Connecting from Apps

Use an official client

Prefer maintained libraries over raw TCP. They handle connection pooling and reconnects.

Node.js sketch

The redis package is a common choice.

// npm install redis
import { createClient } from "redis";

const client = createClient({ url: process.env.REDIS_URL });
await client.connect();
await client.set("greeting", "hi", { EX: 60 });
console.log(await client.get("greeting"));

Python sketch

redis on PyPI is widely used.

# pip install redis
import os
import redis

r = redis.from_url(os.environ["REDIS_URL"])
r.set("greeting", "hi", ex=60)
print(r.get("greeting"))

URLs and security

Use REDIS_URL with password and TLS in hosted environments. Never expose Redis to the public internet without auth and network controls.