772],{"class":662},[652,1012,676],{"class":662},[652,1014,906],{"class":679},[652,1016,714],{"class":662},[652,1018,722],{"class":662},[652,1020,1021],{"class":813}," apiKey",[652,1023,772],{"class":662},[652,1025,1026],{"class":666}," process",[652,1028,699],{"class":662},[652,1030,1031],{"class":666},"env",[652,1033,699],{"class":662},[652,1035,1036],{"class":666},"AXIOM_AUDIT_API_KEY ",[652,1038,850],{"class":662},[652,1040,1041],{"class":666},")",[652,1043,808],{"class":662},[652,1045,1047],{"class":654,"line":1046},7,[652,1048,853],{"class":666},[609,1050,1051,1052,1055],{},"Set ",[613,1053,1054],{},"await: true"," to make audit writes synchronous (no fire-and-forget for audits, so crash-safe by default):",[642,1057,1059],{"className":644,"code":1058,"language":647,"meta":648,"style":648},"auditOnly(createFsDrain({ dir: '.audit' }), { await: true })\n",[613,1060,1061],{"__ignoreMap":648},[652,1062,1063,1065,1067,1070,1072,1074,1077,1079,1081,1084,1086,1088,1090,1092,1094,1097,1099,1103,1105],{"class":654,"line":655},[652,1064,619],{"class":707},[652,1066,711],{"class":666},[652,1068,1069],{"class":707},"createFsDrain",[652,1071,711],{"class":666},[652,1073,1005],{"class":662},[652,1075,1076],{"class":813}," dir",[652,1078,772],{"class":662},[652,1080,676],{"class":662},[652,1082,1083],{"class":679},".audit",[652,1085,714],{"class":662},[652,1087,670],{"class":662},[652,1089,1041],{"class":666},[652,1091,722],{"class":662},[652,1093,663],{"class":662},[652,1095,1096],{"class":813}," await",[652,1098,772],{"class":662},[652,1100,1102],{"class":1101},"sfNiH"," true",[652,1104,670],{"class":662},[652,1106,1107],{"class":666},")\n",[609,1109,1110,1111,1113],{},"The ",[613,1112,1054],{}," flag costs you a small bit of latency per request that records an audit (one synchronous drain call), but guarantees the audit hits disk before the response is sent. For compliance-grade audits, the trade-off is always worth it.",[626,1115,1116],{"id":623},[613,1117,1118],{},"signed()",[609,1120,1121,1124],{},[613,1122,1123],{},"signed(drain, opts)"," adds tamper-evident integrity. Two strategies:",[1126,1127,1128,1144],"table",{},[1129,1130,1131],"thead",{},[1132,1133,1134,1138,1141],"tr",{},[1135,1136,1137],"th",{},"Strategy",[1135,1139,1140],{},"What it adds",[1135,1142,1143],{},"Use case",[1145,1146,1147,1164],"tbody",{},[1132,1148,1149,1155,1161],{},[1150,1151,1152],"td",{},[613,1153,1154],{},"'hmac'",[1150,1156,1157,1160],{},[613,1158,1159],{},"event.audit.signature"," (HMAC of the canonical event)",[1150,1162,1163],{},"Single-event integrity check (any later mutation fails verification).",[1132,1165,1166,1171,1179],{},[1150,1167,1168],{},[613,1169,1170],{},"'hash-chain'",[1150,1172,1173,867,1176],{},[613,1174,1175],{},"event.audit.prevHash",[613,1177,1178],{},"event.audit.hash",[1150,1180,1181],{},"A verifiable chain — deletions and reordering also become detectable.",[879,1183,1184,1190,1191,1195,1196,1198],{},[882,1185,1186,1187,1189],{},"What ",[613,1188,1118],{}," actually buys you."," Detection, not prevention. Anyone with write access to the underlying drain can still nuke the file or table, but the chain proves ",[1192,1193,1194],"em",{},"which"," events were dropped or modified after the fact. Skip ",[613,1197,1118],{}," if you already write to an append-only \u002F WORM store (S3 Object Lock, Postgres with row-level immutability, BigQuery append-only tables); doubling integrity layers just adds latency without raising the bar.",[1200,1201,1203],"h3",{"id":1202},"hmac","HMAC",[609,1205,1206],{},"Each event gets a signature. Tampering with one row breaks that row's verification, but doesn't break later rows.",[642,1208,1210],{"className":644,"code":1209,"language":647,"meta":648,"style":648},"import { signed } from 'evlog'\n\nsigned(drain, { strategy: 'hmac', secret: process.env.AUDIT_SECRET! })\n",[613,1211,1212,1231,1235],{"__ignoreMap":648},[652,1213,1214,1216,1218,1221,1223,1225,1227,1229],{"class":654,"line":655},[652,1215,659],{"class":658},[652,1217,663],{"class":662},[652,1219,1220],{"class":666}," signed",[652,1222,670],{"class":662},[652,1224,673],{"class":658},[652,1226,676],{"class":662},[652,1228,680],{"class":679},[652,1230,683],{"class":662},[652,1232,1233],{"class":654,"line":686},[652,1234,690],{"emptyLinePlaceholder":689},[652,1236,1237,1239,1242,1244,1246,1249,1251,1253,1255,1257,1259,1262,1264,1266,1268,1270,1272,1275,1278,1280],{"class":654,"line":693},[652,1238,623],{"class":707},[652,1240,1241],{"class":666},"(drain",[652,1243,722],{"class":662},[652,1245,663],{"class":662},[652,1247,1248],{"class":813}," strategy",[652,1250,772],{"class":662},[652,1252,676],{"class":662},[652,1254,1202],{"class":679},[652,1256,714],{"class":662},[652,1258,722],{"class":662},[652,1260,1261],{"class":813}," secret",[652,1263,772],{"class":662},[652,1265,1026],{"class":666},[652,1267,699],{"class":662},[652,1269,1031],{"class":666},[652,1271,699],{"class":662},[652,1273,1274],{"class":666},"AUDIT_SECRET",[652,1276,1277],{"class":662},"!",[652,1279,670],{"class":662},[652,1281,1107],{"class":666},[1200,1283,1285],{"id":1284},"hash-chain","Hash-chain",[609,1287,1288],{},"Each event references the previous event's hash. Deleting any row breaks the chain forward of that point, so the verifier can pinpoint the exact row that was tampered with.",[642,1290,1292],{"className":644,"code":1291,"language":647,"meta":648,"style":648},"signed(drain, {\n  strategy: 'hash-chain',\n  state: {\n    load: () => fs.readFile('.audit\u002Fhead', 'utf8').catch(() => null),\n    save: (h) => fs.writeFile('.audit\u002Fhead', h),\n  },\n})\n",[613,1293,1294,1305,1320,1329,1388,1427,1432],{"__ignoreMap":648},[652,1295,1296,1298,1300,1302],{"class":654,"line":655},[652,1297,623],{"class":707},[652,1299,1241],{"class":666},[652,1301,722],{"class":662},[652,1303,1304],{"class":662}," {\n",[652,1306,1307,1310,1312,1314,1316,1318],{"class":654,"line":686},[652,1308,1309],{"class":813},"  strategy",[652,1311,772],{"class":662},[652,1313,676],{"class":662},[652,1315,1284],{"class":679},[652,1317,714],{"class":662},[652,1319,808],{"class":662},[652,1321,1322,1325,1327],{"class":654,"line":693},[652,1323,1324],{"class":813},"  state",[652,1326,772],{"class":662},[652,1328,1304],{"class":662},[652,1330,1331,1334,1336,1339,1341,1344,1346,1349,1351,1353,1356,1358,1360,1362,1365,1367,1369,1371,1374,1376,1379,1381,1384,1386],{"class":654,"line":847},[652,1332,1333],{"class":707},"    load",[652,1335,772],{"class":662},[652,1337,1338],{"class":662}," ()",[652,1340,780],{"class":779},[652,1342,1343],{"class":666}," fs",[652,1345,699],{"class":662},[652,1347,1348],{"class":707},"readFile",[652,1350,711],{"class":666},[652,1352,714],{"class":662},[652,1354,1355],{"class":679},".audit\u002Fhead",[652,1357,714],{"class":662},[652,1359,722],{"class":662},[652,1361,676],{"class":662},[652,1363,1364],{"class":679},"utf8",[652,1366,714],{"class":662},[652,1368,1041],{"class":666},[652,1370,699],{"class":662},[652,1372,1373],{"class":707},"catch",[652,1375,711],{"class":666},[652,1377,1378],{"class":662},"()",[652,1380,780],{"class":779},[652,1382,1383],{"class":662}," null",[652,1385,1041],{"class":666},[652,1387,808],{"class":662},[652,1389,1390,1393,1395,1398,1401,1403,1405,1407,1409,1412,1414,1416,1418,1420,1422,1425],{"class":654,"line":968},[652,1391,1392],{"class":707},"    save",[652,1394,772],{"class":662},[652,1396,1397],{"class":662}," (",[652,1399,1400],{"class":775},"h",[652,1402,1041],{"class":662},[652,1404,780],{"class":779},[652,1406,1343],{"class":666},[652,1408,699],{"class":662},[652,1410,1411],{"class":707},"writeFile",[652,1413,711],{"class":666},[652,1415,714],{"class":662},[652,1417,1355],{"class":679},[652,1419,714],{"class":662},[652,1421,722],{"class":662},[652,1423,1424],{"class":666}," h)",[652,1426,808],{"class":662},[652,1428,1429],{"class":654,"line":997},[652,1430,1431],{"class":662},"  },\n",[652,1433,1434,1436],{"class":654,"line":1046},[652,1435,850],{"class":662},[652,1437,1107],{"class":666},[609,1439,1110,1440,1443],{},[613,1441,1442],{},"state"," config is required for cross-process or durable chains: load the previous head hash from your own store (Redis, Postgres, file) before each event, save the new head after.",[1445,1446],"hash-chain-tamper",{},[1448,1449,1450,1451,1454,1455,1458,1459,699],"note",{},"A CLI to walk and verify the chain (",[613,1452,1453],{},"evlog audit verify",") is on the roadmap. Until then, validate by recomputing the hashes of stored events and comparing each ",[613,1456,1457],{},"prevHash"," against the previous event's ",[613,1460,1461],{},"hash",[1463,1464,1465],"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 .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 .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 .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}html pre.shiki code .sBMFI, html code.shiki .sBMFI{--shiki-light:#E2931D;--shiki-default:#FFCB6B;--shiki-dark:#FFCB6B}html pre.shiki code .swJcz, html code.shiki .swJcz{--shiki-light:#E53935;--shiki-default:#F07178;--shiki-dark:#F07178}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 pre.shiki code .sfNiH, html code.shiki .sfNiH{--shiki-light:#FF5370;--shiki-default:#FF9CAC;--shiki-dark:#FF9CAC}",{"title":648,"searchDepth":686,"depth":686,"links":1467},[1468,1469,1470],{"id":628,"depth":686,"text":631},{"id":874,"depth":686,"text":877},{"id":623,"depth":686,"text":1118,"children":1471},[1472,1473],{"id":1202,"depth":693,"text":1203},{"id":1284,"depth":693,"text":1285},"auditEnricher to auto-fill request context, auditOnly to route audits to a dedicated sink, and signed for tamper-evident HMAC or hash-chain integrity.","md",[1477,1480],{"label":401,"icon":404,"to":402,"color":1478,"variant":1479},"neutral","subtle",{"label":411,"icon":388,"to":412,"color":1478,"variant":1479},{},{"title":406,"icon":409},{"title":604,"description":1474},"WI5PxDhrlvhYfEuMQgg2UskCQMzYyzy0zO1tSUZXMY4",[1486,1488],{"title":401,"path":402,"stem":403,"description":1487,"icon":404,"children":-1},"log.audit and log.audit.deny, standalone audit(), withAudit, the defineAuditAction and defineAuditCatalog registries, and auditDiff.",{"title":411,"path":412,"stem":413,"description":1489,"icon":388,"children":-1},"Integrity, redact presets, GDPR vs append-only, retention windows, and the most common pitfalls when shipping audit logs to production.",1791060985423]