htmltopdf with pupeteer and chrome

README.md

htmltopdf with pupeteer and chrome

Install

Install project dependencies:

yarn

Start

yarn start

Usage

Do an http call on http://localhost:8080/convert with the following payload:

{
    "content": "<div><h1>Content</h1></div>"
}

The service will respond with a 200 OK response, and the payload will be the PDF binary

index.js

require('dotenv').config();
const express = require('express');
const bodyParser = require('body-parser');
const puppeteer = require('puppeteer-core');

const server = async function() {
  const app = express();
  const port = process.env.PORT || 8080;

  app.use(bodyParser.json({
    type: 'application/json',
    limit: '5mb'
  }));

  app.post('/convert', async function(req, res) {
    const browser = await puppeteer.launch({
      executablePath: process.env.CHROME_EXEC || 'google-chrome',
      headless: true,
      args: [
        '--no-sandbox',
        '--disable-gpu'
      ]
    });
    const page = await browser.newPage();
    const { content } = req.body;

    await page.setContent(content);

    let options = {
      format: "A4",
    };

    const pdfContentBuffer = await page.pdf(options);

    res.append('Content-Type', 'application/pdf');
    res.append('Content-Length', pdfContentBuffer.length);

    await browser.close();

    res.send(pdfContentBuffer);
  });

  app.listen(port, function() {
    console.log('listening on port ' + port)
  })
};

server();

package.json

{
  "name": "htmltopdf",
  "version": "1.0.0",
  "description": "",
  "main": "index.js",
  "scripts": {
    "start": "node index.js",
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "body-parser": "^1.19.0",
    "dotenv": "^8.2.0",
    "express": "^4.17.1",
    "puppeteer-core": "1.20.0"
  },
  "devDependencies": {},
  "engines": {
    "node": ">=14.0.0"
  }
}