public async Task DownloadFileAsync(string url, string filename)
{
HttpResult hr = await Util.HttpGet(url, false);
if (!hr.IsSuccess)
throw new AmlRestApiException(hr);
if (File.Exists(filename))
throw new Exception(filename + " alread exists.");
FileStream fs = File.Create(filename);
hr.PayloadStream.Seek(0, SeekOrigin.Begin);
hr.PayloadStream.CopyTo(fs);
fs.Close();
}
public async Task<string> UploadResourceAsnyc(WorkspaceSetting setting, string fileFormat, string fileName)