@Grab(group='org.codehaus.groovyfx', module='groovyfx', version='0.4.0')
import static groovyx.javafx.GroovyFX.start
@Grab(group='io.datafx', module='datasources', version='8.0.7')
@Grab(group='org.glassfish', module='javax.json', version='1.0.4')
import io.datafx.provider.ListDataProvider
import io.datafx.io.RestSource
import io.datafx.io.converter.JsonConverter
import groovy.transform.ToString


@ToString
class User {
    String firstname
    String lastname
}

def converter = new JsonConverter("users", User)
def source = new RestSource("http://localhost:5050/", converter)
def dataProvider = new ListDataProvider(source)

start {
    stage(title: 'DataFXRestSource1', width: 800, height: 500, visible: true) {
        scene {
            vbox(spacing: 10, padding: 10) {
                listView(prefHeight: 400, items: bind(dataProvider.data))
                button('Retrieve', onAction: {
                    dataProvider.retrieve()
                })                          
            }
        }
    }
}