What is the function of an API Gateway in cloud services?

The function of an API Gateway in cloud services is primarily to handle incoming requests from clients and direct them to the appropriate backend services. It serves as an intermediary between clients and services, where it manages several critical tasks, including request routing, composition, and protocol translation. This ability to route requests allows a single entry point for multiple microservices, simplifying client interactions and enabling better organization of service endpoints.

Furthermore, an API Gateway often performs additional functions like load balancing, caching, and rate limiting, enhancing the overall performance and reliability of services. By consolidating these responsibilities, the API Gateway streamlines the communication process of distributed systems, making it easier to develop and manage complex applications in the cloud environment.