MC-34298: Introduce separate POST and PUT API for carts/mine/items

Author: engcom-Echo

app/code/Magento/Quote/Api/AddCartItemInterface.php

@@ -7,11 +7,6 @@
 
 namespace Magento\Quote\Api;
 
-use Magento\Framework\Exception\CouldNotSaveException;
-use Magento\Framework\Exception\InputException;
-use Magento\Framework\Exception\NoSuchEntityException;
-use Magento\Quote\Api\Data\CartItemInterface;
-
 /**
  * Interface AddCartItemInterface
  * @api
@@ -21,11 +16,11 @@ interface AddCartItemInterface
     /**
      * Add the specified cart item.
      *
-     * @param CartItemInterface $cartItem The item.
-     * @return CartItemInterface
-     * @throws NoSuchEntityException The specified cart does not exist.
-     * @throws CouldNotSaveException The specified item could not be saved to the cart.
-     * @throws InputException The specified item or cart is not valid.
+     * @param \Magento\Quote\Api\Data\CartItemInterface $cartItem The item.
+     * @return \Magento\Quote\Api\Data\CartItemInterface Item.
+     * @throws \Magento\Framework\Exception\NoSuchEntityException The specified cart does not exist.
+     * @throws \Magento\Framework\Exception\CouldNotSaveException The specified item could not be saved to the cart.
+     * @throws \Magento\Framework\Exception\InputException The specified item or cart is not valid.
      */
-    public function execute(CartItemInterface $cartItem);
+    public function execute(\Magento\Quote\Api\Data\CartItemInterface $cartItem);
 }

app/code/Magento/Quote/Api/UpdateCartItemInterface.php

@@ -7,11 +7,6 @@
 
 namespace Magento\Quote\Api;
 
-use Magento\Framework\Exception\CouldNotSaveException;
-use Magento\Framework\Exception\InputException;
-use Magento\Framework\Exception\NoSuchEntityException;
-use Magento\Quote\Api\Data\CartItemInterface;
-
 /**
  * Interface AddCartItemInterface
  * @api
@@ -21,11 +16,11 @@ interface UpdateCartItemInterface
     /**
      * Update the specified cart item.
      *
-     * @param CartItemInterface $cartItem The item.
-     * @return CartItemInterface Item.
-     * @throws NoSuchEntityException The specified cart does not exist.
-     * @throws CouldNotSaveException The specified item could not be saved to the cart.
-     * @throws InputException The specified item or cart is not valid.
+     * @param \Magento\Quote\Api\Data\CartItemInterface $cartItem The item.
+     * @return \Magento\Quote\Api\Data\CartItemInterface Item.
+     * @throws \Magento\Framework\Exception\NoSuchEntityException The specified cart does not exist.
+     * @throws \Magento\Framework\Exception\CouldNotSaveException The specified item could not be saved to the cart.
+     * @throws \Magento\Framework\Exception\InputException The specified item or cart is not valid.
      */
-    public function execute(CartItemInterface $cartItem);
+    public function execute(\Magento\Quote\Api\Data\CartItemInterface $cartItem);
 }

app/code/Magento/Quote/Model/Quote/Item/UpdateCartItem.php

@@ -7,13 +7,13 @@
 
 namespace Magento\Quote\Model\Quote\Item;
 
-use Magento\Quote\Api\AddCartItemInterface;
 use Magento\Quote\Api\Data\CartItemInterface;
+use Magento\Quote\Api\UpdateCartItemInterface;
 
 /**
  * Update the specified cart item
  */
-class UpdateCartItem implements AddCartItemInterface
+class UpdateCartItem implements UpdateCartItemInterface
 {
     /**
      * @var Repository