Posted by Did you know you can intercept and customize the way your Spring Boot REST API reads and processes request bodies—without touching your controller code? That’s where RequestBodyAdvice comes in!
What is RequestBodyAdvice?
RequestBodyAdvice is a powerful interface in Spring MVC that allows you to hook into the request body processing pipeline. It lets you:
- Customize the request before its body is read and converted into an object.
- Modify the resulting object before it’s passed to your controller method.
- Handle empty request bodies with custom logic.
You can register your implementation globally using @ControllerAdvice, making it easy to apply cross-cutting concerns like validation, decryption, logging, or data enrichment across all your endpoints—transparently and consistently
Why should you care?
Imagine scenarios like:
- Automatically decoding or decrypting incoming payloads.
- Injecting audit information or timestamps into request objects.
- Enforcing custom validation or transformation rules before business logic runs.
All of this is possible without cluttering your controller methods, keeping your code clean and maintainable.
How are you leveraging RequestBodyAdvice?
Have you used RequestBodyAdvice in your projects? What creative use cases have you found, or what challenges did you face? Let’s share experiences and best practices!
👇 Drop your thoughts, questions, or tips in the comments!
#SpringBoot #Java #RESTAPI #SpringMVC #Backend #CleanCode #RequestBodyAdvice #APIDesign #SoftwareEngineering