app.js

const Koa = require('koa')
const app = new Koa()
const views = require('koa-views')
const json = require('koa-json')
const onerror = require('koa-onerror')
const koaBody = require('koa-body')
const logger = require('koa-logger')
const session = require('koa-session')
const Router = require('./routes')
const cors = require('./utils/koa-cors')
const checkToken = require('./middleware/jwtToken')

app.use(cors);
app.use(checkToken)

// error handler
onerror(app)

// middlewares
app.use(koaBody({
  json: true,
  multipart: true,
  formidable: {
      maxFileSize: 200 * 1024 * 1024 // 设置上传文件大小最大限制，默认2M
  }
}))
app.use(json())
app.use(logger())
app.use(require('koa-static')(__dirname + '/public'))

app.use(views(__dirname + '/views', {
  extension: 'pug'
}))

// logger
app.use(async (ctx, next) => {
  const start = new Date()
  await next()
  const ms = new Date() - start
  console.log(`${ctx.method} ${ctx.url} - ${ms}ms`)
})

// session 配置
app.keys = ['Indomite'];
app.use(session({
  // 配置 cookie
  cookie: {
    path: '/',
    httpOnly: true,
    maxAge: 24 * 60 * 60 * 1000
  }
},app))

// routes
app.use(Router.routes(), Router.allowedMethods());

// error-handling
app.on('error', (err, ctx) => {
  console.error('server error', err, ctx)
});

module.exports = app