receive-and-return.js

#!/usr/bin/env node
const http = require("http");

const PORT = process.argv[2] || 8000;

const server = http.createServer((req, res) => {
    let data = "";
    req.on("error", err => {
        throw err;
    });
    req.on("data", chunk => {
        data += chunk;
    });
    req.on("end", () => {
        res.setHeader("Content-Type", "application/json")
        res.write(data, () => res.end());
    });
});

server.listen(PORT, () => {
    console.log(`Dummy server listing on port: ${PORT}`)
});