First stab at displaying a list of Accounts pulled from a Grails REST API in TornadoFX.

accounts.kt

class Account: JsonModel {
    var id by property<Long>()
    fun idProperty() = getProperty(Account::id)

    var name by property<String>()
    fun nameProperty() = getProperty(Account::name)

    var accountNumber by property<String>()
    fun accountNumberProperty() = getProperty(Account::accountNumber)

    override fun updateModel(json: JsonObject) {
        with(json) {
            id = long("id")
            name = string("name")
            accountNumber = string("accountNumber")
        }
    }
}

class HelloController : Controller() {

    val api: Rest by inject()

    init {
        api.baseURI = "http://localhost:8080/"
    }

    fun getAccounts()  = api.get("account").list().toModel<Account>()
}

class HelloWorld : View("Hello") {

    val helloController: HelloController by inject()

    private val accounts = helloController.getAccounts()

    override val root = form {
        fieldset(labelPosition = Orientation.VERTICAL) {
            tableview(accounts) {
                column("ID", Account::id)
                column("Name", Account::name)
                column("Account #", Account::accountNumber)
            }
        }
    }
}

class HelloApp : App(HelloWorld::class, Styles::class) {
    class Styles : Stylesheet()
}