How to send MultipartFile and Json in spring boot

Question

Here is my controller:

@RestController
@RequestMapping("/api/product")
public class ProductController {

    @Autowired
    ProductService productService;
    
    @PreAuthorize(value = "hasRole('ADD_PRODUCT')")
    @PostMapping(value = "/add", consumes = {
            MediaType.MULTIPART_FORM_DATA_VALUE,
            MediaType.APPLICATION_JSON_VALUE
    })
    public HttpEntity<?> addProduct(@CurrentUser User user,
                                    @RequestPart("files") MultipartFile multipartFile,
                                    @Valid @RequestPart("info") ProductDto productDto) {
        ApiResponse apiResponse = productService.addProduct(user, productDto, multipartFile);
        return ResponseEntity.status(apiResponse.isSuccess() ? 201 : 409).body(apiResponse);
    }

}

It should receive a MultipartFile and Json object and my ProductDto class is:

@Data
@AllArgsConstructor
@NoArgsConstructor
public class ProductDto {

    @NotNull(message = "Name can't be empty")
    @NotBlank(message = "Name can't be blank")
    private String name;
    
    @Length(max = 1000)
    private String description;
    
    
    @NotNull(message = "Price can't be empty")
    private double price;//Evaluated in the $
    
    @NotNull(message = "You should choose one of the categories")
    private UUID categoryId;

}

I'm finding difficulties when I try to send request

But it always giving me 403 Forbidden and I don't know the reason This request is not coming to addProduct() method at all and I have permission "ADD_PRODUCT". @CurrentUser annotation class is

@Documented
@Retention(value = RetentionPolicy.RUNTIME)
@Target(ElementType.PARAMETER) 
@AuthenticationPrincipal
public @interface CurrentUser { } 

Not any error or exception is thrown as well

I have tried @RequestParam and @RequestPart both annotations I want to learn how to deal with situations like this when sending MultipartFile and Json object simultaneously. How can I do that in Spring boot

Answer 1

The 403 in postman I usually get it when I use http instead of https in the URL. I think you can try editing the postman URL or if that doesn't work try to tell the spring boot app to use simple http.