I'd like to get the parent URL for a simple product that is associated with a grouped product (the "parent") through the magento API.
This is how I do it inside the magento app:
<?php if($_product->getTypeId() == "simple"): ?>
<?php $parentIds = Mage::getModel('catalog/product_type_grouped')->getParentIdsByChild($_product->getId()); ?>
Now I need a call like this for the API, so I can get the grouped product URL (that has the simple product associated) when I input the "sku" of the simple product.