This is a sample Lift application that shows one way to use Comet Actors to update 
the UI only when there is new information coming through a REST interface.

It uses named actors, actor dispatchers and the REST support that comes with Lift

To use it do:

git clone git://github.com/fmpwizard/comet_rest_example.git
cd comet_rest_example
sbt
update
jetty-run

Go with the browser to:

http://127.0.0.1:8080/browser-details/2.4.0.1090

On another terminal screen do:

cd comet_rest_example

while true;
  do curl   http://127.0.0.1:8080/v1/rest/browsertests/id2  -H"Content-Type: application/json"  -T json1.txt ;
  sleep 1;
  curl   http://127.0.0.1:8080/v1/rest/browsertests/id2  -H"Content-Type: application/json"  -T json2.txt ;
  sleep 1;
  curl   http://127.0.0.1:8080/v1/rest/browsertests/id2  -H"Content-Type: application/json"  -T json3.txt ;
  sleep 1 ;
  curl   http://127.0.0.1:8080/v1/rest/browsertests/id2  -H"Content-Type: application/json"  -T json4.txt ;
done;


And go to the browser and notice how just two cells change values.

Enjoy and feel free to send feedback on:
* The lift mailing list <liftweb@googlegroups.com>
* diego@fmpwizard.com (I use gmail so don't bother sending spam :) )
* on my blog at http://fmpwizard-scala.posterous.com/