Cannot send requestbody and Multipartfile in Controller of Spring Boot from Postman

Question

I have a problem to send requestBody and multipartFile in Controller of Spring Boot from Postman.

I get this issue shown below as an image

Here is the method of controller shown below

@PostMapping(produces = MediaType.IMAGE_PNG_VALUE)
public ResponseEntity<byte[]> createQrCode(@RequestBody CreateQrRequest request, @RequestPart MultipartFile imageFile) throws IOException {

}

Here is CreateQrRequest shown below

@Data
@Builder
public class CreateQrRequest {

    @NotBlank
    private String text;

    @NotBlank
    private String size;

    @NotBlank
    private String color;

    @NotBlank
    private String backgroundColor;
}

Here is the error message when I tried to define the parameters like

public ResponseEntity<byte[]> createQrCode(@RequestPart CreateQrRequest request, 
                                               @RequestPart MultipartFile imageFile) throws IOException {

Error Message

{
    "type": "about:blank",
    "title": "Unsupported Media Type",
    "status": 415,
    "detail": "Content-Type 'application/octet-stream' is not supported.",
    "instance": "/api/v1/qr-generator"
}

How can I fix it?

Answer 1

You can change the controller like below -

 @PostMapping(produces = MediaType.IMAGE_PNG_VALUE)
    public ResponseEntity<byte[]> createQrCode(@RequestPart String text, @RequestPart String size, @RequestPart String color, @RequestPart String backgroundColor, @RequestPart MultipartFile imageFile) throws IOException {

    }

Just writing the request's attributes separately.