Error “The remote server returned an error: (400) Bad Request”

Question

我正在尝试将我们的 windows 表单中的请求发送到快速预订 server.But 它告诉我 error.What 我可以做什么吗？如有任何帮助，我们将不胜感激。这是我尝试发出请求的代码：

 var oAuthConsumerKey = "";
 var oAuthConsumerSecret = "";
 var oAuthUrl ="https://quickbooks.api.intuit.com/v3/company/<companyid>/invoice?minorversion=4";

    // Do the Authenticate
 var authHeaderFormat = "Basic {0}";

 var authHeader = string.Format(authHeaderFormat,Convert.ToBase64String(Encoding.UTF8.GetBytes(Uri.EscapeDataString(oAuthConsumerKey) + ":"+Uri.EscapeDataString((oAuthConsumerSecret))) ));

    string text = System.IO.File.ReadAllText("text file");
    //  var postBody = "grant_type=client_credentials";

    HttpWebRequest authRequest = (HttpWebRequest)WebRequest.Create(oAuthUrl);
    authRequest.Headers.Add("Authorization", authHeader);
    authRequest.Method = "POST";
    authRequest.ContentType = "application/x-www-form-urlencoded";
    authRequest.UserAgent = "Mozilla/5.0 (compatible; MSIE 9.0; Windows NT 7.1; Trident/5.0)";
    authRequest.Accept = "/";
    authRequest.UseDefaultCredentials = true;
    authRequest.Proxy.Credentials = System.Net.CredentialCache.DefaultCredentials;
    authRequest.AutomaticDecompression = DecompressionMethods.GZip | DecompressionMethods.Deflate;

   using (Stream stream = authRequest.GetRequestStream())
    {
        byte[] content = ASCIIEncoding.ASCII.GetBytes(text);
        stream.Write(content, 0, content.Length);
    }

   authRequest.Headers.Add("Accept-Encoding", "gzip");

   WebResponse authResponse = authRequest.GetResponse();

Answer 1

您正在尝试使用 HTTP Basic 授权访问 Intuit 的服务：

var authHeaderFormat = "Basic {0}";

 var authHeader = string.Format(authHeaderFormat,Convert.ToBase64String(Encoding.UTF8.GetBytes(Uri.EscapeDataString(oAuthConsumerKey) + ":"+Uri.EscapeDataString((oAuthConsumerSecret))) ));

Intuit 不支持 HTTP Basic 身份验证。 Intuit 支持 OAuth。

https://developer.intuit.com/docs/0100_quickbooks_online/0100_essentials/000500_authentication_and_authorization/connect_from_within_your_app

你读过文档了吗？来自 Intuit 网站：

The QuickBooks API uses OAuth 1.0 to give apps access to data in a user's QuickBooks company.

您也可以在这里参考官方 OAuth 规范：

https://oauth.net/core/1.0a/

我建议您使用已经为您实现了所有这些功能的库。 Intuit 在他们的网站上链接了几个：

https://developer.intuit.com/docs/0100_quickbooks_online/0400_tools/0000_overview

Error “The remote server returned an error: (400) Bad Request”

Error “The remote server returned an error: (400) Bad Request”

c#

asp.net

windows

quickbooks

quickbooks-online