微信云开发发送ajax请求云函数怎么写

为啥要写云函数，上线后不能用，可能是在前台发送ajax调用第三方不安全被拦截了呗，就吧ajax请求写到云函数里，

安装http,

npm install http
npm install wx-server-sdk

注意的返回参数要加openid，不然不返回给前端

const http = require('http');
const cloud = require('wx-server-sdk')

cloud.init({
  env: cloud.DYNAMIC_CURRENT_ENV
})
const db = cloud.database();
const key = "xxxxx"; 
exports.main = async (event, context) => {
  const wxContext = cloud.getWXContext();
  let openid=wxContext.OPENID;
  let path=encodeURI('/api/auth/idcard?key='+key+'&name='+event.name+'&idcard='+event.idcard);
  const options = {
    host: 'a.connapi.com',
    path: path, 
    method: 'GET'
  };

  return new Promise((resolve, reject) => {
    const req = http.request(options, (res) => {
       console.log(res)
       let data = '';
       res.on('data', (chunk) => {
         data += chunk; 
       });
       res.on('end', () => {
         let jj=JSON.parse(data)
        console.log("data-1-",jj)
         jj.openid=openid;
         data=JSON.stringify(jj)
         resolve(data);
       });
    });

    req.on('error', (error) => {
      
      reject(error);
    });

    req.end();
  });
};

 

前端调用和处理返回结果

    wx.cloud.callFunction({
      name: 'checkIdcardYunsuan',
      data: {
        idcard:value.code,
        name: value.name,  
      },
      success(res) {
        console.log('checkIdcardYunsuan======', res); 
        let checkresult=JSON.parse(res.result)//这里需要转一下
        if(checkresult.code==200){
          let cdata=checkresult.data;
          if(cdata.result==0){
            wx.showToast({
              title: '实名信息一致' 
           })
           cdata.name=value.name;
           cdata.idcard=value.code;
           
           that.updateUserShiming(cdata);
          }else{
            wx.showToast({
              title: '姓名和身份证不一致',
              icon: 'none'
           })
          }
          console.log(cdata)
        }else{
          wx.showToast({
            title: checkresult.msg,
            icon: 'none'
        })
        }
      }
    })