Facade Design Pattern Explained with Python Example | Low Level Design - Lesson 28
Login, fetch profile, get orders... your frontend is calling 3 different services for one page load. What if there was ONE simple entry point that handled everything? That's the Facade Design Pattern!
In this video, I explain the Facade Pattern using an API Gateway example. Instead of the client directly talking to UserService, OrderService, and other microservices, a single ApiGateway class provides simple methods that internally coordinate all the complex calls.
🔥 What you'll learn:
✅ What is Facade Design Pattern
✅ When and why to use it
✅ API Gateway example with UserService and OrderService
✅ How Facade hides complexity behind a simple interface
✅ Why Facade is everywhere in real-world backend systems
✅ How Facade Pattern is asked in LLD interviews
📚 This is part of my FREE Low Level Design (LLD) Course in Python. Subscribe for the full Design Patterns series!
👉 LLD Playlist: • Low Level System Design in Python
👉 Enroll in this Course: https://codeanddebug.in/course/low-le...
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