Use puppeteer on aws lambda to render html content and upload a pdf from it to s3

aws-lambda-s3-puppeteer.js

// Setup:
// $ npm i --save aws-sdk@^2.541.0 chrome-aws-lambda@^1.20.0 puppeteer@^1.20.0
//
// Deploy Script:
// $ rm -Rf node_modules
// $ npm install
// $ rm -rf node_modules/puppeteer/.local-chromium/**
// $ rm pack.zip
// $ zip pack.zip index.js -r node_modules/*
// $ aws lambda --region $REGION update-function-code --function-name $LAMBDA_FN_NAME --zip-file fileb://pack.zip

// index.js content
const AWS = require('aws-sdk');
const chromium = require("chrome-aws-lambda");

const s3 = new AWS.S3();

exports.handler = async (event, context, callback) => {
  const executablePath = await chromium.executablePath;

  const browser = await chromium.puppeteer.launch({
    args: chromium.args,
    defaultViewport: chromium.defaultViewport,
    executablePath: executablePath,
    headless: chromium.headless,
  });

  const page = await browser.newPage();
  await page.setContent('<h1>Hello</h1>');

  const pdfStream = await page.pdf();

  const params = { Bucket: '$BUCKET_NAME', Key: 'testfile.pdf', ContentType: 'application/pdf', Body: pdfStream };

  return s3.putObject(params).promise();
};

Customization for pdf rendering a web page (https://github.com/GoogleChrome/puppeteer/blob/master/docs/api.md#pagepdfoptions):

// set a custom width
// render page background
const pdfStream = await page.pdf({ width: '1920px', printBackground: true });