Kotlin + Vert.x simple web server

README.md

Kotlin + Vert.x simple web server

gradle jar
java -jar build/libs/foobar-1.0-SNAPSHOT.jar

Then hit port 8080

curl http://localhost:8080/health

App.kt

// src/App.kt

import io.vertx.core.Vertx
import io.vertx.ext.web.Router

fun main(args: Array<String>) {
    val vertx = Vertx.vertx()
    val router = Router.router(vertx)

    router.get("/health").handler { ctx -> ctx.response().end("OK") }

    vertx.createHttpServer().requestHandler(router).listen(8080)
}

build.gradle

plugins {
    id 'org.jetbrains.kotlin.jvm' version '1.3.72'
}

def vertx_version = "3.9.0"

group 'org.example'
version '1.0-SNAPSHOT'

repositories {
    mavenCentral()
}

dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8"
    compile "io.vertx:vertx-core:$vertx_version"
    compile "io.vertx:vertx-lang-kotlin:$vertx_version"
    compile "io.vertx:vertx-web:$vertx_version"
}

compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}
compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

sourceSets {
    main {
        kotlin {
            srcDirs = ['src']
        }
    }
}

jar {
    manifest {
        attributes 'Main-Class': 'AppKt'
    }
    from {
        configurations.compile.collect { it.isDirectory() ? it : zipTree(it) }
    }
}