Amazon API ItemSearch返回(400)错误的请求 [英] Amazon API ItemSearch returns (400) Bad Request

问题描述

我正在使用Amazon文档中的一个简单示例进行ItemSearch，但出现一个奇怪的错误: 远程服务器返回了意外的响应:(400)错误的请求."

I'm using a simple example from Amazon documentation for ItemSearch and I get a strange error: "The remote server returned an unexpected response: (400) Bad Request."

这是代码:

public static void Main()
        {
            //Remember to create an instance of the amazon service, including you Access ID. 

            AWSECommerceServicePortTypeClient service = new AWSECommerceServicePortTypeClient(new BasicHttpBinding(),
                                                                                              new EndpointAddress(
                                                                                                "http://webservices.amazon.com/onca/soap?Service=AWSECommerceService"));


            AWSECommerceServicePortTypeClient client = new AWSECommerceServicePortTypeClient(
             new BasicHttpBinding(),
             new EndpointAddress("http://webservices.amazon.com/onca/soap?Service=AWSECommerceService"));

            // prepare an ItemSearch request  
            ItemSearchRequest request = new ItemSearchRequest();
            request.SearchIndex = "Books";
            request.Title = "Harry+Potter";
            request.ResponseGroup = new string[] { "Small" };
            ItemSearch itemSearch = new ItemSearch();
            itemSearch.Request = new ItemSearchRequest[] { request };
            itemSearch.AWSAccessKeyId = accessKeyId;

            // issue the ItemSearch request
            try
            {
                ItemSearchResponse response = client.ItemSearch(itemSearch);
                // write out the results  

                foreach (var item in response.Items[0].Item)
                {
                    Console.WriteLine(item.ItemAttributes.Title);
                }
            }
            catch(Exception e)
            {
                Console.ForegroundColor = ConsoleColor.Red;
                Console.WriteLine(e.Message);
                Console.ForegroundColor = ConsoleColor.White;
                Console.WriteLine("Press any key to quit...");
                Clipboard.SetText(e.Message);
            }
            Console.ReadKey();

怎么了?

推荐答案

您收到此消息是因为您的请求未签名.从2009年8月开始，必须签署所有请求.

You receive this message because your request is not signed. Starting from August 2009 all requests must be signed.

在这里您可以看到有关如何签署亚马逊请求的示例: http://developer.amazonwebservices.com/connect/entry. jspa?externalID = 2480& categoryID = 14

Here you can see at the example about how to sign amazon requests: http://developer.amazonwebservices.com/connect/entry.jspa?externalID=2480&categoryID=14

这篇关于Amazon API ItemSearch返回(400)错误的请求的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！