send/server/bin/dev.js

const assets = require('../../common/assets');
const locales = require('../../common/locales');
const routes = require('../routes');
const pages = require('../routes/pages');
const tests = require('../../test/frontend/routes');
const express = require('express');
const expressWs = require('express-ws');
const config = require('../config');

module.exports = function(app, devServer) {
  const wsapp = express();
  expressWs(wsapp, null, { perMessageDeflate: false });
  wsapp.ws('/api/ws', require('../routes/ws'));
  wsapp.listen(8081, config.listen_address);

  assets.setMiddleware(devServer.middleware);
  locales.setMiddleware(devServer.middleware);
  routes(app);
  tests(app);
  // webpack-dev-server routes haven't been added yet
  // so wait for next tick to add 404 handler
  process.nextTick(() => app.use(pages.notfound));
};