title: Express js stream and download file
body: <p>I am trying to stream a file from an s3 location and download the file after streaming</p>
  
  <pre><code>     //get the url
      let url = s3Service.getSignedUrl({
              Bucket:process.env.s3BucketName,
              Key:'vault-files/'+filePath,
              Expires:240
             });
             console.log(url);
  
     //download
         let stream = res.attachment(url);
         stream.pipe(res);
  </code></pre>
  
  <p>I am getting the URL properly but it's not downloading properly</p>