Added api builder

lib/bigcommerce/api/utils/create-api-handler.ts

@@ -0,0 +1,18 @@
+import type { NextApiHandler, NextApiRequest, NextApiResponse } from 'next'
+import { BigcommerceConfig, getConfig } from '..'
+
+export type BigcommerceApiHandler = (
+  req: NextApiRequest,
+  res: NextApiResponse,
+  config: BigcommerceConfig
+) => void | Promise<void>
+
+export default function createApiHandler(handler: BigcommerceApiHandler) {
+  return function getApiHandler({
+    config,
+  }: { config?: BigcommerceConfig } = {}): NextApiHandler {
+    return function apiHandler(req, res) {
+      return handler(req, res, getConfig(config))
+    }
+  }
+}