Glue API - Checkout feature integration

<?php

namespace Pyz\Glue\CheckoutRestApi;

use Spryker\Glue\CheckoutRestApi\CheckoutRestApiConfig as SprykerCheckoutRestApiConfig;

class CheckoutRestApiConfig extends SprykerCheckoutRestApiConfig
{
    protected const PAYMENT_METHOD_REQUIRED_FIELDS = [
        'dummyPaymentInvoice' => ['dummyPaymentInvoice.dateOfBirth'],
        'dummyPaymentCreditCard' => [
            'dummyPaymentCreditCard.cardType',
            'dummyPaymentCreditCard.cardNumber',
            'dummyPaymentCreditCard.nameOnCard',
            'dummyPaymentCreditCard.cardExpiresMonth',
            'dummyPaymentCreditCard.cardExpiresYear',
            'dummyPaymentCreditCard.cardSecurityCode',
        ],
    ];

    /**
     * @uses \Spryker\Shared\DummyPayment\DummyPaymentConfig::PROVIDER_NAME
     */
    protected const DUMMY_PAYMENT_PROVIDER_NAME = 'DummyPayment';

    /**
     * @uses \Spryker\Shared\DummyPayment\DummyPaymentConfig::PAYMENT_METHOD_NAME_INVOICE
     */
    protected const DUMMY_PAYMENT_PAYMENT_METHOD_NAME_INVOICE = 'Invoice';

    /**
     * @uses \Spryker\Shared\DummyPayment\DummyPaymentConfig::PAYMENT_METHOD_NAME_CREDIT_CARD
     */
    protected const DUMMY_PAYMENT_PAYMENT_METHOD_NAME_CREDIT_CARD = 'Credit Card';

    /**
     * @uses \Spryker\Shared\DummyPayment\DummyPaymentConfig::PAYMENT_METHOD_INVOICE
     */
    protected const PAYMENT_METHOD_INVOICE = 'dummyPaymentInvoice';

    /**
     * @uses \Spryker\Shared\DummyPayment\DummyPaymentConfig::PAYMENT_METHOD_CREDIT_CARD
     */
    protected const PAYMENT_METHOD_CREDIT_CARD = 'dummyPaymentCreditCard';

    protected const IS_PAYMENT_PROVIDER_METHOD_TO_STATE_MACHINE_MAPPING_ENABLED = false;

    /**
     * @return array
     */
    public function getPaymentProviderMethodToStateMachineMapping(): array
    {
        return [
            static::DUMMY_PAYMENT_PROVIDER_NAME => [
                static::DUMMY_PAYMENT_PAYMENT_METHOD_NAME_CREDIT_CARD => static::PAYMENT_METHOD_CREDIT_CARD,
                static::DUMMY_PAYMENT_PAYMENT_METHOD_NAME_INVOICE => static::PAYMENT_METHOD_INVOICE,
            ],
        ];
    }

    /**
     * @return bool
     */
    public function isShipmentMethodsMappedToAttributes(): bool
    {
        return false;
    }

    /**
     * @return bool
     */
    public function isPaymentProvidersMappedToAttributes(): bool
    {
        return false;
    }

    /**
     * @return bool
     */
    public function isAddressesMappedToAttributes(): bool
    {
        return false;
    }
}

<?php

namespace Pyz\Glue\GlueApplication;

use Spryker\Glue\CheckoutRestApi\CheckoutRestApiConfig;
use Spryker\Glue\CheckoutRestApi\Plugin\GlueApplication\CheckoutDataResourcePlugin;
use Spryker\Glue\CheckoutRestApi\Plugin\GlueApplication\CheckoutResourcePlugin;
use Spryker\Glue\GlueApplication\GlueApplicationDependencyProvider as SprykerGlueApplicationDependencyProvider;
use Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceRelationshipCollectionInterface;
use Spryker\Glue\OrderPaymentsRestApi\Plugin\OrderPaymentsResourceRoutePlugin;
use Spryker\Glue\OrdersRestApi\Plugin\OrderRelationshipByOrderReferencePlugin;

class GlueApplicationDependencyProvider extends SprykerGlueApplicationDependencyProvider
{
    /**
     * @return \Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceRoutePluginInterface[]
     */
    protected function getResourceRoutePlugins(): array
    {
        return [
            new OrderPaymentsResourceRoutePlugin(),
            new CheckoutDataResourcePlugin(),
            new CheckoutResourcePlugin(),
        ];
    }

    /**
     * @param \Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceRelationshipCollectionInterface $resourceRelationshipCollection
     *
     * @return \Spryker\Glue\GlueApplicationExtension\Dependency\Plugin\ResourceRelationshipCollectionInterface
     */
    protected function getResourceRelationshipPlugins(
        ResourceRelationshipCollectionInterface $resourceRelationshipCollection
    ): ResourceRelationshipCollectionInterface {
        $resourceRelationshipCollection->addRelationship(
            CheckoutRestApiConfig::RESOURCE_CHECKOUT,
            new OrderRelationshipByOrderReferencePlugin()
        );

        return $resourceRelationshipCollection;
    }
}