public async Task <ActionResult <PrimaryItemResource> > Get(long id)
        {
            var cacheKey = $"{nameof(PrimaryItemResource)}_{id}";

            var resource = await _cache.GetAsync <PrimaryItemResource>(cacheKey);

            if (resource == null)
            {
                var item = await _service.GetById(id);

                if (item == null)
                {
                    return(NotFound());
                }

                resource = _mapper.Map <PrimaryItem, PrimaryItemResource>(item);

                await _cache.AddAsync(cacheKey, resource);
            }


            return(Ok(resource));
        }