Posted by Have you ever needed to modify or enhance your API responses globally without cluttering your controllers? Enter ResponseBodyAdvice — a powerful Spring Boot interface that lets you intercept and customize the response body right before it’s 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 supports() method, and then modify the response in beforeBodyWrite().
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 @ControllerAdvice, Spring automatically detects and applies it across your application.
I’m curious — how have you used ResponseBodyAdvice in your projects? What creative solutions have you built with it? Share your experiences or challenges below!
Let’s discuss how this underrated Spring feature can help us write cleaner, more maintainable APIs.
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