hook or callback for CloudStack API

[Alireza Eskandari]

Hi,
I'm looking for a solution to implement hooks or callbacks for CloudStack
API.
For example execute an script when user calls deployVirtualMachine API.
This script could be executed right after user submit his request or after
the request completed successfully or failed.
Maybe some API management solution could help me but the problem is
understanding CS asyncjobs and their status.
Thanks