code: function (file, responseText) {
          console.log(responseText); // console should show the ID you pointed to
          // read the upload path from the elements data-upload attribute.
          var uploadPath = $(this.dropzone.element).data("upload") + responseText;
          var linkToUploadedFile = "(" + uploadPath + ")";
          if ( file.type.startsWith( "image/" ) ) {
              linkToUploadedFile = "![]" + linkToUploadedFile;
          } else {
              linkToUploadedFile = "[" + responseText + "]" + linkToUploadedFile;
          }
          this.simplemde.value(this.simplemde.value() + "\n" + linkToUploadedFile + "\n");
      }
docs: Handle the event when the user successfully uploads a file via Dropzone
  @prop file [string]
  @prop responseText [string]