public static async Task Main(string[] args)
        {
            RestaurantManager restaurantManager = new RestaurantManager();

            restaurantManager.AddSampleData();
            XmlSerializer xmlSerializer = new XmlSerializer(restaurantManager.GetType());

            RestaurantManager restaurant = new RestaurantManager();

            restaurant.AddSampleData();
            API api = new API(restaurant);
            int port;

            if (args.Length > 0)
            {
                port = Int32.Parse(args[0]);
            }
            else
            {
                TcpListener l = new TcpListener(IPAddress.Loopback, 0);
                l.Start();
                port = ((IPEndPoint)l.LocalEndpoint).Port;
                l.Stop();
                port = 51359;
            }

            Console.WriteLine("Port: " + port);
            Action <WebSocketConnection> action = api.HandleConnectedClient;

            WebSocketServer.Server(port, action);

            while (!finish)
            {
            }
        }