This is a brief example of how to bust the cache for a set of URLs on the Fastly CDN. You will need a Fastly API key, and to have stored that in the environment variable FASTLY_API_KEY.
git clone https://github.com/simonprickett/node-bust-fastly.git
cd node-bust-fastly
npm install
Edit index.js to have your URLs in there, then:
npm start