Magento 2 How to send order email copy to custom email address with custom module when order placed, by custom observer and events.xml?

Question

I have one module where i can set email address in back end. When order placed i want to send that order email copy to my custom email address which is set in backend.

I want to add an observer when order placed and send email copy to my custom email address.

how can i achieve this functionality with custom module?

Thanks.

Answer 1

observer and event.xml sales_model_service_quote_submit_before

    /**
     * @var \Magento\Checkout\Model\Session
     */
    protected $_checkoutSession;
    public function __construct(
        \Magento\Checkout\Model\Session $checkoutSession
    )
    {
        $this->_checkoutSession = $checkoutSession;
    }
    /**
     * @param Observer $observer
     *
     * @return void
     */
    public function execute(Observer $observer)
    {
        $order = $observer->getEvent()->getOrder();
        $quote = $observer->getEvent()->getQuote();
        $this->_checkoutSession->setEmailCc($quote->getData(CustomFieldsInterface::CHECKOUT_EMAIL_CC));

    }

override plugin Magento\Sales\Model\Order\Email\Container\OrderIdentity

public function getEmailCopyTo()
    {

        $objectManager = \Magento\Framework\App\ObjectManager::getInstance();
        $currentEmailCc = $objectManager->get('Magento\Checkout\Model\Session');
        $emailCC = $currentEmailCc->getEmailCc();

        $data = $this->getConfigValue(self::XML_PATH_EMAIL_COPY_TO, $this->getStore()->getStoreId());

        $data2 = $data.','.$emailCC;

        if (!empty($data) && !empty($emailCC)) {
            return array_map('trim', explode(',', $data2));
        }
        if (empty($data) && !empty($emailCC)){
            return array_map('trim', explode(',', $emailCC));
        }
        if (!empty($data) && empty($emailCC) ){
            return array_map('trim', explode(',', $data));
        }
        if (empty($data) && empty($emailCC)) {
            return false;
        }

    }