link-stack/apps/link/middleware.ts

import { withAuth } from "next-auth/middleware";

export default withAuth(
  () => { },
  {
    pages: {
      signIn: `/login`,
    },
    callbacks: {
      authorized: ({ token, req }) => {
        const {
          url,
          headers,
        } = req;

        // check login page
        const parsedURL = new URL(url);
        if (parsedURL.pathname.startsWith('/login')) {
          return true;
        }

        // check session auth
        const authorizedDomains = ["redaranj.com", "digiresilience.org"];
        const userDomain = token?.email?.toLowerCase().split("@").pop() ?? "unauthorized.net";

        if (authorizedDomains.includes(userDomain)) {
          return true;
        }

        return false;
      },
    }
  }
);