Sometimes, Magento 2 store admin needs to prefill the shopping cart with a product whenever a user lands to the website. There are many uses of this functionality; for example, the admin may require to add a virtual product to cart whenever a particular product is added to the cart by a customer, the admin may want to give away the free product by default, the admin requires to integrate a custom system or he may require to send visitors directly to the checkout with the product in the cart.<\/p>\n\n\n\n
Default Magento 2 doesn\u2019t allow this. So, I\u2019ve come up with a method to programmatically add product to cart in Magento 2.<\/p>\n\n\n\n
<?php\nnamespace Vendor\\Extension\\Controller\\Index;\nuse Magento\\Framework\\App\\Action\\Action;\nuse Magento\\Framework\\App\\Action\\Context;\nuse Magento\\Framework\\Data\\Form\\FormKey;\nuse Magento\\Checkout\\Model\\Cart;\nuse Magento\\Catalog\\Model\\Product;\nclass Post extends Action\n{\n protected $formKey; \n protected $cart;\n protected $product;\n public function __construct(\n Context $context,\n FormKey $formKey,\n Cart $cart,\n Product $product) {\n $this->formKey = $formKey;\n $this->cart = $cart;\n $this->product = $product; \n parent::__construct($context);\n }\n public function execute()\n { \n $productId =10;\n $params = array(\n 'form_key' => $this->formKey->getFormKey(),\n 'product' => $productId, \n 'qty' =>1\n ); \n $product = $this->product->load($productId); \n $this->cart->addProduct($product, $params);\n $this->cart->save();\n }\n}<\/pre>\n\n\n\nRun the above code and your task is done in a blink of an eye!<\/p>\n\n\n\n