client/src/i18n.js

import i18n from 'i18next';
import { initReactI18next } from 'react-i18next';
import translationEn from '../public/locale/en/translation.json';
import translationFr from '../public/locale/fr/translation.json';

i18n.use(initReactI18next).init({
  debug: process.env.NODE_ENV == 'development',
  lng: 'en',
  interpolation: {
    escapeValue: false,
  },
  resources: {
    en: {
      translation: translationEn,
    },
    fr: {
      translation: translationFr,
    },
  },
});

export default i18n;