With the Twitter Stream API, you can only open one stream at a time, so if you want to track different kinds of keywords (aka channels), all the tweets in result will be mixed up and you’ll need to do some post-processing to identify which tweet belongs to which channels.

I needed that kind of feature for my next project, so I decided to make a module out of it. Feel free to use it. Some infos you might be interested in :

• The API documentation (generated from source code with yuidoc)
• The github repo (with the README)
• twitter-stream-channels on npm – npm install twitter-stream-channels
• The module has a complete built-in mock version accessible via .getMockedClass() that will let you use it without connecting to Twitter (usefull because of their connexion limit)
• It also is unit-tested, if you want to contribute (first time I made unit-tests on node with mocked data dispatched by events – by the way, I improved test’s speed using process.nextTick instead of setTimeout in mocked mode).

I’m currently working on a project based on twitter-stream-channels that I wil release in a few weeks.

Tophe

edit : I just released the project I was talking about. More about it on this post.