module Exception when trying to evaluate real time messaging

[mmills]

I'm trying to evaluate the messaging api. I've downloaded the 3.1 trial. I'm getting the following error when trying to call Messaging.subscribe on the client:


Attempt to use Messaging APIs without the optional Realtime Messaging module. Verify that your license includes this optional module and that you have included the necessary client and server-side components in your project.


Is there some special configuration I need to do or is that disabled for evaluation?


Also, is it reasonable to set up a very short term topic. For example, if there's a long running job (a few minutes to a few hours) does it make sense to set up a topic just for that job and then tear it down once the job is complete?

[Isomorphic]

See the OptionalModules overview for the <inherits> to add.

Generally we don't recommend using Realtime Messaging, or any Comet-based solution, unless you have actual Realtime requirements. Polling makes more sense if the notification doesn't need to be any quicker than say, 5 seconds.

[mmills]

Thanks for the quick reply. 5 second updates is more that fast enough. I'll move to a polling approach.