Rendering HTML reports with puppeteer.

README.md

yarn install
./render.js https://fivethirtyeight.com 538.pdf

package.json

{
  "dependencies": {
    "docopt": "^0.6.2",
    "puppeteer": "^2.0.0"
  }
}

render.js

#!/usr/bin/env node
/* eslint-disable no-console */

const doc = `
Render webpages to a PDF file.

Usage:
  render.js [options] <url> <pdf-filename>

Options:
  -b, --print-background  Print backgrounds.
  -f, --format=<size>     Set output format size [default: Letter].
  -h, --help              Show this screen.
  -v, --verbose           Output status messages.
  --version               Show version.
`;

const puppeteer = require("puppeteer");
const { docopt } = require("docopt");

const options = docopt(doc, { version: "0.0.1" });

function log(msg) {
  if (options["--verbose"]) {
    console.log(msg);
  }
}

(async () => {
  const browser = await puppeteer.launch();
  const page = await browser.newPage();
  log("Rendering: " + options["<url>"]);
  await page.goto(options["<url>"], {
    waitUntil: "networkidle0"
  });
  await page.pdf({
    path: options["<pdf-filename>"],
    format: options["--format"],
    printBackground: options["--print-background"]
    // preferCSSPageSize: true
  });

  await browser.close();
})();