'use strict'; const http = require('http'); const Koa = require('../..'); const app = new Koa(); app.experimental = true; // number of middleware let n = parseInt(process.env.MW || '1', 10); console.log(` ${n} async middleware`); while (n--) { app.use(async function (next){ await next; }); } const body = new Buffer('Hello World'); app.use(async function (next){ await next; this.body = body; }); app.listen(3333);