Count all AH Lots

[Narcane]

Hi!
Looking for a way to count all AH lots for current player.
Task is a figure out how much lots has a player in ProfessionBuddy profile.

I've try to get count by one Item ID, but without success:

<CustomAction Code="Log(&quot;HasDataStoreAddon: {0} &quot;,HasDataStoreAddon);" />
<CustomAction Code="Log(&quot;Obsidium Ore : {0} &quot;,OnAhCount(53038));" />

Any Idea?
Thanks.