MAGETWO-93424: Permanent Redirect for old URL missing via API or no documentation

Author: yelahin-serhiy

app/code/Magento/CatalogUrlRewrite/Plugin/Webapi/Controller/Rest/InputParamsResolver.php

@@ -9,6 +9,7 @@
 namespace Magento\CatalogUrlRewrite\Plugin\Webapi\Controller\Rest;
 
 use Magento\Catalog\Api\ProductRepositoryInterface;
+use Magento\Catalog\Model\Product;
 use Magento\Framework\Webapi\Rest\Request as RestRequest;
 use Magento\Webapi\Controller\Rest\InputParamsResolver as InputParamsResolverController;
 
@@ -52,7 +53,7 @@ public function afterResolve(InputParamsResolverController $subject, array $resu
             foreach ($requestBodyParams['product']['custom_attributes'] as $attribute) {
                 if ($attribute['attribute_code'] === 'save_rewrites_history') {
                     foreach ($result as $resultItem) {
-                        if ($resultItem instanceof \Magento\Catalog\Model\Product) {
+                        if ($resultItem instanceof Product) {
                             $resultItem->setData('save_rewrites_history', (bool)$attribute['value']);
                             break 2;
                         }

app/code/Magento/CatalogUrlRewrite/Test/Unit/Plugin/Webapi/Controller/Rest/InputParamsResolverTest.php

@@ -107,11 +107,9 @@ protected function setUp()
 
     public function testAfterResolve()
     {
-        $this->route->expects($this->once())
-            ->method('getServiceClass')
+        $this->route->method('getServiceClass')
             ->willReturn(ProductRepositoryInterface::class);
-        $this->route->expects($this->once())
-            ->method('getServiceMethod')
+        $this->route->method('getServiceMethod')
             ->willReturn('save');
         $this->product->expects($this->once())
             ->method('setData')