[Feature Request] Allow publishers to register an event listener using the `subscriptions` object

[ed-bird]

Using the existing registerEventListener or registerEventFilterer methods, publishers should be able to register their own event listener to track SwG events.

For example:

subscriptions.registerEventListener(function (event) { 
  // Send event to publisher server
});

I think exposing the entire eventManager object might be too much as that could be used to push new events instead of just registering the listener.

[martinschierle]

The linked issue seems fixed, and I just tried it one of out pubs, and it seems to work well - am I correct that we can consider this launched and document as needed on devsite? Syntax seems to be:

subscriptions.getEventManager().then(manager => {
manager.registerEventListener((e) => sendToMyAnalytics(e))
});

[martinschierle]

Although giving it a second look - the events only carry an eventType ID:

While pub can probably look up relevant IDs in this repo, might it be worth to give them an interface to get a speaking name/type as well?