title: How to resize image on fly(express and S3)
body: <p>I am tring to get image from url and then to resize on fly without saving</p>
  
  <pre><code>var request = require('request');
      request
              .get('s3url')
              .on('response', function (response) {
                  console.log(response) // 200
                  console.log(response.headers['content-type']) // 'image/png'
              })
              .pipe(res)
  </code></pre>
  
  <p>I can now return same picture with <code>request</code> lib but how can I manipulate it and then return as response?</p>