Getting started with an API gateway

An API Gateway integrates with a microservice architecture by acting as a central hub, managing communication between client applications and the distributed microservices. When we build our microservices, we want them independently developed, deployed, and scaled without affecting client applications. Clients only interact with the API gateway, which shields them from the complexities of the underlying microservice network.

Figure 11.1: A simple API Gateway

The API Gateway receives requests from clients and intelligently routes them to the appropriate microservice(s), based on the request content or URL. It can handle simple routing or complex scenarios, involving multiple microservices working together to fulfill a request. Let’s explore the importance of integrating an API Gateway into our microservice architecture:

• Simplified client interaction: Clients have a centralized entry point/single point of...