How to setup a timeout for long time waiting response in node js?

I'm trying to set the timeout to prevent continuous running of api call. But it's not working.Here is my code.

const express=require('express'
const app=require('./app')
const http=require('http');
const bodyParser=require('body-parser');
const cookieParser=require('cookie-parser');
const dotenv=require('dotenv');
const ConnectToDb=require('./config/db-connection');
const register=require('./api/routes/auth');
const errorHandler = require('./api/middlewares/errorHandler');

//setting .env file variables
dotenv.config({path:'./.env'})
const PORT=process.env.PORT || 5001;
// ConnectToDb();






const server=http.createServer(app);


ConnectToDb().then(()=>{
    server.listen(PORT,()=>{
        console.log(`Listening on port ${PORT}`);
    })
});

var request=http.request({
    port:PORT,
    host:'192.168.1.247',
    timeout: 5000,
});
request.end();
request.on('timeout', (res)=>{
    console.log("timeout- server taking too long to respond");
  });

Here is the route i'm trying to test.

const express=require('express');
const router=express.Router();
router.get("/",(req,res)=>{
    setTimeout(()=>{
        res.status(400).json({message:'Testing'})
    },10000)

})

module.exports=router;