@dfrechette/rendertron-middleware v0.1.8

rendertron-middleware

An Express middleware for Rendertron.

Rendertron is a server which runs headless Chrome and renders web pages on the fly, which can be set up to serve pages to search engines, social networks and link rendering bots.

This middleware checks the User-Agent header of incoming requests, and if it matches one of a configurable set of bots, proxies that request through Rendertron.

Usage

$ npm install --save express @dfrechette/rendertron-middleware

const functions = require('firebase-functions');
const express = require('express');
const app = express();
const rendertron = require('rendertron-middleware');

const BOTS = rendertron.botUserAgents.concat('googlebot');
const BOT_UA_PATTERN = new RegExp(BOTS.join('|'), 'i');

app.use(rendertron.makeMiddleware({
  proxyUrl: 'http://my-rendertron-instance/render',
  userAgentPattern: BOT_UA_PATTERN,
  host: 'my-fancy-domain.com', // optional
  protocol: 'https' // optional
}));

...

Configuration

The makeMiddleware function takes a configuration object with the following properties: