Translates an i18n JSON file to a different language

translation.js

const fs = require('fs').promises;
const translate = require('google-translate-api-x');

async function translateIt(file) {
  try {
    // read file and parse it as JSON
    const data = await fs.readFile(file, 'utf8');
    const obj = JSON.parse(data);

    // prepare an array of translation keys and an array of translation strings
    const translationKeys = Object.keys(obj);
    const translationStrings = Object.values(obj);

    // translate the strings and store the result in an array
    const translations = await translate(translationStrings, { from: 'en', to: 'de' });

    // create a new object with the translation keys and the translated strings
    const translatedJson = translationKeys.reduce((acc, key, i) => {
      acc[key] = translations[i].text;
      return acc;
    }, {});

    // write the translated JSON to a file
    const jsonString = JSON.stringify(translatedJson);
    await fs.writeFile('de.json', jsonString);
  } catch (err) {
    console.error('Failed to translate file', err);
  }
}