CODE EXAMPLE FOR JAVASCRIPT

starting express server

const express = require("express");
const cors = require("cors");
require("dotenv").config();
const port = process.env.PORT || 5000;
const app = express();

//middle ware
app.use(cors());
app.use(express.json());

app.get("/", (req, res) => {
  res.send("server is up");
});

app.listen(port, () => {
  console.log("server is running");
});