index.js

const express = require("express");
const app = express();

app.get("/hello", (req, res) => {
  res.json({
    message: "Hello, World",
  });
});

app.post("/ping", (req, res) => {
  res.json({
    message: "Pong",
  });
});

app.listen(process.env.PORT, () => {
  console.log("App is running...");
});