$:.push 'examples'; require 'helper' module Upcasing def self.call(keys) keys.map {|key| key.to_s.upcase} end end module Camelizing def self.call(keys) keys.map {|key| key.to_s.camelize} end end class Customer < RestModel convert_input_keys Upcasing property :login embeds_one :product end class Product < RestModel convert_input_keys Camelizing property :unit_price, type: Float end @root = Customer.parse({"LOGIN" => 'jackiechan2010', "PRODUCT" => {"UnitPrice" => 29.9}}).first inspect_rest_model(@root)