liulei92/hello-koa

learn koa from liaoxuefeng

Koa2 框架

Getting Start

> npm install 
> npm start

说明

koa的中间件方式 await+async

app.use(async (ctx, next) => {
    ...
    await next()
    ...
})

转换函数

const convert = require('koa-convert')
const _use = app.use
app.use = x => _use.call(app, convert(x))

默认模板 ejs

const views = require('koa-views')
app.use(views(path.resolve(__dirname, './views'), {
  extension: 'ejs'
}))

静态服务器

const server = require('koa-static')
app.use(server(path.resolve(__dirname, './static')))

https的访问方式

ssl证书免费申请：（腾讯云）https://console.qcloud.com/ssl

let options = {
    key: fs.readFileSync(__dirname+'/ssl/server.key'),
    cert: fs.readFileSync(__dirname+'/ssl/server.crt')
};
https.createServer(options, app.callback()).listen(443,()=>{
    console.log("https://127.0.0.1:443 is runing");
    opener("https://127.0.0.1:443");
});