Adding HashNormalizer that converts Ruby style Hash keys such as snake_case and symbols type to Recombee's Camel style of String type.

Author: marzhaev

lib/recombee_api_client/api/add_bookmark.rb

@@ -26,6 +26,7 @@ class AddBookmark < ApiRequest
     def initialize(user_id, item_id, optional = {})
       @user_id = user_id
       @item_id = item_id
+      optional = normalize_optional(optional)
       @timestamp = optional['timestamp']
       @cascade_create = optional['cascadeCreate']
       @optional = optional

lib/recombee_api_client/api/add_cart_addition.rb

@@ -28,6 +28,7 @@ class AddCartAddition < ApiRequest
     def initialize(user_id, item_id, optional = {})
       @user_id = user_id
       @item_id = item_id
+      optional = normalize_optional(optional)
       @timestamp = optional['timestamp']
       @cascade_create = optional['cascadeCreate']
       @amount = optional['amount']

lib/recombee_api_client/api/add_detail_view.rb

@@ -27,6 +27,7 @@ class AddDetailView < ApiRequest
     def initialize(user_id, item_id, optional = {})
       @user_id = user_id
       @item_id = item_id
+      optional = normalize_optional(optional)
       @timestamp = optional['timestamp']
       @duration = optional['duration']
       @cascade_create = optional['cascadeCreate']

lib/recombee_api_client/api/add_purchase.rb

@@ -29,6 +29,7 @@ class AddPurchase < ApiRequest
     def initialize(user_id, item_id, optional = {})
       @user_id = user_id
       @item_id = item_id
+      optional = normalize_optional(optional)
       @timestamp = optional['timestamp']
       @cascade_create = optional['cascadeCreate']
       @amount = optional['amount']

lib/recombee_api_client/api/add_rating.rb

@@ -28,6 +28,7 @@ def initialize(user_id, item_id, rating, optional = {})
       @user_id = user_id
       @item_id = item_id
       @rating = rating
+      optional = normalize_optional(optional)
       @timestamp = optional['timestamp']
       @cascade_create = optional['cascadeCreate']
       @optional = optional

lib/recombee_api_client/api/batch.rb

@@ -16,6 +16,7 @@ class Batch < ApiRequest
     #
     def initialize(requests, optional = {})
       @requests = requests
+      optional = normalize_optional(optional)
       @optional = optional
       @body_parameters = requests_to_batch_hash
       @timeout = requests.map{|r| r.timeout}.reduce(:+)

lib/recombee_api_client/api/delete_view_portion.rb

@@ -27,6 +27,7 @@ class DeleteViewPortion < ApiRequest
     def initialize(user_id, item_id, optional = {})
       @user_id = user_id
       @item_id = item_id
+      optional = normalize_optional(optional)
       @session_id = optional['sessionId']
       @optional = optional
       @timeout = 1000

lib/recombee_api_client/api/hash_normalizer.rb

@@ -0,0 +1,21 @@
+module RecombeeApiClient
+  ##
+  # Module to convert Ruby conventions to Recombee's API namings
+  #
+  module HashNormalizer
+    def normalize_optional opts
+      opts_new = {}
+      opts.each do |k,v|
+        case k
+        when String then opts_new[camelize(k)] = opts.delete(k)
+        when Symbol then opts_new[camelize(k.to_s)] = opts.delete(k)
+        end
+      end
+      opts_new
+    end
+
+    def camelize str
+      str.gsub(/_(.)/) {|e| $1.upcase}
+    end
+  end
+end

lib/recombee_api_client/api/insert_to_group.rb

@@ -27,6 +27,7 @@ def initialize(group_id, item_type, item_id, optional = {})
       @group_id = group_id
       @item_type = item_type
       @item_id = item_id
+      optional = normalize_optional(optional)
       @cascade_create = optional['cascadeCreate']
       @optional = optional
       @timeout = 1000

lib/recombee_api_client/api/insert_to_series.rb

@@ -29,6 +29,7 @@ def initialize(series_id, item_type, item_id, time, optional = {})
       @item_type = item_type
       @item_id = item_id
       @time = time
+      optional = normalize_optional(optional)
       @cascade_create = optional['cascadeCreate']
       @optional = optional
       @timeout = 1000