clientLink is not needed when websocket works in server link
Source
WebSocketConnection(this.socket, this.clientLink, {
this.onConnect,
bool enableAck: false,
DsCodec useCodec
}) {
if (useCodec != null) {
codec = useCodec;
}
if (!enableAck) {
nextMsgId = -1;
}
socket.binaryType = "arraybuffer";
_responderChannel = new PassiveChannel(this);
_requesterChannel = new PassiveChannel(this);
socket.onMessage.listen(_onData, onDone: _onDone);
socket.onClose.listen(_onDone);
socket.onOpen.listen(_onOpen);
// TODO, when it's used in client link, wait for the server to send {allowed} before complete this
_onRequestReadyCompleter.complete(new Future.value(_requesterChannel));
pingTimer = new Timer.periodic(const Duration(seconds: 20), onPingTimer);
}