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Nuxt.js with Redis

This tutorial uses Redis as state store for a Nuxt.js application. We simply increment a counter that pulls the data from Redis.

See code and demo

1 Create Nuxt.js Project

Run this in terminal

yarn create nuxt-app nuxtjs-with-redis

2 Set up environment variables

Copy the .env.example file in this directory to .env

cp .env.local.example .env.local
  • REDIS_URL: Copy the url in the database page of the Upstash console
note

This example uses ioredis, you can copy the connection string from the Node tab in the console.

3 Server Middleware

We will write a Nuxt middleware which increments a counter in Redis and returns its new value.

api/count.js
import Redis from "ioredis"

export default async function (req, res) {
  const redis = new Redis(process.env.REDIS_URL)
  const count = await redis.incr("counter")
  redis.quit()

  res.setHeader("Content-Type", "application/json")
  res.write(JSON.stringify({ count }))
  res.end()
}

Now we will configure the middleware in nuxt.config.js

nuxt.config.js
export default {
  head: { title: "nuxt-with-redis" },
  buildModules: ["@nuxtjs/tailwindcss"],
  serverMiddleware: [{ path: "/api/count", handler: "~/api/count.js" }]
}

4 Run

yarn dev

Go to http://localhost:3000/

Notes:

  • For best performance the application should run in the same region with the Redis database's region.