BootStrap.groovy

def castleBuilder = new Game(name: 'Castle Builder').save()
def amazingCircus = new Game(name: 'The Amazing Circus').save()
def pokerDrop = new Game(name: 'Poker Drop Riches').save()
def petsPayDay = new Game(name: "Pet's Pay Day").save()
def grandBlackjack = new Game(name: 'Grand Blackjack').save()

Game.groovy

@Resource(uri = '/games')
class Game {

    String name

    static constraints = {
    }
}