react-native-firebase: onNotificationOpenedApp and getInitialNotification not working on iOS

Question

I'm using Cloud Messaging from react-native-firebase 7.0.1.

I do not want to store iOS device tokens in firebase, so I'm using getAPNSToken() method and then storing it on my backend.

I'm able to send notification on a device and after pressing it, the application opens.

But when I'm trying to get message from getInitialNotification() or onNotificationOpenedApp() it always returns null/undefined.

It works every time on Android.

PushHandler.js

import React from 'react';
import messaging from '@react-native-firebase/messaging';

export default class PushHandler extends React.Component {
  constructor(props) {
    super(props);
    this.messageApp = messaging();
  }

  componentDidMount() {
    this.messageApp.onNotificationOpenedApp(remoteMessage => {
      if (remoteMessage) { // <- always null on iOS
        // handle notification
      }
    });

    this.messageApp.getInitialNotification().then(initialMessage => {
      if (initialMessage) { // <- always undefined on iOS
        // handle notification
      }
    });
  }
  render() {
    return null;
  }
}

Answer 1

Just realized that according to the docs, these functions only work when sending and receiving notifications via FCM, which is why you aren't seeing these work when sending them manually through APNS.

This package will allow for leverage getInitialNotification and the other function: https://github.com/react-native-community/push-notification-ios