[Vuejs]-Cycle.js – Driver – PhoenixJS (Websockets)

first of all, yes this is possible with a driver, and my suggestion will result in a driver that feels quite like the HTTP driver.

First of all to have some rough pseudo code that where I can explain everything, I might have misunderstood parts of your question so this might be wrong.

interface WebsocketMessage {
    channel: string;
    data: any;
}

function makeWebSocketDriver() {
    let socket = null;
    let token = null;
    let channels = {}
    return function websocketDriver(sink$: Stream<WebsocketMessage> {
        return xs.create({
            start: listener => {
                sink$.addListener({
                    next: ({ channel, data }) => {
                        if(channel === 'OPEN_SOCKET' && socket === null) {
                            token = data;
                            socket = new phoenix.Socket(FQDN, { token });
                            socketHandler.onOpen(() => listener.next({
                                channel: 'SOCKET_OPEN'
                            }));
                        } else {
                            if(channels[channel] === undefined) {
                                channels[channel] = new Channel(channel, { token });
                            }
                            channels[channel].join()
                                .receive('ok', () => {
                                    sendData(data);
                                });
                        }
                    }
                });
            }
        });
    };
}

This would be the rough structure of such a driver. You see it waits for a message with the token and then opens the socket. It also keeps track of the open channels and sends/receives in those based on the category of the message. This method just requires that all channels have unique names, I am not sure how your channel protocol works in that regard or what you want in particular.

I hope this enough to get you started, if you clarify the API of the channel send/receive and the socket, I might be able to help more. You are also always welcome to ask questions in our gitter channel