Google Authentication using OWIN Oauth in MVC5 not hitting ExternalLoginCallback function

Question

I am currently upgrading my login process for Google to use OAuth before they depricate their OpenID login method.

The steps I have Identified so far is that I have

Answer 1

Try only this

var googleOAuth2AuthenticationOptions = new GoogleOAuth2AuthenticationOptions
        {
            ClientId = "MYCLIENTID",
            ClientSecret = "MYSECRET",
        };
app.UseGoogleAuthentication(googleOAuth2AuthenticationOptions);

This worked for me