Modern applications thrive on instant updates — from live chats and notifications to collaborative tools and trading dashboards. Traditional HTTP requests can only go so far when users expect data to update in real time . In this article, we’ll explore how to build scalable real-time applications using WebSockets and why they’ve become a core technology for modern web systems. Why WebSockets? Unlike standard HTTP communication, WebSockets establish a persistent, bidirectional connection between the client and server. This allows data to flow instantly without repeatedly polling the server. With WebSockets, you can build: 💬 Real-time chat systems 📈 Live dashboards and analytics 🎮 Multiplayer games 🔔 Instant notification systems 💹 Trading and financial platforms Core Concepts Covered 1. Establishing WebSocket Connections Learn how clients and servers communicate through a persistent socket connection and how to initialize secure, reliable communication channels. 2.…