server.js

var koa = require('koa')
  , app = koa()

// sessions
var session = require('koa-sess')
var redisStore = require('koa-redis')
app.keys = ['hive']
app.use(session({
  store: redisStore()
}))

// body parser
var bodyParser = require('koa-bodyparser')
app.use(bodyParser())

// authentication
require('./auth')
var passport = require('koa-passport')
app.use(passport.initialize())
app.use(passport.session())

// append view renderer
var views = require('koa-render')
app.use(views('./views', {
  map: { html: 'handlebars' },
  cache: false
}))

var Router = require('koa-router')

// API
var APIRouter = new Router()
var API = require('./api')
var methodMap = {
  'POST': 'create',
  'PUT': 'update',
  'PATCH': 'patch',
  'DELETE': 'delete',
  'GET': 'read'
}
APIRouter.register('/api/:resources', ['get', 'post'], function *(next) {
  var resources = this.params.resources
  try {
    this.body = yield API[resources][methodMap[this.method]]()
  } catch (e) {
    this.throw(e)
  }
})

APIRouter.register('/api/:resources/:id', ['get', 'put', 'delete'], function *(next) {
  var resources = this.params.resources,
      id = this.params.id
  try {
    this.body = yield API[resources][methodMap[this.method]](id)
  } catch (e) {
    this.throw(e)
  }
})

app.use(APIRouter.middleware())

// public routes
var public = new Router()

public.get('/login', function*() {
  this.body = yield this.render('login')
})

// POST /login
public.post('/login',
  passport.authenticate('local', {
    successRedirect: '/app',
    failureRedirect: '/'
  })
)

public.get('/logout', function*(next) {
  this.logout()
  this.redirect('/')
})

public.get('/auth/douban',
  passport.authenticate('douban')
)

public.get('/auth/douban/callback',
  passport.authenticate('douban', {
    successRedirect: '/',
    failureRedirect: '/login'
  })
)

app.use(public.middleware())



// Require authentication for now
var send = require('koa-send')
app.use(function *(next) {
  if (this.isAuthenticated()) {
    yield next
    if (this.body == null) {
      yield send(this, __dirname + '/static/index.html')
    }
  } else {
    this.redirect('/login')
  }
})

// satatic
var serve = require('koa-static')
app.use(serve(__dirname + '/static'))

//sockjs
var sockjs = require('sockjs').createServer(),
    server = require('http').createServer(app.callback())
sockjs.installHandlers(server, {
  prefix: '/sockjs'
})

// start server
server.listen(process.env.PORT || 3000)