Switch locale via route prefix toggle (Next.js i18n).

[shaadcode]

Basically, there is such a possibility in next-intl that it can only change by changing the prefix of the site language, but after changing the prefix?

That is, the user enters the following value in the browser's address bar:

example.com/en/path

Here the language of the site should be changed to English, but the prefix should be removed:

example.com/path

[barry166]

Use localePrefix: 'as-needed' when you only want to remove the prefix for the default locale:

export const routing = defineRouting({
  locales: ['en', 'de'],
  defaultLocale: 'en',
  localePrefix: 'as-needed'
});

With that setup, /en/path is a superfluous default-locale prefix and is redirected to /path, while a non-default locale remains /de/path. If you want every locale to use the same unprefixed URL, use localePrefix: 'never' and persist the selected locale in a cookie or domain; after the prefix is removed, the URL alone cannot identify the locale.