public async Task <IActionResult> ShereTasksAsync(int userId, int userIdToShere,
                                                          List <TaskInfo> tasksToShere, CancellationToken cancellationToken)
        {
            try
            {
                if (!ModelState.IsValid)
                {
                    var errors = ModelState.StringifyModelErrors();
                    return(BadRequest(errors));
                }

                _logger.LogError($"ShereTasksAsync: shere tasks for user id {userId}  - into {userIdToShere}");
                var result = await _dataRepository.ShereTasks(userId, tasksToShere, userIdToShere);

                //send email to user with new tasks
                var user = await _dataRepository.GetUser(userId);

                var userTo = await _dataRepository.GetUser(userIdToShere);

                var tasks = await _dataRepository.GetUserTasks(userId);

                await _emailRepository.SendEmail(user.Email, userTo.Email, "New Tasks for you", FormatTasks(tasks));

                return(Ok(result));
            }
            catch (Exception ex)
            {
                _logger.LogError($"ShereTasksAsync: failed to shere tasks for user id {userId}  - {ex.Message}");
                return(NotFound($"failed to shere tasks for user id {userId}  - {ex.Message}"));
            }
        }