Fun with browser automation

index.js

const puppeteer = require('puppeteer');

async function getLink (url, xpathExpression) {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto(url);
	let link = await page.$eval(xpathExpression, anchor => { return anchor.href; });
  await browser.close();
	return link;
};

(async () => {
	getLink('https://www.bluejeans.com/downloads', 'a[aria-label="Download BlueJeans for Mac"]').then(o => console.log(o));
	getLink('https://www.barebones.com/products/bbedit/download.html', 'table:first-of-type a.button').then(o => console.log(o));
	getLink('https://cyberduck.io/download/','a[href^="https://update.cyberduck.io/Cyberduck"]').then(o => console.log(o));
})();