Implimenting Push-notification in React-native Note: To send push notification you have to implement firebase first for implementing firebase check my previour blog 1. Install Package = @react-native-firebase/messaging, 2.FcmService.js import messaging from '@react-native-firebase/messaging' ; import { Platform } from 'react-native' ; class FCMService { register = ( onRegister , onNotification , onOpenNotification ) => { this . checkPermission ( onRegister ) this . createNotificationListeners ( onRegister , onNotification , onOpenNotification ) } registerAppWithFCM = async () => { if ( Platform . OS === 'ios' ){ await messaging (). registerDeviceForRemoteMessages (); await messaging . setAutoInitEnabled ( true ) } } checkPermission = ( onRegister ) => {