Lingoda Teaching Material Downloader in Node.js

lingoder.js

/**
 * Node.js Script to Download Lingoda Teaching Material
 */
const fs = require('fs');
const needle = require('needle');
const { promisify } = require('util');
const { stringify } = require('query-string');
const mkdir = require('mkdirp-promise');
const writeFileAsync = promisify(fs.writeFile);

const downloadLang = 'spanish'; // change this one

const lingodaUrl = 'https://www.lingoda.com';
const apiUrl = `${lingodaUrl}/en/api`;
const downloadFolder = './download';

const run = async () => {
    await mkdir(downloadFolder);

    const res = await needle(`${apiUrl}/modules`, { json: true });
    const modules = res.body.data;

    modules.forEach(async m => {
        console.log(`[${m.name}] Downloading Modules`);

        const params = stringify({
            moduleId: m.id,
            section: downloadLang
        });

        console.log(`[API_CALL] ${apiUrl}/learning-units?${params}`);

        let resUnits = await needle(`${apiUrl}/learning-units?${params}`, {
            json: true
        });

        if (!resUnits.body.included || !resUnits.body.included.lessons) {
            console.log(`Skip Module ${m.name}`);
            return;
        }

        const { lessons } = resUnits.body.included;

        lessons.forEach(async lesson => {
            const docUrl = `${lingodaUrl}${lesson.presentation}`;
            console.log(`[Download] ${docUrl}`);
            const doc = await needle(docUrl);

            const titleSafe = lesson.title.replace(/ /g, '-');
            const pdfName = `${lesson.label}-${titleSafe}.pdf`;
            const destFolder = `${downloadFolder}/${m.name}`;

            await mkdir(destFolder);
            await writeFileAsync(`${destFolder}/${pdfName}`, doc.body);
        });
    });
};

run();

Hello! I've tried the code but it doesn't work. Do you have an updated version?