Hands-On Microservices with Spring Boot and Spring Cloud

Changes in the integration layer

In the ProductCompositeIntegration integration class, we have replaced the RestTemplate blocking HTTP client with the WebClient non-blocking HTTP client that comes with Spring 5.

A builder for the WebClient is auto-injected in to the constructor. If customization is required, for example, in setting up common headers or filters, it can be done in the constructor. For the available configuration options, see https://docs.spring.io/spring/docs/current/spring-framework-reference/web-reactive.html#webflux-client-builder. Please have a look at the following steps:

1. Here, we simply build the WebClient instance that we will use in our integration class, without any configuration:

public class ProductCompositeIntegration ...