Real-Time Push Notifications

Real-time push notifications are messages sent from a server to a client (user's device) without the need for the client to request them. This allows for immediate updates, enhancing user engagement and experience.

2.1 What are Push Notifications?

Push notifications are messages that pop up on a user's device from an app. They can convey important updates, reminders, or promotional content.

2.2 Real-Time Communication

Real-time communication is the exchange of information instantly, allowing users to interact with applications and receive updates as they happen.

2.3 WebSockets

WebSockets provide a full-duplex communication channel over a single TCP connection. This technology is commonly used for real-time applications.

3.1 Setting up a WebSocket Server

const WebSocket = require('ws');
const server = new WebSocket.Server({ port: 8080 });

server.on('connection', socket => {
    socket.on('message', message => {
        console.log(`Received: ${message}`);
        // Broadcast to all clients
        server.clients.forEach(client => {
            if (client.readyState === WebSocket.OPEN) {
                client.send(message);
            }
        });
    });
});
        

3.2 Client-side Implementation

const socket = new WebSocket('ws://localhost:8080');

socket.onopen = () => {
    console.log('Connected to WebSocket server');
};

socket.onmessage = (event) => {
    const notification = JSON.parse(event.data);
    console.log('Notification:', notification);
    // Display notification to user
};
        

• Ensure user consent for push notifications.
• Personalize notifications to increase engagement.
• Limit the frequency of notifications to avoid user fatigue.
• Provide users with options to customize their notification preferences.
• Test the notification delivery on multiple devices and platforms.