Chat App System Design | Scalable Architecture - Part 8

In this session, we dive deep into designing a scalable and efficient chat application architecture, similar to apps like WhatsApp, Slack, or Messenger. Learn how to handle millions of users, ensure real-time delivery, and structure backend components for performance and reliability.

📌 What You’ll Learn:

• Core components of a chat system (message broker, database design, WebSocket vs polling)
• Real-time communication strategies
• User authentication & presence management
• Scalability & load balancing
• Data consistency, caching, and eventual delivery
• Trade-offs in design decisions (CAP theorem, latency, fault-tolerance)

👉 Catch the full playlist: https://www.youtube.com/playlist?list=PLN-pd-oGWV70CN5k3SdOi0MPdUR9PESgD