Orsdxy

I have customized for applying the reward points from a third party Capillary.
I want to update the cart total and display by deducting from the reward points after the response from the curl. I have updated the quote in a controller by the code.

protected $cart;

protected $cartHelper;

protected $_customerSession;

protected $_scopeConfig;

protected $_objectManager;

protected $_checkoutSession;

protected $_quoteRepository;

protected $_priceCurrency;



public $fieldId = ["capillary_enable", "capillary_url", "capillary_user", "capillary_password"];

public function __construct(

    MagentoFrameworkAppActionContext $context,

    MagentoCustomerModelSession $customerSession,

    MagentoCheckoutModelCart $cart,

    MagentoCheckoutHelperCart $cartHelper,

    MagentoFrameworkObjectManagerInterface $objectmanager,

    MagentoFrameworkAppConfigScopeConfigInterface $scopeConfig,

    MagentoCheckoutModelSession $checkoutSession,

    MagentoQuoteApiCartRepositoryInterface $quoteRepository,

    MagentoFrameworkViewResultPageFactory $resultPageFactory,

    MagentoFrameworkPricingPriceCurrencyInterface $priceCurrency,

    MagentoFrameworkMessageManagerInterface $messageManager

) {

    $this->_customerSession = $customerSession;

    $this->_scopeConfig = $scopeConfig;

    $this->_objectManager = $objectmanager;

    $this->_priceCurrency = $priceCurrency;

    $this->_checkoutSession = $checkoutSession;

    $this->_quoteRepository = $quoteRepository;

    $this->cart = $cart;

    $this->resultPageFactory = $resultPageFactory;

    $this->cartHelper = $cartHelper;

    $this->messageManager = $messageManager;

    return parent::__construct($context);

}



public function updateCartPrice() {



    $quote = $this->cart->getQuote();        

    $quoteid = $quote->getId();

    $discountAmount = 4;

    $label = "Redeemed Points";    

    $total=$quote->getBaseSubtotal();



    $canAddItems = $quote->isVirtual() ? ('billing') : ('shipping');     



    foreach ($quote->getAllAddresses() as $address) {

        if ($address->getAddressType() == $canAddItems) {



            $address->setSubtotalWithDiscount((float) $address->getSubtotalWithDiscount() - $discountAmount);

            $address->setBaseSubtotalWithDiscount((float) $address->getBaseSubtotalWithDiscount() - $discountAmount);



            $address->setGrandTotal((float) $address->getGrandTotal() - $discountAmount);

            $address->setBaseGrandTotal((float) $address->getBaseGrandTotal() - $discountAmount);



            if ($address->getDiscountDescription()) {

                $address->setDiscountDescription($address->getDiscountDescription() . ', ' . $label);

                $address->setDiscountAmount(-((float)$address->getDiscountAmount() + $discountAmount));

                $address->setBaseDiscountAmount(-((float)$address->getDiscountAmount() + $discountAmount));

            } else {

                $address->setDiscountDescription($label);



                $address->setDiscountAmount(-($discountAmount));

                $address->setBaseDiscountAmount(-($discountAmount));

            }

            $address->save();

        }

    }

    foreach($quote->getAllItems() as $item){



        $rat=$item->getPriceInclTax()/$total;

        $ratdisc=$discountAmount*$rat;

        $item->setDiscountAmount(($item->getDiscountAmount()+$ratdisc) * $item->getQty());

        $item->setBaseDiscountAmount(($item->getBaseDiscountAmount()+$ratdisc) * $item->getQty())->save();



    }



    $quote->setSubtotalWithDiscount((float) $quote->getSubtotalWithDiscount() - $discountAmount);

    $quote->setBaseSubtotalWithDiscount((float) $quote->getBaseSubtotalWithDiscount() - $discountAmount);

    $quote->setGrandTotal((float) $quote->getGrandTotal() - $discountAmount);

    $quote->setBaseGrandTotal((float) $quote->getBaseGrandTotal() - $discountAmount);





    $quote->setTotalsCollectedFlag(true)->collectTotals()->save();

    $quote->save();



    $this->_checkoutSession->getQuote()->collectTotals()->save();

 }

This is affected in the database.but after refreshing the updated value is coming for the first time and after the api call of

/V1/carts/mine/totals-information

its reverting back to the old details of quote and reflecting in the cart total summary ui. kindly help on this.