API Gateway with Microservices Example
Let’s consider a hypothetical e-commerce system with microservices. The system has services for user management, product catalog, shopping cart, and order processing. Clients interact with the system through a web application.
Explanation of the below diagram
- The web application communicates with the API Gateway.
- The API Gateway routes requests to the appropriate microservices (e.g., user-related requests to the Users service).
- It handles authentication, rate limiting, caching, and other functions.
- Error responses are also standardized by the API Gateway.
What is API Gateway | System Design ?
An API Gateway is a key component in system design, particularly in microservices architectures and modern web applications. It serves as a centralized entry point for managing and routing requests from clients to the appropriate microservices or backend services within a system.
Important Topics for API Gateway in System Design
- What is an API Gateway?
- How does API Gateway work?
- How differently API Gateway work with Microservices and Monolith architecture?
- Best Practices for API Gateway
- Benefits of using an API Gateway:
- Challenges of using an API Gateway
- Popular API Gateway Solutions