title: Unable to send body parameter in Dart/ Flutter multipart request
body: <p>I m trying to upload image using Multipart request using Dart/ Flutter.
  but parameter not getting on serverside.</p>
  
  <pre><code>  var request = http.MultipartRequest('POST', uri);
      request.fields['access_token'] = token;
      request.files.add(await http.MultipartFile.fromBytes(
            'image', path.readAsBytesSync(),
            contentType: MediaType('image', 'jpeg')));
      request.headers['Content-Type'] = "multipart/form-data";
      request.headers['access_token'] = token;
  
      var response = await request.send();
  </code></pre>