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FilterStore.setCacheEntry() method

Stores a filter result in the cache with automatic LRU eviction.

Adds or updates a cache entry with the current timestamp. When the cache reaches its maximum size (50 entries), the oldest entry is automatically removed using LRU (Least Recently Used) eviction strategy.

Signature:

setCacheEntry(key: string, value: Omit<CacheEntry, "timestamp">): void;

Parameters

Returns:

void

Remarks

The LRU eviction iterates through all cache entries to find the oldest one. For very large caches, consider overriding this method with a more efficient data structure like a linked list or using a library implementation.

Example 1

Basic usage:

filterStore.setCacheEntry('filter-v1-cat:shoes', {
  data: { products: [...], total: 42 },
  params: { category: 'shoes' }
});

Example 2

Extend to customize cache size per shop:

window.boostWidgetIntegration.extend('FilterStore', (FilterStore) => {
  return class CustomFilterStore extends FilterStore {
    setCacheEntry(key, value) {
      const timestamp = new Date().getTime();
      this.cache.value.set(key, { ...value, timestamp });

      // Use larger cache for premium shops
      const maxCacheSize = this.getMaxCacheSize();
      if (this.cache.value.size >= maxCacheSize) {
        // Custom eviction logic
      }
    }

    getMaxCacheSize() {
      return window.shopTier === 'premium' ? 100 : 50;
    }
  };
});