server-with-passport.js

const express = require('express');
const session = require('express-session');
const cookieParser = require('cookie-parser');
const passport = require('passport');
const LocalStrategy = require('passport-local').Strategy;
const next = require('next');

const dev = process.env.NODE_ENV !== 'production'
const app = next({ dev })
const handle = app.getRequestHandler()

app.prepare().then(() => {

    const server = express();
    server.set('trust proxy', 1);
    server.use(express.urlencoded({extended: true}));
    server.use(cookieParser());
    server.use(session({ 
        secret: "cats", 
        cookie: { maxAge: 60000000 }
    }));
    server.use(passport.initialize());
    server.use(passport.session());

    // Passport Authentication -- bare bones test setup
    passport.use(new LocalStrategy(
      function(username, password, done) {
          if ((username === 'adam') && (password === 'test')) {
              const user = { id: 1, name: 'adam' };
              return done(null, user);
          }
          else {
              console.log("login failed");
              done(null, false, { message: 'Incorrect login.' });
          }
      }));
  
    passport.serializeUser(function(user, done) {
        done(null, user.id);
    });
  
    passport.deserializeUser(function(id, done) {
          done(null, { id: 1, name: 'adam' });
    });
      
    const isLoggedIn = function(req, res, next) {
        console.log("checking if logged in...")
        if (req.isAuthenticated()) {
          console.log("yep!");
          return next();
        }
        console.log("nope, not logged in");
        app.render(req, res, '/login');
    };

    server.post('/login', passport.authenticate('local', { successRedirect: '/', failureRedirect: '/login' }));

    server.get('/login', (req, res) => {
      app.render(req, res, '/login');
    });

    server.get('/logout', (req, res) => {
      console.log("got to logout");
      req.session.destroy();
      app.render(req, res, '/logout-screen');
    })

    server.get('/p/:id', isLoggedIn, (req, res) => {
      const actualPage = '/post'
      const queryParams = { id: req.params.id } 
      app.render(req, res, actualPage, queryParams)
    })

    server.get('*', isLoggedIn, (req, res) => {
      return handle(req, res)
    });

    server.listen(3000, (err) => {
      if (err) throw err
      console.log('> Ready on http://localhost:3000')
    })
  })