如何在C#中使用Titanium获取请求负载？

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://example.com/api/endpoint");
request.Method = "POST";
request.ContentType = "application/json";

request.Headers.Add("Authorization", "Bearer your_token");

string payload = "{\"key\": \"value\"}";
byte[] data = Encoding.UTF8.GetBytes(payload);
request.ContentLength = data.Length;

using (Stream stream = request.GetRequestStream())
{
    stream.Write(data, 0, data.Length);
}

using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
    using (Stream stream = response.GetResponseStream())
    {
        StreamReader reader = new StreamReader(stream);
        string responseText = reader.ReadToEnd();
        // 处理响应数据
    }
}