import Birdsong

…

let socket = Socket(url: NSURL(string: "http://localhost:4000/socket/websocket")!)

socket.onConnect = {
    let channel = self.socket.channel("rooms:some-topic", payload: ["user": "spartacus"])
    channel.on("new:msg", callback: { message in
        self.displayMessage(message)
    })

    channel.join().receive("ok", callback: { payload in
        print("Successfully joined: \(channel.topic)")
    })

    channel.send("new:msg", payload: ["body": "Hello!"])
        .receive("ok", callback: { response in
            print("Sent a message!")
        })
        .receive("error", callback: { reason in
            print("Message didn't send: \(reason)")
        })

    // Presence support.
    channel.presence.onStateChange = { newState in
        // newState = dict where key = unique ID, value = array of metas.
        print("New presence state: \(newState)")
    }

    channel.presence.onJoin = { id, meta in
        print("Join: user with id \(id) with meta entry: \(meta)")
    }

    channel.presence.onLeave = { id, meta in
        print("Leave: user with id \(id) with meta entry: \(meta)")
    }
}