Reset occ cookie on customer login

Author: Patrick McLain

Observer/CustomerAuthenticated.php

@@ -0,0 +1,47 @@
+<?php
+
+namespace Pmclain\OneClickCheckout\Observer;
+
+use Magento\Framework\Event\Observer;
+use Magento\Framework\Event\ObserverInterface;
+use Magento\Framework\Stdlib\CookieManagerInterface;
+use Magento\Framework\Stdlib\Cookie\CookieMetadataFactory;
+use Magento\Framework\Session\SessionManagerInterface;
+
+class CustomerAuthenticated implements ObserverInterface
+{
+    /**
+     * @var CookieManagerInterface
+     */
+    private $cookieManager;
+
+    /**
+     * @var CookieMetadataFactory
+     */
+    private $cookieMetaDataFactory;
+
+    /**
+     * @var SessionManagerInterface
+     */
+    private $sessionManager;
+
+    public function __construct(
+        CookieManagerInterface $cookieManager,
+        CookieMetadataFactory $cookieMetadataFactory,
+        SessionManagerInterface $sessionManager
+    ) {
+        $this->cookieManager = $cookieManager;
+        $this->cookieMetaDataFactory = $cookieMetadataFactory;
+        $this->sessionManager = $sessionManager;
+    }
+
+    public function execute(Observer $observer)
+    {
+        $this->cookieManager->deleteCookie(
+            'occ_status',
+            $this->cookieMetaDataFactory->createCookieMetadata()
+                ->setPath($this->sessionManager->getCookiePath())
+                ->setDomain($this->sessionManager->getCookieDomain())
+        );
+    }
+}

etc/frontend/events.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0"?>
+<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
+    <event name="customer_customer_authenticated">
+        <observer name="pmclain_occ" instance="Pmclain\OneClickCheckout\Observer\CustomerAuthenticated" />
+    </event>
+</config>