Compare Unordered JSON

unordered_json.rb

module Helpers
  module CompareJSON
    def self.returning(value)
      yield(value)
      value
    end

    def self.order_and_sort_json(object, deep = true)
      if object.is_a?(Hash)
        # recursively sort the hash
        res = returning(Hash.new) do |map|
          object.each do |k, v|
            map[k] = deep ? order_and_sort_json(v, deep) : v
          end
        end
        # res returns and array, sort by first element (key)
        # and transform back to hash if necessary
        res.class[res.sort { |a, b| a[0].to_s <=> b[0].to_s }]
      elsif deep && object.is_a?(Array)
        # sort the array
        sorted = object.sort_by { |h| h.is_a?(Hash) ? h["id"] : h }
        array = Array.new
        # recursively sort each array element and return a new array
        sorted.each_with_index do |v, i|
          array[i] = order_and_sort_json(v, deep)
        end
        array
      else
        object
      end
    end
  end
end