c# - 使用新的亚马逊服务搜索亚马逊示例

Question

我找不到新亚马逊服务的工作示例(或者至少在过去几年内)。无论我在标题中输入什么，最接近的工作示例都会返回一个空项目。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？

Answer 1

我假设您已经下载了 code from here .如果这是正确的，那么您需要替换这一行:

AWSECommerceServicePortTypeClient amazonClient = new AWSECommerceServicePortTypeClient();

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:

1. 您没有将 amazonClient 绑定(bind)到 HttpBinding
2. 您没有签署请求

如果我的假设不正确，那么您应该从上面的链接下载代码，因为它是如何调用亚马逊产品 API 的工作示例。