SaaS Starter Kit

// app/api/auth/[...nextauth]/route.ts
import NextAuth from "next-auth";
import { PrismaAdapter } from "@auth/prisma-adapter";
import { prisma } from "@/lib/prisma";

export const { handlers, signIn, signOut, auth } = NextAuth({
  adapter: PrismaAdapter(prisma),
  providers: [
    Google({ clientId: env.GOOGLE_ID, clientSecret: env.GOOGLE_SECRET }),
    GitHub({ clientId: env.GITHUB_ID, clientSecret: env.GITHUB_SECRET }),
    Resend({ from: "noreply@yoursaas.com" }),
  ],
  callbacks: {
    session: ({ session, user }) => ({
      ...session,
      user: { ...session.user, id: user.id, role: user.role },
    }),
  },
});