diff --git a/README.md b/README.md
index 230613f..e30fe0c 100644
--- a/README.md
+++ b/README.md
@@ -56,6 +56,7 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
Bharat Saraswat
💻 🎨 🤔 🐛 👀 ⚠️ 🖋 🚧 |
Ananyo Maiti
💻 👀 🐛 🖋 🚇 🚧 |
aditya_369
💻 |
+ 
Aarshad Devani
💻 |
diff --git a/_includes/head.html b/_includes/head.html
index 45e0a26..7a3ed53 100644
--- a/_includes/head.html
+++ b/_includes/head.html
@@ -54,6 +54,10 @@
+
+
+
+
+
diff --git a/assets/js/notifications.js b/assets/js/notifications.js
new file mode 100644
index 0000000..c7ac200
--- /dev/null
+++ b/assets/js/notifications.js
@@ -0,0 +1,173 @@
+const publicVapidKey =
+ "BAK9aUUilxzljIZVaKm8gjt6MWYsXQFbhluMMCFCddHbWug4_H48Q4XtbCwBSPZ9V3wcNUGr92twrEbmGMyABKU";
+const firebaseConfig = {
+ apiKey: "AIzaSyCZ8gbWs9FLlzw93BOj_OQzlWwd_F1N-IY",
+ authDomain: "pyconhyd.firebaseapp.com",
+ databaseURL: "https://pyconhyd.firebaseio.com",
+ projectId: "pyconhyd",
+ storageBucket: "pyconhyd.appspot.com",
+ messagingSenderId: "254977934750",
+ appId: "1:254977934750:web:9f1ad0357425e5718d828f"
+};
+firebase.initializeApp(firebaseConfig);
+const messaging = firebase.messaging();
+messaging.usePublicVapidKey(publicVapidKey);
+
+const tokenDivId = "token_div";
+const permissionDivId = "permission_div";
+
+messaging.onTokenRefresh(() => {
+ messaging
+ .getToken()
+ .then(refreshedToken => {
+ console.log("Token refreshed.");
+ setTokenSentToServer(false);
+ sendTokenToServer(refreshedToken);
+ // Display new Instance ID token and clear UI of all previous messages.
+ resetUI();
+ })
+ .catch(err => {
+ console.log("Unable to retrieve refreshed token ", err);
+ showToken("Unable to retrieve refreshed token ", err);
+ });
+});
+
+messaging.onMessage(payload => {
+ console.log("Message received. ", payload);
+ // Update the UI to include the received message.
+ appendMessage(payload);
+});
+
+function resetUI() {
+ clearMessages();
+ showToken("loading...");
+ messaging
+ .getToken()
+ .then(currentToken => {
+ if (currentToken) {
+ sendTokenToServer(currentToken);
+ updateUIForPushEnabled(currentToken);
+ } else {
+ // Show permission request.
+ console.log(
+ "No Instance ID token available. Request permission to generate one."
+ );
+ // Show permission UI.
+ updateUIForPushPermissionRequired();
+ setTokenSentToServer(false);
+ }
+ })
+ .catch(err => {
+ console.log("An error occurred while retrieving token. ", err);
+ showToken("Error retrieving Instance ID token. ", err);
+ setTokenSentToServer(false);
+ });
+}
+
+// [TODO] - write code here to show on UI, this is not exactly notification handled
+function showToken(currentToken) {
+ // Show token in console and UI.
+ const tokenElement = document.querySelector("#token");
+ !!tokenElement && (tokenElement.textContent = currentToken);
+}
+
+function sendTokenToServer(currentToken) {
+ if (!isTokenSentToServer()) {
+ console.log("Sending token to server...");
+ // TODO(developer): Send the current token to your server.
+ setTokenSentToServer(true);
+ } else {
+ console.log(
+ "Token already sent to server so won't send it again " +
+ "unless it changes"
+ );
+ }
+}
+function isTokenSentToServer() {
+ return window.localStorage.getItem("sentToServer") === "1";
+}
+
+function setTokenSentToServer(sent) {
+ window.localStorage.setItem("sentToServer", sent ? "1" : "0");
+}
+
+function showHideDiv(divId, show) {
+ const div = document.querySelector("#" + divId);
+ if (!!div) {
+ if (show) {
+ div.style = "display: visible";
+ } else {
+ div.style = "display: none";
+ }
+ }
+}
+
+function requestPermission() {
+ console.log("Requesting permission...");
+ Notification.requestPermission().then(permission => {
+ if (permission === "granted") {
+ console.log("Notification permission granted.");
+ resetUI();
+ } else {
+ console.log("Unable to get permission to notify.");
+ }
+ });
+}
+
+function deleteToken() {
+ // Delete Instance ID token.
+ messaging
+ .getToken()
+ .then(currentToken => {
+ messaging
+ .deleteToken(currentToken)
+ .then(() => {
+ console.log("Token deleted.");
+ setTokenSentToServer(false);
+ // Once token is deleted update UI.
+ resetUI();
+ })
+ .catch(err => {
+ console.log("Unable to delete token. ", err);
+ });
+ })
+ .catch(err => {
+ console.log("Error retrieving Instance ID token. ", err);
+ showToken("Error retrieving Instance ID token. ", err);
+ });
+}
+
+// [TODO] - Write code to show custom UI Notification for website
+function appendMessage(payload) {
+ // const messagesElement = document.querySelector("#messages");
+ // const dataHeaderELement = document.createElement("h5");
+ // const dataElement = document.createElement("pre");
+ // dataElement.style = "overflow-x:hidden;";
+ // dataHeaderELement.textContent = "Received message:";
+ // dataElement.textContent = JSON.stringify(payload, null, 2);
+ // messagesElement.appendChild(dataHeaderELement);
+ // messagesElement.appendChild(dataElement);
+}
+
+function clearMessages() {
+ const messagesElement = document.querySelector("#messages");
+ if (!!messagesElement) {
+ while (messagesElement.hasChildNodes()) {
+ messagesElement.removeChild(messagesElement.lastChild);
+ }
+ }
+}
+
+function updateUIForPushEnabled(currentToken) {
+ showHideDiv(tokenDivId, true);
+ showHideDiv(permissionDivId, false);
+ showToken(currentToken);
+}
+
+function updateUIForPushPermissionRequired() {
+ showHideDiv(tokenDivId, false);
+ showHideDiv(permissionDivId, true);
+ requestPermission();
+}
+
+resetUI();
diff --git a/firebase-messaging-sw.js b/firebase-messaging-sw.js
new file mode 100644
index 0000000..b4b0621
--- /dev/null
+++ b/firebase-messaging-sw.js
@@ -0,0 +1,31 @@
+importScripts("https://www.gstatic.com/firebasejs/7.5.0/firebase-app.js");
+importScripts("https://www.gstatic.com/firebasejs/7.5.0/firebase-messaging.js");
+
+const firebaseConfig = {
+ apiKey: "AIzaSyCZ8gbWs9FLlzw93BOj_OQzlWwd_F1N-IY",
+ authDomain: "pyconhyd.firebaseapp.com",
+ databaseURL: "https://pyconhyd.firebaseio.com",
+ projectId: "pyconhyd",
+ storageBucket: "pyconhyd.appspot.com",
+ messagingSenderId: "254977934750",
+ appId: "1:254977934750:web:9f1ad0357425e5718d828f"
+};
+firebase.initializeApp(firebaseConfig);
+const messaging = firebase.messaging();
+messaging.setBackgroundMessageHandler(function(payload) {
+ console.log(
+ "[firebase-messaging-sw.js] Received background message ",
+ payload
+ );
+ // Customize notification here
+ const notificationTitle = payload.notification.title;
+ const notificationOptions = {
+ body: payload.notification.body,
+ icon: payload.notification.image || "/favion.ico"
+ };
+
+ return self.registration.showNotification(
+ notificationTitle,
+ notificationOptions
+ );
+});