Have you ever needed to modify or enhance your API responses globally without cluttering your controllers? Enter ๐ฅ๐ฒ๐๐ฝ๐ผ๐ป๐๐ฒ๐๐ผ๐ฑ๐๐๐ฑ๐๐ถ๐ฐ๐ฒ โ a powerful Spring Boot interface that lets you intercept and customize the response body right before itโs written out.
With ResponseBodyAdvice, you can:
- Apply consistent formatting or wrapping to all responses
- Add metadata or headers dynamically
- Implement global response filtering or encryption
- Log or audit response payloads transparently
How does it work? Spring calls your ResponseBodyAdvice implementation after your controller returns but before the HTTP message converter writes the response. You decide when to activate your logic by overriding the ๐๐๐ฝ๐ฝ๐ผ๐ฟ๐๐() method, and then modify the response in ๐ฏ๐ฒ๐ณ๐ผ๐ฟ๐ฒ๐๐ผ๐ฑ๐๐ช๐ฟ๐ถ๐๐ฒ().
This approach keeps your controller code clean and focused on business logic while centralizing response handling in one place. Plus, by annotating your implementation with @๐๐ผ๐ป๐๐ฟ๐ผ๐น๐น๐ฒ๐ฟ๐๐ฑ๐๐ถ๐ฐ๐ฒ, Spring automatically detects and applies it across your application.
๐โ๐บ ๐ฐ๐๐ฟ๐ถ๐ผ๐๐ โ how have you used ResponseBodyAdvice in your projects? What creative solutions have you built with it? Share your experiences or challenges below!
Letโs discuss how this underrated Spring feature can help us write cleaner, more maintainable APIs.
