我找不到新的亚马逊服务的实例(或至少在过去几年内)。无论我在标题中添加什么,最接近的工作示例都会返回一个null项。代码是:
// Amazon ProductAdvertisingAPI client
AWSECommerceServicePortTypeClient amazonClient = new AWSECommerceServicePortTypeClient();
// prepare an ItemSearch request
ItemSearchRequest request = new ItemSearchRequest();
request.SearchIndex = "Books";
request.Title = "C#";
request.Condition = Condition.All;
//request.ResponseGroup = new string[] { "Small" };
ItemSearch itemSearch = new ItemSearch();
itemSearch.Request = new ItemSearchRequest[] { request };
itemSearch.AWSAccessKeyId = ConfigurationManager.AppSettings["accessKeyId"];
// send the ItemSearch request
ItemSearchResponse response = amazonClient.ItemSearch(itemSearch);
// write out the results from the ItemSearch request
foreach (var itemLst in response.Items)
{
if (itemLst.Item != null)
{
foreach (var item in response.Items[0].Item)
{
Console.WriteLine(item.ItemAttributes.Title);
}
}
else
Console.WriteLine("No item info was found for this response list item.");
}
Console.WriteLine("<Done...press enter to continue>");
Console.ReadLine();
我做错了什么?
答案 0 :(得分:3)
我假设你已经下载了code from here。如果这是正确的,那么你需要替换这一行:
AWSECommerceServicePortTypeClient amazonClient = new AWSECommerceServicePortTypeClient();
使用这些行:
BasicHttpBinding binding = new BasicHttpBinding(BasicHttpSecurityMode.Transport);
binding.MaxReceivedMessageSize = int.MaxValue;
AWSECommerceServicePortTypeClient amazonClient = new AWSECommerceServicePortTypeClient(
binding,
new EndpointAddress("https://webservices.amazon.com/onca/soap?Service=AWSECommerceService"));
// add authentication to the ECS client
amazonClient.ChannelFactory.Endpoint.Behaviors.Add(new AmazonSigningEndpointBehavior(accessKeyId, secretKey));
问题有两个:
amazonClient
绑定到HttpBinding 如果我的假设不正确,那么应从上面的链接下载代码,因为它是如何调用Amazon Product API的工作示例。
答案 1 :(得分:2)
我相信您的问题可能是缺少关联标签。截至2011年11月,这是所有请求所必需的,我在测试的早期就注意到,当我没有包含它时,我得到了空响应(带有错误代码)。我不确定这是否仍然是行为,但我肯定会假设,如果你没有添加它(我在你的代码中没有看到),那可能是个嫌疑人。
如果您没有助理ID,则需要申请一个。