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koa2-extend

v1.0.1

Published

koa@next的一些扩展函数

Downloads

21

Readme

koa@next的一些扩展函数

要求node版本>=6.0.0

install

npm install koa2-extend

usage

var koa = require('koa');
require('koa2-extend');  // 要在实例化app前引入koa2-extend
var app = new koa();

app.use(function(ctx) {
    console.log('fullUrl:',ctx.fullUrl);
    if(ctx.url.indexOf('json') >= 0) {
        ctx.response.body = '{"encode":true}';
        console.log(ctx.response.json.encode);
        // 将输出: true
    }
    else {
        ctx.response.body = '<body>test</body>';
        var $ = ctx.response.$;
        $('body').addClass('test');
        ctx.response.body = $.html();
        console.log(ctx.response.body);
        // 将输出: <body class="test">test</body>
    }
});

api

  • ctx.fullUrl 同request.fullUrl
  • ctx.isBinary(filepath) 根据文件路劲判断是否是二进制文件
  • ctx.sendFile(filepath) 发送文件
  • ctx.isDir(path) 判断本地路径是否是文件夹
  • request.fullUrl 包含protocol和host的完全链接
  • response.$ 使用cheerio包裹后的html对象, 使用时转码, 转换失败返回''
  • response.json 使用JSON.parse转换body后的对象, 使用时转换, 转换失败返回''