Feathers socket auth - Server side

app.js

const path = require('path');
const serveStatic = require('feathers').static;
const favicon = require('serve-favicon');
const compress = require('compression');
const cors = require('cors');
const feathers = require('feathers');
const configuration = require('feathers-configuration');
const hooks = require('feathers-hooks');
const rest = require('feathers-rest');
const bodyParser = require('body-parser');
const auth = require('feathers-authentication');
const socketio = require('feathers-socketio');
const jwt = require('feathers-authentication-jwt');
const local = require('feathers-authentication-local');
const middleware = require('./middleware');
const services = require('./services');

const mongoose = require('mongoose');
const service = require('feathers-mongoose');

const foodModel = require('./models/foodModel');
const orderModel = require('./models/orderModel');
mongoose.Promise = global.Promise;
mongoose.connect('mongodb://localhost:27017/feathers');

const app = feathers();

app.configure(configuration(path.join(__dirname, '..')));

let socketioOptions = function(io) {
    io.on('connection', function(socket) {
      socket.emit('test', { text: 'A client connected! This message is sent right after connecting.' });
      socket.on('test', function (data) {
        console.log(data);
      });
    });

    // Registering Socket.io middleware
    io.use(function (socket, next) {
      // Exposing a request property to services and hooks
      socket.feathers.referrer = socket.request.referrer;
      next();
    });
};

app.use(compress())
  .options('*', cors())
  .use(cors())
  .use(favicon( path.join(app.get('public'), 'favicon.ico') ))
  .use('/', serveStatic( app.get('public') ))
  .use(bodyParser.json())
  .use(bodyParser.urlencoded({ extended: true }))
  .configure(hooks())
  .configure(rest())
  .configure(socketio())
  .configure(services)
  .configure(middleware)
  .configure(jwt())
  .configure(local());

app.service('authentication').hooks({
  before: {
    create: [
      auth.hooks.authenticate(['jwt', 'local'])
    ]
  }
});

module.exports = app;