In the last blog post we introduced the Janus Event Handlers, and how they can be used to be asynchronously notified about whatever is happening within a Janus instance. We also presented a real example, where we saved the information associated with an EchoTest plugin session and the related WebRTC PeerConnection to a database for some analysis and evaluations. While a useful introduction, that article was not a comprehensive view of what can be done with events, especially in a complex application that may involve multiple multimedia streams, or even multiple Janus plugins at the same time. In fact, when…