Magento2 - Alter the payment methods list in checkout #checkout #magento2 #plugin

di.xml

<?xml version="1.0"?>
<!-- MyNamespace\MyModule\etc\di.xml -->
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
    <type name="Magento\Checkout\Model\PaymentInformationManagement">
        <plugin sortOrder="1" name="MyNamespaceMyModulePaymentInformationManagement"
                type="MyNamespace\MyModule\Plugin\Model\PaymentInformationManagementPlugin"/>
    </type>
</config>

PaymentInformationManagementPlugin.php

<?php

namespace MyNamespace\MyModule\Plugin\Model;

class PaymentInformationManagementPlugin
{

  /**
   * Here is an example how you can alter the payment methods list in the checkout.
   * Remove free and checkmo payment methods in the checkout
   */
  public function afterGetPaymentInformation(\Magento\Checkout\Model\PaymentInformationManagement $subject, $result)
  {
        $paymentMethods = ['free','checkmo'];
        $currentPaymentMethods = $result->getPaymentMethods();
    
        foreach ($currentPaymentMethods as $key => $data) {
            if (!in_array($data->getCode(), $paymentMethods)) {
                unset($currentPaymentMethods[$key]);
            }
        }
    
        $result->setPaymentMethods($currentPaymentMethods);
        return $result;
  }
}