ServiceStack.HttpUtils.UploadFile C# (CSharp) Method

        public static void UploadFile(this WebRequest webRequest, Stream fileStream, string fileName)
        {
            if (fileName == null)
                throw new ArgumentNullException("fileName");
            var mimeType = MimeTypes.GetMimeType(fileName);
            if (mimeType == null)
                throw new ArgumentException("Mime-type not found for file: " + fileName);

            UploadFile(webRequest, fileStream, fileName, mimeType);
        }
    }