Encountering a 415 Error while making an ajax call using formData

I am attempting to make an ajax call with formData that includes a list of image files and some strings. However, the call is not successful and I am receiving error 415.

Here is the code:

var file = picChooser.files[0];

var jobExecutionImagesContext = new FormData();
jobExecutionImagesContext.append('file', [file, file]);
jobExecutionImagesContext.append('apptId', '123456789rt78');
jobExecutionImagesContext.append('keyPrefix','images/start');

 var request =  new XMLHttpRequest();
  request.open('POST', "/example/images", true);
  request.addEventListener('error', function(response) {console.log("failed ajax call: {}", response); }, false);
  request.addEventListener('load', function(response) {console.log("succeeded ajax call: {}", response);}, false);
  request.addEventListener('abort', function(response) {console.log("failed ajax call: {}", response); }, false);
 request.send(jobExecutionImagesContext);

Java controller code:

 @RequestMapping(value = {"/example/images"}, method = RequestMethod.POST)
    public @ResponseBody String capturePhotos(final HttpServletRequest request,final HttpServletResponse response) {
      

Answer №1

The 415 status code denotes an Unsupported Media Type error. This occurs when the content type is not specified. Make sure to set your content type to

'Content-Type' : 'application/json'
.

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