小程序前端获取openId

// 获取openID
async getOpenid(code){
    let params = {
      appid:'xxx',
      secret: 'xxxx',
      js_code: code,
      grant_type: 'authorization_code',
    }
   await httpRequest.request({
      url: 'https://api.weixin.qq.com/sns/jscode2session',
      data: params,
      success: (res) => {
        console.log(res.data);
        this.openID = res.data.openid;
        console.log('openID:'+this.openID)
      }
    });
  },