Power Up Your App with Server-Sent Push Notifications

Question

You will need a server-side implementation to send push notifications. Here’s an example using Node.js with the web-push library.

Install web-push

npm install web-push

Server Code Example

server.js

const webPush = require('web-push');

// Replace with your own VAPID keys
const vapidKeys = webPush.generateVAPIDKeys();

webPush.setVapidDetails(
  'mailto:*Emails are not allowed*',
  vapidKeys.publicKey,
  vapidKeys.privateKey
);

// Example subscription object (should be obtained from the client)
const subscription = {
  endpoint: 'USER_SUBSCRIPTION_ENDPOINT',
  keys: {
    auth: 'USER_AUTH_KEY',
    p256dh: 'USER_P256DH_KEY',
  },
};

// Send a push notification
const payload = JSON.stringify({
  title: 'Hello!',
  body: 'This is a push notification from Angular!',
});

webPush.sendNotification(subscription, payload)
  .then(response => console.log('Notification sent successfully:', response))
  .catch(error => console.error('Error sending notification:', error));

Running the Application

1. Serve your Angular application:

   ng serve --prod

1. Open your browser and navigate to your application.

2. Accept the notification permissions.

3. Trigger a push notification from your server.

Summary

• Setting up Angular service workers for push notifications.
• Requesting notification permissions in the Angular app.
• Sending push notifications from a Node.js server.

Make sure to replace YOUR_PUBLIC_VAPID_KEY with your actual VAPID key from your server-side implementation.

To see the frontend implementation, check out this post.
https://coderlegion.com/3273/leveraging-service-workers-to-enhance-web-app-performance-and-reliability

Comments

Thanks for the clear walkthrough—really helpful for getting started with push notifications! Have you tried handling notification click events or background sync with service workers too? Would love to hear how you approached that part.

---

Thank you for the article! It’s concise, informative, and straight to the point—no unnecessary fluff. Really enjoyed reading it!

---

Thanks @stjam for the feedback.

---

Thank you, straight-forward.