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+wechat [![NPM version](https://badge.fury.io/js/wechat.png)](http://badge.fury.io/js/wechat) [![Build Status](https://travis-ci.org/node-webot/wechat.png?branch=master)](https://travis-ci.org/node-webot/wechat) [![Dependencies Status](https://david-dm.org/node-webot/wechat.png)](https://david-dm.org/node-webot/wechat) [![Coverage Status](https://coveralls.io/repos/node-webot/wechat/badge.png)](https://coveralls.io/r/node-webot/wechat)
+======
+
+Wechat is a middleware and SDK of Wechat Official Account Admin Platform (mp.weixin.qq.com).
+
+This wechat document is translated by [Guo Yu](https://github.com/turingou/), if you have some understanding problems, please feel free open an issue [here](https://github.com/turingou/wechat/issues).
+
+## Features
+
+- Auto reply (text, image, videos, music, thumbnails posts are supported)
+- CRM message (text, image, videos, music, thumbnails posts are supported)
+- Menu settings (CRD are supported)
+- QR codes (CR are supported, both temporary and permanent)
+- Group settings (CRUD are supported)
+- Followers infomation (fetching user's info or followers list)
+- Media (upload or download)
+- Reply Waiter (good for surveys)
+- Sessions 
+- OAuth API
+
+API details located [here](http://node-webot.github.io/wechat/api.html)
+
+## Installation
+
+```
+npm install wechat
+```
+
+## Use with Connect/Express
+
+```
+var wechat = require('wechat');
+
+app.use(connect.query()); // Or app.use(express.query());
+app.use('/wechat', wechat('some token', function (req, res, next) {
+  // message is located in req.weixin
+  var message = req.weixin;
+  if (message.FromUserName === 'diaosi') {
+    // reply with text
+    res.reply('hehe');
+  } else if (message.FromUserName === 'text') {
+    // another way to reply with text
+    res.reply({
+      content: 'text object',
+      type: 'text'
+    });
+  } else if (message.FromUserName === 'hehe') {
+    // reply with music
+    res.reply({
+      type: "music",
+      content: {
+        title: "Just some music",
+        description: "I have nothing to lose",
+        musicUrl: "http://mp3.com/xx.mp3",
+        hqMusicUrl: "http://mp3.com/xx.mp3"
+      }
+    });
+  } else {
+    // reply with thumbnails posts
+    res.reply([
+      {
+        title: 'Come to fetch me',
+        description: 'or you want to play in another way ?',
+        picurl: 'http://nodeapi.cloudfoundry.com/qrcode.jpg',
+        url: 'http://nodeapi.cloudfoundry.com/'
+      }
+    ]);
+  }
+}));
+```
+
+*Tips*: you'll have to apply `token` at [Wechat platform (this page is in Chinese)](http://mp.weixin.qq.com/cgi-bin/callbackprofile?type=info&t=wxm-developer-ahead&lang=zh_CN)
+
+### Reply Messages
+
+auto reply a message when your followers send a message to you. also text, image, videos, music, thumbnails posts are supported. details API goes [here (official documents)](http://mp.weixin.qq.com/wiki/index.php?title=发送被动响应消息)
+
+#### Reply with text
+```
+res.reply('Hello world!');
+// or
+res.reply({type: "text", content: 'Hello world!'});
+```
+#### Reply with Image
+```
+res.reply({
+  type: "image",
+  content: {
+    mediaId: 'mediaId'
+  }
+});
+```
+#### Reply with voice
+```
+res.reply({
+  type: "voice",
+  content: {
+    mediaId: 'mediaId'
+  }
+});
+```
+#### Reply with Video
+```
+res.reply({
+  type: "video",
+  content: {
+    mediaId: 'mediaId',
+    thumbMediaId: 'thumbMediaId'
+  }
+});
+```
+#### Reply with Music
+```
+res.reply({
+  title: "Just some music",
+  description: "I have nothing to lose",
+  musicUrl: "http://mp3.com/xx.mp3",
+  hqMusicUrl: "http://mp3.com/xx.mp3"
+});
+```
+#### Reply with Thumbnails posts
+```
+res.reply([
+  {
+    title: 'Come to fetch me',
+    description: 'or you want to play in another way ?',
+    picurl: 'http://nodeapi.cloudfoundry.com/qrcode.jpg',
+    url: 'http://nodeapi.cloudfoundry.com/'
+  }
+]);
+```
+
+### WXSession
+
+Wechat messages are not communicate like traditional C/S model, therefore nothing Cookies will be store in Wechat client. this WXSession is designed to support access user's infomation via `req.wxsession`, with `connect.session` backed.
+
+It's a simple demo:
+
+```
+app.use(connect.cookieParser());
+app.use(connect.session({secret: 'keyboard cat', cookie: {maxAge: 60000}}));
+app.use('/wechat', wechat('some token', wechat.text(function (info, req, res, next) {
+  if (info.Content === '=') {
+    var exp = req.wxsession.text.join('');
+    req.wxsession.text = '';
+    res.reply(exp);
+  } else {
+    req.wxsession.text = req.wxsession.text || [];
+    req.wxsession.text.push(info.Content);
+    res.reply('Message got ' + info.Content);
+  }
+})));
+```
+
+`req.wxsession` and `req.session` shares same store. width `redis` as persistence database, across processes sharing are supportd.
+
+### Reply Waiter
+
+a reply waiter is seems like a telephone menu system. it must be setup before activation. this function is supported upon WXSession. 
+
+```
+var List = require('wechat').List;
+List.add('view', [
+  ['reply {a}', function (info, req, res) {
+    res.reply('Im Answer A');
+  }],
+  ['reply {b}', function (info, req, res) {
+    res.reply('Im Answer B');
+  }],
+  ['reply {c}', 'Im Answer C (the shorthand method)']
+]);
+```
+
+active the reply waiter we setuped before:
+
+```
+var app = connect();
+app.use(connect.query());
+app.use(connect.cookieParser());
+app.use(connect.session({secret: 'keyboard cat', cookie: {maxAge: 60000}}));
+app.use('/wechat', wechat('some token', wechat.text(function (info, req, res, next) {
+  if (info.Content === 'list') {
+    res.wait('view'); // view is the very waiter we setuped before.
+  } else {
+    res.reply('hehe');
+    // or stop the waiter and quit.
+    // res.nowait('hehe');
+  }
+})));
+```
+
+if waiter `view` actived, user will receive messages below:
+
+```
+reply a
+reply b
+reply c
+```
+
+reply waiter acquires both function and text as a `callback` action
+
+```
+List.add('view', [
+  ['reply {a}', function (info, req, res, next) {
+    // we callback as a function
+    res.reply('Answer A');
+  }],
+  // or text as shorthand
+  ['reply {c}', 'Answer C']
+]);
+```
+
+if user's message is not in waiter's trigger texts. this message will be processd in the `else` way and can be stoped by `res.nowait()`, `res.nowait` method actions like `reply` method.
+
+## Show cases
+### Auto-reply robot based on Node.js
+
+![Node.js API Auto-reply robot](http://nodeapi.diveintonode.org/assets/qrcode.jpg)
+
+Codes here <https://github.com/JacksonTian/api-doc-service>
+
+robots can be setup in PAASs like [CloudFoundry](http://www.cloudfoundry.com/), [appfog](https://www.appfog.com/) or [BAE](http://developer.baidu.com/wiki/index.php?title=docs/cplat/rt/node.js).
+
+## API details
+official document locates here [Messages API Guide (in Chinese)](http://mp.weixin.qq.com/wiki/index.php?title=消息接口指南)。
+
+wachat 0.6.x supports shorthand methods below:
+
+```
+app.use('/wechat', wechat('some token', wechat.text(function (message, req, res, next) {
+  // reply with text
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125035',
+  // MsgType: 'text',
+  // Content: 'http',
+  // MsgId: '5837397576500011341' }
+}).image(function (message, req, res, next) {
+  // message为图片内容
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359124971',
+  // MsgType: 'image',
+  // PicUrl: 'http://mmsns.qpic.cn/mmsns/bfc815ygvIWcaaZlEXJV7NzhmA3Y2fc4eBOxLjpPI60Q1Q6ibYicwg/0',
+  // MediaId: 'media_id',
+  // MsgId: '5837397301622104395' }
+}).voice(function (message, req, res, next) {
+  // Reply with Voice
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125022',
+  // MsgType: 'voice',
+  // MediaId: 'OMYnpghh8fRfzHL8obuboDN9rmLig4s0xdpoNT6a5BoFZWufbE6srbCKc_bxduzS',
+  // Format: 'amr',
+  // MsgId: '5837397520665436492' }
+}).video(function (message, req, res, next) {
+  // Reply with Video
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125022',
+  // MsgType: 'video',
+  // MediaId: 'OMYnpghh8fRfzHL8obuboDN9rmLig4s0xdpoNT6a5BoFZWufbE6srbCKc_bxduzS',
+  // ThumbMediaId: 'media_id',
+  // MsgId: '5837397520665436492' }
+}).location(function (message, req, res, next) {
+  // Reply with Location (geo)
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125311',
+  // MsgType: 'location',
+  // Location_X: '30.283950',
+  // Location_Y: '120.063139',
+  // Scale: '15',
+  // Label: {},
+  // MsgId: '5837398761910985062' }
+}).link(function (message, req, res, next) {
+  // Reply with Link
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125022',
+  // MsgType: 'link',
+  // Title: 'A link',
+  // Description: 'A link has its desc',
+  // Url: 'http://1024.com/',
+  // MsgId: '5837397520665436492' }
+}).event(function (message, req, res, next) {
+  // Reply with Event
+  // { ToUserName: 'gh_d3e07d51b513',
+  // FromUserName: 'oPKu7jgOibOA-De4u8J2RuNKpZRw',
+  // CreateTime: '1359125022',
+  // MsgType: 'event',
+  // Event: 'LOCATION',
+  // Latitude: '23.137466',
+  // Longitude: '113.352425',
+  // Precision: '119.385040',
+  // MsgId: '5837397520665436492' }
+})));
+```
+
+*Tips*: `text`, `image`, `voice`, `video`, `location`, `link`, `event` must be set at least one.
+
+### More simple APIs
+
+Supported in 0.3.x and above.
+
+```
+app.use('/wechat', wechat('some token').text(function (message, req, res, next) {
+  // TODO
+}).image(function (message, req, res, next) {
+  // TODO
+}).voice(function (message, req, res, next) {
+  // TODO
+}).video(function (message, req, res, next) {
+  // TODO
+}).location(function (message, req, res, next) {
+  // TODO
+}).link(function (message, req, res, next) {
+  // TODO
+}).event(function (message, req, res, next) {
+  // TODO
+}).middlewarify());
+```
+
+### Functions Graph
+![graph](https://raw.github.com/node-webot/wechat/master/figures/wechat.png)
+
+*Tips*: Business logic in blue lines.
+
+## License
+The MIT license.
+
+## Donation
+buy me a cup of coffee please.
+
+[![donate wechat](https://img.alipay.com/sys/personalprod/style/mc/btn-index.png)](https://me.alipay.com/jacksontian)
diff --git a/README.md b/README.md
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@@ -3,6 +3,8 @@ wechat [![NPM version](https://badge.fury.io/js/wechat.png)](http://badge.fury.i
 
 微信公共平台消息接口服务中间件与API SDK
 
+[Wechat document in English](./README.en.md)
+
 ## 功能列表
 - 自动回复（文本、图片、语音、视频、音乐、图文）
 - 客服消息（文本、图片、语音、视频、音乐、图文）