The goal we're working toward is for the Notes home page to automatically update the list of notes as notes are edited or deleted. What we've done so far is to restructure the application startup so that Socket.IO is initialized in the Notes application. There's no change of behavior yet.
What we will do is send an event whenever a note is created, updated, or deleted. Any interested part of the Notes application can listen to those events and act appropriately. For example, the Notes home page router module can listen for events, and then send an update to the browser. The code in the web browser will listen for an event from the server, and in response, it would rewrite the home page. Likewise, when a Note is modified, a listener can send a message to the web browser with the new note content, or if the Note is deleted, a listener can send a message so that the web browser redirects to the home page.
These changes are required:
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