finished user store in typscript

backend/src/server.ts

@@ -1,7 +1,8 @@
 import "dotenv/config";
 import "express-async-errors";
-import express from "express";
+import express, { Request, Response, NextFunction } from "express";
 import cors from "cors";
+import AppError from "./errors/AppError";
 
 import routes from "./routes";
 
@@ -15,14 +16,21 @@ import "./database";
 // const wbotMonitor = require("./services/wbotMonitor");
 // const Whatsapp = require("./models/Whatsapp");
 
-// const Router = require("./router");
-
 const app = express();
 
 app.use(cors());
 app.use(express.json());
 app.use(routes);
 
+app.use(async (err: Error, req: Request, res: Response, next: NextFunction) => {
+  if (err instanceof AppError) {
+    return res.status(err.statusCode).json({ error: err.message });
+  }
+
+  console.error(err);
+  return res.status(500).json({ error: "Internal server error" });
+});
+
 const server = app.listen(process.env.PORT, () => {
   console.log(`Server started on port: ${process.env.PORT}`);
 });