the scope photoslibrary.readonly、photoslibrary has been deprecated and will be removed after March 31, 2025.

After this date, any API calls using only this scope will return a 403 PERMISSION_DENIED error.

What should you do?

For reading photos, use the https://www.googleapis.com/auth/photoslibrary.readonly.appcreateddata scope.

For other use cases, review the latest Google Photos API documentation for supported scopes and migration instructions.

Reference:

https://developers.google.com/photos/support/updates#affected-scopes-methods