/**
* Retrieve params for adding product to wishlist
*
* @param \Magento\Catalog\Model\Product|\Magento\Wishlist\Model\Item $item
* @param array $params
* @return string
*/
public function getAddParams($item, array $params = array())
{
$productId = null;
if ($item instanceof \Magento\Catalog\Model\Product) {
$productId = $item->getEntityId();
}
if ($item instanceof \Magento\Wishlist\Model\Item) {
$productId = $item->getProductId();
}
$url = $this->_getUrlStore($item)->getUrl('wishlist/index/add');
if ($productId) {
$params['product'] = $productId;
}
return $this->_postDataHelper->getPostData($url, $params);
}