How to run different server on same port?

Question

I have created 2 server with express and node.js and now I want to run both the server on the same port which is localhost:8000 with different end points. How it can be done or what can be the approach for it?

Attaching the server code for reference:-

Server1:-

const express = require("express");
const cors = require("cors");
const app = express();
const axios = require('axios');

app.use(cors());
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;
const PORT = 8000;

app.get("/WeatherForcast", function (req, res) {
  axios.get('https://localhost:7173/WeatherForecast')
  .then(response => {
    res.status(200).json({ success: true, data: response.data});
  })
  .catch(error => {
    console.log(error);
  });
});

app.listen(PORT, function () {
  console.log(`Server is running on ${PORT}`);
});

Server2:-

const express = require("express");
const cors = require("cors");
const app = express();
const axios = require('axios');

app.use(cors());
process.env['NODE_TLS_REJECT_UNAUTHORIZED'] = 0;
const PORT = 8000;

app.get("/UserData", function (req, res) {
  axios.get('https://localhost:7173/UserData')
  .then(response => {
    res.status(200).json({ success: true, data: response.data});
  })
  .catch(error => {
    console.log(error);
  });
});

app.listen(PORT, function () {
  console.log(`Server is running on ${PORT}`);
});

Currently when I run it, one server runs and for other server an error is displayed that port 8000 is already in use.

Answer 1

Two different servers can not be hosted on same port as it will give the error i.e "this port is currently is use" something like this.

The thing that can be done is instead of creating multiple server you can create a single server and define different endpoints to manage the code flow.