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KoaHub.js:使用ES6/7特性开发Node.js框架

wemallshop

2016-09-21 11:15

介绍


KoaHub.js -- 基于 Koa.js 平台的 Node.js web 快速开发框架。可以直接在项目里使用 ES6/7(Generator Function, Class, Async & Await)等特性,借助 Babel 编译,可稳定运行在 Node.js 环境上。


//base controller, admin/controller/base.controller.js

export default class extends koahub.http{


constructor() {

super();

console.log('base constructor');

}


isLogin() {

console.log('base isLogin');

}

}


//index controller, admin/controller/index.controller.js

import base from "./base.controller";

export default class extends base{


constructor() {

super();

console.log('index constructor');

}


index() {

super.isLogin();

super.json({msg: 'this is a msg'});

console.log('index index');

}

}

项目中可以使用 ES6/7 里的所有特性,借助 Babel 编译,可以稳定运行在 >=0.12.0 的 Node.js 环境中。

组件1:

koahub-loader



Installation


$ npm install koahub-loader

Use with koa


// 1.model loader

var model = loader([

{

root: './app/model',

suffix: '.model.js'

},

{

root: './addon',

suffix: '.model.js',

filter: [/\w*\/model\//]

}

]);


// 2.controller loader

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

var router = require('koa-router')();

var controller = loader([

{

root: './app/controller',

suffix: '.controller.js',

prefix: '/',

}, {

root: './addon',

suffix: '.controller.js',

prefix: '/addon/',

filter: [/\w*\/controller\//]

}

]);


for (var key in controller) {

router.use(key, controller[key].routes());

}

app.use(router.routes());


// 3.util loader

var util = loader([

{

root: './app/common',

suffix: '.util.js'

},

{

root: './addon',

suffix: '.util.js',

filter: [/\w*\/common\//]

}

]);


官网:http://js.koahub.com

组件2:

koahub-skip

koahub skip middleware

koahub skip

Conditionally skip a middleware when a condition is met.

Install

npm i koahub-skip --save

Usage

With existing middlewares:

var skip = require('koahub-skip');

var serve = require('koa-static');

var static = serve(__dirname + '/public');

static.skip = skip;

app.use(static.skip({ method: 'OPTIONS' }));

If you are authoring a middleware you can support skip as follow:

module.exports = function () {

var mymid = function *(next) {

// Do something

};

mymid.skip = require('koahub-skip');

return mymid;

};

Current options

method it could be an string or an array of strings. If the request method match the middleware will not run.

path it could be an string, a regexp or an array of any of those. If the request path match, the middleware will not run.

ext it could be an string or an array of strings. If the request path ends with one of these extensions the middleware will not run.

custom it must be a function that returns true / false. If the function returns true for the given request, ithe middleware will not run. The function will have access to Koa's context via this

useOriginalUrl it should be true or false, default is true. if false, path will match against ctx.url instead of ctx.originalUrl.

Examples

Require authentication for every request skip the path is index.html.

app.use(requiresAuth().skip({ path: ['/index.html', '/'] }))

Avoid a fstat for request to routes doesnt end with a given extension.

app.use(static.skip(function () {

var ext = url.parse(this.originalUrl).pathname.substr(-4);

return !~['.jpg', '.html', '.css', '.js'].indexOf(ext);

}));

官网:http://js.koahub.com

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