Pino (Structured Logging)

Overview

Pino is the fastest JSON logger for Node.js. It outputs structured logs that integrate with observability platforms (Datadog, ELK, Splunk, CloudWatch).

Version: v9.x (2024-2025)
Performance: ~5x faster than Winston, ~10x faster than Bunyan

Key Benefit: Structured JSON logs → easy parsing, filtering, and alerting in production.

When to Use This Skill

✅ Use Pino when:

• Building production APIs
• Need structured JSON logs
• Integrating with observability platforms
• Require request tracing (correlation IDs)
• Must redact sensitive data (passwords, tokens)