prerender-disk-cache

This is a plugin for prerender.io providing caching on disk. It is a fork of https://github.com/matthesrieke/prerender-filesystem-cache. Replaced unnecessary logs, cache only pages with 200 status.

Requires:

• node >= 4.0
• prerender >= 5.0.0

For prerender 4.x.x use prerender-filesystem-cache.

How it works

This plugin will store all prerendered pages into a filesystem hierarchy. For example:

• url http://domain.lo/?_escaped_fragment_=/en/about - will be saved in CACHE_ROOT_DIR/en/about/perender.cache.html
• url http://domain.lo/en/about?_escaped_fragment_= - will be saved in CACHE_ROOT_DIR/en/about/perender.cache.html
• url http://domain.lo/?_escaped_fragment_=/en/main/path/blah - will be saved in CACHE_ROOT_DIR/en/main/path/blah/perender.cache.html
• url http://domain.lo/en/main/path/blah?_escaped_fragment_= - will be saved in CACHE_ROOT_DIR/en/main/path/blah/perender.cache.html

How to use

The package is available on npm. Thus, in your local prerender project simply run:

$ npm install prerender-disk-cache --save

Then in the server.js that initializes prerender:

server.use(require('prerender-disk-cache'));

Configuration

Optionally, define some env variables:

export CACHE_ROOT_DIR=/your/directory/for/cache  
export CACHE_LIVE_TIME=10000 (in seconds)

• CACHE_ROOT_DIR defaults to os.tmpdir()/prerender-cache
• CACHE_LIVE_TIME defaults to 3600 (1 hour)