請問一下在

   response.on('end', function() {
      // 数据接收完成
      result=JSON.parse(body)
      console.log("22222222222",result)
   });

result內的值，怎麼樣讓createServer可以使用?

完整的程式碼:

var http = require('http');
var https = require('https');
var result;
// 用于请求的选项
var options = {
   method: 'POST',
   headers:{
      'content-Type':'application/json'
   }
     
};
const data = JSON.stringify({
   address: '新北市永和區永貞路1號'
})

// 处理响应的回调函数
var callback = function(response){
   // 不断更新数据
   var body = '';
   response.on('data', function(data) {
      body += data;
   });

   response.on('end', function() {
      // 数据接收完成
      result=JSON.parse(body)
      console.log("22222222222",result)
   });
}

var svr = http.createServer(function(req, resp) {
  console.log(req.method, req.url);
  
    // 向服务端发送请求
    var reqZip = https.request('https://c4-tw-nonprod-uat.apigee.net//api/v1/postOffice/postGetZipCode',options, callback);
    reqZip.write(data)
    reqZip.end();
    
    resp.setHeader("Content-Type", "application/json");
    resp.end(JSON.stringify({ date: new Date(), msg:' result.data'}));
  

});

svr.listen(process.env.PORT || 3000, function() {
  console.log('Node HTTP server is listening');
});

後來的解法:

var http = require('http');
var https = require('https');
let result;

// 用於請求的選項
var options = {
    host: 'c4-tw-nonprod-uat.apigee.net',
    path: '/api/v1/postOffice/postGetZipCode',
    method: 'POST',
    headers: {
        'content-Type': 'application/json; charset=utf-8'
    }
};


var svr = http.createServer(function (req, resp) {

    var query = require('url').parse(req.url,true).query;
    var address = query.address;

    console.log("req.address",address)
    let respdata=JSON.stringify({'address':address});

   // 向服務端發送請求
        new Promise((resolve, reject) => {

            var reqZip = https.request(options, 
             function (response) {
                // 不斷更新資料
                var body = '';
                response.on('data', function (data) {
                    body += data;
                });
    
                response.on('end', function () {
                    // 資料接收完成
                    result = JSON.parse(body);
                    resolve();
                });
    
            }
            );
            reqZip.write(respdata);
            reqZip.end();
    
            console.log("3", result);
    
        }).then(resolve => {
        
            resp.setHeader("Content-Type", "application/json");
            resp.end(JSON.stringify({ date: new Date(), msg: result })); 

        }).catch((error)=>{
            console.error(error);
        });

});

svr.listen(process.env.PORT || 3000, function () {
    console.log('Node HTTP server is listening');
});