create-apppaaaul/dist/templates/nextjs-ts-landing-prisma/project/src/auth.ts

Create projects as paaauldev would

import NextAuth from "next-auth";
import { PrismaAdapter } from "@auth/prisma-adapter";
import Google from "next-auth/providers/google";

import { db } from "./lib/db";

export const { handlers, signIn, signOut, auth } = NextAuth({
  adapter: PrismaAdapter(db),
  providers: [
    Google({
      clientId: process.env.AUTH_GOOGLE_ID!,
      clientSecret: process.env.AUTH_GOOGLE_SECRET!,
    }),
  ],
  session: {
    strategy: "jwt",
  },
  pages: {
    signIn: "/login",
    error: "/error",
  },
  callbacks: {
    async session({ session, token }) {
      if (session.user) {
        session.user.id = token.sub!;
      }

      return session;
    },
  },
});