Introduction to Amazon API Gateway

Amazon API Gateway helps you design application solutions that favor the microservices architecture in place of monolith designs. Your backend developers can build a series of microservices that work with each other. For example, in an e-commerce application, you can have several microservices, such as cart-service, catalog-service, user-profile and user-session services, inventory-management-service, and more.

Without an API gateway, your frontend developer (who builds the frontend user interface) would need to be made aware of all the backend APIs and build the application to call several microservices, to provide complete functionality. Imagine, then, your backend developer later needs to refactor one of the microservices, such as splitting one microservice into two separate microservices, each with its own API. This would result in having to recode some components of the frontend user interface too.

With an API gateway, you essentially...