Is there any graceful way to check for RSS feed changes?

[EwanValentine]

We're trying to implement something whereby new additions to an RSS feed are appended automatically using socket.io. I sort of got it working using setInterval... but I just wondered if there was a more graceful suggestion?

[sentientwaffle]

Well, there's feed-poll but that just does a setInterval also. If you want to go the push route you can use Superfeedr, but if you are sticking with pure rss/atom you are stuck polling.