public async Task <IHttpActionResult> ExpelMember(int projectId, string userId)
        {
            try
            {
                await _projectsService.ExpelMember(GetUserAndOrganization(), projectId, userId);

                return(Ok());
            }
            catch (ValidationException e)
            {
                return(BadRequestWithError(e));
            }
            catch (UnauthorizedException)
            {
                return(Forbidden());
            }
        }