Setup Redis Caching

---
description: Implement Redis caching (Upstash or self-hosted)
---

1. **Option A: Upstash Redis (Serverless Recommended)**:
- Best for Vercel/Edge environments.
// turbo
- Run npm install @upstash/redis

import { Redis } from '@upstash/redis';
   
   const redis = new Redis({
     url: process.env.UPSTASH_REDIS_REST_URL!,
     token: process.env.UPSTASH_REDIS_REST_TOKEN!,
   });
   
   // Usage
   await redis.set('key', 'value', { ex: 300 });
   const value = await redis.get('key');

2. **Option B: Self-Hosted (ioredis)**:
- Best for long-running servers (VPS/Docker).
// turbo
- Run npm install ioredis

import Redis from 'ioredis';
   const redis = new Redis(process.env.REDIS_URL);

3. **Cache Pattern**:

export async function getCachedUser(id: string) {
     const cacheKey = user:${id};
     const cached = await redis.get(cacheKey);
     if (cached) return cached;
     
     const user = await db.user.findUnique({ where: { id } });
     await redis.set(cacheKey, JSON.stringify(user), { ex: 600 }); // 10 mins
     return user;
   }

4. **Pro Tips**:
- Use @upstash/redis for Edge Middleware compatibility.
- Always set a TTL (Time To Live) to prevent stale data.
- Use hset/hgetall for storing objects efficiently.