import static groovy.json.JsonOutput.toJson
import static groovy.json.JsonOutput.prettyPrint
def data = [data1: "data1", data2: "data2"]
def jsonString = prettyPrint(toJson(data: data).toString())
println jsonString
aW1wb3J0IHN0YXRpYyBncm9vdnkuanNvbi5Kc29uT3V0cHV0LnRvSnNvbgppbXBvcnQgc3RhdGljIGdyb292eS5qc29uLkpzb25PdXRwdXQucHJldHR5UHJpbnQKZGVmIGRhdGEgPSBbZGF0YTE6ICJkYXRhMSIsIGRhdGEyOiAiZGF0YTIiXQpkZWYganNvblN0cmluZyA9IHByZXR0eVByaW50KHRvSnNvbihkYXRhOiBkYXRhKS50b1N0cmluZygpKQpwcmludGxuIGpzb25TdHJpbmc=