MAGETWO-28256: Bundle Integration API Refactoring

    - Fixed REST API route

Author: Yu Tang

app/code/Magento/Bundle/etc/webapi.xml

@@ -13,7 +13,7 @@
             <resource ref="Magento_Catalog::products"/>
         </resources>
     </route>
-    <route url="/V1/bundle-products/:productSku/links" method="PUT">
+    <route url="/V1/bundle-products/:productSku/links/:id" method="PUT">
         <service class="Magento\Bundle\Api\ProductLinkManagementInterface" method="saveChild"/>
         <resources>
             <resource ref="Magento_Catalog::products"/>

dev/tests/api-functional/testsuite/Magento/Bundle/Api/ProductLinkManagementTest.php

@@ -111,12 +111,12 @@ public function testSaveChild()
      */
     private function saveChild($productSku, $linkedProduct)
     {
-        $resourcePath = self::RESOURCE_PATH . '/:productSku/links';
+        $resourcePath = self::RESOURCE_PATH . '/:productSku/links/:id';
         $serviceInfo = [
             'rest' => [
                 'resourcePath' => str_replace(
-                    [':productSku'],
-                    [$productSku],
+                    [':productSku', ':id'],
+                    [$productSku, $linkedProduct['id']],
                     $resourcePath
                 ),
                 'httpMethod' => \Magento\Framework\Webapi\Rest\Request::HTTP_METHOD_PUT,