This is cool, largely because of the functional perspective to dealing with pools of websockets. I personally think the next level for websockets infrastructure is building a paradigm for large pools of concurrent websocket connections.
Perhaps a microservces implementation with each step (handshake, broadcasting, http overhead) having their own cluster and communicating through channels.
Perhaps a microservces implementation with each step (handshake, broadcasting, http overhead) having their own cluster and communicating through channels.