Cross-cutting concerns
Your main job is to write business logic (you know, the code that makes money or solves the problem your app was built for).
Mapping
Replace handwritten mappers with MapStruct for Java and Kotlin, and ModelMapper for Groovy to handle object mapping automatically.
Logs
Set up structured logging with trace IDs, centralized sensitive data masking, and consistent request/response logging to make debugging production issues significantly easier.
Error handling
Implement proper error handling using @RestControllerAdvice and Problem Details for HTTP APIs to ensure consistent error responses across your API.