From 1d7365bc38e59ed5b90c11c0c40d259be3f1b36f Mon Sep 17 00:00:00 2001
From: Luis Alvarez <luis@vercel.com>
Date: Thu, 22 Oct 2020 18:44:35 -0500
Subject: [PATCH] Updated logout API to remove the cookie

---
 lib/bigcommerce/api/customers/handlers/logout.ts | 7 +++++++
 lib/bigcommerce/api/index.ts                     | 5 ++++-
 lib/commerce/api/index.ts                        | 1 +
 3 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/lib/bigcommerce/api/customers/handlers/logout.ts b/lib/bigcommerce/api/customers/handlers/logout.ts
index 9446262e2..937ce0954 100644
--- a/lib/bigcommerce/api/customers/handlers/logout.ts
+++ b/lib/bigcommerce/api/customers/handlers/logout.ts
@@ -1,3 +1,4 @@
+import { serialize } from 'cookie'
 import { LogoutHandlers } from '../logout'
 
 const logoutHandler: LogoutHandlers['logout'] = async ({
@@ -5,6 +6,12 @@ const logoutHandler: LogoutHandlers['logout'] = async ({
   body: { redirectTo },
   config,
 }) => {
+  // Remove the cookie
+  res.setHeader(
+    'Set-Cookie',
+    serialize(config.customerCookie, '', { maxAge: -1, path: '/' })
+  )
+
   // Only allow redirects to a relative URL
   if (redirectTo?.startsWith('/')) {
     res.redirect(redirectTo)
diff --git a/lib/bigcommerce/api/index.ts b/lib/bigcommerce/api/index.ts
index 69e26f523..1ab33756c 100644
--- a/lib/bigcommerce/api/index.ts
+++ b/lib/bigcommerce/api/index.ts
@@ -66,9 +66,12 @@ if (!(STORE_API_URL && STORE_API_TOKEN && STORE_API_CLIENT_ID)) {
 export class Config {
   private config: BigcommerceConfig
 
-  constructor(config: BigcommerceConfigOptions) {
+  constructor(config: Omit<BigcommerceConfigOptions, 'customerCookie'>) {
     this.config = {
       ...config,
+      // The customerCookie is not customizable for now, BC sets the cookie and it's
+      // not important to rename it
+      customerCookie: 'SHOP_TOKEN',
       imageVariables: this.getImageVariables(config.images),
     }
   }
diff --git a/lib/commerce/api/index.ts b/lib/commerce/api/index.ts
index db55e1daa..ae1e3f46b 100644
--- a/lib/commerce/api/index.ts
+++ b/lib/commerce/api/index.ts
@@ -3,6 +3,7 @@ export interface CommerceAPIConfig {
   apiToken: string
   cartCookie: string
   cartCookieMaxAge: number
+  customerCookie: string
   fetch<Data = any, Variables = any>(
     query: string,
     queryData?: CommerceAPIFetchOptions<Variables>,