Hands-On Microservices with Kotlin

Creating handlers

In our router, we define how we need to act on the HTTP GET request, by creating a lambda that will output our response. That piece of code is usually referred to as a handler. Let's expand the lambda to understand it better:

package com.microservices.chapter4import org.springframework.context.annotation.Beanimport org.springframework.stereotype.Componentimport org.springframework.web.reactive.function.server.ServerRequestimport org.springframework.web.reactive.function.server.ServerResponse.okimport org.springframework.web.reactive.function.server.routerimport reactor.core.publisher.toMono@Componentclass CustomerRouter {  @Bean  fun customerRoutes() = router {    "/functional".nest {      "/customer".nest {        GET("/") { it: ServerRequest ...