Google Authentication for Users

Google Api Client works for authenticating accounts which can be used for calling/executing google apis, this works where developer/admins want to access organization google apps/data.  Now if we want to access google api/data for end users then we need to somehow open google api client for end user, this is where we need this module.

This module offers admins/developers option to create a Google api client account which can be configured to be used for end user authentication.   This authenticated account is now a separate entity called gauth_user which is linked with the user.