Next.js Pages Router internationalization (i18n)

import {NextIntlClientProvider} from 'next-intl';
import {useRouter} from 'next/router';
 
export default function App({Component, pageProps}) {
  const router = useRouter();
 
  return (
    <NextIntlClientProvider
      locale={router.locale}
      timeZone="Europe/Vienna"
      messages={pageProps.messages}
    >
      <Component {...pageProps} />
    </NextIntlClientProvider>
  );
}

export async function getStaticProps(context) {
  return {
    props: {
      // You can get the messages from anywhere you like. The recommended
      // pattern is to put them in JSON files separated by locale and read
      // the desired one based on the `locale` received from Next.js.
      messages: (await import(`../../messages/${context.locale}.json`)).default
    }
  };
}