Introduction to logging

Have you ever driven a car with a broken dashboard? The speedometer might be stuck, the fuel gauge unreliable, and warning lights might flicker mysteriously. Without clear information about how the engine is running, it’s difficult to diagnose problems or ensure a safe journey.

In the world of software, particularly complex systems built with microservices, logging plays a similar role. Logs are detailed records of events and activities within a system.

When building your microservices, just thinking about business implementations is not enough. Microservices are, by nature, complex, with many independent services interacting. Logging helps understand individual service behavior and pinpoint issues within a specific service. When things go wrong, logs provide the audit trail to diagnose and fix problems. They help identify errors, dropped requests, or performance bottlenecks. Every microservice application should have a proper logging mechanism...