Webservice - tax_rate in orders_detail

[delix]

Hello,

 

What should I modify to get as a return of call to webservice: /api/orders/?display=full

information with tax rate of product.

 

....

<order_row>

<id>4</id>

<product_id>8188101</product_id>

<product_attribute_id>0</product_attribute_id>

<product_quantity>1</product_quantity>

<product_name>Very GOOD Product</product_name>

<product_price>24.540000</product_price>

 

<tax_rate>8.00</tax_rate> <-- this one

<product_price_with_tax>26.50</product_price_with_tax> <-- or this one (or both) I need!!

 

</order_row>

....