Wechat-platform NPM

wechat-platform

微信第三方平台工具模块

Install

$ npm install wechat-platform --save

功能

授权
- 获取微信推送给第三方平台的component_verify_ticket（十分钟推送一次）
- component_verify_ticket换取第三方平台component_access_token
- component_access_token换取预授权码pre_auth_code。
- 构建跳转URL，用户授权后获取授权码authorization_code
- authorization_code换取授权公众号的授权信息
授权后功能
- 使用authorizer_access_token访问公众号API

代码片段示例

config.js

var config = {};

config.wechat = {
  appid: 'appid',
  appsecret: 'appsecret',
  msg_token: 'token',
  msg_aeskey: 'aeskey'
};

config.redis = {
  host: '192.168.0.111',
  port: 6379,
  options: {
    connect_timeout: 30000
  }
};

module.exports = config;

service.js 获取token

/**
 * Module dependencies.
 */
var OAuth = require('wechat-platform').OAuth;
var ComponentToken = require('wechat-platform').ComponentToken;

var RedisCo = require('./redisCo');
var config = require('./config');

var redisClient = RedisCo(config.redis).client;
var oAuth = OAuth(config.wechat);

/**
 * redis key
 */
const PLATFORM_TICKET_KEY = 'qianmi.wechat.platform.ticket';
const PLATFORM_TOKEN_KEY = 'qianmi.wechat.platform.token';

/**
 * 获取第三方平台token
 */
exports.getComponentToken = function *() {
  var tokenData = JSON.parse(yield redisClient.get(PLATFORM_TOKEN_KEY));

  if(tokenData) {
    let componentToken = ComponentToken(tokenData);
    if (componentToken.isValid()) {
      return componentToken.data.access_token;
    }
  }

  var ticket = yield redisClient.get(PLATFORM_TICKET_KEY);
  tokenData = yield oAuth.getComponentToken(ticket);

  var result = ComponentToken(tokenData);
  redisClient.set(PLATFORM_TOKEN_KEY, JSON.stringify(result.data));

  return result.data.access_token;
}

service.js 获取微信推送事件

var Event = require('wechat-platform').Message;

exports.eventProxy = Event(config.wechat).proxy(function *(){
  var info = this.weixin;

  if(info.InfoType = 'component_verify_ticket') {
    //存入缓存
    redisClient.set(PLATFORM_TICKET_KEY, info.ComponentVerifyTicket);
  }

  this.body = 'success';
})

其他功能点使用于此类似