title: Implementing ng2-file-upload
body: <p>I am trying to explore trying to use ng2-file-upload but having some trouble understanding how to implement it as the readme is quite sparse. Are there anymore details that can help me get started on this. I am trying to create a demo app to upload images and save them in the server as a start.</p>
  
  <p>I checked out the demo page here, <a href="http://valor-software.com/ng2-file-upload/" rel="nofollow">http://valor-software.com/ng2-file-upload/</a></p>
  
  <p>A few questions if anyone can help.</p>
  
  <ol>
  <li><p>For the typescript page, const URL refers to an API and in the example, it is '<a href="https://evening-anchorage-3159.herokuapp.com/api/" rel="nofollow">https://evening-anchorage-3159.herokuapp.com/api/</a>'.</p></li>
  <li><p>There is a file-catcher.js file in the demo/component/file-upload directory. Can anyone explain what this does and whether it is needed? Seems like an express app. </p></li>
  </ol>
  
  <p>Or any other way to implement an image upload function is also welcomed. Thanks.</p>