c# - BaasBox 从 C# 上传图像

Question

我正在尝试将图片上传到 C#/Xamarin 中的 BaasBox。到目前为止，我只收到错误请求错误：

WebRequest request = WebRequest.Create("http://localhost:9000/file");
            request.ContentType = "Content-type: image/jpg";
            request.Method = "POST";
            string authInfo = "user:password";
            request.Headers["Authorization"] = "Basic " + authInfo;

            byte[] buffer = new byte[16 * 1024];
            using (MemoryStream ms = new MemoryStream())
            {
                int read;
                while ((read = pictureFileStream.Read(buffer, 0, buffer.Length)) > 0)
                {
                    ms.Write(buffer, 0, read);
                }
                var bytearray = ms.ToArray();

                Stream reqstr = await request.GetRequestStreamAsync();
                reqstr.Write(bytearray, 0, buffer.Length);

                WebResponse response = await request.GetResponseAsync();
                Debug.WriteLine("Response: " + response);
            }

文档只说它是使用参数文件通过帖子上传的？！