What is next-intl?

next-intl is a comprehensive internationalization library specifically designed for Next.js applications. It provides type-safe translations, automatic locale detection, and seamless integration with Next.js routing. Frontend Accelerator uses next-intl as its primary i18n solution.

Key features of next-intl:

• Type-safe translations: Full TypeScript support with autocomplete for translation keys
• App router support: Works seamlessly with Next.js 13+ App Router
• Server and client components: Translations work in both RSC and client components
• Automatic locale detection: Detects user language from browser settings or URL
• Rich rormatting: Built-in support for dates, numbers, plurals, and rich text

Implementation in Frontend Accelerator:

// app/[locale]/layout.tsx
import { NextIntlClientProvider } from 'next-intl';
import { getMessages } from 'next-intl/server';

export default async function LocaleLayout({ children, params: {locale} }) {
  const messages = await getMessages();
  
  return (
    <NextIntlClientProvider messages={messages}>
      {children}
    </NextIntlClientProvider>
  );
}

// Component usage
import { useTranslations } from 'next-intl';

function Homepage() {
  const t = useTranslations('welcome');
  return <h1>{t('title')}</h1>;
}

AI-Friendly: next-intl's structured API and TypeScript integration make it perfect for AI-assisted development. AI can generate translation files, validate translation keys, suggest missing translations, and ensure consistent message formatting across locales. The type system prevents translation errors at compile time.