Groovy comes with integrated support for converting between Groovy objects and JSON.
The classes dedicated to JSON serialisation and parsing are found in
the groovy.json package.
JsonSlurper is a class that parses JSON text or reader content into Groovy data
structures (objects) such as maps, lists and primitive types
like Integer , Double , Boolean and String .
The class comes with a bunch of overloaded parse methods plus some special methods
such as parseText , parseFile and others
