I want to make a Xamarin.Forms project, targeting iOs, Android and Windows Phone.
My app needs to authenticate users, using Facebook.
Should I implement login for each platform independently, or use a manual flow?https://developers.facebook.com/docs/facebook-login/manually-build-a-login-flow/v2.0
I prefer to have a single implementation of the login flow, and use it on all platforms.
How can I get a single implementaion of the facebook login flow?