bhashantarh/lib/translateText.js

Tiny translation wrapper with fallbacks (LibreTranslate -> MyMemory) and detection with franc fallback.

const axios = require('axios');
const FALLBACK_URL = 'https://libretranslate.de';

// MyMemory fallback
async function tryMyMemory(text, from, to) {
  const url = 'https://api.mymemory.translated.net/get';
  const res = await axios.get(url, {
    params: { q: text, langpair: `${from}|${to}` },
    timeout: 8000
  });
  return res.data?.responseData?.translatedText || null;
}

async function tryLibreTranslate(text, from, to) {
  const body = { q: text, source: from, target: to, format: 'text' };
  const res = await axios.post(`${FALLBACK_URL}/translate`, body, {
    headers: { 'Content-Type': 'application/json' },
    timeout: 10000
  });
  return res.data?.translatedText || null;
}

async function translate(text, from, to) {
  // 1) LibreTranslate.de
  try {
    const t1 = await tryLibreTranslate(text, from, to);
    if (t1) return t1;
  } catch (err) {
    console.error('LibreTranslate.de translate error:', err.message);
  }

  // 2) MyMemory
  try {
    const t2 = await tryMyMemory(text, from, to);
    if (t2) return t2;
  } catch (err) {
    console.error('MyMemory translate error:', err.message);
  }

  return null;
}

module.exports = translate;