我可以知道是否有任何用于 .NET C# 的foursquare sdk。我正在根据开发人员参考进行操作，但在请求令牌期间未能执行此操作，我不断收到错误消息。我正在使用 VS 2008 和正在开发的服务器。由于 url 重写，我在此错误之前搜索，但我没有托管在 IIS 中，我也检查了 web.config，也没有运气。请帮忙，谢谢。
这是我的错误：
不允许使用用于访问路径“/login”的 HTTP 动词 POST。
这是我的实现：
HttpWebRequest request = null;
HttpWebResponse response = null;
StreamReader responseStream = null;
ASCIIEncoding ascii = null;
string key = ConfigurationManager.AppSettings["key"];
string secret = ConfigurationManager.AppSettings["secret"];
string callback = ConfigurationManager.AppSettings["callback"];
string obtainTokenUrl = ConfigurationManager.AppSettings["obtainTokenUrl"];
try
{
string postData = "client_id=" + key + "&response_type=code&redirect_uri=" + callback;
ascii = new ASCIIEncoding();
byte[] postBytes = ascii.GetBytes(postData);
try
{
request = WebRequest.Create(obtainTokenUrl) as HttpWebRequest;
}
catch (UriFormatException)
{
request = null;
}
if (request == null)
{
throw new ApplicationException("Invalid URL: " + obtainTokenUrl);
}
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.ContentLength = postBytes.Length;
//add post data to request
Stream postStream = request.GetRequestStream();
postStream.Write(postBytes, 0, postBytes.Length);
postStream.Close();
response = (HttpWebResponse)request.GetResponse();
Encoding encode = Encoding.GetEncoding("utf-8");
responseStream = new StreamReader(response.GetResponseStream(), encode);
Response.Write(responseStream.ReadToEnd());