simple node script to screen shot whole web page

node_screenshot_puppeteer.js

#!/usr/bin/env node

// must install global puppeteer node module and npm link
const puppeteer = require('puppeteer');

const [,, ...args] = process.argv

const url = args[0]
if (!url)
{
  console.log("please provide url!")
  return
}
var datetime = new Date();
var isoDate = datetime.toISOString()
const screenshotName = args[1] || `screen_${isoDate}`

async function screenshot(){
  // console.log(url)
  // console.log(screenshotName)
  console.log(`start screenshot ${url}`)
  let browser
  try {
      browser = await puppeteer.launch();
    const page = await browser.newPage();
    page.setViewport({width: 1920, height: 1080})
    await page.goto(url);
    const filename = screenshotName + ".png"
    await page.screenshot({fullPage: true, path: filename});
    await browser.close();
  console.log(`done. export screen to: ${filename}`)
  } catch (error) {
    console.error(error)
  }
  finally
  {
if(!!browser)
{
browser.close()
}
  }
}

 screenshot()