title: Transfer Firebase Storage Bucket between projects
body: <p>I am attempting to copy the contents of a folder in one Firebase project's Storage bucket to the storage bucket of another Firebase project.</p>
  
  <p>I have been following the firestore <a href="https://firebase.google.com/docs/firestore/manage-data/move-data" rel="noreferrer">docs</a> and this <a href="https://stackoverflow.com/questions/54173698/firestore-and-storage-bucket-export-import-between-projects">SO question</a>.</p>
  
  <p>Both projects have the necessary permissions to other's service accounts.</p>
  
  <p>Here is what I have done:</p>
  
  <p>When attempting to transfer files from a folder in the default bucket of Project-A to the default bucket of Project-B using the cloud shell terminal, I first set the project to 'Project-A'. I then ran <code>gcloud beta firestore export gs://[PROJECT_A_ID] --collection-ids=[FOLDER_TO_TRANSFER] --async</code>. This succeeds and creates a folder called "2019-08-26T21:23:23_26014/" in Project-A. This folder contains some metadata. 
  Next, I tried beginning the import by setting the project to Project-B and running <code>gcloud beta firestore import gs://[PROJECT_A_ID]/2019-08-26T21:23:23_26014</code>
  This completes and the logs display this message:</p>
  
  <p><code>done: true
  metadata:
    '@type': type.googleapis.com/google.firestore.admin.v1beta1.ImportDocumentsMetadata
    collectionIds:
    - [FOLDER_TO_TRANSFER]
    endTime: '2019-08-26T21:25:56.794588Z'
    inputUriPrefix: gs://[PROJECT_A_ID]/2019-08-26T21:23:23_26014
    operationState: SUCCESSFUL
    startTime: '2019-08-26T21:25:19.689430Z'
  name: projects/[PROJECT_B]/databases/(default)/operations/[SOME_ID_STRING]
  response:
    '@type': type.googleapis.com/google.protobuf.Empty</code></p>
  
  <p>However, the Project-B storage bucket doesn't have any new files or folders. It looks like the import did nothing. Am I missing something?</p>