https://www.bonita.de/firebase-messaging-sw.js

1if('function' === typeof importScripts) {
2    const firebaseVersion = '8.9.1';
3
4    importScripts("https://www.gstatic.com/firebasejs/" + firebaseVersion + "/firebase-app.js");
5    importScripts("https://www.gstatic.com/firebasejs/" + firebaseVersion + "/firebase-messaging.js");
6    addEventListener('message', onMessage);
7
8    function onMessage(e) {
9        // do some work here
10    }
11
12    // Initialize the Firebase app in the service worker by passing in the
13    // messagingSenderId.
14    const firebaseConfig = {
15        apiKey: "AIzaSyCGYkdBp6Kju8EgyTj6AlU7sCc0CvnM9Uw",
16        authDomain: "bonita-de-webpush.firebaseapp.com",
17        projectId: "bonita-de-webpush",
18        storageBucket: "bonita-de-webpush.appspot.com",
19        messagingSenderId: "615918341054",
20        appId: "1:615918341054:web:e2dc82c78f5aea651d87ef",
21        measurementId: "G-WR63046W02"
22    };
23
24    firebase.initializeApp(firebaseConfig);
25
26    // Retrieve an instance of Firebase Messaging so that it can handle background messages.
27    const messaging = firebase.messaging();
28
29    messaging.onBackgroundMessage(function(payload) {
30        // do some work here
31
32        /*
33        if (!payload.notification && payload.webpush && payload.webpush.notification) {
34            const notificationTitle = payload.webpush.notification.title;
35            const notificationOptions = payload.webpush.notification;
36
37            if (notificationOptions.image && !notificationOptions.icon) {
38                notificationOptions.icon = notificationOptions.image;
39            }
40
41            return self.registration.showNotification(
42                notificationTitle,
43                notificationOptions
44            );
45        }
46        */
47    });
48}