It has taken us a lot of effort to get to a basic signaling server to connect two WebRTC users. At this point, you may be wondering how signaling servers are built in the real world for production applications. Since signaling is such an abstract concept that is not defined by the WebRTC specification, the answer is that anything goes.
Signaling is such a complex and difficult issue to solve because of the "anything goes" mentality it brings. There are many resources out there offered by the WebRTC makers, but none of them details how exactly signaling is best implemented for users. There are many issues to solve here and not all of them are the same for every use case. Some developers might need a highly scalable solution that can connect millions of users across the globe. Another developer might need a solution that integrates with Facebook, and another might need to integrate with Twitter. It is an extremely tough topic to cover and will require lots of time...
