docs/code-samples/serving/hello-world/helloworld-kotlin/build.gradle

plugins {
    id "org.jetbrains.kotlin.jvm" version "1.4.10"
}
apply plugin: 'application'

mainClassName = 'com.example.hello.MainKt'

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

repositories {
    mavenCentral()
}

dependencies {
    compile "io.ktor:ktor-server-netty:1.3.1"
}