title: Extract uploaded files from Angularjs to Expressjs
body: <p>I use the following ways to upload file to angularjs, but how can I extract it from express js?        </p>
  
  <pre><code>    var formData = new FormData();
  
      formData.append('file', file);
  
      $http.post('/api/teams/upload', formData, {
          withCredentials: true,
          headers: {'Content-Type': undefined },
          transformRequest: angular.identity
      }).success(function(){
          console.log('upload success');
      }).error(function(){
          console.log('upload failed');
      });
  </code></pre>