prerender-mongodb-cache
Prerender plugin for MongoDB caching, to be used with the prerender node application from https://github.com/prerender/prerender. It relys on cache-manager and on the mongo adapter
How it works
This plugin will store all prerendered pages into a MongoDB instance. There is currently no expiration functionality, which means that once a page is stored, future requests for prerendering a page will always be served from from the database cache if it's available and the page caches are never updated.
To set the cache lifetime use the environment variable when launching prerender: CACHE_TTL (in seconds) by default it has been set to one month.
How to use
In your local prerender project run:
$ npm install prerender-mongodb-cache --save
Then in the server.js that initializes the prerender:
server.use(require('prerender-mongodb-cache'));Configuration
By default it will connect to your MongoDB instance running on localhost and use the prerender collection. You can overwrite this by setting the MONGOLAB_URI or MONGOHQ_URL environment variables to valid MongoDB connection strings.
This is done to make it work automatically when deployed on Heroku with the MongoDB add-ons.