Facebook Instant Games game bot connectivity with game

Hi, I have little query that about facebook instant games game bot. I created a bot and deployed it on glitch. But how to connect bot with game for communication. Any guide or demo will be appreciated. :slight_smile:

i used

FBInstant.player.canSubscribeBotAsync().then(

    can_subscribe => {
             console.log("can subscribe "+can_subscribe)
            //return can_subscribe;
            FBInstant.player.subscribeBotAsync().then(function(){
                // Player is subscribed to the bot
                console.log("inside bot");
            }).catch(function (e) {
                // Handle subscription failure
                 console.log("inside bot failed");
             });
       }
       );

Also where to use it. i am using it in start method