dgdgproto/app/routes/api.js

const express = require('express');
const router = express.Router();
const Authenticator = require('../Authenticator');
const UserController = require('../controllers/UserController');
const PublicStateController = require('../controllers/PublicStateController');

router.get('/', function (req, res, next) {
  let rnd = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 5);
  res.send('respond with some api calls - ' + rnd);
});

router.post('/state', (req, res, next) => {
  app = req.app;
  db = app.locals.database;

  let authenticator = new Authenticator(db);
  let ctrl = new PublicStateController(db);

  let scb = (data) => {
    res.json(data);
  };

  let ecb = (error) => {
    res.status(400).send(error);
  };

  authenticator.withUser(req, res, (user) => ctrl.create(req.body, user, scb, ecb));
});

router.get('/user', function (req, res, next) {
  app = req.app;
  db = app.locals.database;

  let authenticator = new Authenticator(db);
  let ctrl = new UserController(db);

  let scb = function (data) {
    res.json(data);
  };

  let ecb = function (err) {
    res.status(400).send(err);
  };

  authenticator.getAuthenticatedUser(req, function (user) {
    if (user) {
      ctrl.getUserData(user, scb, ecb);
    } else {
      ecb({ code: 'auth error', message: 'user not logged in.' });
    }
  });
});

module.exports = router;