update

src/app.controller.ts

@@ -17,7 +17,8 @@ export class AppController {
     console.log(req.params);
     console.log(req.query);
     console.log(req.path);
-    req.res.status(HttpStatus.OK).json({
+    const responseStatus = req.query.sign && req.query.sign == '1234' ? 200 : 403;
+    req.res.status(responseStatus).json({
       code: 0,
       msg: 'success',
     });