Play game with FB friends

I am working on multiplayer game for which I want to add functionality related to facebook friend invitation.
For this I have implemented https://github.com/fbsamples/friendsmash-unity example provided by facebook and it work as expected.

At present in game player can send request to his friends and friends receive his notation and move to game.

Now I want to add functionality like connected friends play game in same room. I want some suggestion regarding this implementation and only concept become enough for me.

 

What is your networking solution for the game? The solution depends on how the multiplayer works.

 

I don't understand your message. Please give some information about your last post.
So that you can help me.
I want to implement facebook functionality as per this game have : https://play.google.com/store/apps/details?id=com.octro.teenpatti