Event Based interaction style in REST

Question

I am currently struggling with a design issue involving REST. The application I am designing has a requirement to send out events and also support pub/sub style of interaction.

Answer 1

I don't see a reason why RESTful interfaces should not support events.

It will have to be done through polling, mind you; and that would be true even if you were to use SOAP instead.

While your web servers should definitely remain stateless, you probably do have a DB somewhere on the back end. You can use this DB to handle subscriptions to events by adding a subscription table.