title: Spring Web Reactive Framework Multipart File Issue
body: <p>I'm trying to implement and image upload using Spring's Reactive Framework by trying the following:</p>
  
  <pre><code>@RestController
  @RequestMapping("/images")
  public class ImageController {
  
      @Autowired
      private IImageService imageService;
  
      @PostMapping(value = "", consumes = MediaType.MULTIPART_FORM_DATA_VALUE, produces = MediaType.APPLICATION_JSON_VALUE)
      Mono&lt;ImageEntity&gt; saveImage(@RequestBody Mono&lt;FilePart&gt; part) throws Exception{
           return part.flatMap(file -&gt; imageService.saveImage(file));
      }
  }
  </code></pre>
  
  <p>But I keep getting a 415 with the following error message:</p>
  
  <pre><code>Response status 415 with reason "Content type 'multipart/form-data;boundary=--0b227e57d1a5ca41' not supported\
  </code></pre>
  
  <p>Not sure what the issue is, I'm curling the API the following way:</p>
  
  <pre><code> curl -v -F "file=@jinyang.gif" -H "Content-Type: multipart/form-data" localhost:8080/images
  </code></pre>
  
  <p>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:</p>
  
  <p><a href="https://stackoverflow.com/questions/43066619/how-to-enable-spring-reactive-web-mvc-to-handle-multipart-file">How to enable Spring Reactive Web MVC to handle Multipart-file?</a></p>