In this get route, the previous link it was redirected from is stored in the req.session object under returnTo. Once redirected, it goes to the /login and we are able to view the object in the console.
router.get('/login', (req, res) => {
console.log('get in user route..', req.session)
res.render('users/login')
})
req.session :
https://i.stack.imgur.com/xPIgB.png
router.post('/login', passport.authenticate('local', { failureFlash: true, failureRedirect: '/login' }), (req, res) => {
req.flash('success', 'Welcome back!')
const redirectUrl = req.session.returnTo || '/campgrounds'
res.redirect(redirectUrl)
})
However, upon submitting the login details, it consistently redirects to the /campgrounds route.