Merge pull request #7 from hisea/master

Add ItemLookup API and ability to configure marketplace host.

README.md

@@ -5,9 +5,10 @@ Amazon Product Advertising Client
 # Configure
 Add your AWS authentication credentials to `config/config.exs`:
 
-```
+```elixir
 config :amazon_product_advertising_client,
   associate_tag: "YourAssociateTag",
   aws_access_key_id: "YourAccessKeyID",
-  aws_secret_access_key: "YourSecretAccessKey"
+  aws_secret_access_key: "YourSecretAccessKey",
+  marketplace_host: "webservices.amazon.ca" # If not specified the default value is webservices.amazon.com
 ```

lib/amazon_product_advertising_client.ex

@@ -7,7 +7,7 @@ defmodule AmazonProductAdvertisingClient do
   alias AmazonProductAdvertisingClient.Config
 
   @scheme "http"
-  @host   "webservices.amazon.com"
+  @host    Application.get_env(:amazon_product_advertising_client, :marketplace_host, "webservices.amazon.com")
   @path   "/onca/xml"
 
   def call_api(request_params, config \\ %Config{}) do

lib/amazon_product_advertising_client/item_lookup.ex

@@ -0,0 +1,22 @@
+defmodule AmazonProductAdvertisingClient.ItemLookup do
+  @moduledoc false
+
+  alias __MODULE__
+  alias AmazonProductAdvertisingClient.Config
+  defstruct "Condition": "New",
+    "IncludeReviewsSummary": nil,
+    "MerchantId": nil,
+    "ItemId": nil,
+    "Operation": "ItemLookup",
+    "RelatedItemPage": nil,
+    "RelationshipType": nil,
+    "SearchIndex": nil,
+    "TruncateReviewsAt": nil,
+    "VariationPage": nil,
+    "ResponseGroup": "ItemAttributes,Images",
+    "IdType": "ASIN"
+
+  def execute(search_params \\ %ItemLookup{}, config \\ %Config{}) do
+    AmazonProductAdvertisingClient.call_api search_params, config
+  end
+end

mix.exs

@@ -6,8 +6,8 @@ defmodule AmazonProductAdvertisingClient.Mixfile do
      version: "0.1.3",
      elixir: "~> 1.3",
      description: "An Amazon Product Advertising API client for Elixir",
-     package: package,
-     deps: deps]
+     package: package(),
+     deps: deps()]
   end
 
   def application do