How would I create an asynchronous notification system using RESTful web services?

Question

I have a Java application which I make available via RESTful web services. I want to create a mechanism so clients can register for notifications of events. The rub is that th

Answer 1

We have this problem and need low-latency asynchronous updates to relatively few listeners. Our two alternative solutions have been:

1. Polling: Hammer the list of resources you need with GET requests
2. Streaming event updates: Provide a monitor resource. The server keeps the connection open. As events occur, the server transmits a stream of event descriptions using multipart content-type or chunked transfer-encoding.