Add an item class to process search and get_items response

lib/paapi.rb

@@ -8,6 +8,7 @@ require 'paapi/response'
 module Paapi
   class Error < StandardError; end
   class NotImplemented < StandardError; end
+  SEARCH_PARAMS = %i[keywords actor, artist, author, brand title].freeze
   DEFAULT_PARTNER_TYPE = 'Associates'
   DEFAULT_MARKET = :us
   DEFAULT_RESOURCES = [

lib/paapi/item.rb

@@ -0,0 +1,49 @@
+module Paapi
+  class Item
+    attr_accessor :raw
+    def initialize(data)
+      @raw = data
+    end
+    
+    def asin
+      get(['ASIN'])
+    end
+    
+    def title
+      get(%w{ItemInfo Title DisplayValue})
+    end
+    
+    def release_date
+      get(%w{ItemInfo ReleaseDate})
+    end
+    
+    def eans
+      get(%w{ItemInfo ExternalIds EANs DisplayValues})
+    end
+    
+    def upcs
+      get(%w{ItemInfo ExternalIds UPCs DisplayValues})
+    end
+    
+    def features
+      get(%w{ItemInfo Features DisplayValues})&.join(' ')
+    end
+    
+    def part_number
+      get(%w{ItemInfo ManufactureInfo ItemPartNumber DisplayValue})
+    end
+
+    def format
+      get(%w{ItemInfo TechnicalInfo Formats DisplayValues})
+    end
+    
+    def kindle?
+      !format.nil? && format&.include?('Kindle eBook')
+    end
+    
+    def get(keys)
+      @raw.dig(*keys)
+    end
+
+  end
+end