Query caching strategies
Skill ulpi-io/plugin-marketplace/plugins/aj-geddes/skills/query-caching-strategies
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Implement query caching strategies to improve performance. Use when setting up caching layers, configuring Redis, or optimizing database query response times.
SKILL.md
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Query Caching Strategies
Table of Contents
Overview
Implement multi-level caching strategies using Redis, Memcached, and database-level caching. Covers cache invalidation, TTL strategies, and cache warming patterns.
When to Use
- Query result caching
- High-read workload optimization
- Reducing database load
- Improving response time
- Cache layer selection
- Cache invalidation patterns
- Distributed cache setup
Quick Start
Minimal working example:
// Node.js example with Redis
const redis = require("redis");
const client = redis.createClient({
host: "localhost",
port: 6379,
db: 0,
});
// Get user with caching
async function getUser(userId) {
const cacheKey = `user:${userId}`;
// Check cache
const cached = await client.get(cacheKey);
if (cached) return JSON.parse(cached);
// Query database
const user = await db.query("SELECT * FROM users WHERE id = $1", [userId]);
// Cache result (TTL: 1 hour)
await client.setex(cacheKey, 3600, JSON.stringify(user));
return user;
}
// Cache warming on startup
// ... (see reference guides for full implementation)
Reference Guides
Detailed implementations in the references/ directory:
| Guide | Contents |
|---|---|
| Redis Caching with PostgreSQL | Redis Caching with PostgreSQL |
| Memcached Caching | Memcached Caching |
| PostgreSQL Query Cache | PostgreSQL Query Cache |
| MySQL Query Cache | MySQL Query Cache |
| Event-Based Invalidation | Event-Based Invalidation |
| Time-Based Invalidation | Time-Based Invalidation, LRU Cache Eviction |
Best Practices
✅ DO
- Follow established patterns and conventions
- Write clean, maintainable code
- Add appropriate documentation
- Test thoroughly before deploying
❌ DON'T
- Skip testing or validation
- Ignore error handling
- Hard-code configuration values