feat: v2 enhancements — auto instrumentation, HTTP tracing, flamegraph UI, CLI, Chrome export#1
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beingmartinbmc merged 1 commit intomainfrom Mar 8, 2026
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1. Automatic Middleware Instrumentation - Express autoTrack (existing, enhanced) - Fastify lifecycle phase timing (onRequest, preParsing, preValidation, handler, onSend) - Koa instrumentKoa(app) patches app.use() to auto-wrap middleware 2. HTTP Client Tracing - Auto-instrument http.request, http.get, https.request, https.get, fetch - Records outgoing calls as steps with type 'http-outgoing' - Enable via traceOutgoing config or enableHttpTracing()/disableHttpTracing() 3. Timeline / Flamegraph UI - Waterfall view (default) - bars proportional to duration - Timeline view - time-proportional positioning - Flamegraph view - compact stacked blocks - Chrome Trace export button in detail panel 4. CLI Tool (npx node-request-trace) - stats, recent, slow, inspect, tail, export commands - ANSI colored terminal output with waterfall bars and flamegraph 5. Chrome Trace Export - /trace/:id/chrome HTTP endpoint - exportChromeTrace() and exportChromeTraceJson() API methods - Compatible with chrome://tracing Tests: 178 passing, 100% coverage across all files README: fully updated with all new features and examples
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Summary
Five major features added to node-request-trace:
1. Automatic Middleware Instrumentation
autoTrackwraps middleware layers with timingonRequest,preParsing,preValidation,handler,onSend)trace.instrumentKoa(app)patchesapp.use()to auto-wrap each middleware2. HTTP Client Tracing
http.request,http.get,https.request,https.get,globalThis.fetchtype: 'http-outgoing'traceOutgoing: trueconfig orenableHttpTracing()/disableHttpTracing()3. Timeline / Flamegraph UI
4. CLI Tool (
npx node-request-trace)stats,recent,slow,inspect,tail,export5. Chrome Trace Export
GET /trace/:id/chromeHTTP endpointexportChromeTrace()andexportChromeTraceJson()API methodschrome://tracingTesting