html to pdf using puppeteer

//npm init -y
//npm install --save puppeteer
//usage: node script.js /path/to/input.html /path/to/output.pdf


//script.js
const puppeteer = require('puppeteer');

(async () => {
  
  let fileinput = process.argv[2];
  let fileoutput = process.argv[3];
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  await page.goto('file:///${fileinput}', {waitUntil: 'networkidle'});
  await page.pdf({path: fileoutput, format: 'A4'});

  browser.close();
})();