Add ordercloud provider (#500)

* Add ordercloud provider

* Fix provider errors

* Make submit checkout optional

* Make submit checkout optional

* Remove nullables when creating endpoint type

* Update readme

* Log checkout error

* Log error

* Save token to cookie

* Update fetch rest

* Use token at checkout

Co-authored-by: Luis Alvarez <luis@vercel.com>

framework/ordercloud/customer/address/use-add-item.tsx

@@ -0,0 +1,38 @@
+import type { AddItemHook } from '@commerce/types/customer/address'
+import type { MutationHook } from '@commerce/utils/types'
+
+import { useCallback } from 'react'
+import useAddItem, { UseAddItem } from '@commerce/customer/address/use-add-item'
+import useAddresses from './use-addresses'
+
+export default useAddItem as UseAddItem<typeof handler>
+
+export const handler: MutationHook<AddItemHook> = {
+  fetchOptions: {
+    url: '/api/customer/address',
+    method: 'POST',
+  },
+  async fetcher({ input: item, options, fetch }) {
+    const data = await fetch({
+      ...options,
+      body: { item },
+    })
+
+    return data
+  },
+  useHook: ({ fetch }) =>
+    function useHook() {
+      const { mutate } = useAddresses()
+
+      return useCallback(
+        async function addItem(input) {
+          const data = await fetch({ input })
+
+          await mutate([data], false)
+
+          return data
+        },
+        [fetch, mutate]
+      )
+    },
+}