sharing Auth among Apps

appA-appB.js

// In protected routes of App A and App B

import { validateToken } from './path-to-shared-auth-service';

// Middleware to check token before accessing protected routes
async function requireAuthentication(req, res, next) {
  const token = req.cookies.authToken; // Retrieve token from cookies
  const isValidToken = await validateToken(token);

  if (isValidToken) {
    // User is authenticated, proceed to protected content
    next();
  } else {
    // Token is invalid, redirect to login or handle as needed
    res.redirect('/login');
  }
}

// Usage in a protected route
app.get('/protected-route', requireAuthentication, (req, res) => {
  // Render protected content
});

next-authA.js

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

import NextAuth from 'next-auth';
import Providers from 'next-auth/providers';

export default NextAuth({
  providers: [
    Providers.Google({
      clientId: process.env.GOOGLE_CLIENT_ID,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET,
    }),
    // Add more providers as needed
  ],
  // Add session management, token handling, etc.
});

next-authB.js

App B
// pages/api/auth/[...nextauth].js (similar to App A)

import NextAuth from 'next-auth';
import Providers from 'next-auth/providers';

export default NextAuth({
  providers: [
    Providers.Google({
      clientId: process.env.GOOGLE_CLIENT_ID,
      clientSecret: process.env.GOOGLE_CLIENT_SECRET,
    }),
    // Add more providers as needed
  ],
  // Add session management, token handling, etc.
});

share-auth.js

// In a shared authentication service or utility

import { getSession } from 'next-auth/react';

// Validate the incoming token from each app
async function validateToken(token) {
  const session = await getSession({ token });
  return session ? true : false;
}

export { validateToken };

import React, { useState } from 'react';

function YourComponent() {
const numberOfItems = 5; // You can adjust this as needed
const initialActiveState = Array.from({ length: numberOfItems }, () => false);

const [active, setActive] = useState(initialActiveState);

// Your component JSX and logic here
}