Can you please make Google Sign-In alongside with Facebook one?


I think it is better to have both client-side only (only on mobile device) and using game server for that.
As i see it is not complex to implement n iOS and on Windows Phone too.
As i see from description, Google API uses https + signature validation, so it will need something like OpenSSL But if there is an option to use only Android/iOS libs (without external SSL), it would be easy and awesome!