Caching

Overview

Caching improves application performance by storing frequently accessed data closer to the consumer. This skill covers cache strategies (aside, through, behind), invalidation patterns, TTL management, Redis/Memcached usage, stampede prevention, and distributed caching.

Instructions

1. Cache Strategies

Cache-Aside (Lazy Loading)

from typing import TypeVar, Optional, Callable
import json

T = TypeVar('T')