Initial work, copied from the Shopify provider

framework/saleor/utils/customer-token.ts

@@ -0,0 +1,20 @@
+import Cookies, { CookieAttributes } from 'js-cookie'
+
+export const getCustomerToken = () => Cookies.get('saleorAccessToken')
+
+export const setCustomerToken = (
+  token: string | null,
+  options?: CookieAttributes
+) => {
+  if (!token) {
+    Cookies.remove('saleorAccessToken')
+  } else {
+    Cookies.set(
+      'saleorAccessToken',
+      token,
+      options ?? {
+        expires: 60 * 60 * 24 * 30,
+      }
+    )
+  }
+}