Create a full-height screenshot of a website using [puppeteer](https://github.com/GoogleChrome/puppeteer)

screenshot.js

const puppeteer = require('puppeteer');

const width = 1200;
const url = process.argv.length > 2 ? process.argv[2] : 'https://ea.com';
const screenshotPath = process.argv.length > 3 ? process.argv[3] : 'screenshot.png';
console.log(`${url} --> ${screenshotPath}`);

(async () => {
  const browser = await puppeteer.launch();
  try {
    const page = await browser.newPage();
    // pre-set the width, otherwise it will be 800px by default.
    await page.setViewport({ width, height: 600 });
    // go to the url & get the height of entire site
    await page.goto(url);
    const height = await page.evaluate(() => {
      return document.body.clientHeight
    });
    console.log(`Dimensions: ${width} x ${height}`);
    // set the final dimensions
    await page.setViewport({ width, height });
    // take the screenshot and save it to the given path
    await page.screenshot({path: screenshotPath});
    console.log('screenshot saved to ', screenshotPath);
  } catch (err) {
    console.error(err);
  } finally {
    await browser.close();
  }
})();