Puppeteer(Chrome headless node API) based web page renderer

Puppeteer (Chrome headless node API) based web page renderer.

Useful server side rendering through proxy. Outputs HTML, PDF and screenshots as PNG.

Requirements

You can run Chromium or docker.

Getting Started

Install dependencies.

npm install

Start server (If you can run Chromium)

npm start

(service port: 3000)

Start server using docker (If you can not run Chromium and installed docker)

docker run -d --name renderer -p 8080:3000 zenato/puppeteer-renderer

Test on your browser

Input url http://localhost:{port}/?url=https://www.google.com

If you can see html code, server works fine.

Integration with existing service.

If you have active service, set proxy configuration with middleware. See puppeteer-renderer-middleware for express.

const renderer = require('puppeteer-renderer-middleware');

const app = express();

app.use(renderer({
  url: 'http://installed-your-puppeteer-renderer-url',
  // userAgentPattern: /My-Custom-Agent/i,
  // excludeUrlPattern: /*.html$/i
  // timeout: 30 * 1000,
}));

// your service logics..

app.listen(8080);

API

Name	Required	Value	Description	Usage
`url`	yes		Target URL	`http://puppeteer-renderer?url=http://www.google.com`
`type`		`pdf` or `screenshot`	Rendering another type.	`http://puppeteer-renderer?url=http://www.google.com&type=pdf`
(Extra options)			Extra options (see puppeteer API doc)	`http://puppeteer-renderer?url=http://www.google.com&type=pdf&scale=2`

You can add a PUPPETEER_RENDERER_KEY environment variable and the service will require an Authentication: {key} header set to the same string as the environment variable to work.

PDF File Name Convention

Generated PDFs are returned with a Content-disposition header requesting the browser to download the file instead of showing it. The file name is generated from the URL rendered:

URL	Filename
`https://www.example.com/`	`www.example.com.pdf`
`https://www.example.com:80/`	`www.example.com.pdf`
`https://www.example.com/resource`	`resource.pdf`
`https://www.example.com/resource.extension`	`resource.pdf`
`https://www.example.com/path/`	`path.pdf`
`https://www.example.com/path/to/`	`pathto.pdf`
`https://www.example.com/path/to/resource`	`resource.pdf`
`https://www.example.com/path/to/resource.ext`	`resource.pdf`

adrm/puppeteer-renderer