[i18n routing] Check in server if locale provided

[jcamilom]

For the following configuration

// next.config.js
module.exports = {
  i18n: {
    locales: ['en-US', 'fr', 'nl-NL'],
    defaultLocale: 'en-US',
  },
}

Is there any way to check in the server if the page was requested without any locale?

When accessing i.e. /login or /en-US/login the locale provided in the context for getServerSideProps is the same. That is en-US.

I would need to distinguish the case when no locale was provided in the URL.