public ActionResult <List <ProductDTO> > FindPromotion(int items)
{
//Get in cache
var re = _cache.Get <List <ProductDTO> >(CacheKey.DISCOUNT_PRODUCT);
if (re == null || re?.Count == 0)
{
//Get in db
var products = GetListProducts();
if (products == null)
{
return(Problem(statusCode: 500, detail: "Data not exist"));
}
re = _productModel.FindPromotion(products);
if (re == null)
{
return(Problem(statusCode: 500, detail: "Data not exist"));
}
_cache.Set(re, CacheKey.DISCOUNT_PRODUCT);
}
return(items <= 0 ? re : re.Take(items).ToList());
}
