Proxy Design Pattern Explained with Python Example | Low Level Design - Lesson 26
You open a photo gallery with 1000 images. Does it load ALL of them at once? No! It loads each image only when you actually click on it. That's Lazy Loading using the Proxy Design Pattern!
In this video, I explain the Proxy Pattern using a Photo Gallery example. Instead of loading heavy high-resolution images upfront (which takes seconds per image), the Proxy holds a lightweight placeholder and only loads the real image when you actually need to display it.
🔥 What you'll learn:
✅ What is Proxy Design Pattern
✅ When and why to use it
✅ Photo Gallery example with lazy loading
✅ How ImageProxy defers expensive object creation
✅ Why loading time drops from seconds to near zero
✅ Caching behaviour on repeated access
✅ How Proxy 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!
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