Flox is also easily integrated with Google+.

The usual way to go about this is logging in players to their Google+ account and then bind their game data to this account using Flox. Start out by using the code snippet below:

//Fetch the player's Google ID
var id:String = "john-doe-123";

//Hash the ID to ensure player privacy
var hash:String = createUID(16, "google-" + id);

//Authenticate the player with Flox
    function onComplete(player:Player) {
        //Yay! The player is logged in!
    function onError(message:String) {
        //Darn! Something went wrong while authenticating the player.

There’s more documentation on identifying players with Flox over here.