WebSocket connection to UnityBase server using ubNotifier protocol. The property supported indicate ubNotifier protocol is supported by server. Class mixes an EventEmitter. After got a command from a server the event with command code is fired.

The event flow are:

• just after webSocket connection is established connected event are fired, when
• after server accept (verify a user credential) accepted are fired - here you can got a connectionID of a current connection
• next is a series of protocol events ( test_command for example )
• in case of protocol error error are fired
• when WebSocket connection are closed disconnected event are fired

You do not need to connect or reconnect a WebSocket manually - UBNotifierWSProtocol recreate a WebSocket automatically just after corresponding UBConnection fires a authorized event.

For adminUI instance of this class is accessible from $App.ubNotifier just after $App.launch

Usage sample:

 // Server side
 const WebSockets = require('@unitybase/ub/modules/web-sockets');
 var notifier = WebSockets.getWSNotifier();
 if (notifier) {
     notifier.broadcast('test_command', {name: 'Homer', like: 'donuts'});
 }

 // Client side
 // Will output 'Homer like donuts' after got a `test_command` from server
 $App.ubNotifier.on('test_command', function(params}{
     console.debug(params.name, 'like', params.like)
 }

# new UBNotifierWSProtocol (connection:  UBConnection)

# supported : boolean instance

# sendCommand (command:  string, params:  *) instance

# _createWSConnection (session) inner

# _onUBConnectionAuthorized (ubConnection, session) inner