server.js

import path from 'path'
import zlib from 'zlib'
import fs from 'fs'

import Koa from 'koa'
import koaStatic from 'koa-static'

import koaBodyparser from 'koa-bodyparser'
import koaCompress from 'koa-compress'
import koaConvert from 'koa-convert'
import koaHandleError from 'koa-handle-error'
import koaMount from 'koa-mount'
import koaPassport from 'koa-passport'
import koaRouter from 'koa-router'
import koaSession from 'koa-generic-session'

const CWD  = path.resolve(__dirname)
const HOST = process.env.IP || '0.0.0.0'
const PORT = /*process.env.PORT ||*/ 3000
const ADDRESS = `http://${HOST}:${PORT}`

console.log()
console.log('CWD:     ', CWD)
console.log('HOST:    ', HOST)
console.log('PORT:    ', PORT)
console.log('ADDRESS: ', ADDRESS)
console.log()

function errorHandler(error) {
  console.error('KOA ERROR: ' + error.stack || error.message || error)
}

const router = koaRouter()
const app = new Koa()
app.keys = ['keyboardcat']

const _use = app.use
app.use = x => _use.call(app, koaConvert(x))

app
  .use(koaHandleError(errorHandler))

  .use(koaBodyparser())
  .use(koaSession())
  .use(koaPassport.initialize())
  .use(koaPassport.session())

  .use(router.routes())
  .use(router.allowedMethods())
  .use(koaStatic(`${CWD}/../client`))
  .use(koaCompress({
    filter: (contentType) => /text/i.test(contentType),
    threshold: 2048,
    flush: zlib.Z_SYNC_FLUSH,
  }))

console.log('Starting...')

app
  .listen(PORT, HOST, () => {
    console.log('Started.')
  })