It would be very beneficial for sites to be able to set up a callback upon any updates in the database.

An example would be:

• user has been assigned a new role
• new grade has been entered into gradebook
• user personal/contact information has been modified
• student's contract has been changed

It does not have to be a call, sites can simply set an endpoint for onProduct server to send an ICMP or a GET to notify that server that there's a change (doesn't need to contain any data).

This would be a solution to some sites that have to constantly bombard your API endpoints to get up-to-date information.