public async Task <ActionResult> FetchAgents(string category, string city)
        {
            try {
                var agents = ConvertSourceResultsToAgents
                             (
                    await FetchResults($"/?type={category}&zo=/"),
                    ListingType.All
                             );

                _context.AddRange(agents);
                _context.SaveChanges();
            }
            catch (Exception e)
            {
                return(ExceptionResult(e));
            }

            return(Ok());
        }