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structured-logging

Pin log attributes to a context.Context and every line under it carries them. Set request_id once at the door instead of dragging it through twenty functions that don't give a shit about it.

Go structured-logging library extending log/slog with extra levels, JSON/text output, log-file rotation, and a testing helper

slogz - A high-performance structured logging library for Zig, inspired by Go's slog. Features text/JSON handlers, async buffering, network sinks (TCP/UDP/HTTP), syslog RFC5424 support, and secret redaction.

nestjs-pino configuration for NestJS services: structured JSON logs, severity-gated serializers, a fixed attribute contract, Express and Fastify support.

Unified, Rails-compatible JSON request logging for Grape APIs with ActiveRecord timing, parameter filtering, and structured context.