nuxt-i18n-micro/dist/runtime/locale-server-middleware.js

Nuxt I18n Micro is a lightweight, high-performance internationalization module for Nuxt, designed to handle multi-language support with minimal overhead, fast build times, and efficient runtime performance.

import { detectCurrentLocale } from "./utils/locale-detector.js";
import { useRuntimeConfig } from "#imports";
export const useLocaleServerMiddleware = (event, defaultLocale, currentLocale) => {
  const config = useRuntimeConfig(event);
  const { locales, defaultLocale: configDefaultLocale, fallbackLocale } = config.public.i18nConfig;
  const detectedLocale = currentLocale || detectCurrentLocale(event, { fallbackLocale, defaultLocale: defaultLocale || configDefaultLocale });
  const localeConfig = locales?.find((l) => l.code === detectedLocale) ?? null;
  const availableLocales = locales?.map((l) => l.code) ?? [];
  const isDefault = detectedLocale === (defaultLocale || configDefaultLocale || "en");
  const isFallback = detectedLocale === (fallbackLocale || defaultLocale || configDefaultLocale || "en");
  return {
    current: detectedLocale,
    default: defaultLocale || configDefaultLocale || "en",
    fallback: fallbackLocale || defaultLocale || configDefaultLocale || "en",
    available: availableLocales,
    locale: localeConfig,
    isDefault,
    isFallback
  };
};