synt_backend/helpers/i18n.js

Synt light-weight node backend service

import { join } from "path";
import { readdirSync, lstatSync } from "fs";
import i18next from "i18next";
import Backend from "i18next-fs-backend";
import i18nextMiddleware from "i18next-http-middleware";

const localesFolder = join(__dirname, "../locales");

i18next
  .use(i18nextMiddleware.LanguageDetector) // the language detector, will automatically detect the users language, by some criteria... like the query parameter ?lng=en or http header, etc...
  .use(Backend) // you can also use any other i18next backend, like i18next-http-backend or i18next-locize-backend
  .init({
    initImmediate: false, // setting initImediate to false, will load the resources synchronously
    fallbackLng: "en",
    preload: readdirSync(localesFolder).filter((fileName) => {
      const joinedPath = join(localesFolder, fileName);
      return lstatSync(joinedPath).isDirectory();
    }),
    backend: {
      loadPath: join(localesFolder, "{{lng}}/{{ns}}.json"),
    },
  });

export { i18next };