API Reference > imodeljs-frontend > NativeApp > NotificationHandler NotificationHandler Class Base class for all implementations of an Ipc notification response interface. This class is implemented on your frontend to supply methods to receive notifications from your backend. Create a subclass to implement your Ipc response interface. Your class should be declared like this: class MyNotificationHandler extends NotificationHandler implements MyNotifications to ensure all method names and signatures are correct. Your methods cannot have a return value. Then, call MyNotificationHandler.register at startup to connect your class to your channel. Extended by BriefcaseNotificationHandler Methods Name Description constructor(): NotificationHandler registerImpl(): RemoveFunction register(): RemoveFunction Static Register this class as the handler for notifications on its channel. Properties Name Type Description channelName Accessor AbstractReadOnly string All subclasses must implement this method to specify their response channel name. Defined in core/frontend/src/IpcApp.ts Line 151 Last Updated: 12 June, 2024