Whole Response converted to JSON

[Ricardo Coto]

I have this issue where I coded a controller and i returning a Response (endpoint consumes and produces json) as follows:

    @PostMapping(value = "/{merchantId}/calculate", produces = MediaType.APPLICATION_JSON_VALUE, consumes = MediaType.APPLICATION_JSON_VALUE)
    public Response calculate(
            @PathVariable(value = "merchantId") Long pMerchantId,
            @RequestBody String pPaymentCalculatorViewModel )
    {

when i return something, controller is converting the whole response into json, i know is logical, but i have the same controller in another old project and as it is it works, i mean the controller returns the http status and only the json i'm returning

This is the code of one return

                response.put( "paymentAmount", paymentAmount );
                return Response.status( HttpStatus.SC_OK ).entity( response.toString() ).build();

If test the endpoint through postman, it returns a huge json and just one child of the json, the entity is what i need to return, so what am i doing wrong...

This is the old controller that is currently working fine (i know there are a whole different libraries like swagger and version that behaves different)

@POST
    @Consumes( MediaType.APPLICATION_JSON )
    @Produces( MediaType.APPLICATION_JSON )
    @Path( "/{merchantId}/calculate/" )
    @ApiOperation( value = "Payment Calculator", response = PaymentCalculatorViewModel.class )
    @ApiImplicitParams( @ApiImplicitParam( name = "X-Access-Token", value = "Authorization Token", required = true, dataType = "String", paramType = "header" ) )
    @ApiResponses( value = {
            @ApiResponse( code = 500, message = "Error calculating amounts" ),
            @ApiResponse( code = 200, message = "Calculation successful" ),
            @ApiResponse( code = 404, message = "Merchant not found" ),
            @ApiResponse( code = 422, message = "Validation errors" ),
    } )
    @Authenticated
    @SuppressWarnings( "unchecked" )
    public Response calculate(
            @ApiParam( value = "Merchant Id", required = true ) @PathParam( "merchantId" ) final Long pMerchantId,
            @ApiParam( value = "Values to calculate", required = true ) final PaymentCalculatorViewModel pPaymentCalculatorViewModel )
    {

[Peter Rooke]

It may depend upon what's on the runtime classpath, since I recall the OXM [un]marshals depending upon whats been plugged in.  Could be wrong both worth checking.

I never look to fix code, prefer to offer advice and let you fix it yourself ;-)

[Dave Tolls]

As you guessed, it's because they're two different frameworks.
The one you are having trouble with should be returning just the object you need, not that Response object.

[Ricardo Coto]

Peter Rooke I don't get what you said, you said 'depend upon what's on the runtime classpath' ? by runtime you mean the application server ? do you mean the library classpath of the project, have no idea what you're talking about...

Dave Tolls, yes thanks, that's what i did, i changed it to return a string, and to modify the http status i injected HttpServletResponse and then modify the status from there, thanks.