Pusher：无法广播客户端事件

Question

我正在使用 laravel 5 开发一个会议应用程序，我决定为此实现一个 webRTC 解决方案。
所以，我使用 Pusher 来发送信号，但我有一个问题：我正在使用 SimplePeerJs 来处理 webRTC 的事情，当我触发了一个事件（在订阅和其他东西之后），我有以下错误：

Pusher : Error : {"type":"WebSocketError","error":{"type":"PusherError","data":{"code":null,"message":"Cannot broadcast client event (connection not subscribed to channel presence-chat)"}}}.

我的代码是：

Pusher.log = function(message) {
            if (window.console && window.console.log)
            {
                window.console.log(message);
            }
        };
        var currentUser = {
            nom: '{{ auth()->user()->first_name }}',
            id: {{ auth()->user()->id }},
            stream: undefined
        };
        var pusher = new Pusher('my_app_key', {
            authEndpoint: 'pusher/auth',
            auth: {
                headers: {
                    'X-CSRF-Token': '{{ csrf_token() }}'
                },
                params: {
                    name: currentUser.name,
                    id: currentUser.id
                }
            }
        });

        var channel = pusher.subscribe('presence-chat');

        var callback = function() {
            console.log('Channel members:', channel.members);
        };
        //
        channel.bind('pusher:subscription_succeeded', callback);
        channel.bind('pusher:subscription_error', function(PusherError){
            console.log(PusherError);
        });
        channel.bind('pusher:member_added', function(){
            console.log('Member Added');
        });
        channel.bind('pusher:member_removed', function(){
            console.log('Member Removed');
        });
        //peers stuff
        var peer = new SimplePeer({ initiator: true });

        peer.on('signal', function (data) {
            channel.trigger('client-signal-' + currentUser.id,
                    {
                        userId: currentUser.id,
                        data: data
                    });
        });

        peer.on('ready', function () {
            peer.send('hey peer, how is it going?')
        });

有什么想法吗？ 谢谢。

Answer 1

问题是 Pusher 客户端在触发 peer.on('signal') 之前没有机会连接和订阅频道。您是否尝试将 peers 的东西移到订阅回调中？

var callback = function() {
  console.log('Channel members:', channel.members);

  //peers stuff
  var peer = new SimplePeer({ initiator: true });

  peer.on('signal', function (data) {
    channel.trigger('client-signal-' + currentUser.id,
                {
                    userId: currentUser.id,
                    data: data
                });
  });

  peer.on('ready', function () {
    peer.send('hey peer, how is it going?')
  });
});