Google Sign-in integration

Hi,
I’m looking for integration on Goolge Sign-in for iOS and Android i.e. easy login in application using the Google account similiar to Facebook login .

There some example for Android ( https://developers.google.com/identity/sign-in/android/start-integrating ) and for iOS ( https://developers.google.com/identity/sign-in/ios )

Is something similar existing for OpenFL ? ( without using google play service )