Create iApp who use LTM policy

The hardest part about Local Traffic Policies is creating them using TMSH, which you would have to do in an iApp. (The syntax is quite long.) Might I suggest that you create the Local Traffic Policy you wish to model in the iApp using the Configuration utility (GUI) first, then list it from TMSH to see what it's configuration looks like. You can use that information to then construct the TMSH command within your iApp.