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> IIRC implementing something like this had been discussed quite a while back.
> I think we discussed the possibility of using web hooks and a defined
> api/payload in place of the SNS/SQS type stuff. I don't think it ever made
> it to the backlog, but I'd be happy to discuss further design and maybe add
> a design session to the summit if you're unable to make it.

Thanks. As suggested, I've added a design session for this. 

http://summit.openstack.org/cfp/details/308