基於Node.js的微服務後臺

var express = require('express');
var router = express.Router();
var util = require('util')
var weixin  = require('weixin-api');  
var colors = require('colors') 
var net = require('net');
var HOST = '127.0.0.1';
var PORT = 5656;
var fs=require('fs')
router.get('/', function(req, res, next) {
    //console.log( util.inspect( res).red.underline )
    if (weixin.checkSignature(req)) {
        console.log( util.inspect( req.query).red.underline )
        res.status(200).send(req.query.echostr);
        //weixin.loop(req, res);
    } else {
        res.status(200).send('fail');
    }
});


weixin.token = 'qwertyuiopasdfghjkl';

weixin.textMsg(function(msg) {  
    console.log("textMsg received".red);
    console.log(JSON.stringify(msg));

    var resMsg = {};

    switch (msg.content) {
        case "開機" :
            var fd=fs.openSync('/tmp/pipeopen' , 'w')
            fs.writeSync(fd , 'start')
            fs.closeSync(fd)
            //
            resMsg = {
                fromUserName : msg.toUserName,
                toUserName : msg.fromUserName,
                msgType : "text",
                content : "機器開啓成功",
                funcFlag : 0
            };
            break;
         case "關機" :
            var fd=fs.openSync('/tmp/pipeopen' , 'w')
            fs.writeSync(fd , 'close')
            fs.closeSync(fd)
            resMsg = {
                fromUserName : msg.toUserName,
                toUserName : msg.fromUserName,
                msgType : "text",
                content : "機器關機成功",
                funcFlag : 0
            };
            break;


        case "播放音樂" :

            resMsg = {
                fromUserName : msg.toUserName,
                toUserName : msg.fromUserName,
                msgType : "music",
                title : "音樂標題",
                description : "音樂描述",
                musicUrl : "http://music.baidu.com/mv/60819306/?type=mv",
                HQMusicUrl : "高質量音樂url",
                funcFlag : 0
            };
            break;

        case "圖片" :

            var articles = [];
            articles[0] = {
                title : "美女圖片",
                description : "美女圖片",
                picUrl : "http://huliankfb.com:81/resource/7.jpg",
                url : "http://pic.yesky.com/75/52568575.shtml#baidu"
            };
           /* articles[0] = {
                title : "PHP依賴管理工具Composer入門",
                description : "PHP依賴管理工具Composer入門",
                picUrl : "http://weizhifeng.net/images/tech/composer.png",
                url : "http://weizhifeng.net/manage-php-dependency-with-composer.html"
            };

            articles[1] = {
                title : "八月西湖",
                description : "八月西湖",
                picUrl : "http://weizhifeng.net/images/poem/bayuexihu.jpg",
                url : "http://weizhifeng.net/bayuexihu.html"
            };

            articles[2] = {
                title : "「翻譯」Redis協議",
                description : "「翻譯」Redis協議",
                picUrl : "http://weizhifeng.net/images/tech/redis.png",
                url : "http://weizhifeng.net/redis-protocol.html"
            };*/

            // 返回圖文消息
            resMsg = {
                fromUserName : msg.toUserName,
                toUserName : msg.fromUserName,
                msgType : "news",
                articles : articles,
                funcFlag : 0
            }
            break;
        default:
            resMsg = {
                fromUserName : msg.toUserName,
                toUserName : msg.fromUserName,
                msgType : "text",
                content : "抱歉,不能識別的指令",
                funcFlag : 0
            };
    }
            weixin.sendMsg(resMsg);

});



// 監聽圖片消息
weixin.imageMsg(function(msg) {  
    console.log("imageMsg received");
    console.log(JSON.stringify(msg));

    resMsg = {
    fromUserName : msg.toUserName,
    toUserName : msg.fromUserName,
    msgType : "text",
    content : msg.picUrl,
    funcFlag : 0
    };
    weixin.sendMsg(resMsg);
    //weixin.sendMsg(resMsg);
});

// 監聽位置消息
weixin.locationMsg(function(msg) {  
    resMsg = {
    fromUserName : msg.toUserName,
    toUserName : msg.fromUserName,
    msgType : "text",
    content : msg.label,
    funcFlag : 0
    };
    weixin.sendMsg(resMsg);
});

// 監聽鏈接消息
weixin.urlMsg(function(msg) {  
    console.log("urlMsg received");
    console.log(JSON.stringify(msg));
});

// 監聽事件消息
weixin.eventMsg(function(msg) {  
    console.log("eventMsg received");
    console.log(JSON.stringify(msg));
});


router.post('/', function(req, res) {

    // loop
    weixin.loop(req, res);

});



module.exports = router;