express-final.js

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

function start() {
  return { color: "#3d00a6" }
}

function move(state) {
  console.log(state);
  return { move: 'right' }
}

app.post('/start', (req, res) => { res.json(move()) });

app.post('/move', (req, res) => { res.json(move()) });

app.post('/end', (req, res) => { res.json({}) });

app.post('/ping', (req, res) => { res.json({}) });

app.listen(3000, () => {
  console.log("Listening on port 3000");
});