Redirect every non defaultLocale route

This is my i18n configuration:

locales: ['en', 'hu'],
fallbacks: { en: 'hu' },
defaultLocale: 'en',

i18n initialized to the routes with this middleware:

const langRouter = (req, res, next) => {
  const paramsLang = req.params.lang;
  const resLocals = res.locals;
  if (/^(en|hu)$/.exec(paramsLang)) {
    i18n.setLocale([req, resLocals], paramsLang);
    resLocals.language = `/${paramsLang}`;
  }
  next();
};

app.all('/:lang/*', langRouter);
app.use('/:lang', langRouter);

In the past I redirected every route this way for example when someone requested the frontpage:

app.use('/:lang', index);
app.use('/', (req, res) =>
  res.status(302).redirect(`/${req.getLocale()}`)
);

Now I try to only redirect the /hu route:

app.use('/hu', index);
app.use('/', (req, res, next) => {
  if (req.headers['accept-language'] === 'hu') {
    return res.status(302).redirect('/hu');
  }
  return next();
});
app.use('/', index);

This is not works, not redirecting the frontpage. Another problem is the frontpage (and the entire site) translated to Hungarian.

What I want is the users will be redirected to /hu route when their browsers are set to hungarian language. The / route should always return the defaultLocale (english).

So these routes always be english:

/
/blog
/contact

And I want to redirect to these routes only those users whose browsers set to hungarian:

/hu
/hu/blog
/hu/contact

How can this be achieved?

[DJviolin]

In the last 2 years? Honestly, I haven’t used i18n-node at all, moreover, I moved to API design.

In the basic, yes, I wanted something similar.

[mrrovot]

maybe @mashpie