Building an API gateway using Spring Cloud's Netflix Zuul proxy

Spring Cloud provides the Zuul proxy to build an API gateway application. The following example demonstrates how to create an API gateway application using that proxy. So, let's create a Spring Boot project with the following code:

<dependencies>
            <dependency>
                        <groupId>org.springframework.cloud</groupId>
                        <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
            </dependency>
            <dependency>
                        <groupId>org.springframework.cloud</groupId>
                        <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
            </dependency>

            <dependency>
                        <groupId>org.springframework...