Next.js NextAuth.js mongoose やるしかない

npx create-next-app@latest --ts --use-npm

npm i next-auth mongoose

import NextAuth from "next-auth"
import TwitterProvider from "next-auth/providers/twitter"

export default NextAuth({
  providers: [
    TwitterProvider({
      clientId: process.env.TWITTER_CLIENT_ID,
      clientSecret: process.env.TWITTER_CLIENT_SECRET,
    }),
  ],
})