Network status validating identity
However, in some cases, a single action controls access to more than one operation.
Alternatively, some operations require several different actions.
Before your application can use Google's OAuth 2.0 authentication system for user login, you must set up a project in the Google API Console to obtain OAuth 2.0 credentials, set a redirect URI, and (optionally) customize the branding information that your users see on the user-consent screen.
If you need to implement an implicit flow, we highly recommend using Google Sign-In.
Make sure you set up your app in the API Console to enable it to use these protocols and authenticate your users.
ID tokens are a standardized feature of Open ID Connect designed for use in sharing identity assertions on the Internet.
The most commonly used approaches for authenticating a user and obtaining an ID token are called the "server" flow and the "implicit" flow.