[{"data":1,"prerenderedAt":1180},["ShallowReactive",2],{"navigation_docs":3,"-extend-fs-reader":464,"-extend-fs-reader-surround":1175},[4,30,80,245,379,434],{"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},"Integrate","\u002Fintegrate","3.integrate",[85,89,157],{"title":36,"path":86,"stem":87,"icon":88},"\u002Fintegrate\u002Foverview","3.integrate\u002F0.overview","i-lucide-plug",{"title":90,"path":91,"stem":92,"children":93,"page":29},"Adapters","\u002Fintegrate\u002Fadapters","3.integrate\u002Fadapters",[94,97,137],{"title":36,"path":95,"stem":96,"icon":39},"\u002Fintegrate\u002Fadapters\u002Foverview","3.integrate\u002Fadapters\u002F01.overview",{"title":98,"path":99,"stem":100,"children":101,"page":29},"Cloud","\u002Fintegrate\u002Fadapters\u002Fcloud","3.integrate\u002Fadapters\u002Fcloud",[102,107,112,117,122,127,132],{"title":103,"path":104,"stem":105,"icon":106},"Axiom","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Faxiom","3.integrate\u002Fadapters\u002Fcloud\u002F01.axiom","i-custom-axiom",{"title":108,"path":109,"stem":110,"icon":111},"OTLP","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fotlp","3.integrate\u002Fadapters\u002Fcloud\u002F02.otlp","i-simple-icons-opentelemetry",{"title":113,"path":114,"stem":115,"icon":116},"PostHog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fposthog","3.integrate\u002Fadapters\u002Fcloud\u002F03.posthog","i-simple-icons-posthog",{"title":118,"path":119,"stem":120,"icon":121},"Sentry","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fsentry","3.integrate\u002Fadapters\u002Fcloud\u002F04.sentry","i-simple-icons-sentry",{"title":123,"path":124,"stem":125,"icon":126},"Better Stack","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fbetter-stack","3.integrate\u002Fadapters\u002Fcloud\u002F05.better-stack","i-simple-icons-betterstack",{"title":128,"path":129,"stem":130,"icon":131},"Datadog","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fdatadog","3.integrate\u002Fadapters\u002Fcloud\u002F06.datadog","i-simple-icons-datadog",{"title":133,"path":134,"stem":135,"icon":136},"HyperDX","\u002Fintegrate\u002Fadapters\u002Fcloud\u002Fhyperdx","3.integrate\u002Fadapters\u002Fcloud\u002F07.hyperdx","i-custom-hyperdx",{"title":138,"path":139,"stem":140,"children":141,"page":29},"Self-Hosted","\u002Fintegrate\u002Fadapters\u002Fself-hosted","3.integrate\u002Fadapters\u002Fself-hosted",[142,147,152],{"title":143,"path":144,"stem":145,"icon":146},"File System","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Ffs","3.integrate\u002Fadapters\u002Fself-hosted\u002F01.fs","i-lucide-hard-drive",{"title":148,"path":149,"stem":150,"icon":151},"NuxtHub","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fnuxthub","3.integrate\u002Fadapters\u002Fself-hosted\u002F02.nuxthub","i-simple-icons-nuxt",{"title":153,"path":154,"stem":155,"icon":156},"Memory","\u002Fintegrate\u002Fadapters\u002Fself-hosted\u002Fmemory","3.integrate\u002Fadapters\u002Fself-hosted\u002F03.memory","i-lucide-cpu",{"title":158,"path":159,"stem":160,"children":161,"page":29},"Frameworks","\u002Fintegrate\u002Fframeworks","3.integrate\u002Fframeworks",[162,166,171,176,181,186,191,196,201,206,211,216,221,226,230,235,240],{"title":36,"path":163,"stem":164,"icon":165},"\u002Fintegrate\u002Fframeworks\u002Foverview","3.integrate\u002Fframeworks\u002F00.overview","i-lucide-layout-grid",{"title":167,"path":168,"stem":169,"icon":170},"Nuxt","\u002Fintegrate\u002Fframeworks\u002Fnuxt","3.integrate\u002Fframeworks\u002F01.nuxt","i-simple-icons-nuxtdotjs",{"title":172,"path":173,"stem":174,"icon":175},"Next.js","\u002Fintegrate\u002Fframeworks\u002Fnextjs","3.integrate\u002Fframeworks\u002F02.nextjs","i-simple-icons-nextdotjs",{"title":177,"path":178,"stem":179,"icon":180},"SvelteKit","\u002Fintegrate\u002Fframeworks\u002Fsveltekit","3.integrate\u002Fframeworks\u002F03.sveltekit","i-simple-icons-svelte",{"title":182,"path":183,"stem":184,"icon":185},"Nitro","\u002Fintegrate\u002Fframeworks\u002Fnitro","3.integrate\u002Fframeworks\u002F04.nitro","i-custom-nitro",{"title":187,"path":188,"stem":189,"icon":190},"TanStack Start","\u002Fintegrate\u002Fframeworks\u002Ftanstack-start","3.integrate\u002Fframeworks\u002F05.tanstack-start","i-custom-tanstack",{"title":192,"path":193,"stem":194,"icon":195},"NestJS","\u002Fintegrate\u002Fframeworks\u002Fnestjs","3.integrate\u002Fframeworks\u002F06.nestjs","i-simple-icons-nestjs",{"title":197,"path":198,"stem":199,"icon":200},"Express","\u002Fintegrate\u002Fframeworks\u002Fexpress","3.integrate\u002Fframeworks\u002F07.express","i-simple-icons-express",{"title":202,"path":203,"stem":204,"icon":205},"Hono","\u002Fintegrate\u002Fframeworks\u002Fhono","3.integrate\u002Fframeworks\u002F08.hono","i-simple-icons-hono",{"title":207,"path":208,"stem":209,"icon":210},"Fastify","\u002Fintegrate\u002Fframeworks\u002Ffastify","3.integrate\u002Fframeworks\u002F09.fastify","i-simple-icons-fastify",{"title":212,"path":213,"stem":214,"icon":215},"Elysia","\u002Fintegrate\u002Fframeworks\u002Felysia","3.integrate\u002Fframeworks\u002F10.elysia","i-custom-elysia",{"title":217,"path":218,"stem":219,"icon":220},"React Router","\u002Fintegrate\u002Fframeworks\u002Freact-router","3.integrate\u002Fframeworks\u002F11.react-router","i-custom-reactrouter",{"title":222,"path":223,"stem":224,"icon":225},"Cloudflare Workers","\u002Fintegrate\u002Fframeworks\u002Fcloudflare-workers","3.integrate\u002Fframeworks\u002F12.cloudflare-workers","i-simple-icons-cloudflare",{"title":227,"path":228,"stem":229,"icon":74},"Standalone","\u002Fintegrate\u002Fframeworks\u002Fstandalone","3.integrate\u002Fframeworks\u002F13.standalone",{"title":231,"path":232,"stem":233,"icon":234},"Astro","\u002Fintegrate\u002Fframeworks\u002Fastro","3.integrate\u002Fframeworks\u002F14.astro","i-simple-icons-astro",{"title":236,"path":237,"stem":238,"icon":239},"oRPC","\u002Fintegrate\u002Fframeworks\u002Forpc","3.integrate\u002Fframeworks\u002F15.orpc","i-lucide-network",{"title":241,"path":242,"stem":243,"icon":244},"AWS Lambda","\u002Fintegrate\u002Fframeworks\u002Faws-lambda","3.integrate\u002Fframeworks\u002F16.aws-lambda","i-custom-lambda",{"title":246,"path":247,"stem":248,"children":249,"page":29},"Use Cases","\u002Fuse-cases","4.use-cases",[250,254,259,288,316,348,369,374],{"title":36,"path":251,"stem":252,"icon":253},"\u002Fuse-cases\u002Foverview","4.use-cases\u002F0.overview","i-lucide-list-checks",{"title":255,"path":256,"stem":257,"icon":258},"Client Logging","\u002Fuse-cases\u002Fclient-logging","4.use-cases\u002F1.client-logging","i-lucide-monitor",{"title":260,"icon":261,"path":262,"stem":263,"children":264,"page":29},"AI SDK","i-simple-icons-vercel","\u002Fuse-cases\u002Fai-sdk","4.use-cases\u002F2.ai-sdk",[265,268,273,278,283],{"title":36,"path":266,"stem":267,"icon":39},"\u002Fuse-cases\u002Fai-sdk\u002Foverview","4.use-cases\u002F2.ai-sdk\u002F01.overview",{"title":269,"path":270,"stem":271,"icon":272},"Usage","\u002Fuse-cases\u002Fai-sdk\u002Fusage","4.use-cases\u002F2.ai-sdk\u002F02.usage","i-lucide-code",{"title":274,"path":275,"stem":276,"icon":277},"Options","\u002Fuse-cases\u002Fai-sdk\u002Foptions","4.use-cases\u002F2.ai-sdk\u002F03.options","i-lucide-sliders",{"title":279,"path":280,"stem":281,"icon":282},"Metadata","\u002Fuse-cases\u002Fai-sdk\u002Fmetadata","4.use-cases\u002F2.ai-sdk\u002F04.metadata","i-lucide-database",{"title":284,"path":285,"stem":286,"icon":287},"Telemetry","\u002Fuse-cases\u002Fai-sdk\u002Ftelemetry","4.use-cases\u002F2.ai-sdk\u002F05.telemetry","i-lucide-activity",{"title":289,"icon":290,"path":291,"stem":292,"children":293,"page":29},"Better Auth","i-simple-icons-betterauth","\u002Fuse-cases\u002Fbetter-auth","4.use-cases\u002F3.better-auth",[294,297,302,307,311],{"title":36,"path":295,"stem":296,"icon":39},"\u002Fuse-cases\u002Fbetter-auth\u002Foverview","4.use-cases\u002F3.better-auth\u002F01.overview",{"title":298,"path":299,"stem":300,"icon":301},"Identify User","\u002Fuse-cases\u002Fbetter-auth\u002Fidentify-user","4.use-cases\u002F3.better-auth\u002F02.identify-user","i-lucide-user-check",{"title":303,"path":304,"stem":305,"icon":306},"Middleware","\u002Fuse-cases\u002Fbetter-auth\u002Fmiddleware","4.use-cases\u002F3.better-auth\u002F03.middleware","i-lucide-shield",{"title":308,"path":309,"stem":310,"icon":258},"Client Sync","\u002Fuse-cases\u002Fbetter-auth\u002Fclient-sync","4.use-cases\u002F3.better-auth\u002F04.client-sync",{"title":312,"path":313,"stem":314,"icon":315},"Performance","\u002Fuse-cases\u002Fbetter-auth\u002Fperformance","4.use-cases\u002F3.better-auth\u002F05.performance","i-lucide-gauge",{"title":317,"icon":318,"path":319,"stem":320,"children":321,"page":29},"Audit Logs","i-lucide-shield-check","\u002Fuse-cases\u002Faudit","4.use-cases\u002F4.audit",[322,325,330,335,340,344],{"title":36,"path":323,"stem":324,"icon":39},"\u002Fuse-cases\u002Faudit\u002Foverview","4.use-cases\u002F4.audit\u002F01.overview",{"title":326,"path":327,"stem":328,"icon":329},"Schema","\u002Fuse-cases\u002Faudit\u002Fschema","4.use-cases\u002F4.audit\u002F02.schema","i-lucide-file-text",{"title":331,"path":332,"stem":333,"icon":334},"Recording","\u002Fuse-cases\u002Faudit\u002Frecording","4.use-cases\u002F4.audit\u002F03.recording","i-lucide-pen-line",{"title":336,"path":337,"stem":338,"icon":339},"Drains","\u002Fuse-cases\u002Faudit\u002Fpipeline","4.use-cases\u002F4.audit\u002F04.pipeline","i-lucide-link",{"title":341,"path":342,"stem":343,"icon":318},"Compliance","\u002Fuse-cases\u002Faudit\u002Fcompliance","4.use-cases\u002F4.audit\u002F05.compliance",{"title":345,"path":346,"stem":347,"icon":79},"Recipes","\u002Fuse-cases\u002Faudit\u002Frecipes","4.use-cases\u002F4.audit\u002F06.recipes",{"title":284,"icon":315,"path":349,"stem":350,"children":351,"page":29},"\u002Fuse-cases\u002Ftelemetry","4.use-cases\u002F4.telemetry",[352,355,360,365],{"title":36,"path":353,"stem":354,"icon":39},"\u002Fuse-cases\u002Ftelemetry\u002Foverview","4.use-cases\u002F4.telemetry\u002F01.overview",{"title":356,"path":357,"stem":358,"icon":359},"Setup","\u002Fuse-cases\u002Ftelemetry\u002Fsetup","4.use-cases\u002F4.telemetry\u002F02.setup","i-lucide-wrench",{"title":361,"path":362,"stem":363,"icon":364},"Ingest","\u002Fuse-cases\u002Ftelemetry\u002Fingest","4.use-cases\u002F4.telemetry\u002F03.ingest","i-lucide-server",{"title":366,"path":367,"stem":368,"icon":79},"Reference","\u002Fuse-cases\u002Ftelemetry\u002Freference","4.use-cases\u002F4.telemetry\u002F04.reference",{"title":370,"path":371,"stem":372,"icon":373},"Enrichers","\u002Fuse-cases\u002Fenrichers","4.use-cases\u002F5.enrichers","i-lucide-sparkles",{"title":375,"path":376,"stem":377,"icon":378},"eve","\u002Fuse-cases\u002Feve","4.use-cases\u002F5.eve","i-custom-eve",{"title":380,"path":381,"stem":382,"children":383,"page":29},"Extend","\u002Fextend","5.extend",[384,388,393,398,403,407,411,415,419,424,429],{"title":36,"path":385,"stem":386,"icon":387},"\u002Fextend\u002Foverview","5.extend\u002F0.overview","i-lucide-blocks",{"title":389,"path":390,"stem":391,"icon":392},"Stream","\u002Fextend\u002Fstream","5.extend\u002F1.stream","i-lucide-radio-tower",{"title":394,"path":395,"stem":396,"icon":397},"Custom framework","\u002Fextend\u002Fcustom-framework","5.extend\u002F10.custom-framework","i-lucide-puzzle",{"title":399,"path":400,"stem":401,"icon":402},"FS reader","\u002Fextend\u002Ffs-reader","5.extend\u002F2.fs-reader","i-lucide-folder-search",{"title":345,"path":404,"stem":405,"icon":406},"\u002Fextend\u002Fconsumer-recipes","5.extend\u002F3.consumer-recipes","i-lucide-chef-hat",{"title":408,"path":409,"stem":410,"icon":387},"Plugins","\u002Fextend\u002Fplugins","5.extend\u002F4.plugins",{"title":412,"path":413,"stem":414,"icon":373},"Custom enrichers","\u002Fextend\u002Fcustom-enrichers","5.extend\u002F5.custom-enrichers",{"title":416,"path":417,"stem":418,"icon":64},"Tail sampling","\u002Fextend\u002Ftail-sampling","5.extend\u002F6.tail-sampling",{"title":420,"path":421,"stem":422,"icon":423},"Identity headers","\u002Fextend\u002Fidentity-headers","5.extend\u002F7.identity-headers","i-lucide-fingerprint",{"title":425,"path":426,"stem":427,"icon":428},"Custom drains","\u002Fextend\u002Fcustom-drains","5.extend\u002F8.custom-drains","i-lucide-share-2",{"title":430,"path":431,"stem":432,"icon":433},"Drain pipeline","\u002Fextend\u002Fdrain-pipeline","5.extend\u002F9.drain-pipeline","i-lucide-workflow",{"title":366,"path":435,"stem":436,"children":437,"page":29},"\u002Freference","6.reference",[438,443,446,451,455,460],{"title":439,"path":440,"stem":441,"icon":442},"Configuration","\u002Freference\u002Fconfiguration","6.reference\u002F1.configuration","i-lucide-settings",{"title":312,"path":444,"stem":445,"icon":315},"\u002Freference\u002Fperformance","6.reference\u002F2.performance",{"title":447,"path":448,"stem":449,"icon":450},"Vite Plugin","\u002Freference\u002Fvite-plugin","6.reference\u002F3.vite-plugin","i-custom-vite",{"title":452,"path":453,"stem":454,"icon":318},"Best Practices","\u002Freference\u002Fbest-practices","6.reference\u002F4.best-practices",{"title":456,"path":457,"stem":458,"icon":459},"vs Other Loggers","\u002Freference\u002Fvs-other-loggers","6.reference\u002F5.vs-other-loggers","i-lucide-scale",{"title":461,"path":462,"stem":463,"icon":373},"Agent Skills","\u002Freference\u002Fagent-skills","6.reference\u002F6.agent-skills",{"id":465,"title":399,"body":466,"description":1168,"extension":1169,"links":1170,"meta":1171,"navigation":1172,"path":400,"seo":1173,"stem":401,"__hash__":1174},"docs\u002F5.extend\u002F2.fs-reader.md",{"type":467,"value":468,"toc":1159},"minimark",[469,504,507,581,586,754,760,764,865,868,872,1042,1052,1056,1114,1123,1127,1155],[470,471,472,473,477,478,482,483,486,487,490,491,494,495,498,499,503],"p",{},"The ",[474,475,476],"a",{"href":144},"filesystem drain"," writes wide events as NDJSON to ",[479,480,481],"code",{},".jsonl"," files under ",[479,484,485],{},".evlog\u002Flogs\u002F"," (one file per day, e.g. ",[479,488,489],{},"2026-05-08.jsonl",", plus rotation suffixes like ",[479,492,493],{},".1.jsonl"," when size-based rotation is enabled). The ",[479,496,497],{},"evlog\u002Ffs"," module also ships ",[500,501,502],"strong",{},"readers"," that let any Node tool replay or follow that history without hooking into the running app.",[505,506],"ndjson-tail",{},[508,509,512,515,573],"prompt",{":actions":510,"description":511,"icon":402},"[\"copy\",\"cursor\",\"claude\"]","Read or tail evlog NDJSON logs from disk",[470,513,514],{},"Build a script that consumes evlog's local NDJSON history (no app hook required).",[516,517,518,529,542,552,570],"ul",{},[519,520,521,522,524,525,528],"li",{},"Confirm the filesystem drain is wired up (",[479,523,497],{}," adapter writing NDJSON to ",[479,526,527],{},".evlog\u002Flogs\u002F*.jsonl",")",[519,530,531,532,535,536,538,539],{},"For replay: import ",[479,533,534],{},"readFsLogs"," from ",[479,537,497],{}," and iterate ",[479,540,541],{},"for await (const event of readFsLogs({ since, until, level, filter }))",[519,543,544,545,548,549],{},"For follow mode: import ",[479,546,547],{},"tailFsLogs"," and iterate the same way — it watches for new lines, handles rotation, and accepts an ",[479,550,551],{},"AbortSignal",[519,553,554,555,558,559,558,562,565,566,569],{},"Apply filters at read time (",[479,556,557],{},"level",", ",[479,560,561],{},"since",[479,563,564],{},"until",", custom ",[479,567,568],{},"filter"," predicate) instead of post-processing",[519,571,572],{},"Treat malformed lines as silently skipped (partial writes happen) — never crash the script on a bad line",[470,574,575,576],{},"Docs: ",[474,577,578],{"href":578,"rel":579},"https:\u002F\u002Fwww.evlog.dev\u002Fextend\u002Ffs-reader",[580],"nofollow",[582,583,585],"h2",{"id":584},"replay-history","Replay history",[587,588,593],"pre",{"className":589,"code":590,"language":591,"meta":592,"style":592},"language-ts shiki shiki-themes material-theme-lighter material-theme material-theme-palenight","import { readFsLogs } from 'evlog\u002Ffs'\n\nfor await (const event of readFsLogs({ since: '2026-03-01', level: 'error' })) {\n  console.log(event.timestamp, event.action ?? event.message)\n}\n","ts","",[479,594,595,627,634,703,748],{"__ignoreMap":592},[596,597,600,604,608,612,615,618,621,624],"span",{"class":598,"line":599},"line",1,[596,601,603],{"class":602},"s7zQu","import",[596,605,607],{"class":606},"sMK4o"," {",[596,609,611],{"class":610},"sTEyZ"," readFsLogs",[596,613,614],{"class":606}," }",[596,616,617],{"class":602}," from",[596,619,620],{"class":606}," '",[596,622,497],{"class":623},"sfazB",[596,625,626],{"class":606},"'\n",[596,628,630],{"class":598,"line":629},2,[596,631,633],{"emptyLinePlaceholder":632},true,"\n",[596,635,637,640,643,646,650,653,656,659,662,665,669,672,674,677,680,683,686,688,690,693,695,697,700],{"class":598,"line":636},3,[596,638,639],{"class":602},"for",[596,641,642],{"class":602}," await",[596,644,645],{"class":610}," (",[596,647,649],{"class":648},"spNyl","const",[596,651,652],{"class":610}," event ",[596,654,655],{"class":606},"of",[596,657,611],{"class":658},"s2Zo4",[596,660,661],{"class":610},"(",[596,663,664],{"class":606},"{",[596,666,668],{"class":667},"swJcz"," since",[596,670,671],{"class":606},":",[596,673,620],{"class":606},[596,675,676],{"class":623},"2026-03-01",[596,678,679],{"class":606},"'",[596,681,682],{"class":606},",",[596,684,685],{"class":667}," level",[596,687,671],{"class":606},[596,689,620],{"class":606},[596,691,692],{"class":623},"error",[596,694,679],{"class":606},[596,696,614],{"class":606},[596,698,699],{"class":610},")) ",[596,701,702],{"class":606},"{\n",[596,704,706,709,712,715,717,720,722,725,727,730,732,735,738,740,742,745],{"class":598,"line":705},4,[596,707,708],{"class":610},"  console",[596,710,711],{"class":606},".",[596,713,714],{"class":658},"log",[596,716,661],{"class":667},[596,718,719],{"class":610},"event",[596,721,711],{"class":606},[596,723,724],{"class":610},"timestamp",[596,726,682],{"class":606},[596,728,729],{"class":610}," event",[596,731,711],{"class":606},[596,733,734],{"class":610},"action",[596,736,737],{"class":606}," ??",[596,739,729],{"class":610},[596,741,711],{"class":606},[596,743,744],{"class":610},"message",[596,746,747],{"class":667},")\n",[596,749,751],{"class":598,"line":750},5,[596,752,753],{"class":606},"}\n",[470,755,756,759],{},[479,757,758],{},"readFsLogs(options)"," walks the NDJSON files in chronological order, parses them line by line, and yields events that pass all filters. Files outside the date window are skipped entirely.",[761,762,274],"h3",{"id":763},"options",[765,766,767,783],"table",{},[768,769,770],"thead",{},[771,772,773,777,780],"tr",{},[774,775,776],"th",{},"Option",[774,778,779],{},"Type",[774,781,782],{},"Description",[784,785,786,805,822,837,851],"tbody",{},[771,787,788,794,799],{},[789,790,791],"td",{},[479,792,793],{},"dir",[789,795,796],{},[479,797,798],{},"string",[789,800,801,802,711],{},"Directory to read from. Default: ",[479,803,804],{},".evlog\u002Flogs",[771,806,807,811,816],{},[789,808,809],{},[479,810,561],{},[789,812,813],{},[479,814,815],{},"Date | string",[789,817,818,819,711],{},"Yield events with ",[479,820,821],{},"timestamp >= since",[771,823,824,828,832],{},[789,825,826],{},[479,827,564],{},[789,829,830],{},[479,831,815],{},[789,833,818,834,711],{},[479,835,836],{},"timestamp \u003C= until",[771,838,839,843,848],{},[789,840,841],{},[479,842,557],{},[789,844,845],{},[479,846,847],{},"LogLevel | LogLevel[]",[789,849,850],{},"Filter by event level.",[771,852,853,857,862],{},[789,854,855],{},[479,856,568],{},[789,858,859],{},[479,860,861],{},"(event) => boolean",[789,863,864],{},"Custom predicate.",[470,866,867],{},"Malformed lines (partial writes, manual edits) are silently skipped — your script never crashes on a bad line.",[582,869,871],{"id":870},"live-tail","Live tail",[587,873,875],{"className":589,"code":874,"language":591,"meta":592,"style":592},"import { tailFsLogs } from 'evlog\u002Ffs'\n\nconst ac = new AbortController()\nprocess.on('SIGINT', () => ac.abort())\n\nfor await (const event of tailFsLogs({ signal: ac.signal })) {\n  console.log('live:', event.action ?? event.message)\n}\n",[479,876,877,896,900,919,957,961,1001,1037],{"__ignoreMap":592},[596,878,879,881,883,886,888,890,892,894],{"class":598,"line":599},[596,880,603],{"class":602},[596,882,607],{"class":606},[596,884,885],{"class":610}," tailFsLogs",[596,887,614],{"class":606},[596,889,617],{"class":602},[596,891,620],{"class":606},[596,893,497],{"class":623},[596,895,626],{"class":606},[596,897,898],{"class":598,"line":629},[596,899,633],{"emptyLinePlaceholder":632},[596,901,902,904,907,910,913,916],{"class":598,"line":636},[596,903,649],{"class":648},[596,905,906],{"class":610}," ac ",[596,908,909],{"class":606},"=",[596,911,912],{"class":606}," new",[596,914,915],{"class":658}," AbortController",[596,917,918],{"class":610},"()\n",[596,920,921,924,926,929,931,933,936,938,940,943,946,949,951,954],{"class":598,"line":705},[596,922,923],{"class":610},"process",[596,925,711],{"class":606},[596,927,928],{"class":658},"on",[596,930,661],{"class":610},[596,932,679],{"class":606},[596,934,935],{"class":623},"SIGINT",[596,937,679],{"class":606},[596,939,682],{"class":606},[596,941,942],{"class":606}," ()",[596,944,945],{"class":648}," =>",[596,947,948],{"class":610}," ac",[596,950,711],{"class":606},[596,952,953],{"class":658},"abort",[596,955,956],{"class":610},"())\n",[596,958,959],{"class":598,"line":750},[596,960,633],{"emptyLinePlaceholder":632},[596,962,964,966,968,970,972,974,976,978,980,982,985,987,989,991,994,997,999],{"class":598,"line":963},6,[596,965,639],{"class":602},[596,967,642],{"class":602},[596,969,645],{"class":610},[596,971,649],{"class":648},[596,973,652],{"class":610},[596,975,655],{"class":606},[596,977,885],{"class":658},[596,979,661],{"class":610},[596,981,664],{"class":606},[596,983,984],{"class":667}," signal",[596,986,671],{"class":606},[596,988,948],{"class":610},[596,990,711],{"class":606},[596,992,993],{"class":610},"signal ",[596,995,996],{"class":606},"}",[596,998,699],{"class":610},[596,1000,702],{"class":606},[596,1002,1004,1006,1008,1010,1012,1014,1017,1019,1021,1023,1025,1027,1029,1031,1033,1035],{"class":598,"line":1003},7,[596,1005,708],{"class":610},[596,1007,711],{"class":606},[596,1009,714],{"class":658},[596,1011,661],{"class":667},[596,1013,679],{"class":606},[596,1015,1016],{"class":623},"live:",[596,1018,679],{"class":606},[596,1020,682],{"class":606},[596,1022,729],{"class":610},[596,1024,711],{"class":606},[596,1026,734],{"class":610},[596,1028,737],{"class":606},[596,1030,729],{"class":610},[596,1032,711],{"class":606},[596,1034,744],{"class":610},[596,1036,747],{"class":667},[596,1038,1040],{"class":598,"line":1039},8,[596,1041,753],{"class":606},[470,1043,1044,1047,1048,1051],{},[479,1045,1046],{},"tailFsLogs(options)"," first yields existing events (unless ",[479,1049,1050],{},"fromEnd: true","), then keeps yielding new ones as they're appended — including events written into newly created daily files. Partial writes split across polls are recombined transparently.",[761,1053,1055],{"id":1054},"tail-specific-options","Tail-specific options",[765,1057,1058,1068],{},[768,1059,1060],{},[771,1061,1062,1064,1066],{},[774,1063,776],{},[774,1065,779],{},[774,1067,782],{},[784,1069,1070,1085,1100],{},[771,1071,1072,1077,1082],{},[789,1073,1074],{},[479,1075,1076],{},"pollIntervalMs",[789,1078,1079],{},[479,1080,1081],{},"number",[789,1083,1084],{},"Polling interval. Default: 500ms (minimum 50ms).",[771,1086,1087,1092,1097],{},[789,1088,1089],{},[479,1090,1091],{},"fromEnd",[789,1093,1094],{},[479,1095,1096],{},"boolean",[789,1098,1099],{},"Skip existing events; only yield future ones. Default: false.",[771,1101,1102,1107,1111],{},[789,1103,1104],{},[479,1105,1106],{},"signal",[789,1108,1109],{},[479,1110,551],{},[789,1112,1113],{},"Stop tailing when aborted.",[470,1115,1116,1117,1122],{},"All ",[474,1118,1120],{"href":1119},"#options",[479,1121,534],{}," options also apply.",[582,1124,1126],{"id":1125},"use-cases","Use cases",[516,1128,1129,1135,1138,1148],{},[519,1130,1131,1132,1134],{},"A local Electron \u002F Tauri dashboard reading ",[479,1133,485],{}," from a target project directory",[519,1136,1137],{},"A CI report aggregator that scans logs after a test run",[519,1139,1140,1141,1144,1145],{},"A ",[479,1142,1143],{},"grep","-style CLI that pipes filtered events into ",[479,1146,1147],{},"jq",[519,1149,1150,1151],{},"Replaying historic events into a dashboard before switching to a live in-process subscription. See the ",[474,1152,1154],{"href":1153},"\u002Fextend\u002Fconsumer-recipes#3-replay-history-then-go-live","replay-then-live recipe",[1156,1157,1158],"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 .spNyl, html code.shiki .spNyl{--shiki-light:#9C3EDA;--shiki-default:#C792EA;--shiki-dark:#C792EA}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 .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);}",{"title":592,"searchDepth":629,"depth":629,"links":1160},[1161,1164,1167],{"id":584,"depth":629,"text":585,"children":1162},[1163],{"id":763,"depth":636,"text":274},{"id":870,"depth":629,"text":871,"children":1165},[1166],{"id":1054,"depth":636,"text":1055},{"id":1125,"depth":629,"text":1126},"Replay and tail the local NDJSON drain with readFsLogs and tailFsLogs — works in-process or from any external Node tool, survives restarts.","md",null,{},{"title":399,"icon":402},{"title":399,"description":1168},"pUYXzJgBewDjrFYHHifED0fIK9WbHW3z809zmUI9chA",[1176,1178],{"title":394,"path":395,"stem":396,"description":1177,"icon":397,"children":-1},"Build evlog support for an HTTP framework (or non-HTTP runtime) without a built-in integration. Use defineFrameworkIntegration for the (ctx, next) middleware shape, or createMiddlewareLogger \u002F createRequestLogger for everything else.",{"title":345,"path":404,"stem":405,"description":1179,"icon":406,"children":-1},"Concrete copy-paste recipes — build your own minimal devtool, pipe to curl + jq, replay history then go live, and aggregate on the consumer side.",1784203210405]