common get post method, and control, edit page

pages/api/config.ts

@@ -0,0 +1,11 @@
+import type { NextApiRequest, NextApiResponse } from "next";
+import config from "@/config";
+
+export default function handler(req: NextApiRequest, res: NextApiResponse) {
+  if (req.method === "POST") {
+    // update config
+    config.begin = req.body.begin ?? config.begin;
+    config.limit = req.body.limit ?? config.limit;
+  }
+  res.status(200).json(config);
+}