CHAPTER 9
EVENTS AROUND THE WEB

Being able to fire rules against Web sites in people’s browsers is a powerful idea that has numerous applications, but the Live Web is bigger than just rearranging HTML in the browser. The Live Web encompasses the whole of the Internet.

Events happen all the time on the Internet, but for them to be visible, something has to notice the event and signal it. You make the Live Web relevant to people outside of browsers with KEA endpoints. The Live Web exists wherever programs working on behalf of users can raise events so that rules can run and respond.

In this chapter, you’ll explore endpoints that work with PubSubHubbub, with Web hooks, with email, with IRC, and in a microcontroller. Of course, this isn’t the extent of what KRL can be applied to—it is merely a sampling of what’s possible. Literally any occurrence on the Internet can be turned into a KEA event for processing by KRL.