Install gcloud command line utility
Windows
https://cloud.google.com/sdk/docs/install-sdk#windows
This will make a new “gcloud” command available your command prompt/terminal. The windows version also installs an app shortcut which launches a command prompt window and calls the “gloud init” command. Alternatively, manually launch the windows command prompt and enter “gloud init”.
Mac
https://cloud.google.com/sdk/docs/install-sdk#mac
Launch the Terminal and enter “gcloud init”
Authenticate
- The gcloud init command will bring up a browser window and will prompt you to log into your google account to confirm access to the command line app.
- From command/terminal window, select your Firebase project as the default project.
- Your Firebase project ID can be found by clicking the gear icon on the top left of your project page and selecting "Project Setting" -> "General"
Download
From the Firebase web console, select "Storage" module.
If necessary, navigate to the subfolder that contains the files you wish to download and then click the "link" icon to copy the folder's path to the clipboard. Save this [FOLDER_PATH] for later.
Next, set up a folder on your computer to store the downloaded files. From the command prompt “cd” to the folder you just created (for example cd /Users/jane/desktop/myfiles) and then run the following:
gsutil -m cp -R gs://[FOLDER_PATH] ./
For example, if the project ID was "my-super-project" and the folder path was gs://my-super-project.appspot.com/audio/subject1
gsutil -m cp -R gs://my-super-project.appspot.com/audio/subject1 ./
Note that this downloads all files in the [FOLDER_PATH] in a single command which could use up a large amount of the free tier's limited bandwidth depending on the total size of the stored data. It is recommended that you plan to download files in smaller batches.