How do I handle passport js redirects from Nuxt SSR?

Question

I am using Nuxt SSR with express session and I have a passport JS redirect from the server side

/**
 * POST /signup
 * Create a new local account.
 */
exports.postSignup = (req, res, next) => {
  const validationErrors = [];
  if (!validator.isEmail(req.body.email)) validationErrors.push({ msg: 'Please enter a valid email address.' });
  if (!validator.isLength(req.body.password, { min: 8 })) validationErrors.push({ msg: 'Password must be at least 8 characters long' });
  if (req.body.password !== req.body.confirmPassword) validationErrors.push({ msg: 'Passwords do not match' });

  if (validationErrors.length) {
    req.flash('errors', validationErrors);
    return res.redirect('/signup');
  }
  req.body.email = validator.normalizeEmail(req.body.email, { gmail_remove_dots: false });

  const user = new User({
    email: req.body.email,
    password: req.body.password
  });

  User.findOne({ email: req.body.email }, (err, existingUser) => {
    if (err) { return next(err); }
    if (existingUser) {
      req.flash('errors', { msg: 'Account with that email address already exists.' });
      return res.redirect('/signup');
    }
    user.save((err) => {
      if (err) { return next(err); }
      req.logIn(user, (err) => {
        if (err) {
          return next(err);
        }
        res.redirect('/');
      });
    });
  });
};

If I call the redirect method? it would reload the page and clear Vuex state right? How do I do this redirect from passport such that Vuex state is kept intact and client page does not refresh

Answer 1

It is indeed better to asynchronously handle form submissions to avoid page refresh as @Darius mentioned. But for completion's sake I'd like to mention that solutions do exist to persist your Vuex state, such as vuex-persistedstate. It can be used to persist the state to localStorage, sessionStorage, or even cookies. It can also be used as a Nuxt plugin.