receptor/serve.js

var path = require('path');
var fs = require('fs');
var process = require('process');
var express = require('express');
var webpack = require('webpack');
var config = require('./webpack.config');
var mime = require('mime');

var app = express();
var compiler = webpack(config);

app.use(require('webpack-dev-middleware')(compiler, {
  noInfo: true,
  publicPath: config.output.publicPath
}));

app.use(require('webpack-hot-middleware')(compiler));

app.get('*', function(req, res) {
  var _path = path.join(__dirname, req.path);
  fs.access(_path, fs.constants.R_OK, err => {
    if (!err) {
      res.sendFile(_path);
    } else {
      res.sendFile(path.join(__dirname, '/index.html'));
    }
  });
});

var port = process.env.MANAGER_PORT || 3000;

app.listen(port, 'localhost', function(err) {
  if (err) {
    console.log(err);
    return;
  }
  console.log('Listening at http://localhost:' + port);
});