This is a demonstration app for Google login and Drive. It is a sample that shows how to handle logging in with Google and how to store and link files in the user's Drive.
For a more detailed description, check out these 2 blog posts:
It uses AngularJS as the framework.
At the Auth section, you can see whether you are logged in or not, and also you can log in. Logging in is done via Google auth.
At the Drive section, you can upload images to your drive account and see them below. The exact sequence of actions are:
Note: If you log in, then you should revoke access from this app at the Account Permissions page. Also you should delete the Drive API From JS Sample directory from your Drive.