How to Add Magento 2 Configurable Products Programmatically to Cart

A quick method for developers who get bored to check the functionalities they implement! (including me 😉)

I was working on a module development task that required to check each and every feature with a simple product and configurable product. Each time repeating the process to select the options, add to cart, and checkout was not feasible.

Hence, I came up with a solution that allowed me to add Magento 2 configurable products programmatically to cart which reduced my tedious task!

Sharing the solution for my readers,

^{Steps to Add Magento 2 Configurable Products Programmatically to Cart:}

Create registration.php file in app\code\[Vendor]\[Namespace]\

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    '[Vendor]_[Namespace]',
    __DIR__
);

<?php

\Magento\Framework\Component\ComponentRegistrar::register(

\Magento\Framework\Component\ComponentRegistrar::MODULE,

'[Vendor]_[Namespace]',

__DIR__

);

2. Create module.xml file in app\code\[Vendor]\[Namespace]\etc

<?php
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="[Vendor]_[Namespace]" setup_version="1.0.0"/>
</config>

<?php

<?xml version="1.0"?>

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">

</config>

3. Create Data.php file in app\code\[Vendor]\[Namespace]\Helper

<?php
namespace [Vendor]\[namespace]\Helper;
 
use Magento\Framework\App\Helper\AbstractHelper;
use Magento\Framework\App\Helper\Context;
use Magento\Checkout\Model\Cart;
use Magento\Catalog\Model\ProductFactory;
 
class Data extends AbstractHelper
{
    private $cart;
    private $productFactory;
    public function __construct(Context $context, Cart $cart, ProductFactory $productFactory)
    {
 
        $this->productFactory = $productFactory;
        $this->cart = $cart;
        parent::__construct($context);
 
    }
 
    public function getAddConfigurableProduct($parentId, $childId)
    {
        $parent = $this->productFactory->load($parentId);
        $child = $this->productFactory->load($childId);
 
        $cart = $this->cart;
 
        $params = [];
        $params['product'] = $parent->getId();
        $params['qty'] = '1';
        $options = [];
 
        $productAttributeOptions = $parent->getTypeInstance(true)->getConfigurableAttributesAsArray($parent);
 
        foreach ($productAttributeOptions as $option) {
            $options[$option['attribute_id']] = $child->getData($option['attribute_code']);
        }
        $params['super_attribute'] = $options;
 
        /*Add product to cart */
        $cart->addProduct($parent, $params);
        $cart->save();
 
    }
}