readability.js

let Readability = require('readability');

var fs = require('fs')

var JSDOM = require('jsdom').JSDOM;

var url = 'https://www.example.com/the-page-i-got-the-source-from';
var filename = '~/Downloads/test.html';

//------------------------------------------------------------------

// FROM FILE

var txt0;

fs.readFile(filename, 'utf8', function(err, html){
  if (err) throw err;
  txt0 = html;
});

var doc = new JSDOM(txt0, { url: url });

let reader = new Readability(doc.window.document);

let article = reader.parse();


reader = new Readability(doc.window.document);
article = reader.parse();

article.siteName
article.title
article.byline
article.content.replace(/\n/gi, '')


//-------------------------------------------------------------------

// FROM URL

const getScript = (url) => {
    return new Promise((resolve, reject) => {
        const http      = require('http'),
              https     = require('https');

        let client = http;

        if (url.toString().indexOf("https") === 0) {
            client = https;
        }

        client.get(url, (resp) => {
            let data = '';

            // A chunk of data has been recieved.
            resp.on('data', (chunk) => {
                data += chunk;
            });

            // The whole response has been received. Print out the result.
            resp.on('end', () => {
                resolve(data);
            });

        }).on("error", (err) => {
            reject(err);
        });
    });
};

// (async (url) => {
//     txt = getScript(url);
// })(url);

var txt0 = getScript(url);

var txt;
txt0.then(function(result){ txt = result; });

var doc = new JSDOM(txt, { url: url });

reader = new Readability(doc.window.document);
article = reader.parse();

article.siteName
article.title
article.byline
article.content.replace(/\n/gi, '')