lib/fassbinder/request.rb in fassbinder-0.0.8 vs lib/fassbinder/request.rb in fassbinder-0.0.9

@@ -1,17 +1,26 @@
+require 'sucker'
+require 'fassbinder/response'
+
 module Fassbinder
   class Request < Sucker::Request
     def initialize(args = {})
       super
       self.<<({
         'Operation'                       => 'ItemLookup',
         'ItemLookup.Shared.IdType'        => 'ASIN',
         'ItemLookup.Shared.Condition'     => 'All',
         'ItemLookup.Shared.MerchantId'    => 'All',
-        'ItemLookup.Shared.ResponseGroup' => ['OfferFull', 'SalesRank'] })
+        'ItemLookup.Shared.ResponseGroup' => ['OfferFull'] })
     end
 
     def batchify(asins)
+      asins = [asins].flatten
+
+      if asins.size > 20
+        raise ArgumentError, 'You cannot add more than 20 ASINs to a batch'
+      end
+
       self.<<({ 'ItemLookup.1.ItemId' => asins[0, 10] })
       self.<<({ 'ItemLookup.2.ItemId' => asins[10, 10] }) if asins.size > 10
     end
 
     def get