Add a link to the cart to the success message when adding a product

Author: avstudnitz

app/code/Magento/Checkout/Controller/Cart/Add.php

@@ -122,11 +122,14 @@ public function execute()
 
             if (!$this->_checkoutSession->getNoCartRedirect(true)) {
                 if (!$this->cart->getQuote()->getHasError()) {
-                    $message = __(
-                        'You added %1 to your shopping cart.',
-                        $product->getName()
+                    $this->messageManager->addComplexSuccessMessage(
+                        'addCartSuccessMessage',
+                        [
+                            'product_name' => $product->getName(),
+                            'cart_url' => $this->getCartUrl(),
+                        ]
                     );
-                    $this->messageManager->addSuccessMessage($message);
+
                 }
                 return $this->goBack(null, $product);
             }
@@ -147,8 +150,7 @@ public function execute()
             $url = $this->_checkoutSession->getRedirectUrl(true);
 
             if (!$url) {
-                $cartUrl = $this->_objectManager->get(\Magento\Checkout\Helper\Cart::class)->getCartUrl();
-                $url = $this->_redirect->getRedirectUrl($cartUrl);
+                $url = $this->_redirect->getRedirectUrl($this->getCartUrl());
             }
 
             return $this->goBack($url);
@@ -188,4 +190,12 @@ protected function goBack($backUrl = null, $product = null)
             $this->_objectManager->get(\Magento\Framework\Json\Helper\Data::class)->jsonEncode($result)
         );
     }
+
+    /**
+     * @return string
+     */
+    private function getCartUrl()
+    {
+        return $this->_url->getUrl('checkout/cart', ['_secure' => true]);
+    }
 }

app/code/Magento/Checkout/etc/frontend/di.xml

@@ -83,4 +83,16 @@
             </argument>
         </arguments>
     </type>
+    <type name="Magento\Framework\View\Element\Message\MessageConfigurationsPool">
+        <arguments>
+            <argument name="configurationsMap" xsi:type="array">
+                <item name="addCartSuccessMessage" xsi:type="array">
+                    <item name="renderer" xsi:type="const">\Magento\Framework\View\Element\Message\Renderer\BlockRenderer::CODE</item>
+                    <item name="data" xsi:type="array">
+                        <item name="template" xsi:type="string">Magento_Checkout::messages/addCartSuccessMessage.phtml</item>
+                    </item>
+                </item>
+            </argument>
+        </arguments>
+    </type>
 </config>

app/code/Magento/Checkout/view/frontend/templates/messages/addCartSuccessMessage.phtml

@@ -0,0 +1,14 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+// @codingStandardsIgnoreFile
+/** @var \Magento\Framework\View\Element\Template $block */
+?>
+
+<?= $block->escapeHtml(__(
+    'You added %1 to your <a href="%2">shopping cart</a>.',
+    $block->getData('product_name'),
+    $block->getData('cart_url')
+), ['a']);