Updating example

demo/src/app/components/file-upload/simple-demo.html

@@ -115,4 +115,16 @@
 
     </div>
 
+    <br><br>
+
+    <div class="row">
+        <div class="col-md-12">
+            <div class="panel panel-default">
+                <div class="panel-heading">Response</div>
+                <div class="panel-body">
+                  {{ response }}
+                </div>
+            </div>
+        </div>
+    </div>
 </div>

demo/src/app/components/file-upload/simple-demo.ts

@@ -9,9 +9,36 @@ const URL = 'https://evening-anchorage-3159.herokuapp.com/api/';
   templateUrl: './simple-demo.html'
 })
 export class SimpleDemoComponent {
-  public uploader:FileUploader = new FileUploader({url: URL});
-  public hasBaseDropZoneOver:boolean = false;
-  public hasAnotherDropZoneOver:boolean = false;
+
+  uploader:FileUploader;
+  hasBaseDropZoneOver:boolean;
+  hasAnotherDropZoneOver:boolean;
+  response:string;
+
+  constructor (){
+    this.uploader = new FileUploader({
+      url: URL,
+      disableMultipart: true, // 'DisableMultipart' must be 'true' for formatDataFunction to be called.
+      formatDataFunctionIsAsync: true,
+      formatDataFunction: async (item) => {
+        return new Promise( (resolve, reject) => {
+          resolve({
+            name: item._file.name,
+            length: item._file.size,
+            contentType: item._file.type,
+            date: new Date()
+          });
+        });
+      }
+    });
+
+    this.hasBaseDropZoneOver = false;
+    this.hasAnotherDropZoneOver = false;
+
+    this.response = '';
+
+    this.uploader.response.subscribe( res => this.response = res );
+  }
 
   public fileOverBase(e:any):void {
     this.hasBaseDropZoneOver = e;

demo/src/doc.md

@@ -25,6 +25,9 @@ import { FileSelectDirective, FileDropDirective, FileUploader } from 'ng2-file-u
   1. `url` - URL of File Uploader's route
   2. `authToken` - auth token that will be applied as 'Authorization' header during file send.
   3. `disableMultipart` - If 'true', disable using a multipart form for file upload and instead stream the file. Some APIs (e.g. Amazon S3) may expect the file to be streamed rather than sent via a form. Defaults to false.
+  4. `itemAlias` - item alias (form name redefenition)
+  5. `formatDataFunction` - Function to modify the request body. 'DisableMultipart' must be 'true' for this function to be called.
+  6. `formatDataFunctionIsAsync` - Informs if the function sent in 'formatDataFunction' is asynchronous. Defaults to false.
 
 ## FileDrop API
 
@@ -37,3 +40,4 @@ import { FileSelectDirective, FileDropDirective, FileUploader } from 'ng2-file-u
   - `fileOver` - it fires during 'over' and 'out' events for Drop Area; returns `boolean`: `true` if file is over Drop Area, `false` in case of out.
   See using in [ts demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.ts) and
   [html demo](https://github.com/valor-software/ng2-file-upload/blob/master/demo/components/file-upload/simple-demo.html)
+  - `onFileDrop` - it fires after a file has been dropped on a Drop Area; you can pass in `$event` to get the list of files that were dropped. i.e. `(onFileDrop)="dropped($event)"`

demo/src/tsconfig.json

@@ -3,7 +3,7 @@
     "declaration": false,
     "emitDecoratorMetadata": true,
     "experimentalDecorators": true,
-    "noEmitHelpers" :true,
+    "noEmitHelpers": false,
     "lib": ["es6", "dom"],
     "types": [
       "jasmine",