Facebook Game Room?

Hi, can anyone tell me if I can use cocos2d to build games for Facebook game room? If so would this need to be java script?

Yes you can Facebook Game Room supports both native game and js game

So to publish on face book, if I build i c++ game can this be run in the facebook feed or on messenger somehow?

If you build c++ game, you can only run it in the Game Room Client, if you build JS game, you can run it on messenger, facebook web and PC client

According to this: https://developers.facebook.com/docs/games/gameroom?locale=en_US#faq_599423750241900
seems to me like your game needs to be made in unity to work.

Edit: oh looks like you need to sign up for the closed beta to get the sdk https://www.facebook.com/help/contact/gameroom_platform_sdk