API Gateway

An API Gateway is a server that acts as an entry point for client requests to backend services, handling tasks like routing, authentication, rate limiting, and request/response transformation. It centralizes API management, providing a unified interface for multiple microservices or APIs. This simplifies client interactions and enhances security, scalability, and monitoring.

Also known as: API Gateway, REST API Gateway, API Management Gateway, API Proxy, API Router

Why learn API Gateway?

Developers should use an API Gateway when building microservices architectures or managing multiple APIs, as it streamlines client access, enforces security policies, and reduces backend complexity. It's essential for scenarios requiring load balancing, caching, or real-time analytics, such as in cloud-native applications or IoT systems.

Learning Resources

• docs: AWS API Gateway Documentation
• tutorial: Kong API Gateway Tutorial
• video: API Gateway Explained on YouTube
• book: API Design Patterns Book