Dart library which implements the protocol for the Nadron (https://github.com/menacher/java-game-server/tree/netty4)
Config config = new Config(["user", "pass", "reconnectKey"]);
Function _onStart = (Session session) => print("connected");
Session session =
new Session("ws:https://localhost:18090/nadsocket", config, _onStart);
session.send(new NadEvent(NadEvent.SESSION_MESSAGE, {"text": "test"}));
session.addHandler(NadEvent.ANY,
(NadEvent e) => print("Event any " + (e != null ? e.toString() : "null")));