saleor: preliminary signup process

framework/saleor/auth/use-signup.tsx

@@ -4,7 +4,7 @@ import { CommerceError, ValidationError } from '@commerce/utils/errors'
 import useSignup, { UseSignup } from '@commerce/auth/use-signup'
 import useCustomer from '../customer/use-customer'
 import {
-  CustomerCreateInput,
+  CustomerCreate,
   Mutation,
   MutationCustomerCreateArgs,
 } from '../schema'
@@ -17,17 +17,26 @@ export default useSignup as UseSignup<typeof handler>
 export const handler: MutationHook<
   null,
   {},
-  CustomerCreateInput,
-  CustomerCreateInput
+  CustomerCreate,
+  CustomerCreate
 > = {
   fetchOptions: {
     query: customerCreateMutation,
   },
   async fetcher({
-    input: { firstName, lastName, email, password },
+    input: { user },
     options,
     fetch,
   }) {
+    if (!user) {
+      throw new CommerceError({
+        message:
+          'A first name, last name, email and password are required to signup',
+      })
+    }
+
+    const { firstName, lastName, email, password } = user;
+
     if (!(firstName && lastName && email && password)) {
       throw new CommerceError({
         message:
@@ -50,7 +59,7 @@ export const handler: MutationHook<
       },
     })
 
-    throwUserErrors(customerCreate?.customerUserErrors)
+    throwUserErrors(customerCreate?.errors)
     await handleAutomaticLogin(fetch, { email, password })
 
     return null