npm install babel babel-register babel-preset-env --save

require('babel-register');

require('./server.js');

{
 "presets": [
  ["env", {
   "targets": {
    "node": true
   }
  }]
 ]
}

require('babel-register');

require('./servers/devserver');

var koa = require('koa');
var app = new koa();
const request = require('request');


let port = process.env.PORT || 8080;
console.log("set port:" + process.env.PORT + "; ip:" + process.env.IP);
app.use(async (ctx) => {
 console.log(ctx.url);
 if (ctx.url.indexOf('/aaa') > -1) {
  
  ctx.response.set('content-type', 'text/javascript');
  ctx.body = request.get('http://127.0.0.1/aa.bundle.js', function(err, response, body) {
   console.log(body);
  });
 }
});
app.listen(port);