icon add

firebase-messaging-sw.js

@@ -1,11 +1,29 @@
- if ('serviceWorker' in navigator) {
-    navigator.serviceWorker.register('./firebase-messaging-sw.js')
-      .then(function(registration) {
-        console.log('Registration successful, scope is:', registration.scope);
-      }).catch(function(err) {
-        console.log('Service worker registration failed, error:', err);
-      });
-    } 
+if ("serviceWorker" in navigator) {
+  navigator.serviceWorker
+    .register("./firebase-messaging-sw.js")
+    .then(function(registration) {
+      console.log("Registration successful, scope is:", registration.scope);
+      messaging.getToken({vapidKey: 'BEuyzkUKcx4FSs-6GaIz_si2oV5Ut7e5ZEtcrVvr5L_tMVWZtS1NTqdtQkih5QCt2FZKuRUxZIaLm5GaxI6nJEw', serviceWorkerRegistration : registration })
+        .then((currentToken) => {
+          if (currentToken) {
+            console.log('current token for client: ', currentToken);
+  
+            // Track the token -> client mapping, by sending to backend server
+            // show on the UI that permission is secured
+          } else {
+            console.log('No registration token available. Request permission to generate one.');
+  
+            // shows on the UI that permission is required 
+          }
+        }).catch((err) => {
+          console.log('An error occurred while retrieving token. ', err);
+          // catch error while creating client token
+        });  
+      })
+      .catch(function(err) {
+        console.log("Service worker registration failed, error:"  , err );
+    }); 
+  }
 // Scripts for firebase and firebase messaging