WebApp.Services.AddressService.CachedHousingTypeList C# (CSharp) Метод

        public List<TypesHousing> CachedHousingTypeList(int? cityId = null)
        {
            List<TypesHousing> list;
            if (!Cache.TryGetValue(CacheKeys.HousingType, out list))
            {
                IQueryable<TypesHousing> query = DbContext.TypesHousing;
                
                list = query.OrderBy(x => x.Name).ToList();

                Cache.Set(CacheKeys.HousingType, list, new MemoryCacheEntryOptions().SetAbsoluteExpiration(TimeSpan.FromMinutes(5)));
                _logger.LogInformation($"{CacheKeys.HousingType} updated from source.");
            }

            return list;
        }
    }