WoW Feature Request: GetItem with item level

If I make a item call I get only the Base verison. How a get Informations about higher versions of this Item?
for example:

/data/wow/item/{itemId}?level=197
/data/wow/item/{itemId}

The Item call should give a list of possible item levels and than I can call for a spectial version of this item like this

/data/wow/item/{itemId}/{ilevel}
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