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

import NextAuth from "next-auth";
import DiscordProvider from "next-auth/providers/discord";
import { PrismaAdapter } from "@next-auth/prisma-adapter";
import prisma from "../../../lib/prisma";

export default NextAuth({
  adapter: PrismaAdapter(prisma),
  providers: [
    DiscordProvider({
      clientId: process.env.DISCORD_CLIENT_ID,
      clientSecret: process.env.DISCORD_CLIENT_SECRET,
    }),
  ],
  callbacks: {
    async session({ session, token, user }) {
      session.user.id = user.id;
      // console.log(JSON.stringify(user));
      return session;
    },
  },
});