title: Node.js: multi-part file upload via REST API
body: <p>I would like to upload invoking a REST endpoint in multi-part.</p>
  
  <p>In particular, I am looking at this API: <a href="https://cloud.google.com/storage/docs/json_api/v1/objects/insert" rel="nofollow noreferrer">Google Cloud Storage: Objects: insert</a></p>
  
  <p>I did read about using <strong>multer</strong>, however I did not find any complete example showing me how to perform this operation.</p>
  
  <p>Could someone help me with that?</p>