Next-Auth Store Session in Redis - redis

Question

I'm coming from express, never using next-auth before but unsure how to store user session in a redis database.
On express, I would have done the following;
import express from 'express';
import session from 'express-session';
import connectRedis from 'connect-redis';
import Redis from 'ioredis';
import { __prod__, COOKIE_NAME } from './constants';
const main = async () => {
const RedisStore = connectRedis(session);
const redis = new Redis(process.env.REDIS_URL);
app.use(
session({
name: 'qid',
store: new RedisStore({
client: redis,
disableTouch: true,
ttl: 1000 * 60 * 60 * 24 * 365, // 1 year
}),
cookie: {
maxAge: 1000 * 60 * 60 * 24 * 365, // 1 year
httpOnly: true,
sameSite: 'lax',
secure: __prod__,
domain: __prod__ ? process.env.DOMAIN : undefined,
},
saveUninitialized: false,
secret: process.env.SESSION_SECRET,
resave: false,
}),
);
};
main()
[...nextauth].ts
import NextAuth, { type NextAuthOptions } from "next-auth";
import CredentialsProvider from "next-auth/providers/credentials";
import { PrismaAdapter } from "#next-auth/prisma-adapter";
import { prisma } from "../../../server/db/client";
export const authOptions: NextAuthOptions = {
callbacks: {
session({ session, user }) {
if (session.user) {
session.user.id = user.id;
}
return session;
},
},
adapter: PrismaAdapter(prisma),
providers: [
CredentialsProvider({
async authorize(credentials, req) {
//
},
}),
],
};
export default NextAuth(authOptions);
I can't find any implementations of redis in NextAuth, other than using Upstash for caching, but not for sessions.

Answer 1

I made an adapter for Next Auth that uses ioredis to store data in the Hash data structure.
In the Upstash adapter, they store the data with JSON.stringify.
In my adapter, I use the Hash data structure so it is easier to extend the User object.
You can take a look at this repository.