pupperender

ExpressJs middleware for rendering PWA to bots using Puppeteer

This is a middleware for ExpressJs that uses Puppeter for render the page requested by "indexing" bots (and not).

This is a fork of the rendertron-middleware but using Puppeter instead of Rendertron, without needing another server to render the app. I have made some changes for my personal use (like removing the inject ShadyDOM option).

Install

$ yarn add pupperender

Usage

const express = require('express');
const pupperender = require('pupperender');

const app = express();

app.use(pupperender.makeMiddleware({}));

app.use(express.static('files'));
app.listen(8080);

Configuration

Like rendertron-middleware I decided to expose a makeMiddleware function that takes a configuration object with the following properties:

| Property | Default | Description | | -------- | ------- | ----------- | | userAgentPattern | A set of known bots that benefit from pre-rendering. Full list. | RegExp for matching requests by User-Agent header. | | excludeUrlPattern | A set of known static file extensions. Full list. | RegExp for excluding requests by the path component of the URL. | | timeout | 11000 | Millisecond timeout for waiting the page to load. Used by Puppeter. See also the Puppeter waitFor() | | debug | false | DEBUG flag to show some logs | | useCache | false | If the puppeterized content should be cached to speed up subsequent requests. | | cacheTTL | 3600 | Seconds until cached content is disregarded and puppeterized again. Only considered when useCache is true. |

License

MIT © LasaleFamine