Add extension point for Quote Address.

Author: swnsma

app/code/Magento/QuoteGraphQl/Model/Cart/GetShippingAddress.php

@@ -0,0 +1,66 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\QuoteGraphQl\Model\Cart;
+
+use Magento\Framework\GraphQl\Exception\GraphQlAuthorizationException;
+use Magento\GraphQl\Model\Query\ContextInterface;
+use Magento\Framework\GraphQl\Exception\GraphQlInputException;
+use Magento\Framework\GraphQl\Exception\GraphQlNoSuchEntityException;
+use Magento\Quote\Model\Quote\Address;
+
+/**
+ * Get shipping address
+ */
+class GetShippingAddress
+{
+    /**
+     * @var QuoteAddressFactory
+     */
+    private $quoteAddressFactory;
+
+    /**
+     * @param QuoteAddressFactory $quoteAddressFactory
+     */
+    public function __construct(QuoteAddressFactory $quoteAddressFactory)
+    {
+        $this->quoteAddressFactory = $quoteAddressFactory;
+    }
+
+    /**
+     * @param ContextInterface $context
+     * @param array $shippingAddressInput
+     * @return Address
+     * @throws GraphQlAuthorizationException
+     * @throws GraphQlInputException
+     * @throws GraphQlNoSuchEntityException
+     */
+    public function execute(ContextInterface $context, array $shippingAddressInput)
+    {
+        $customerAddressId = $shippingAddressInput['customer_address_id'] ?? null;
+
+        $addressInput = $shippingAddressInput['address'];
+        if ($addressInput) {
+            $addressInput['customer_notes'] = $shippingAddressInput['customer_notes'] ?? '';
+        }
+
+        if (null === $customerAddressId) {
+            $shippingAddress = $this->quoteAddressFactory->createBasedOnInputData($addressInput);
+        } else {
+            if (false === $context->getExtensionAttributes()->getIsCustomer()) {
+                throw new GraphQlAuthorizationException(__('The current customer isn\'t authorized.'));
+            }
+
+            $shippingAddress = $this->quoteAddressFactory->createBasedOnCustomerAddress(
+                (int)$customerAddressId,
+                $context->getUserId()
+            );
+        }
+
+        return $shippingAddress;
+    }
+}

app/code/Magento/QuoteGraphQl/Model/Cart/SetShippingAddressesOnCart.php

@@ -17,26 +17,25 @@
  */
 class SetShippingAddressesOnCart implements SetShippingAddressesOnCartInterface
 {
-    /**
-     * @var QuoteAddressFactory
-     */
-    private $quoteAddressFactory;
-
     /**
      * @var AssignShippingAddressToCart
      */
     private $assignShippingAddressToCart;
+    /**
+     * @var GetShippingAddress
+     */
+    private $getShippingAddress;
 
     /**
-     * @param QuoteAddressFactory $quoteAddressFactory
      * @param AssignShippingAddressToCart $assignShippingAddressToCart
+     * @param GetShippingAddress $getShippingAddress
      */
     public function __construct(
-        QuoteAddressFactory $quoteAddressFactory,
-        AssignShippingAddressToCart $assignShippingAddressToCart
+        AssignShippingAddressToCart $assignShippingAddressToCart,
+        GetShippingAddress $getShippingAddress
     ) {
-        $this->quoteAddressFactory = $quoteAddressFactory;
         $this->assignShippingAddressToCart = $assignShippingAddressToCart;
+        $this->getShippingAddress = $getShippingAddress;
     }
 
     /**
@@ -53,10 +52,6 @@ public function execute(ContextInterface $context, CartInterface $cart, array $s
         $customerAddressId = $shippingAddressInput['customer_address_id'] ?? null;
         $addressInput = $shippingAddressInput['address'] ?? null;
 
-        if ($addressInput) {
-            $addressInput['customer_notes'] = $shippingAddressInput['customer_notes'] ?? '';
-        }
-
         if (null === $customerAddressId && null === $addressInput) {
             throw new GraphQlInputException(
                 __('The shipping address must contain either "customer_address_id" or "address".')
@@ -69,18 +64,7 @@ public function execute(ContextInterface $context, CartInterface $cart, array $s
             );
         }
 
-        if (null === $customerAddressId) {
-            $shippingAddress = $this->quoteAddressFactory->createBasedOnInputData($addressInput);
-        } else {
-            if (false === $context->getExtensionAttributes()->getIsCustomer()) {
-                throw new GraphQlAuthorizationException(__('The current customer isn\'t authorized.'));
-            }
-
-            $shippingAddress = $this->quoteAddressFactory->createBasedOnCustomerAddress(
-                (int)$customerAddressId,
-                $context->getUserId()
-            );
-        }
+        $shippingAddress = $this->getShippingAddress->execute($context, $shippingAddressInput);
 
         $this->assignShippingAddressToCart->execute($cart, $shippingAddress);
     }