Issue
I'm trying to implement and image upload using Spring's Reactive Framework by trying the following:
@RestController
@RequestMapping("/images")
public class ImageController {
@Autowired
private IImageService imageService;
@PostMapping(value = "", consumes = MediaType.MULTIPART_FORM_DATA_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
Mono<ImageEntity> saveImage(@RequestBody Mono<FilePart> part) throws Exception{
return part.flatMap(file -> imageService.saveImage(file));
}
}
But I keep getting a 415 with the following error message:
Response status 415 with reason "Content type 'multipart/form-data;boundary=--0b227e57d1a5ca41' not supported\
Not sure what the issue is, I'm curling the API the following way:
curl -v -F "[email protected]" -H "Content-Type: multipart/form-data" localhost:8080/images
I've tried different variations of headers and files with the same results. Kind of at a loss here because I've done this in the past and things seemed to work okay. I saw from this post that this feature was merged:
How to enable Spring Reactive Web MVC to handle Multipart-file?
Solution
After digging around I was able to find this test in the Spring WebFlux project:
So the part I was missing was @RequestPart instead of @RequestBody in the controller definition.
Final code looks something like this:
@RestController
@RequestMapping("/images")
public class ImageController {
@Autowired
private IImageService imageService;
@PostMapping(value = "", consumes = MediaType.MULTIPART_FORM_DATA_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
Mono<ImageEntity> saveImage(@RequestPart("file") Mono<FilePart> part) throws Exception{
return part.flatMap(file -> imageService.saveImage(file));
}
}
Answered By - Joel Holmes
Answer Checked By - Willingham (JavaFixing Volunteer)
