What is the best way to generate an atom or rss feed in node.js application

Searching the NPM registery for RSS

gives rss

See their github page for more details.

As general advice, do search the npm registry for relevant keywords. It'll make your life easier.

You can use Feed for Node.js. It is a very simple wrapper that I created a couple of weeks ago to generate some Atom and RSS feed in no time.

Simply install it using NPM:

$ npm install feed

Then, follow the documentation available there http://projets.jpmonette.net/en/feed !