OpenTelemetry for Node.js Overview OpenTelemetry (OTel) is the standard for distributed tracing, metrics, and logs. Instrument your Node.js services once, and send telemetry to any backend (Jaeger, Grafana Tempo, Datadog, Honeycomb). Auto-instrumentation captures HTTP, database, and gRPC calls without code changes. Instructions Step 1: Auto-Instrumentation Step 2: Custom Spans Step 3: Run Guidelines - Import instrumentation BEFORE your app code — auto-instrumentation patches libraries on import. - Use flag (ESM) or flag (CJS) to load instrumentation first. - Auto-instrumentation covers HTTP,…