fetch data from one or multiple urls

fetch.js

    // store urls to fetch in an array
    const urls = [
      '/ajax/getLanguagesRate?sourceLang=arabic&targetLang=albanian',
      '/ajax/getLanguagesRate?sourceLang=arabic&targetLang=afrikaans',
      '/ajax/getSubjectRate?subject=legal',
      '/ajax/getDeliveryRate?delivery=standart',
    ];  

    // from multiple urls
    Promise.all(urls.map((url) => fetch(url)))
      .then((resp) => Promise.all(resp.map((r) => r.json())))
      .then((result) => {
        // ...
        console.log('multiple rates data', result);
      }).catch((error) => {
        // if there's an error, log it
        console.log(error);
      });

    // from single url
    fetch(urls[0]).then(
      (response) => response.json(),
    ).then((jsonData) => { // handle json data processing here
      console.log('rate jsonData', jsonData);
    }).catch((error) => {
      // if there's an error, log it
      console.log(error);
    });