koa2快速搭建api伺服器-建立入口檔案及koa例項
阿新 • • 發佈:2019-02-13
使用koa2快速搭建api伺服器:
app.js 暴露出koa httpserver例項:
const koa =require('koa'); const app =new koa(); const router = require('koa-router')(); const co = require('co'); const convert = require('koa-convert'); const json = require('koa-json'); const onerror =require('koa-onerror'); const bodyparser = require('koa-bodyparser')(); const logger = require('koa-logger'); const server = require('koa-static'); const index = require('./routes/index'); const users = require('./routes/users'); //middleware app.use(convert(bodyparser)); app.use(convert(json())); app.use(convert(logger())); app.use(convert(server(__dirname+'/public'))); app.use(co.wrap(function* (ctx, next) { const start = new Date(); yield next(); const ms = new Date() - start; console.log(`${ ctx.method } ${ ctx.url } - ${ ms }ms`); })); router.use('/',index.routes(),index.allowedMethods()); router.use('/users',users.routes(),users.allowedMethods()); app.use(router.routes(),router.allowedMethods()); app.on('error',function(err,ctx){ log.error('server error',err,ctx); }); module.exports = app;
index.js 程式入口檔案
const app = require('./app');
app.listen(3000);