serverless screenshot

serverlessScreenshot.js

exports.run = async (browser, url, key) => {
  const page = await browser.newPage();
  await page.goto(url,
   {waitUntil: ['domcontentloaded', 'networkidle0']}
  );
  await page.setViewport({width: 1464, height: 764});
  await page.screenshot({
    path: '/tmp/screenshot.png',
    clip: {
      x: 64,
      y: 64,
      width: 1400,
      height: 700,
    },
  });

  const aws = require('aws-sdk');
  const s3 = new aws.S3({apiVersion: '2006-03-01'});
  const fs = require('fs');
  const screenshot = await new Promise((resolve, reject) => {
    fs.readFile('/tmp/screenshot.png', (err, data) => {
      if (err) return reject(err);
      resolve(data);
    });
  });
  await s3.putObject({
    Bucket: 'assets.bounties.network',
    Key: key,
    Body: screenshot,
    ACL: 'public-read',
  }).promise();
  await page.close();
  await axios.post('https://api.prerender.io/recache', {
    prerenderToken: process.env.PRERENDER_TOKEN,
    url: url,
  });
  const lastLetterOfUrl = url.slice(-1);
  let secondaryUrl;
  if (lastLetterOfUrl === '/') {
    secondaryUrl = url.slice(0, -1);
  } else {
    secondaryUrl = url + '/';
  }
  await axios.post('https://api.prerender.io/recache', {
    prerenderToken: process.env.PRERENDER_TOKEN,
    url: secondaryUrl,
  });
  return 'done';
};