Express JSON post echo

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

app.use(express.json())

app.post(
	'/',
	(req, res) => {
		console.log(req.body);
		let resObj = { replyType:"echo", content: req.body};
		res.end(JSON.stringify(resObj));
	}
)

const PORT = process.env.PORT || 3000
app.listen(PORT, () => {
	console.log(`Server listening on port ${PORT}`)
})