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Google Drive REST API v3 based integration: Google Drive API Link Authentication is handled through OAuth 2.0 (OAuth Wikipedia Link), ensuring secure, user-consented access to Google Drive data.

!!! Proxy Configuration: If your server accesses the internet through a proxy, make sure to whitelist the following domains for Google Authentication and Drive access:
- oauth2.googleapis.com
- www.googleapis.com

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1. Google OAuth 2.0 Configuration
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Start by navigating to Google APIs & Services: Google APIs & Services Link
!!!Note: Ensure sure the Google Drive API is enabled at Enabled APIs & services. Google API Library Link




Go to the Credentials menu, click on Create Credentials, and select OAuth client ID:


Select the application type: Web application. Provide a unique name. Then, configure the Authorized redirect URI—this is where Google will redirect you after authorization. The Redirect URL must end with ?command=register_gdrive_api.

    http://127.0.0.1:9090/?command=register_gdrive_api

or

    
    https://your.crushftp.domain.com/?command=register_gdrive_api
    

Finally, click the Create button.



After the credentials are created, copy the Client ID and Client Secret.



!!! Note: You can configure the OAuth consent screen by clicking the link above the Authorized JavaScript origins section:
"The domains you enter in the fields below will be automatically added to your OAuth consent screen as authorized domains."
Click the link to open the OAuth consent screen settings, complete the configuration, and authorize your CrushFTP domain.

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2. Gdrive Remote Item Settings:
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Select the GDrive item type and click the Get Refresh Token button.


!!! Note: To obtain the Refresh Token, the CrushFTP WebInterface’s host and port must match the Redirect URL specified in the Google APIs & Services-> Credentials -> OAuth 2.0 Client IDs. In our example, it was: http://127.0.0.1:9090 or https://your.crushftp.domain.com/

Enter the Client ID , Client Secret. Proceed with the authentication and authorization process.
!!! Note: Be sure to sign in with the Google Account that has the necessary permissions, as configured in the Google APIs & Services-> Credentials -> OAuth 2.0 Client IDs. This will automatically configure the User name and Password.


If the domain is unverified, a warning message may appear. Click Advanced and choose to proceed:



Click on the Allow button:





Enable Team Drive: Enable this option to allow access to Shared Drives (formerly Team Drives) in Google Drive. When selected, file operations will include content stored in Shared Drives, not just the user’s personal My Drive. This is useful when your organization collaborates using Google Workspace Shared Drives.

Keep File ID on Overwrite: Enable this option to retain the original file’s ID when overwriting a file in Google Drive. Instead of deleting and re-uploading the file (which generates a new ID), the existing file is updated in-place. This ensures that any shared links or references to the file remain valid after an overwrite.