A simple web API written using ASP.NET Web API and Microsoft OWIN for OAuth2 social authentication with Google or Facebook.

In web.config change app settings for:

• Google.ClientId and Google.ClientSecret.
• Facebook.AppId and Facebook.AppSecret.

OAuth2 redirect callbacks:

• http://localhost:54325/oauth2/google/callback
• http://localhost:54325/oauth2/facebook/callback

CORS: update urls in index.html. See more about using custom domains with IIS Express here.

• Facebook for Developers
• Google Developers Console