title: Firebase Cloud Storage download url vs path
body: <p>I'm new to firebase storage and wants to know what is the best practice.
  I want to upload image to firebase cloud storage and was returned a download url which I then stored to firestore. Is the download url permanent? Other users will read from the firestore to get the url to download the image.</p>
  
  <p>But when I want to delete the image from CloudStorage, I only have the download url but not the file path. So do I delete it ?</p>
  
  <p>If I store the file path instead, how to get the download url ?</p>