Bits of .NET

WebSocket is overkill for one-way real-time updates. SSE is simpler and built-in.

Server (Node.js Example):

app.get('/events', (req, res) => {
    res.setHeader('Content-Type', 'text/event-stream');
    res.setHeader('Cache-Control', 'no-cache');
    res.setHeader('Connection', 'keep-alive');
    
    // Send update every 5 seconds
    const interval = setInterval(() => {
        res.write(`data: ${JSON.stringify({ time: Date.now() })}\n\n`);
    }, 5000);
    
    req.on('close', () => clearInterval(interval));
});

Client:

const eventSource = new EventSource('/events');

eventSource.onmessage = (event) => {
    const data = JSON.parse(event.data);
    console.log('Update:', data);
};

eventSource.onerror = () => {
    console.error('Connection lost');
    eventSource.close();
};

Perfect For: Stock prices, notifications, live scores, progress updates

Simpler than WebSocket for server-to-client updates!