title: Download File Using Alamofire 4.0 (Swift 3)
body: <p>In older version of Alamofire. This is how I download file</p>
  
  <pre><code>    let destinationPath = Alamofire.Request.suggestedDownloadDestination( directory: .documentDirectory, domain: .userDomainMask);
  
      Alamofire.download(.GET, urlString, destination: destinationPath)
          .progress { bytesRead, totalBytesRead, totalBytesExpectedToRead in
  //                print(totalBytesRead)
          }
          .response { request, response, _, error in
  
              let downloadedFilePath = destinationPath(URL(string: "")!, response!);
  
              NSUserDefaultsHelper.saveURL(downloadedFilePath, key: urlString);
  
              completion(downloadedFilePath, true);
      }
  </code></pre>
  
  <p>But now in the new version, my code is completely unusable and there is no similar function in the Alamofire library.</p>
  
  <p>Any ideas please?</p>