@GrabResolver("https://oss.jfrog.org/artifactory/repo")
@Grab("io.ratpack:ratpack-groovy:0.9.9")
import static ratpack.groovy.Groovy.ratpack
import groovy.json.JsonBuilder

// You can change anything in the ratpack {} closure without needing to restart

ratpack {
    handlers {
        get {
            def data = [
                [firstname: 'Guillaume', lastname: 'Laforge'],
                [firstname: 'Cédric', lastname: 'Champeau'],
                [firstname: 'Bertrand', lastname: 'Goetzmann']
            ]

            def builder = new JsonBuilder([users: data])

            response.send 'application/json', builder.toString()
        }
    }
}