structured-logging-design

Implement structured logging in Go with trace correlation by using log/slog to automatically bind OpenTelemetry TraceID and SpanID to every JSON log line, enabling seamless pivoting between logs, metrics, and traces in observability platforms.

Enforce PII redaction in Go slog by utilizing custom LogValuer types to strictly sanitize secrets before output, ensuring production-grade JSON logs remain compliant while maintaining high-performance, zero-allocation logging on hot paths.

Yes, this structured logging approach works with Kubernetes pipelines by enforcing JSON-formatted output directly to stdout, making logs immediately available for machine indexing and ingestion by systems like Loki and Grafana.

Configure context-aware log levels for zero-allocation logging in Go by setting up the production JSON logger with log/slog, allowing dynamic severity adjustments based on request context without impacting hot-path performance.

You need structured JSON logs instead of fmt.Printf to solve the issue of unsearchable, uncorrelated logs in production systems, enabling machine indexing, strict PII redaction, and direct trace-context injection for backend observability.