Slowloris, body parsing

**Summary:** [add summary of the vulnerability] Attackers can cause a Denial of Service by sending HTTP request body data extremely slowly to keep a connection open by maintaining activity, and use resources over an extended period.

const bodyParser = require('body-parser');
const express = require('express');
const net = require('net');
const http = require('http');

async function run() {
    const expressApp = express();

    expressApp.use(bodyParser.json());

    expressApp.use(async (req, res) => { …