Simple ratpack http server

ratpack.groovy

@Grab(group='io.ratpack', module='ratpack-groovy', version='1.6.0')
import static ratpack.groovy.Groovy.ratpack
import ratpack.handling.Handler;
import ratpack.handling.Context;
import ratpack.form.Form;
import ratpack.form.UploadedFile;

ratpack {

    handlers {
        post("txt") {
          parse(Form.class).then({ 
            response.status 200
            response.send("HELLO")
          })
        }
        get("health") { render("ok") }
    }
}