CODEWITHSUNDEEP
javaspringrestspring-mvcspring-data-rest
Oleksandr H
Oleksandr H

Reputation: 3015

Override standart Spring Data REST API

I have one Entity User in my app. Spring Data REST provides me standard endpoints:

`GET`    /user
`GET`    /user/<id>
`POST`   /user
`PUT`    /user
`PATCH`  /user
`DELETE` /user/<id>

I need to override default behaviour of DELETE endpoint not changing endpoint url /user. If I add following to my controller:

@Controller
@RequestMapping("/user")
public class User {

    @DeleteMapping("/{id}")
    @CrossOrigin
    public ResponseEntity<?> delete(@PathVariable("id") final String id) {
        userService.delete(id); // in service I remove user with other 
        return ResponseEntity.ok().build();
    }

    // other custom endpoints

}

I found that other standard REST endpoints do not work - I always receive 405 error. So, my question is - how to customize this endpoint and not affect other endpoints? (I know how to do this in @RepositoryEventHandler - but I should avoid this in my case)

Upvotes: 1

Views: 1058

Answers (1)

Cepr0
Cepr0

Reputation: 30309

Did you read this: Overriding Spring Data REST Response Handlers?

@RepositoryRestController
@RequestMapping("/users") // or 'user'? - check this...
public class UserController {

    @Autoware 
    private UserRepo userRepo;

    @Transactional 
    @DeleteMapping("/{id}") 
    public ResponseEntity<?> delete(@PathVariable("id") String id) { // or Long id?..

        // custom logic

        return ResponseEntity.noContent().build();
    }
}

But if you want to add extra business logic to delete process you even don't need to implement a custom controller, you can use a custom event handler:

@Component
@RepositoryEventHandler(User.class) 
public class UserEventHandler {

  @Autoware 
  private UserRepo userRepo;

  @BeforeDeleteEvent
  public void beforeDelete(User u) {
    //...
    if (/* smth. wrong */) throw new MyException(...);
  }
}

Upvotes: 4

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