gabrielmoreira Structured Logging and Observability
Log levels:
DEBUG: detailed diagnostic (off in production)INFO: normal operation milestonesWARNING: recoverable unexpected stateERROR: operation failed, action needed
Structured logs (JSON) over free-form text:
import structlog
log = structlog.get_logger()
log.info("request_complete", method="POST", path="/api/data", status=200, latency_ms=42)
Metrics to expose: request rate, error rate, latency (p50/p95/p99), queue depth.
Health check endpoint: /health returning {"status": "ok"} — required for load balancers.
Anti-pattern: Logging only on error; you can't diagnose what you didn't observe.