What Does API Gateway Do?
An API Gateway is a microservices architecture's central entry point for all client requests. Its primary role is managing and routing traffic between the client and back-end services, ensuring security, scalability, and efficiency.
Key functions include:
- Request Routing: Directs client requests to the appropriate back-end services.
- Security: Handles authentication, authorization, and rate limiting.
- Load Balancing: Distributes traffic evenly across services to optimize performance.
- Caching: Reduces the load on back-end services by storing frequent responses.
An API gateway enhances applications' performance and manageability by simplifying and securing communication between clients and services.