REST APIs Explained | Real-World System Design Example

Описание: REST APIs are the foundation of backend systems and system design interviews.
Before you design applications like a food delivery app or an e-commerce platform, you must understand how services communicate using REST APIs.

In this video, you will understand REST APIs from scratch for beginners, using a real-world food delivery app example. You’ll learn how a mobile app talks to backend microservices using HTTP methods, URLs, request bodies, and response bodies, and how REST APIs are designed in real systems.

What you’ll learn in this video:
• What REST APIs are (beginner-friendly explanation)
• How microservices communicate using REST APIs
• REST API design using a food delivery app example
• REST API request vs response structure
• HTTP methods (GET, POST, PUT, PATCH, DELETE)
• HTTP headers
• Difference between GET order details vs GET all orders
• Query and path param in REST APIs
• Why REST APIs are stateless and scalable
• REST APIs for system design interviews

This video is part of a System Design Fundamentals series, where I first explain core concepts clearly, and then apply them to real system design problems.


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