Dev Tools · 1h ago
Structured Request Logging: Why Every Log Line Needs a Request ID
Request logging with structured JSON and correlation IDs is essential for debugging production failures in distributed systems. Fastify integrates pino automatically with request IDs, while Express requires manual middleware like pino-http. Without trace IDs, logs from concurrent requests become unqueryable, making it impossible to trace failures across services.
Meridian48 take
Solid practical advice for Node.js developers, but the core concept—correlation IDs in structured logs—is standard practice in observability, not novel.
request-loggingnode-js