Upstash Redis

To use this Adapter, you need to install @upstash/redis and @next-auth/upstash-redis-adapter package:

npm install @upstash/redis @next-auth/upstash-redis-adapter

Configure your Auth.js to use the Upstash Redis Adapter:

pages/api/auth/[...nextauth].js

import NextAuth from "next-auth"
import GoogleProvider from "next-auth/providers/google"
import { UpstashRedisAdapter } from "@next-auth/upstash-redis-adapter"
import upstashRedisClient from "@upstash/redis"

const redis = upstashRedisClient(
  process.env.UPSTASH_REDIS_URL,
  process.env.UPSTASH_REDIS_TOKEN
)

export default NextAuth({
  adapter: UpstashRedisAdapter(redis),
  providers: [
    GoogleProvider({
      clientId: process.env.GOOGLE_CLIENT_ID,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET,
    }),
  ],
})

Using Multiple Apps with a Single Upstash Redis Instance

The Upstash free-tier allows for only one Redis instance. If you have multiple Next-Auth connected apps using this instance, you need different key prefixes for every app.

You can change the prefixes by passing an options object as the second argument to the adapter factory function.

The default values for this object are:

const defaultOptions = {
  baseKeyPrefix: "",
  accountKeyPrefix: "user:account:",
  accountByUserIdPrefix: "user:account:by-user-id:",
  emailKeyPrefix: "user:email:",
  sessionKeyPrefix: "user:session:",
  sessionByUserIdKeyPrefix: "user:session:by-user-id:",
  userKeyPrefix: "user:",
  verificationTokenKeyPrefix: "user:token:",
}

Usually changing the baseKeyPrefix should be enough for this scenario, but for more custom setups, you can also change the prefixes of every single key.

Example:

export default NextAuth({
  ...
  adapter: UpstashRedisAdapter(redis, {baseKeyPrefix: "app2:"})
  ...
})