getSessionId method
Inquiry method that gets the ID associated by the server to this client session.
Lifecycle If a session is not currently active, null is returned; soon after a session is established, the value will become available.
Notification A change to this setting will be notified through a call to ClientListener.onPropertyChange with argument "sessionId" on any ClientListener listening to the related LightstreamerClient.
Returns ID assigned by the Server to this client session, or null.
Implementation
external String? getSessionId();