https://efilm.online/firebase-messaging-sw.js

1importScripts("https://www.gstatic.com/firebasejs/7.9.1/firebase-app.js");
2importScripts("https://www.gstatic.com/firebasejs/7.9.1/firebase-messaging.js");
3if (!firebase.apps.length) {
4firebase.initializeApp({
5    apiKey: "AIzaSyAA4SSWZV5HyrT-8OPtOQ0XZg1apoCsN3o",
6    authDomain: "efilm-c1896.firebaseapp.com",
7    projectId: "efilm-c1896",
8    storageBucket: "efilm-c1896.appspot.com",
9    messagingSenderId: "1047123310993",
10    appId: "1:1047123310993:web:b01099d4748d28c5f38230",
11    measurementId: "G-2VV0LGWE1R"
12});
13firebase.messaging();
14//background notifications will be received here
15firebase.messaging().setBackgroundMessageHandler((payload) => console.log("payload", payload));
16}