middleware.ts

import { NextResponse } from 'next/server';
import type { NextRequest } from 'next/server';
import { getIronSession } from 'iron-session/edge';
import { sessionOptions } from '@libs/session';

export const middleware = async (req: NextRequest) => {
	const res = NextResponse.next();
	const session = await getIronSession(req, res, sessionOptions);

	// do anything with session here:
	const { user } = session;

	// like mutate user:
	// user.something = someOtherThing;
	// or:
	// session.user = someoneElse;

	// uncomment next line to commit changes:
	// await session.save();
	// or maybe you want to destroy session:
	// await session.destroy();

	console.log('user session from middleware:', JSON.stringify(user, null, 2));

	// demo:
	if (user?.login !== 'admin@test.com') {
		return new NextResponse(null, { status: 403 }); // unauthorized to see pages inside admin/
	}

	return res;
};

export const config = {
	matcher: '/dashboard',
};