Understanding API Gateway: A Beginner's Guide
What is an API Gateway? An API Gateway is like a traffic controller for web applications. It manages and routes requests between clients (users or applications) and backend services. It ensures that data flows efficiently, securely, and in a controlled manner. Real-World Analogy 🏢 Think of an API Gateway like a receptionist at a corporate office. When visitors arrive, the receptionist verifies their identity, directs them to the right department, and ensures they don’t access restricted areas. Similarly, an API Gateway manages, authenticates, and routes API requests to the correct backend service. Common Functions of an API Gateway 🛠️ An API Gateway provides several important functions to optimize and secure API calls: 1. Routing Requests 🔄 It determines which backend service should handle an incoming request. Example: A food delivery app routes user requests to different services (restaurants, payments, order tracking). 2. Authentication & Authorization 🔐 Ensu...