public async Task <Product[]> GetRecommendationsAsync(RecommendationEvalContext context)
{
var dynamicAssociationsContext = context as DynamicAssociationsEvalContext;
if (dynamicAssociationsContext == null)
{
throw new InvalidCastException(nameof(context));
}
var cacheKey = CacheKey.With(GetType(), nameof(GetRecommendationsAsync), context.GetCacheKey());
return(await _memoryCache.GetOrCreateExclusiveAsync(cacheKey, async (cacheEntry) =>
{
cacheEntry.AddExpirationToken(RecommendationsCacheRegion.CreateChangeToken());
cacheEntry.AddExpirationToken(_apiChangesWatcher.CreateChangeToken());
var result = new List <Product>();
var recommendedProductIds = await _associationsApi.EvaluateDynamicAssociationsAsync(dynamicAssociationsContext.ToContextDto());
if (recommendedProductIds != null)
{
result.AddRange(await _catalogService.GetProductsAsync(recommendedProductIds.ToArray(), ItemResponseGroup.Seo | ItemResponseGroup.Outlines | ItemResponseGroup.ItemWithPrices | ItemResponseGroup.ItemWithDiscounts | ItemResponseGroup.Inventory));
}
return result.ToArray();
}));
}
public async Task <Product[]> GetRecommendationsAsync(Model.Recommendations.RecommendationEvalContext context)
{
var cognitiveContext = context as CognitiveRecommendationEvalContext;
if (cognitiveContext == null)
{
throw new InvalidCastException(nameof(context));
}
var cacheKey = CacheKey.With(GetType(), "GetRecommendationsAsync", context.GetHashCode().ToString());
return(await _memoryCache.GetOrCreateExclusiveAsync(cacheKey, async (cacheEntry) =>
{
cacheEntry.AddExpirationToken(RecommendationsCacheRegion.CreateChangeToken());
var result = new List <Product>();
var recommendedProductIds = await _recommendationsApi.GetRecommendationsAsync(cognitiveContext.ToContextDto());
if (recommendedProductIds != null)
{
result.AddRange(await _catalogService.GetProductsAsync(recommendedProductIds.ToArray(), ItemResponseGroup.Seo | ItemResponseGroup.Outlines | ItemResponseGroup.ItemWithPrices | ItemResponseGroup.ItemWithDiscounts | ItemResponseGroup.Inventory));
}
return result.ToArray();
}));
}
