vertx-lang-scala with Gradle

This is a very simple example to show how to get goin’ with Vert.x (3.4.0.Beta1), Scala (2.12.1) and Gradle (3.4).
It contains two simple ScalaVerticle written in Scala and based on vertx-lang-scala:

1. com.example.Starter
2. com.example.HttpVerticle

The Starter will deploy the HttpVerticle.
And the HttpVerticle will obviously start a HTTP server running on 8080 by default.

Running it with Gradle

./gradlew run

It’s as simple as that. The responsible part in the build.gradle is also fairly simple:

mainClassName = "io.vertx.core.Launcher"
def mainVerticle = "scala:com.example.Starter"
run {
  args = ["run", mainVerticle]
}

Building a fat JAR

This example uses Gradle Shadow to build a fat JAR.

./gradlew jar

… or ./gradlew build which will also run the jar task.
The resulting fat JAR will be located at build/libs/vertx3-gradle-scala-fat.jar.