Hi there,
I am an expert Full Stack Developer with more than two years of experience. From what I understand from the project description:
1. You have a facebook game and you want code such that certain data or events are communicated to your server over asynchronous network request.
2. You have a server setup that has been setup to receive the request and respond accordingly with either HTML, JSON, XML or Plain Text.
I can get this done for you. To get started, you need share what data you want to communicate to your server, what will be the parameters for an asynchronous request to your server and how you want to inform your game of the response. Share the details with me and I would be glad to provide any assistance I can. Thanks today for your time and consideration.