OAuth2 security with Google tokens provider

3

So isn’t it possible to integrate Google for OAuth2 without Tyk Identity Broker?

If possible can you please guide me with the steps for accomplishing the same.

I am also confused with OAuth integration keywords like “auth_login_redirect”. Is it for the

{{ host/protected-endpoint }}

which I have created to which the control will come once Identity Provider gave the access token or is it some of the Identity provider specific url or anything else?

and also this part:

notifications: {
        shared_secret: "9878767657654343123434556564444",
        oauth_on_keychange_url: "http://posttestserver.com/post.php?dir=oauth_notifications"
      }

Urgent help is highly appreciated.

Thanks