Magento 2 add to cart programmatically not working

Question

Here am have a custom api at that API call am trying to add a product to cart but am not getting it.

namespace Vendor\Cart\Model;
 use Magento\Framework\Data\Form\FormKey;
 use Vendor\Cart\Api\HelloInterface;
 use Magento\Framework\View\Result\PageFactory; 
 use Magento\Framework\Event\Observer;
 use Magento\Framework\Event\ObserverInterface;
 use Magento\Quote\Model\QuoteRepository;
 use Magento\Checkout\Model\Session as CheckoutSession;
class Hello implements HelloInterface
{
 protected $cart;
 protected $formKey;
 protected $request;
 protected $_wishlistRepository;
 protected $_productRepository;
 protected $_sellerCollection;
 public function __construct(
 \Magento\Checkout\Model\Cart $cart,
 FormKey $formKey,
 \Magento\Quote\Api\CartRepositoryInterface $quoteRepository,
 \Magento\Quote\Model\QuoteFactory $quoteFactory,
 \Magento\Catalog\Api\ProductRepositoryInterface $productRepository
 {
 $this->cart = $cart;
 $this->formKey = $formKey;
 $this->quoteRepository = $quoteRepository;
 $this->quoteFactory = $quoteFactory;
 $this->productRepository = $productRepository;
 }
 public function new(){
 $QuoteId=636;
 $quote = $this->quoteFactory->create()->load($QuoteId);
 $d = $quote->getData();
 $quoteId = $d['entity_id'];
 //*********************************** */
 $quote = $this->quoteRepository->get($QuoteId);
 $items = $quote->getAllItems();
 $params = array(
 'form_key' => $this->formKey->getFormKey(),
 'product' => 37,
 // 'sku' => 'SKU590003557',
 'quote_id' => $quoteId,
 'qty' => 1
 );
 $product = $this->productRepository->getById(37);
 /****************************************** */
 $this->cart->addProduct($product,$params);
 $this->cart->save();
 }
}

Where am doing wrong?. can i get help? Thank you in advance

• Dhara Bhatti: Can you please share any logs or error you got? because its working from my end.
• Ranganathan: Does the quote id 636 is assigned with frontend have you checked ? if not, display current quote id in cart page to verify.
• Praveen Negimani: "message": "Class TW\\Product\\Helper\\Data does not exist",,C:\\xampp\\htdocs\\hylosh\\vendor\\magento\\framework\\ObjectManager\\Definition\\Runtime.php(44): Magento\\Framework\\Code\\Reader\\ClassReader->getConstructor('Vendor\\\\...')\n#1 C:\\xampp\\htdocs\\hylosh\\vendor\\magento\\framework\\ObjectManager\\Factory\\Dynamic\\Developer.php(48):
• Praveen Negimani: @Ranganathan Quote id assigned by API call through postman
• Ranganathan: @PraveenNegimani then you need to assign this quote to frontend(checkoutsession) to check your cart - magento.stackexchange.com/questions/196548/…

Answer 1

Hope this will help you. I used the following code to add the product to current quote programmatically.

 $storeId = $this->_storemanager->getStore()->getId(); 
 $product_coll = $this->productRepository->getById($productId, false, $storeId);
 $params = array(
 'form_key' => $this->_formkey->getFormKey(),
 'product' => $productId, //product Id
 'qty' => $qty //quantity of product 
 ); 
 $this->_cart->addProduct($product_coll, $params);
 $this->_cart->save();

Let me know if you face any issue.

Answer 2

You can replace this code in your controller, FYI, No need to use cart Model in __construct().

/**
 * @var PageFactory
 */
protected $resultPageFactory;
/**
 * @var \Magento\Framework\Data\Form\FormKey
 */
protected $formKey;
/**
 * @param Context $context
 * @param PageFactory $resultPageFactory
 */
public function __construct(
 \Magento\Framework\App\Action\Context $context,
 \Magento\Framework\Data\Form\FormKey $formKey,
 \Magento\Framework\View\Result\PageFactory $resultPageFactory
) {
 parent::__construct($context);
 $this->formKey = $formKey;
 $this->resultPageFactory = $resultPageFactory;
}
/**
 *
 * @return \Magento\Framework\View\Result\Page
 */
public function execute()
{
 $resultPage = $this->resultPageFactory->create();
 $params = array(
 'form_key' => $this->formKey->getFormKey(),
 'product' =>12,//product Id
 'qty' =>1,//quantity of product
 'price' =>100 //product price
 );
 $this->_redirect("checkout/cart/add/form_key/", $params);
 /** @var \Magento\Framework\View\Result\Page $resultPage */
 return $resultPage;
}

• Rizwan Khan: how to add multiple items?

Answer 3

If you want minicart to be updated when you add product to cart by controller you need to add your controller to file section.xml like in Magento_Checkout module:

Magento/Checkout/etc/frontend/sections.xml

https://github.com/magento/magento2/issues/3287#issuecomment-179773861