How to just get the data using CRUD POST method? - spring

Question

I have developed Small Spring boot Rest api app. I can able to get the data or create new record and search with paging and sorting.
Now i'm looking for provide input data in body to get the data instead of providing in URL with GET method. Is this method also default function ? Please advise.
public interface CodeTextRepository extends PagingAndSortingRepository<CodeText, Long> {
}
How to write POST method to just get the data ?
http://localhost:8080/api/code
method : POST
{
"code":1
}

Answer 1

If I understand you correctly, you want to create a controller that will get the a model as body parameter ({ "code": 1 }) in a POST method and then do something with it.
To do that, you can create a controller that looks like the following (I inserted pseudo-code as an example):
#RestController
#RequestMapping(value = "/api/code")
public class CodeTextController {
private CodeTextRepository codeTextRepository;
// constructor injection
public CodeTextController(CodeTextRepository codeTextRepository) {
this.codeTextRepository = codeTextRepository;
}
#PostMapping
public CodeText postCodeText(#RequestBody CodeTextRequest codeTextRequest) {
// some code to get from the DB
return codeText;
}
}
public class CodeTextRequest {
private int code;
// getters and setters
}

Answer 2

Simply add Accept header to the request, like
accept: application/json
Spring Data-Rest will return the body after a POST request if either the returnBodyOnCreate flag was explicitly set to true in the RepositoryRestConfiguration OR if the flag was NOT set AND the request has an Accept header.
You can set the flag directly during configuration, or you can set it via the application.properties:
spring.data.rest.returnBodyOnCreate = true
you can also set it separately for update:
spring.data.rest.returnBodyOnUpdate = true
---- edit
Maybe I misunderstood your question. If you simply want to GET an existing data using POST method, then DO NOT DO IT AT ALL! That's not a REST API any more. There must be some reason you want to do it, but you should try do resolve that original problem instead in another way!