public async Task <IActionResult> Post(Contact contact)
        {
            try
            {
                ContactWithId result       = _useCaseFactory.CreateContactUseCase().Execute(contact);
                var           resourcePath = new Uri($"{Request.GetDisplayUrl()}/{result.Id}");
                await _hub.SendUpdateAsync(MessageType.ContactCreate, result);

                return(Created(resourcePath, result));
            }
            catch (ContactAlreadyExistsException e)
            {
                return(StatusCode(StatusCodes.Status422UnprocessableEntity, e));
            }
            catch (Exception e)
            {
                return(StatusCode(StatusCodes.Status500InternalServerError, e));
            }
        }