astro-i18n.config.ts

import { defineAstroI18nConfig } from "astro-i18n";

export default defineAstroI18nConfig({
  primaryLocale: "fr", // default app locale
  secondaryLocales: ["de", "ru"], // other supported locales
  fallbackLocale: "en", // fallback locale (on missing translation)
  trailingSlash: "never", // "never" or "always"
  run: "server", // "client+server" or "server"
  showPrimaryLocale: true, // "/en/about" vs "/about"
  translationLoadingRules: [], // per page group loading
  translationDirectory: {}, // translation directory names
  translations: {}, // { [translation_group1]: { [locale1]: {}, ... } }
  routes: {
    "de": {
      "cookies": "cookie-richtlinien",
      "contact": "kontakt",
    },
    "ru": {
      "cookies": "cookies",
      "contact": "контакты",
    },
  }, // { [secondary_locale1]: { about: "about-translated", ... } }
});