How to integrate OneSignal Push Notification in Ionic React

Complete integration steps OneSignal Push Notification Ionic React

Install npm Package

npm install onesignal-cordova-plugin
npm install @ionic-native/onesignal
ionic cap sync

React apps must use Capacitor to build native mobile apps. However, Ionic Native (and therefore, Cordova plugins) can still be used.

// Install Core library (once per project)
npm install @ionic-native/core

In you App.tsx
import { Capacitor, Plugins } from ‘@capacitor/core’;
import { OneSignal } from ‘@ionic-native/onesignal’;