strapi/public/app/i18n.js

/**
 * i18n.js
 *
 * This will setup the i18n language files and locale data for your plugin.
 *
 */
// import { addLocaleData } from 'react-intl';

// import enLocaleData from 'react-intl/locale-data/en';
// import frLocaleData from 'react-intl/locale-data/fr';

// export const appLocales = [
//   'en',
//   'fr',
//
// ];

import enTranslationMessages from './translations/en.json';
import frTranslationMessages from './translations/fr.json';

// addLocaleData(enLocaleData);
// addLocaleData(frLocaleData);

const formatTranslationMessages = (messages) => {
  const formattedMessages = {};
  for (const message of messages) {
    formattedMessages[message.id] = message.message || message.defaultMessage;
  }

  return formattedMessages;
};

export const translationMessages = {
  en: formatTranslationMessages(enTranslationMessages),
  fr: formatTranslationMessages(frTranslationMessages),
};