Add Firebase Service Worker to public.

client/public/firebase-messaging-sw.js

@@ -0,0 +1,56 @@
+// Scripts for firebase and firebase messaging
+importScripts("https://www.gstatic.com/firebasejs/8.2.0/firebase-app.js");
+importScripts("https://www.gstatic.com/firebasejs/8.2.0/firebase-messaging.js");
+
+// Initialize the Firebase app in the service worker by passing the generated config
+let firebaseConfig;
+switch (this.location.hostname) {
+  case "localhost":
+    firebaseConfig = {
+      apiKey: "AIzaSyDPLT8GiDHDR1R4nI66Qi0BY1aYviDPioc",
+      authDomain: "imex-dev.firebaseapp.com",
+      databaseURL: "https://imex-dev.firebaseio.com",
+      projectId: "imex-dev",
+      storageBucket: "imex-dev.appspot.com",
+      messagingSenderId: "759548147434",
+      appId: "1:759548147434:web:e8239868a48ceb36700993",
+      measurementId: "G-K5XRBVVB4S",
+    };
+    break;
+  case "test.imex.online":
+    firebaseConfig = {
+      apiKey: "AIzaSyBw7_GTy7GtQyfkIRPVrWHEGKfcqeyXw0c",
+      authDomain: "imex-test.firebaseapp.com",
+      projectId: "imex-test",
+      storageBucket: "imex-test.appspot.com",
+      messagingSenderId: "991923618608",
+      appId: "1:991923618608:web:633437569cdad78299bef5",
+      // measurementId: "${config.measurementId}",
+    };
+    break;
+  case "imex.online":
+  default:
+    firebaseConfig = {
+      apiKey: "AIzaSyDSezy-jGJreo7ulgpLdlpOwAOrgcaEkhU",
+      authDomain: "imex-prod.firebaseapp.com",
+      databaseURL: "https://imex-prod.firebaseio.com",
+      projectId: "imex-prod",
+      storageBucket: "imex-prod.appspot.com",
+      messagingSenderId: "253497221485",
+      appId: "1:253497221485:web:3c81c483b94db84b227a64",
+      measurementId: "G-NTWBKG2L0M",
+    };
+}
+
+firebase.initializeApp(firebaseConfig);
+
+// Retrieve firebase messaging
+const messaging = firebase.messaging();
+
+messaging.onBackgroundMessage(function (payload) {
+  // Customize notification here
+  const channel = new BroadcastChannel("imex-sw-messages");
+  channel.postMessage(payload);
+
+  //self.registration.showNotification(notificationTitle, notificationOptions);
+});

client/src/utils/fcm-handler.js

@@ -1,4 +1,5 @@
 export default async function FcmHandler({ client, payload }) {
+  console.log("FCM", payload);
   switch (payload.type) {
     case "messaging-inbound":
       client.cache.modify({