如何下发小程序模板消息

如何下发小程序模板消息

1、获取 access_token和用户openid

需要在app.js中请求相应的接口, 其实获取access_token应该是后台请求微信的接口再返回access_token，前端最好不要出现秘钥重要信息

onLaunch: function () {
    let setInfoSuccess = wx.getStorageSync('setInfoSuccess') || 0;
    let bearer_token = wx.getStorageSync('bearer-token');

    // 登录
    wx.login({
        success: res => {
            this.globalData.js_code = res.code
            //这部分是获取bearer-token，可以去掉
            if (new Date().getTime() - setInfoSuccess > 86400000 || !bearer_token) {
                api.mine.login({ code: res.code })
                    .then(d => {
                        wx.setStorageSync('bearer-token', d.data);
                    })
                    .catch(function (e) {
                     });
            }
            this.getOpenId_token()
        },
        complete: res => this.getSetting()
    })
},

getOpenId_token: function() {
        //获取access_token
      wx.request({
        url: 'https://api.weixin.qq.com/cgi-bin/token',
        data: {
          grant_type: 'client_credential',
          appid: '小程序id',
          secret: '小程序秘钥'
        },
        method: 'GET',
        // header: header,
        success: function (res) {
          wx.setStorageSync('access_token', res.data.access_token);
        },
        fail: res => (res)
      });
      //获取openid
      wx.request({
        url: `https://api.weixin.qq.com/sns/jscode2session?appid=${this.globalData.appid}&secret=${this.globalData.secre}&js_code=${this.globalData.js_code}&grant_type=authorization_code`,
        data: {},
        method: 'GET',
        success: function (res) {
          var obj = {};
          obj.openid = res.data.openid;
          wx.setStorageSync('user', obj);//存储openid  
        }
      }); 
    },

2、在触发模板消息的页面中获取form_id或者prepay_id

自定义一个表单，需要加上report-submit属性才能获取form_id

  <view class='first'>测试模板信息</view>
  <form name='pushMsgFm' report-submit bindsubmit='test'>

    <button class='index-btn' form-type="submit">开始测试</button>
  </form>

  test: function (e) {
  //e.detail.formId如果在开发工具上请求，则获取的是the formId is a mock one
  //需要用手机扫开发版获取formId，然后赋值到此 fId 再请求
  //手机端请求不了是因为服务器不能配置api.weixin.qq.com
    let fId = e.detail.formId;  
    wx.showToast({
      title: fId,
      duration: 3000
    });
    let url = `https://api.weixin.qq.com/cgi-bin/message/wxopen/template/send?access_token=${wx.getStorageSync('access_token')}`
    let data = {
      "touser": wx.getStorageSync('user').openid,
      "template_id": "小程序模板id，看文档获取",
      //点击模板跳转的页面路径，如果不填则不跳转
      "page": "pages/index/index",
      "form_id": fId,
      "data": {
        "keyword1": {
          "value": "339208499",
          "color": "#173177"
        },
        "keyword2": {
          "value": "2015年01月05日 12:30",
          "color": "#173177"
        },
        "keyword3": {
          "value": "粤海喜来登酒店",
          "color": "#173177"
        },
        "keyword4": {
          "value": "广州市天河区天河路208号",
          "color": "#173177"
        },
        "keyword5": {
          "value": "今天天气很好",
          "color": "#173177"
        }
      },
      "emphasis_keyword": "keyword1.DATA"
    }
    //发送模板消息
    wx.request({
      url: url,
      data: data,
      method: 'POST',
      success: function (res) {

      }
    });
  }

结果如下：