Listening to Subscriber Events

Listening to Subscriber Events

The Subscriber(s) included in the SDK are event emitters that have a basic API to subscribing and unsubscribing to events either by name or by wildcard.

To subscribe to all events from a subscriber:

function handleSubscriberEvent (event) {
  // The name of the event:
  var type = event.type;
  // The dispatching publisher instance:
  var subscriber = event.subscriber;
  // Optional data releated to the event (not available on all events):
  var data = event.data;
}

var subscriber = new red5prosdk.RTCSubscriber();
subscriber.on('*', handleSubscriberEvent);

The * type assignment is considered a "Wildcard" subscription - all events being issued by the subscriber instance will invoke the assign event handler.

To unsubscribe to all events from a subscriber after assinging an event handler:

subscriber.off('*', handleSubscriberEvent);

The following sections of this document describe the event types that can also be listened to directly, instead of using the * wildcard.