unsubscribe() {
// can be null when session loading fails (e.g. expired token)
if (this.wsSubject$) {
this.wsSubject$.unsubscribe();
}
// topic is used as a flag for cancelling the reconnection
this.topic = null;
}
on(communication: Communication, callback: (event: CommunicationEvent) => any) {
this.eventStream.subscribe((event: CommunicationEvent) => {
if(event.name === communication.getName()) {
callback(event)
}
});
return this;
}
send(data: CommunicationEvent) {
this.eventStream.next(data);
}
constructor() {
this.eventStream = WebSocketSubject.create<CommunicationEvent>(`ws://${location.hostname}:8080`);
}