[{"data":1,"prerenderedAt":1435},["ShallowReactive",2],{"navigation_docs":3,"-logging-audit-pipeline":547,"-logging-audit-pipeline-surround":1430},[4,35,159,201,289,446,531],{"title":5,"path":6,"stem":7,"children":8,"page":34},"Getting Started","\u002Fgetting-started","1.getting-started",[9,14,19,24,29],{"title":10,"path":11,"stem":12,"icon":13},"Introduction","\u002Fgetting-started\u002Fintroduction","1.getting-started\u002F1.introduction","i-lucide-info",{"title":15,"path":16,"stem":17,"icon":18},"Installation","\u002Fgetting-started\u002Finstallation","1.getting-started\u002F2.installation","i-lucide-download",{"title":20,"path":21,"stem":22,"icon":23},"Quick Start","\u002Fgetting-started\u002Fquick-start","1.getting-started\u002F3.quick-start","i-lucide-zap",{"title":25,"path":26,"stem":27,"icon":28},"Agent Skills","\u002Fgetting-started\u002Fagent-skills","1.getting-started\u002F4.agent-skills","i-lucide-sparkles",{"title":30,"path":31,"stem":32,"icon":33},"vs Other Loggers","\u002Fgetting-started\u002Fvs-other-loggers","1.getting-started\u002F5.vs-other-loggers","i-lucide-scale",false,{"title":36,"path":37,"stem":38,"children":39,"page":34},"Logging","\u002Flogging","2.logging",[40,45,50,55,60,65,70,99,127],{"title":41,"path":42,"stem":43,"icon":44},"Overview","\u002Flogging\u002Foverview","2.logging\u002F0.overview","i-lucide-list",{"title":46,"path":47,"stem":48,"icon":49},"Simple Logging","\u002Flogging\u002Fsimple-logging","2.logging\u002F1.simple-logging","i-lucide-terminal",{"title":51,"path":52,"stem":53,"icon":54},"Wide Events","\u002Flogging\u002Fwide-events","2.logging\u002F2.wide-events","i-lucide-layers",{"title":56,"path":57,"stem":58,"icon":59},"Structured Errors","\u002Flogging\u002Fstructured-errors","2.logging\u002F3.structured-errors","i-lucide-shield-alert",{"title":61,"path":62,"stem":63,"icon":64},"Catalogs","\u002Flogging\u002Fcatalogs","2.logging\u002F4.catalogs","i-lucide-book-open",{"title":66,"path":67,"stem":68,"icon":69},"Client Logging","\u002Flogging\u002Fclient-logging","2.logging\u002F5.client-logging","i-lucide-monitor",{"title":71,"icon":72,"path":73,"stem":74,"children":75,"page":34},"AI SDK","i-simple-icons-vercel","\u002Flogging\u002Fai-sdk","2.logging\u002F6.ai-sdk",[76,79,84,89,94],{"title":41,"path":77,"stem":78,"icon":44},"\u002Flogging\u002Fai-sdk\u002Foverview","2.logging\u002F6.ai-sdk\u002F01.overview",{"title":80,"path":81,"stem":82,"icon":83},"Usage","\u002Flogging\u002Fai-sdk\u002Fusage","2.logging\u002F6.ai-sdk\u002F02.usage","i-lucide-code",{"title":85,"path":86,"stem":87,"icon":88},"Options","\u002Flogging\u002Fai-sdk\u002Foptions","2.logging\u002F6.ai-sdk\u002F03.options","i-lucide-sliders",{"title":90,"path":91,"stem":92,"icon":93},"Metadata","\u002Flogging\u002Fai-sdk\u002Fmetadata","2.logging\u002F6.ai-sdk\u002F04.metadata","i-lucide-database",{"title":95,"path":96,"stem":97,"icon":98},"Telemetry","\u002Flogging\u002Fai-sdk\u002Ftelemetry","2.logging\u002F6.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":100,"icon":101,"path":102,"stem":103,"children":104,"page":34},"Better Auth","i-simple-icons-betterauth","\u002Flogging\u002Fbetter-auth","2.logging\u002F7.better-auth",[105,108,113,118,122],{"title":41,"path":106,"stem":107,"icon":44},"\u002Flogging\u002Fbetter-auth\u002Foverview","2.logging\u002F7.better-auth\u002F01.overview",{"title":109,"path":110,"stem":111,"icon":112},"Identify User","\u002Flogging\u002Fbetter-auth\u002Fidentify-user","2.logging\u002F7.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":114,"path":115,"stem":116,"icon":117},"Middleware","\u002Flogging\u002Fbetter-auth\u002Fmiddleware","2.logging\u002F7.better-auth\u002F03.middleware","i-lucide-shield",{"title":119,"path":120,"stem":121,"icon":69},"Client Sync","\u002Flogging\u002Fbetter-auth\u002Fclient-sync","2.logging\u002F7.better-auth\u002F04.client-sync",{"title":123,"path":124,"stem":125,"icon":126},"Performance","\u002Flogging\u002Fbetter-auth\u002Fperformance","2.logging\u002F7.better-auth\u002F05.performance","i-lucide-gauge",{"title":128,"icon":129,"path":130,"stem":131,"children":132,"page":34},"Audit Logs","i-lucide-shield-check","\u002Flogging\u002Faudit","2.logging\u002F8.audit",[133,136,141,146,151,155],{"title":41,"path":134,"stem":135,"icon":44},"\u002Flogging\u002Faudit\u002Foverview","2.logging\u002F8.audit\u002F01.overview",{"title":137,"path":138,"stem":139,"icon":140},"Schema","\u002Flogging\u002Faudit\u002Fschema","2.logging\u002F8.audit\u002F02.schema","i-lucide-file-text",{"title":142,"path":143,"stem":144,"icon":145},"Recording","\u002Flogging\u002Faudit\u002Frecording","2.logging\u002F8.audit\u002F03.recording","i-lucide-pen-line",{"title":147,"path":148,"stem":149,"icon":150},"Drains","\u002Flogging\u002Faudit\u002Fpipeline","2.logging\u002F8.audit\u002F04.pipeline","i-lucide-link",{"title":152,"path":153,"stem":154,"icon":129},"Compliance","\u002Flogging\u002Faudit\u002Fcompliance","2.logging\u002F8.audit\u002F05.compliance",{"title":156,"path":157,"stem":158,"icon":64},"Recipes","\u002Flogging\u002Faudit\u002Frecipes","2.logging\u002F8.audit\u002F06.recipes",{"title":160,"path":161,"stem":162,"children":163,"page":34},"Core Concepts","\u002Fcore-concepts","3.core-concepts",[164,169,174,179,184,188,191,196],{"title":165,"path":166,"stem":167,"icon":168},"Lifecycle","\u002Fcore-concepts\u002Flifecycle","3.core-concepts\u002F0.lifecycle","i-lucide-arrow-right-left",{"title":170,"path":171,"stem":172,"icon":173},"Configuration","\u002Fcore-concepts\u002Fconfiguration","3.core-concepts\u002F1.configuration","i-lucide-settings",{"title":175,"path":176,"stem":177,"icon":178},"Sampling","\u002Fcore-concepts\u002Fsampling","3.core-concepts\u002F2.sampling","i-lucide-filter",{"title":180,"path":181,"stem":182,"icon":183},"Typed Fields","\u002Fcore-concepts\u002Ftyped-fields","3.core-concepts\u002F3.typed-fields","i-simple-icons-typescript",{"title":185,"path":186,"stem":187,"icon":129},"Best Practices","\u002Fcore-concepts\u002Fbest-practices","3.core-concepts\u002F4.best-practices",{"title":123,"path":189,"stem":190,"icon":126},"\u002Fcore-concepts\u002Fperformance","3.core-concepts\u002F5.performance",{"title":192,"path":193,"stem":194,"icon":195},"Vite Plugin","\u002Fcore-concepts\u002Fvite-plugin","3.core-concepts\u002F6.vite-plugin","i-custom-vite",{"title":197,"path":198,"stem":199,"icon":200},"Auto-Redaction","\u002Fcore-concepts\u002Fredaction","3.core-concepts\u002F7.redaction","i-lucide-eye-off",{"title":202,"path":203,"stem":204,"children":205,"page":34},"Frameworks","\u002Fframeworks","4.frameworks",[206,210,215,220,225,230,235,240,245,250,255,260,265,270,274,279,284],{"title":41,"path":207,"stem":208,"icon":209},"\u002Fframeworks\u002Foverview","4.frameworks\u002F00.overview","i-lucide-layout-grid",{"title":211,"path":212,"stem":213,"icon":214},"Nuxt","\u002Fframeworks\u002Fnuxt","4.frameworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":216,"path":217,"stem":218,"icon":219},"Next.js","\u002Fframeworks\u002Fnextjs","4.frameworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":221,"path":222,"stem":223,"icon":224},"SvelteKit","\u002Fframeworks\u002Fsveltekit","4.frameworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":226,"path":227,"stem":228,"icon":229},"Nitro","\u002Fframeworks\u002Fnitro","4.frameworks\u002F04.nitro","i-custom-nitro",{"title":231,"path":232,"stem":233,"icon":234},"TanStack Start","\u002Fframeworks\u002Ftanstack-start","4.frameworks\u002F05.tanstack-start","i-custom-tanstack",{"title":236,"path":237,"stem":238,"icon":239},"NestJS","\u002Fframeworks\u002Fnestjs","4.frameworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":241,"path":242,"stem":243,"icon":244},"Express","\u002Fframeworks\u002Fexpress","4.frameworks\u002F07.express","i-simple-icons-express",{"title":246,"path":247,"stem":248,"icon":249},"Hono","\u002Fframeworks\u002Fhono","4.frameworks\u002F08.hono","i-simple-icons-hono",{"title":251,"path":252,"stem":253,"icon":254},"Fastify","\u002Fframeworks\u002Ffastify","4.frameworks\u002F09.fastify","i-simple-icons-fastify",{"title":256,"path":257,"stem":258,"icon":259},"Elysia","\u002Fframeworks\u002Felysia","4.frameworks\u002F10.elysia","i-custom-elysia",{"title":261,"path":262,"stem":263,"icon":264},"React Router","\u002Fframeworks\u002Freact-router","4.frameworks\u002F11.react-router","i-custom-reactrouter",{"title":266,"path":267,"stem":268,"icon":269},"Cloudflare Workers","\u002Fframeworks\u002Fcloudflare-workers","4.frameworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":271,"path":272,"stem":273,"icon":183},"Standalone","\u002Fframeworks\u002Fstandalone","4.frameworks\u002F13.standalone",{"title":275,"path":276,"stem":277,"icon":278},"Astro","\u002Fframeworks\u002Fastro","4.frameworks\u002F14.astro","i-simple-icons-astro",{"title":280,"path":281,"stem":282,"icon":283},"AWS Lambda","\u002Fframeworks\u002Faws-lambda","4.frameworks\u002F16.aws-lambda","i-custom-lambda",{"title":285,"path":286,"stem":287,"icon":288},"Custom Integration","\u002Fframeworks\u002Fcustom-integration","4.frameworks\u002F17.custom-integration","i-lucide-puzzle",{"title":290,"path":291,"stem":292,"children":293,"page":34},"Build on top","\u002Fbuild-on-top","5.build-on-top",[294,297,325,346,373,400,428],{"title":41,"path":295,"stem":296,"icon":54},"\u002Fbuild-on-top\u002Foverview","5.build-on-top\u002F0.overview",{"title":298,"path":299,"stem":300,"children":301,"page":34},"Observers","\u002Fbuild-on-top\u002Fobservers","5.build-on-top\u002Fobservers",[302,306,311,316,321],{"title":41,"path":303,"stem":304,"icon":305},"\u002Fbuild-on-top\u002Fobservers\u002Foverview","5.build-on-top\u002Fobservers\u002F1.overview","i-lucide-eye",{"title":307,"path":308,"stem":309,"icon":310},"Stream API","\u002Fbuild-on-top\u002Fobservers\u002Fin-process-stream","5.build-on-top\u002Fobservers\u002F2.in-process-stream","i-lucide-radio-tower",{"title":312,"path":313,"stem":314,"icon":315},"Stream server","\u002Fbuild-on-top\u002Fobservers\u002Fstream-server","5.build-on-top\u002Fobservers\u002F3.stream-server","i-lucide-radio",{"title":317,"path":318,"stem":319,"icon":320},"FS reader","\u002Fbuild-on-top\u002Fobservers\u002Ffs-reader","5.build-on-top\u002Fobservers\u002F4.fs-reader","i-lucide-folder-search",{"title":156,"path":322,"stem":323,"icon":324},"\u002Fbuild-on-top\u002Fobservers\u002Fconsumer-recipes","5.build-on-top\u002Fobservers\u002F5.consumer-recipes","i-lucide-chef-hat",{"title":326,"path":327,"stem":328,"children":329,"page":34},"Pipeline","\u002Fbuild-on-top\u002Fpipeline","5.build-on-top\u002Fpipeline",[330,334,338,342],{"title":41,"path":331,"stem":332,"icon":333},"\u002Fbuild-on-top\u002Fpipeline\u002Foverview","5.build-on-top\u002Fpipeline\u002F1.overview","i-lucide-workflow",{"title":335,"path":336,"stem":337,"icon":288},"Plugins","\u002Fbuild-on-top\u002Fpipeline\u002Fplugins","5.build-on-top\u002Fpipeline\u002F2.plugins",{"title":339,"path":340,"stem":341,"icon":28},"Custom enrichers","\u002Fbuild-on-top\u002Fpipeline\u002Fcustom-enrichers","5.build-on-top\u002Fpipeline\u002F3.custom-enrichers",{"title":343,"path":344,"stem":345,"icon":178},"Tail sampling","\u002Fbuild-on-top\u002Fpipeline\u002Ftail-sampling","5.build-on-top\u002Fpipeline\u002F4.tail-sampling",{"title":347,"path":348,"stem":349,"children":350,"page":34},"Scenarios","\u002Fbuild-on-top\u002Fscenarios","5.build-on-top\u002Fscenarios",[351,355,359,364,368],{"title":41,"path":352,"stem":353,"icon":354},"\u002Fbuild-on-top\u002Fscenarios\u002Foverview","5.build-on-top\u002Fscenarios\u002F0.overview","i-lucide-clipboard-list",{"title":356,"path":357,"stem":358,"icon":49},"Local debugging toolkit","\u002Fbuild-on-top\u002Fscenarios\u002Flocal-debugging-toolkit","5.build-on-top\u002Fscenarios\u002F1.local-debugging-toolkit",{"title":360,"path":361,"stem":362,"icon":363},"Tenant-aware logging","\u002Fbuild-on-top\u002Fscenarios\u002Ftenant-aware-logging","5.build-on-top\u002Fscenarios\u002F2.tenant-aware-logging","i-lucide-users",{"title":365,"path":366,"stem":367,"icon":129},"Compliance audit","\u002Fbuild-on-top\u002Fscenarios\u002Fcompliance-audit","5.build-on-top\u002Fscenarios\u002F3.compliance-audit",{"title":369,"path":370,"stem":371,"icon":372},"Cross-app error vocab","\u002Fbuild-on-top\u002Fscenarios\u002Fcross-app-error-vocab","5.build-on-top\u002Fscenarios\u002F4.cross-app-error-vocab","i-lucide-book",{"title":374,"path":375,"stem":376,"children":377,"page":34},"Shared packages","\u002Fbuild-on-top\u002Fshared","5.build-on-top\u002Fshared",[378,382,386,391,395],{"title":41,"path":379,"stem":380,"icon":381},"\u002Fbuild-on-top\u002Fshared\u002Foverview","5.build-on-top\u002Fshared\u002F1.overview","i-lucide-package",{"title":383,"path":384,"stem":385,"icon":381},"Catalogs as packages","\u002Fbuild-on-top\u002Fshared\u002Fcatalogs-as-packages","5.build-on-top\u002Fshared\u002F2.catalogs-as-packages",{"title":387,"path":388,"stem":389,"icon":390},"Drains as packages","\u002Fbuild-on-top\u002Fshared\u002Fdrains-as-packages","5.build-on-top\u002Fshared\u002F3.drains-as-packages","i-lucide-package-2",{"title":392,"path":393,"stem":394,"icon":28},"Enrichers as packages","\u002Fbuild-on-top\u002Fshared\u002Fenrichers-as-packages","5.build-on-top\u002Fshared\u002F4.enrichers-as-packages",{"title":396,"path":397,"stem":398,"icon":399},"Integration as package","\u002Fbuild-on-top\u002Fshared\u002Fintegration-as-package","5.build-on-top\u002Fshared\u002F5.integration-as-package","i-lucide-package-check",{"title":401,"path":402,"stem":403,"children":404,"page":34},"Sinks","\u002Fbuild-on-top\u002Fsinks","5.build-on-top\u002Fsinks",[405,409,414,418,423],{"title":41,"path":406,"stem":407,"icon":408},"\u002Fbuild-on-top\u002Fsinks\u002Foverview","5.build-on-top\u002Fsinks\u002F1.overview","i-lucide-arrow-up-from-line",{"title":410,"path":411,"stem":412,"icon":413},"Custom drains","\u002Fbuild-on-top\u002Fsinks\u002Fcustom-drains","5.build-on-top\u002Fsinks\u002F2.custom-drains","i-lucide-code-2",{"title":415,"path":416,"stem":417,"icon":333},"Drain pipeline","\u002Fbuild-on-top\u002Fsinks\u002Fdrain-pipeline","5.build-on-top\u002Fsinks\u002F3.drain-pipeline",{"title":419,"path":420,"stem":421,"icon":422},"Identity headers","\u002Fbuild-on-top\u002Fsinks\u002Fidentity-headers","5.build-on-top\u002Fsinks\u002F4.identity-headers","i-lucide-fingerprint",{"title":424,"path":425,"stem":426,"icon":427},"Fanout","\u002Fbuild-on-top\u002Fsinks\u002Ffanout-and-multi-drain","5.build-on-top\u002Fsinks\u002F5.fanout-and-multi-drain","i-lucide-share-2",{"title":429,"path":430,"stem":431,"children":432,"page":34},"Sources","\u002Fbuild-on-top\u002Fsources","5.build-on-top\u002Fsources",[433,437,441],{"title":41,"path":434,"stem":435,"icon":436},"\u002Fbuild-on-top\u002Fsources\u002Foverview","5.build-on-top\u002Fsources\u002F1.overview","i-lucide-arrow-down-to-line",{"title":438,"path":439,"stem":440,"icon":288},"Custom framework","\u002Fbuild-on-top\u002Fsources\u002Fcustom-framework","5.build-on-top\u002Fsources\u002F2.custom-framework",{"title":442,"path":443,"stem":444,"icon":445},"Middleware toolkit","\u002Fbuild-on-top\u002Fsources\u002Fmiddleware-toolkit","5.build-on-top\u002Fsources\u002F3.middleware-toolkit","i-lucide-wrench",{"title":447,"path":448,"stem":449,"children":450,"page":34},"Adapters","\u002Fadapters","6.adapters",[451,454,494,509],{"title":41,"path":452,"stem":453,"icon":44},"\u002Fadapters\u002Foverview","6.adapters\u002F01.overview",{"title":455,"path":456,"stem":457,"children":458,"page":34},"Cloud destinations","\u002Fadapters\u002Fcloud","6.adapters\u002F02.cloud",[459,464,469,474,479,484,489],{"title":460,"path":461,"stem":462,"icon":463},"Axiom","\u002Fadapters\u002Fcloud\u002Faxiom","6.adapters\u002F02.cloud\u002F01.axiom","i-custom-axiom",{"title":465,"path":466,"stem":467,"icon":468},"OTLP","\u002Fadapters\u002Fcloud\u002Fotlp","6.adapters\u002F02.cloud\u002F02.otlp","i-simple-icons-opentelemetry",{"title":470,"path":471,"stem":472,"icon":473},"PostHog","\u002Fadapters\u002Fcloud\u002Fposthog","6.adapters\u002F02.cloud\u002F03.posthog","i-simple-icons-posthog",{"title":475,"path":476,"stem":477,"icon":478},"Sentry","\u002Fadapters\u002Fcloud\u002Fsentry","6.adapters\u002F02.cloud\u002F04.sentry","i-simple-icons-sentry",{"title":480,"path":481,"stem":482,"icon":483},"Better Stack","\u002Fadapters\u002Fcloud\u002Fbetter-stack","6.adapters\u002F02.cloud\u002F05.better-stack","i-simple-icons-betterstack",{"title":485,"path":486,"stem":487,"icon":488},"Datadog","\u002Fadapters\u002Fcloud\u002Fdatadog","6.adapters\u002F02.cloud\u002F06.datadog","i-simple-icons-datadog",{"title":490,"path":491,"stem":492,"icon":493},"HyperDX","\u002Fadapters\u002Fcloud\u002Fhyperdx","6.adapters\u002F02.cloud\u002F07.hyperdx","i-custom-hyperdx",{"title":495,"path":496,"stem":497,"children":498,"page":34},"Self-hosted","\u002Fadapters\u002Fself-hosted","6.adapters\u002F03.self-hosted",[499,504],{"title":500,"path":501,"stem":502,"icon":503},"File System","\u002Fadapters\u002Fself-hosted\u002Ffs","6.adapters\u002F03.self-hosted\u002F01.fs","i-lucide-hard-drive",{"title":505,"path":506,"stem":507,"icon":508},"NuxtHub","\u002Fadapters\u002Fself-hosted\u002Fnuxthub","6.adapters\u002F03.self-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":510,"path":511,"stem":512,"children":513,"page":34},"Building blocks","\u002Fadapters\u002Fbuilding-blocks","6.adapters\u002F04.building-blocks",[514,517,522,526],{"title":326,"path":515,"stem":516,"icon":333},"\u002Fadapters\u002Fbuilding-blocks\u002Fpipeline","6.adapters\u002F04.building-blocks\u002F01.pipeline",{"title":518,"path":519,"stem":520,"icon":521},"HTTP","\u002Fadapters\u002Fbuilding-blocks\u002Fhttp","6.adapters\u002F04.building-blocks\u002F02.http","i-lucide-globe",{"title":523,"path":524,"stem":525,"icon":83},"Custom Adapters","\u002Fadapters\u002Fbuilding-blocks\u002Fcustom","6.adapters\u002F04.building-blocks\u002F03.custom",{"title":527,"path":528,"stem":529,"icon":530},"Toolkit","\u002Fadapters\u002Fbuilding-blocks\u002Ftoolkit","6.adapters\u002F04.building-blocks\u002F04.toolkit","i-lucide-blocks",{"title":532,"path":533,"stem":534,"children":535,"page":34},"Enrichers","\u002Fenrichers","7.enrichers",[536,539,543],{"title":41,"path":537,"stem":538,"icon":28},"\u002Fenrichers\u002Foverview","7.enrichers\u002F1.overview",{"title":540,"path":541,"stem":542,"icon":288},"Built-in","\u002Fenrichers\u002Fbuilt-in","7.enrichers\u002F2.built-in",{"title":544,"path":545,"stem":546,"icon":83},"Custom","\u002Fenrichers\u002Fcustom","7.enrichers\u002F3.custom",{"id":548,"title":549,"body":550,"description":1419,"extension":1420,"links":1421,"meta":1426,"navigation":1427,"path":148,"seo":1428,"stem":149,"__hash__":1429},"docs\u002F2.logging\u002F8.audit\u002F04.pipeline.md","Drains & Integrity",{"type":551,"value":552,"toc":1411},"minimark",[553,570,577,586,673,676,799,817,823,843,857,994,1001,1053,1059,1064,1070,1127,1144,1149,1152,1227,1231,1234,1383,1389,1392,1407],[554,555,556,557,561,562,565,566,569],"p",{},"Three building blocks: ",[558,559,560],"code",{},"auditEnricher"," fills context, ",[558,563,564],{},"auditOnly"," routes audits to a dedicated drain, and ",[558,567,568],{},"signed"," adds tamper-evident integrity. Each is opt-in and replaceable.",[571,572,574],"h2",{"id":573},"auditenricher",[558,575,576],{},"auditEnricher()",[554,578,579,581,582,585],{},[558,580,576],{}," populates ",[558,583,584],{},"event.audit.context.{requestId, traceId, ip, userAgent, tenantId}",". Skip it and ship a custom enricher if your strategy differs.",[587,588,594],"pre",{"className":589,"code":590,"filename":591,"language":592,"meta":593,"style":593},"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","",[558,595,596,629,636],{"__ignoreMap":593},[597,598,601,605,609,613,616,619,622,626],"span",{"class":599,"line":600},"line",1,[597,602,604],{"class":603},"s7zQu","import",[597,606,608],{"class":607},"sMK4o"," {",[597,610,612],{"class":611},"sTEyZ"," auditEnricher",[597,614,615],{"class":607}," }",[597,617,618],{"class":603}," from",[597,620,621],{"class":607}," '",[597,623,625],{"class":624},"sfazB","evlog",[597,627,628],{"class":607},"'\n",[597,630,632],{"class":599,"line":631},2,[597,633,635],{"emptyLinePlaceholder":634},true,"\n",[597,637,639,642,645,648,650,654,657,660,663,665,668,670],{"class":599,"line":638},3,[597,640,641],{"class":611},"nitro",[597,643,644],{"class":607},".",[597,646,647],{"class":611},"hooks",[597,649,644],{"class":607},[597,651,653],{"class":652},"s2Zo4","hook",[597,655,656],{"class":611},"(",[597,658,659],{"class":607},"'",[597,661,662],{"class":624},"evlog:enrich",[597,664,659],{"class":607},[597,666,667],{"class":607},",",[597,669,612],{"class":652},[597,671,672],{"class":611},"())\n",[554,674,675],{},"For multi-tenant apps and custom session bridges, pass options:",[587,677,679],{"className":589,"code":678,"language":592,"meta":593,"style":593},"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",[558,680,681,710,754,790],{"__ignoreMap":593},[597,682,683,685,687,689,691,693,695,697,699,701,703,705,707],{"class":599,"line":600},[597,684,641],{"class":611},[597,686,644],{"class":607},[597,688,647],{"class":611},[597,690,644],{"class":607},[597,692,653],{"class":652},[597,694,656],{"class":611},[597,696,659],{"class":607},[597,698,662],{"class":624},[597,700,659],{"class":607},[597,702,667],{"class":607},[597,704,612],{"class":652},[597,706,656],{"class":611},[597,708,709],{"class":607},"{\n",[597,711,712,715,718,722,726,728,730,733,735,738,741,745,748,751],{"class":599,"line":631},[597,713,714],{"class":652},"  tenantId",[597,716,717],{"class":607},":",[597,719,721],{"class":720},"sHdIc"," ctx",[597,723,725],{"class":724},"spNyl"," =>",[597,727,721],{"class":611},[597,729,644],{"class":607},[597,731,732],{"class":611},"event",[597,734,644],{"class":607},[597,736,737],{"class":611},"tenant ",[597,739,740],{"class":603},"as",[597,742,744],{"class":743},"sBMFI"," string",[597,746,747],{"class":607}," |",[597,749,750],{"class":743}," undefined",[597,752,753],{"class":607},",\n",[597,755,756,760,762,764,767,769,772,774,776,779,782,784,787],{"class":599,"line":638},[597,757,759],{"class":758},"swJcz","  bridge",[597,761,717],{"class":607},[597,763,608],{"class":607},[597,765,766],{"class":652}," getSession",[597,768,717],{"class":607},[597,770,771],{"class":724}," async",[597,773,721],{"class":720},[597,775,725],{"class":724},[597,777,778],{"class":652}," readSessionActor",[597,780,781],{"class":611},"(ctx",[597,783,644],{"class":607},[597,785,786],{"class":611},"headers) ",[597,788,789],{"class":607},"},\n",[597,791,793,796],{"class":599,"line":792},4,[597,794,795],{"class":607},"}",[597,797,798],{"class":611},"))\n",[554,800,801,802,804,805,808,809,812,813,816],{},"Without ",[558,803,560],{},", ",[558,806,807],{},"audit.context"," stays empty — auditors and incident responders need at least ",[558,810,811],{},"requestId"," and ",[558,814,815],{},"ip"," to triangulate a recorded action.",[571,818,820],{"id":819},"auditonly",[558,821,822],{},"auditOnly()",[824,825,826,830,831,834,835,838,839,842],"tip",{},[827,828,829],"strong",{},"Why filter audits to a separate sink?"," Three reasons: ",[827,832,833],{},"cost"," (audit volume is tiny next to product telemetry — keep them separate so retention costs don't explode), ",[827,836,837],{},"permissions"," (the audit dataset should be read-only for engineers and write-only for the app), and ",[827,840,841],{},"retention"," (audits often live 7+ years; product logs rarely live more than 90 days).",[554,844,845,848,849,852,853,856],{},[558,846,847],{},"auditOnly(drain)"," only forwards events with an ",[558,850,851],{},"audit"," field. Compose with ",[827,854,855],{},"any"," drain:",[587,858,860],{"className":589,"code":859,"language":592,"meta":593,"style":593},"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', token: process.env.AXIOM_AUDIT_TOKEN }),\n))\n",[558,861,862,881,901,905,911,940,989],{"__ignoreMap":593},[597,863,864,866,868,871,873,875,877,879],{"class":599,"line":600},[597,865,604],{"class":603},[597,867,608],{"class":607},[597,869,870],{"class":611}," auditOnly",[597,872,615],{"class":607},[597,874,618],{"class":603},[597,876,621],{"class":607},[597,878,625],{"class":624},[597,880,628],{"class":607},[597,882,883,885,887,890,892,894,896,899],{"class":599,"line":631},[597,884,604],{"class":603},[597,886,608],{"class":607},[597,888,889],{"class":611}," createAxiomDrain",[597,891,615],{"class":607},[597,893,618],{"class":603},[597,895,621],{"class":607},[597,897,898],{"class":624},"evlog\u002Faxiom",[597,900,628],{"class":607},[597,902,903],{"class":599,"line":638},[597,904,635],{"emptyLinePlaceholder":634},[597,906,907],{"class":599,"line":792},[597,908,910],{"class":909},"sHwdD","\u002F\u002F Send audits to a dedicated Axiom dataset:\n",[597,912,914,916,918,920,922,924,926,928,931,933,935,937],{"class":599,"line":913},5,[597,915,641],{"class":611},[597,917,644],{"class":607},[597,919,647],{"class":611},[597,921,644],{"class":607},[597,923,653],{"class":652},[597,925,656],{"class":611},[597,927,659],{"class":607},[597,929,930],{"class":624},"evlog:drain",[597,932,659],{"class":607},[597,934,667],{"class":607},[597,936,870],{"class":652},[597,938,939],{"class":611},"(\n",[597,941,943,946,948,951,954,956,958,960,962,964,967,969,972,974,977,979,982,984,987],{"class":599,"line":942},6,[597,944,945],{"class":652},"  createAxiomDrain",[597,947,656],{"class":611},[597,949,950],{"class":607},"{",[597,952,953],{"class":758}," dataset",[597,955,717],{"class":607},[597,957,621],{"class":607},[597,959,851],{"class":624},[597,961,659],{"class":607},[597,963,667],{"class":607},[597,965,966],{"class":758}," token",[597,968,717],{"class":607},[597,970,971],{"class":611}," process",[597,973,644],{"class":607},[597,975,976],{"class":611},"env",[597,978,644],{"class":607},[597,980,981],{"class":611},"AXIOM_AUDIT_TOKEN ",[597,983,795],{"class":607},[597,985,986],{"class":611},")",[597,988,753],{"class":607},[597,990,992],{"class":599,"line":991},7,[597,993,798],{"class":611},[554,995,996,997,1000],{},"Set ",[558,998,999],{},"await: true"," to make audit writes synchronous (no fire-and-forget for audits — crash-safe by default):",[587,1002,1004],{"className":589,"code":1003,"language":592,"meta":593,"style":593},"auditOnly(createFsDrain({ dir: '.audit' }), { await: true })\n",[558,1005,1006],{"__ignoreMap":593},[597,1007,1008,1010,1012,1015,1017,1019,1022,1024,1026,1029,1031,1033,1035,1037,1039,1042,1044,1048,1050],{"class":599,"line":600},[597,1009,564],{"class":652},[597,1011,656],{"class":611},[597,1013,1014],{"class":652},"createFsDrain",[597,1016,656],{"class":611},[597,1018,950],{"class":607},[597,1020,1021],{"class":758}," dir",[597,1023,717],{"class":607},[597,1025,621],{"class":607},[597,1027,1028],{"class":624},".audit",[597,1030,659],{"class":607},[597,1032,615],{"class":607},[597,1034,986],{"class":611},[597,1036,667],{"class":607},[597,1038,608],{"class":607},[597,1040,1041],{"class":758}," await",[597,1043,717],{"class":607},[597,1045,1047],{"class":1046},"sfNiH"," true",[597,1049,615],{"class":607},[597,1051,1052],{"class":611},")\n",[554,1054,1055,1056,1058],{},"The ",[558,1057,999],{}," 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.",[571,1060,1061],{"id":568},[558,1062,1063],{},"signed()",[554,1065,1066,1069],{},[558,1067,1068],{},"signed(drain, opts)"," adds tamper-evident integrity. Two strategies:",[1071,1072,1073,1089],"table",{},[1074,1075,1076],"thead",{},[1077,1078,1079,1083,1086],"tr",{},[1080,1081,1082],"th",{},"Strategy",[1080,1084,1085],{},"What it adds",[1080,1087,1088],{},"Use case",[1090,1091,1092,1109],"tbody",{},[1077,1093,1094,1100,1106],{},[1095,1096,1097],"td",{},[558,1098,1099],{},"'hmac'",[1095,1101,1102,1105],{},[558,1103,1104],{},"event.audit.signature"," (HMAC of the canonical event)",[1095,1107,1108],{},"Single-event integrity check (any later mutation fails verification).",[1077,1110,1111,1116,1124],{},[1095,1112,1113],{},[558,1114,1115],{},"'hash-chain'",[1095,1117,1118,812,1121],{},[558,1119,1120],{},"event.audit.prevHash",[558,1122,1123],{},"event.audit.hash",[1095,1125,1126],{},"A verifiable chain — deletions and reordering also become detectable.",[824,1128,1129,1135,1136,1140,1141,1143],{},[827,1130,1131,1132,1134],{},"What ",[558,1133,1063],{}," actually buys you."," Detection, not prevention. Anyone with write access to the underlying sink can still nuke the file or table — but the chain proves ",[1137,1138,1139],"em",{},"which"," events were dropped or modified after the fact. Skip ",[558,1142,1063],{}," 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.",[1145,1146,1148],"h3",{"id":1147},"hmac","HMAC",[554,1150,1151],{},"Each event gets a signature. Tampering with one row breaks that row's verification, but doesn't break later rows.",[587,1153,1155],{"className":589,"code":1154,"language":592,"meta":593,"style":593},"import { signed } from 'evlog'\n\nsigned(drain, { strategy: 'hmac', secret: process.env.AUDIT_SECRET! })\n",[558,1156,1157,1176,1180],{"__ignoreMap":593},[597,1158,1159,1161,1163,1166,1168,1170,1172,1174],{"class":599,"line":600},[597,1160,604],{"class":603},[597,1162,608],{"class":607},[597,1164,1165],{"class":611}," signed",[597,1167,615],{"class":607},[597,1169,618],{"class":603},[597,1171,621],{"class":607},[597,1173,625],{"class":624},[597,1175,628],{"class":607},[597,1177,1178],{"class":599,"line":631},[597,1179,635],{"emptyLinePlaceholder":634},[597,1181,1182,1184,1187,1189,1191,1194,1196,1198,1200,1202,1204,1207,1209,1211,1213,1215,1217,1220,1223,1225],{"class":599,"line":638},[597,1183,568],{"class":652},[597,1185,1186],{"class":611},"(drain",[597,1188,667],{"class":607},[597,1190,608],{"class":607},[597,1192,1193],{"class":758}," strategy",[597,1195,717],{"class":607},[597,1197,621],{"class":607},[597,1199,1147],{"class":624},[597,1201,659],{"class":607},[597,1203,667],{"class":607},[597,1205,1206],{"class":758}," secret",[597,1208,717],{"class":607},[597,1210,971],{"class":611},[597,1212,644],{"class":607},[597,1214,976],{"class":611},[597,1216,644],{"class":607},[597,1218,1219],{"class":611},"AUDIT_SECRET",[597,1221,1222],{"class":607},"!",[597,1224,615],{"class":607},[597,1226,1052],{"class":611},[1145,1228,1230],{"id":1229},"hash-chain","Hash-chain",[554,1232,1233],{},"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.",[587,1235,1237],{"className":589,"code":1236,"language":592,"meta":593,"style":593},"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",[558,1238,1239,1250,1265,1274,1333,1372,1377],{"__ignoreMap":593},[597,1240,1241,1243,1245,1247],{"class":599,"line":600},[597,1242,568],{"class":652},[597,1244,1186],{"class":611},[597,1246,667],{"class":607},[597,1248,1249],{"class":607}," {\n",[597,1251,1252,1255,1257,1259,1261,1263],{"class":599,"line":631},[597,1253,1254],{"class":758},"  strategy",[597,1256,717],{"class":607},[597,1258,621],{"class":607},[597,1260,1229],{"class":624},[597,1262,659],{"class":607},[597,1264,753],{"class":607},[597,1266,1267,1270,1272],{"class":599,"line":638},[597,1268,1269],{"class":758},"  state",[597,1271,717],{"class":607},[597,1273,1249],{"class":607},[597,1275,1276,1279,1281,1284,1286,1289,1291,1294,1296,1298,1301,1303,1305,1307,1310,1312,1314,1316,1319,1321,1324,1326,1329,1331],{"class":599,"line":792},[597,1277,1278],{"class":652},"    load",[597,1280,717],{"class":607},[597,1282,1283],{"class":607}," ()",[597,1285,725],{"class":724},[597,1287,1288],{"class":611}," fs",[597,1290,644],{"class":607},[597,1292,1293],{"class":652},"readFile",[597,1295,656],{"class":611},[597,1297,659],{"class":607},[597,1299,1300],{"class":624},".audit\u002Fhead",[597,1302,659],{"class":607},[597,1304,667],{"class":607},[597,1306,621],{"class":607},[597,1308,1309],{"class":624},"utf8",[597,1311,659],{"class":607},[597,1313,986],{"class":611},[597,1315,644],{"class":607},[597,1317,1318],{"class":652},"catch",[597,1320,656],{"class":611},[597,1322,1323],{"class":607},"()",[597,1325,725],{"class":724},[597,1327,1328],{"class":607}," null",[597,1330,986],{"class":611},[597,1332,753],{"class":607},[597,1334,1335,1338,1340,1343,1346,1348,1350,1352,1354,1357,1359,1361,1363,1365,1367,1370],{"class":599,"line":913},[597,1336,1337],{"class":652},"    save",[597,1339,717],{"class":607},[597,1341,1342],{"class":607}," (",[597,1344,1345],{"class":720},"h",[597,1347,986],{"class":607},[597,1349,725],{"class":724},[597,1351,1288],{"class":611},[597,1353,644],{"class":607},[597,1355,1356],{"class":652},"writeFile",[597,1358,656],{"class":611},[597,1360,659],{"class":607},[597,1362,1300],{"class":624},[597,1364,659],{"class":607},[597,1366,667],{"class":607},[597,1368,1369],{"class":611}," h)",[597,1371,753],{"class":607},[597,1373,1374],{"class":599,"line":942},[597,1375,1376],{"class":607},"  },\n",[597,1378,1379,1381],{"class":599,"line":991},[597,1380,795],{"class":607},[597,1382,1052],{"class":611},[554,1384,1055,1385,1388],{},[558,1386,1387],{},"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.",[1390,1391],"hash-chain-tamper",{},[1393,1394,1395,1396,1399,1400,1403,1404,644],"note",{},"A CLI to walk and verify the chain (",[558,1397,1398],{},"evlog audit verify",") is on the roadmap. Until then, validate by recomputing the hashes of stored events and comparing each ",[558,1401,1402],{},"prevHash"," against the previous event's ",[558,1405,1406],{},"hash",[1408,1409,1410],"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":593,"searchDepth":631,"depth":631,"links":1412},[1413,1414,1415],{"id":573,"depth":631,"text":576},{"id":819,"depth":631,"text":822},{"id":568,"depth":631,"text":1063,"children":1416},[1417,1418],{"id":1147,"depth":638,"text":1148},{"id":1229,"depth":638,"text":1230},"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",[1422,1425],{"label":142,"icon":145,"to":143,"color":1423,"variant":1424},"neutral","subtle",{"label":152,"icon":129,"to":153,"color":1423,"variant":1424},{},{"title":147,"icon":150},{"title":549,"description":1419},"_3JRqd31dDWZXAN9m-j4Ikhyg3JwAr_LT4cmpgR6ppw",[1431,1433],{"title":142,"path":143,"stem":144,"description":1432,"icon":145,"children":-1},"log.audit, log.audit.deny, standalone audit(), withAudit auto-instrumentation, defineAuditAction and defineAuditCatalog registries, and auditDiff change patches.",{"title":152,"path":153,"stem":154,"description":1434,"icon":129,"children":-1},"Integrity, redact presets, GDPR vs append-only, retention windows, and the most common pitfalls when shipping audit logs to production.",1778338247441]