Production-Grade Logging in Spring Boot: A Complete Guide to Logging Levels, Files, JSON Logs, Correlation IDs, and Best Practices
Logging is one of the most important parts of a production backend system.
When everything works, you may not think much about logs.
But when production starts returning 500 errors at 2 AM, a customer reports that an API is failing, or a payment request behaves unexpectedly, logs become one of your most important debugging tools.
Poor logging makes production debugging painful.
