Moved create customer API to signup method

lib/bigcommerce/api/customers/signup.ts

@@ -0,0 +1,50 @@
+import createApiHandler, {
+  BigcommerceApiHandler,
+  BigcommerceHandler,
+} from '../utils/create-api-handler'
+import isAllowedMethod from '../utils/is-allowed-method'
+import { BigcommerceApiError } from '../utils/errors'
+import signup from './handlers/signup'
+
+export type SignupBody = {
+  firstName: string
+  lastName: string
+  email: string
+  password: string
+}
+
+export type SignupHandlers = {
+  signup: BigcommerceHandler<null, { cartId?: string } & Partial<SignupBody>>
+}
+
+const METHODS = ['POST']
+
+const signupApi: BigcommerceApiHandler<null, SignupHandlers> = async (
+  req,
+  res,
+  config,
+  handlers
+) => {
+  if (!isAllowedMethod(req, res, METHODS)) return
+
+  const { cookies } = req
+  const cartId = cookies[config.cartCookie]
+
+  try {
+    const body = { ...req.body, cartId }
+    return await handlers['signup']({ req, res, config, body })
+  } catch (error) {
+    console.error(error)
+
+    const message =
+      error instanceof BigcommerceApiError
+        ? 'An unexpected error ocurred with the Bigcommerce API'
+        : 'An unexpected error ocurred'
+
+    res.status(500).json({ data: null, errors: [{ message }] })
+  }
+}
+
+const handlers = { signup }
+
+export default createApiHandler(signupApi, handlers, {})