title: How to know if a zero bytes video was uploaded to a gcp bucket?
body: <p>As the title says, I need to fetch the size of the video / object I just uploaded to the bucket. </p>
  
  <p>Every few seconds, an object is uploaded to my bucket which is of the form, <code>{id}/video1.mp4</code>. </p>
  
  <p>I want to make use of google cloud storage <a href="https://cloud.google.com/functions/docs/calling/storage" rel="nofollow noreferrer">triggers</a>  which would alert me if a 0 byte video was added. Can someone pls suggest me how to access the size of the added object. </p>