Magento 2: How to add option values to product attributes programmatically

In today’s blog, we are showing how to add option values to product attributes programmatically in Magento 2.

....
protected $_attributeRepository;
protected $_attributeOptionManagement;
protected $_option;
protected $_attributeOptionLabel;
....

public function __construct(
    .......

   \Magento\Eav\Model\AttributeRepository $attributeRepository,
   \Magento\Eav\Api\AttributeOptionManagementInterface $attributeOptionManagement,
   \Magento\Eav\Api\Data\AttributeOptionLabelInterface $attributeOptionLabel,
   \Magento\Eav\Model\Entity\Attribute\Option $option,

   ..........

) {
	.....
  $this->_attributeRepository = $attributeRepository;
  $this->_attributeOptionManagement = $attributeOptionManagement;
  $this->_option = $option;
  $this->_attributeOptionLabel = $attributeOptionLabel;
  .....
}

public function addAttributeOptionValue() {
  $attribute_id = $this->_attributeRepository->get('catalog_product', 'product_brand')->getAttributeId();
  $name = "Your First Value";

  /* new attribute option */
  $this->_option->setValue($name);
  $this->_attributeOptionLabel->setStoreId(0);
  $this->_attributeOptionLabel->setLabel($name);
  $this->_option->setLabel($this->_attributeOptionLabel->getLabel());
  $this->_option->setSortOrder(0);
  $this->_option->setIsDefault(false);
  $optionAdded = $this->_attributeOptionManagement->add('catalog_product', $attribute_id, $this->_option);
                
}

Hope this helps!