小程序订阅消息推送 ​

// index.wxml
<button bindtap="bindSubscribeMessage"> 获取下发权限 </button>

// index.js
bindSubscribeMessage() {
  wx.requestSubscribeMessage({
    tmplIds: ['tmplIds'],
    success (res) { 
      console.log(res)
      }
  })
}

bindLogin() {
  /* 1. 获取code 请求开发服务器 
    * 2. 开发服务器通过 code + appid + secret 请求微信服务器获取 openid
    */
  wx.login({
    success: res => {
      if (res.code) {
        const { task } = this.data;
        this.request(Object.assign(task, { code: res.code }));
      }
    }
  });
}

function getBodyMessage(ctx) {
	const { body } = ctx.request;
	return body;
}

function getOpenId(js_code) {
	return new Promise(resolve => {
		http(
			{
				url: `https://api.weixin.qq.com/sns/jscode2session`,
				method: 'get',
				qs: {
					grant_type: 'authorization_code',
					js_code,
					appid: APP.appid,
					secret: APP.secret
				},
				json: true //设置返回的数据为json
			},
			(error, response, body) => {
				if (!error && response.statusCode == 200) {
					resolve(body);
				}
			}
		);
	});
}

function getAccessToken() {
	return new Promise(resolve => {
		http(
			{
				url: `${WX_API}/token`,
				method: 'get',
				qs: {
					grant_type: 'client_credential', // 注意 type 类型
					appid: APP.appid,
					secret: APP.secret
				},
				json: true //设置返回的数据为json
			},
			(error, response, body) => {
				if (!error && response.statusCode == 200) {
					const { access_token } = body;
					resolve(access_token);
				}
			}
		);
	});
}

function sendMessage({ access_token, openid, msg }) {
	const requestData = {
		touser: openid,
    template_id: APP.template_id,
    // 模板消息属性和属性值需要注意内容限制
		data: {
			thing1: {
				value: msg.taskName
			},
			thing10: {
				value: msg.remarks
			},
			thing9: {
				value: msg.className
			}
		}
  };
  console.log(requestData);
	return new Promise((resolve, reject) => {
		http(
			{
				url: `${WX_API}/message/subscribe/send?access_token=${access_token}`,
				headers: {
					'content-type': 'application/json'
				},
				method: 'post',
				body: requestData, // 需要注意是放在 body 上，而不是 form 上
				json: true // 设置返回的数据为json
			},
			(error, response, body) => {
				if (!error && response.statusCode == 200) {
					resolve(body);
				} else {
					reject();
				}
			}
		);
	});
}