public async Task <ServiceResponse <IEnumerable <byte> > > ReadFromCharacteristic(string deviceUuid, string serviceUuid, string characteristicUuid) { var errMessage = ""; var response = new ServiceResponse <IEnumerable <byte> >(); try { response.Data = await _bluetoothManager.ReadFromCharacteristic(deviceUuid, serviceUuid, characteristicUuid); var successFlag = response.Data != null; response.Result = successFlag ? ServiceResponseResult.Success : ServiceResponseResult.Fail; if (successFlag) { return(response); } } catch (Exception e) { errMessage = "\n" + e.Message; } if (response.Result == ServiceResponseResult.NotSet) { response.Result = ServiceResponseResult.NotAcceptable; } response.Message = $"Failed to read from characteristic. device Id: \'{deviceUuid}\' gatt-service Id: \'{serviceUuid}\' characteristic id: \'{characteristicUuid}\'.{errMessage}"; return(response); }