Basic JSON Slurper

slurpjson.groovy

import groovy.json.*
import groovy.text.*

def restResponse = new File("attributes.json") //later via Rest-Call .parse(URI)
def js = """${restResponse.text}"""
def data = new JsonSlurper().parseText(js) 

def totalCount = data.size

data.each {
    println it["Name"]
}