title: Firebase Storage: Is it possible to auto - delete old files?
body: <p>I use firebase cloud storage to upload images.</p>
  
  <p>The app I am working on allows users to send images to one another (a chat thing), so that one user uploads the photo and another one will download it and once it is downloaded it should be deleted from the storage.</p>
  
  <p><strong>Example of what I am talking about</strong></p>
  
  <p>User A sends a photo to User B by uploading it to firebase storage, then User B notices that User A send him an image and decides to download it, after User B downloaded the image it should be deleted from storage.</p>
  
  <p><strong>My question</strong></p>
  
  <p>What if User A sends too many images and User B never downloads any of these images. Then this means that I will end with useless images on storage taking space.</p>
  
  <p>So in this case is there a way in firebase to auto delete a file after it has been uploaded after (n) amount of time (not client side)?</p>