private async Task LoadAndSaveRoomConfig(string recorderRoomConfigId, string jsonFileName) { var result = await HttpHandlers.ExportRoomCfg(recorderRoomConfigId, this); if (result == null) { return; } using (var textWriter = new StreamWriter(new FileStream(jsonFileName, FileMode.Create, FileAccess.ReadWrite), Encoding.Default)) { textWriter.Write(Encoding.UTF8.GetString(result)); } }