Redis, Caching, Cache Invalidation, Distributed Cache, Cache Coherence.
cache, fetch the price from the database Product product = productRepository.findById(productId).orElse(null); if (product != null) { // Cache the product price with a short expiration (e.g., 1 minute) redisTemplate.opsForValue().set(cacheKey, product.getPrice().toString(), Duration.ofMinutes(1));