The API call result was not normally contained in the (info) object because node…

…js processed the function asynchronously. So we used the following grammar rules, async, await, and changed it to call api synchronously. Good operation

@@ -11,6 +11,7 @@ module.exports = (server, app) => {
 
         let info = {}
         const CALL = (when, what) => {
+            return new Promise((resolve, reject) => {
             requesting.get({
                     // api를 요청할 주소 -- 시크릿키,위도,경도 입력
                     url: `https://api2.sktelecom.com/weather/${when}/${what}?appKey=${secret_key}&lat=${lat}&lon=${lon}`,
@@ -18,49 +19,64 @@ module.exports = (server, app) => {
                 },
                 //api에게 응답 받았을때 실행되는 callback function
                 function (err, api_res, api_body) {
-                if (err) throw err;
-                // api의 대답이 있을경우 실행
+                    //err 존재시 promise reject 호출
+                    if (err) reject(err);
+
+                    // api의 response이 있을경우 promise resolve 호출
                     if (api_res) {
-                    return api_body;
-                  //  api_body.weather.minutely[0] 
+                        console.log("call");
+                                resolve(api_body);
                         }
                     });
+                })
             }
             io.on('connection', (socket) => { //웹 페이지 연결시 루프 동작
                 let API_CALL;
-        let Current_Weather ={};
-        let Sensible_T;
-        let Heat_index={};
-        let Discomport_index={};
-        let Ultra_Violet_index={};
-        let sending_to_client_info={};
-        let client_send={};
+                //명시적으로 객체임을 선언 
+                let Current_Weather = {};
+                let Sensible_T = {};
+                let Heat_index = {};
+                let Discomport_index = {};
+                let Ultra_Violet_index = {};
+                let sending_to_client_info = {};
+                let client_send = {};
                 let sql;
 
                 socket.on("connection", () => {
-            API_CALL = setInterval(() => {
+                    console.log("lala");
+                    // API_CALL = setInterval(() => {
+                    console.log("lala");
+
+
+                    const API_bundle = async () => {
 
-                Current_Weather = CALL("current","minutely"); //현재날씨 (분별)
-                Sensible_T = CALL("index","wct"); //체감온도
-                Heat_index = CALL("index","heat"); //열지수
-                Discomport_index = CALL("index","th"); //불쾌지수
-                Ultra_Violet_index = CALL("index","uv"); //자외선지수
+                        try {
+                            Current_Weather = await CALL("current", "minutely"); //현재날씨 (분별)
+                            Sensible_T = await CALL("index", "wct"); //체감온도
+                            Heat_index = await CALL("index", "heat"); //열지수
+                            Discomport_index = await CALL("index", "th"); //불쾌지수
+                            Ultra_Violet_index = await CALL("index", "uv"); //자외선지수
+                            console.log("bundle");
 
                             info = {
-                    heat : Sensible_T.weather.wIndex.heatIndex[0].current.index, //열지수
-                    sensible_temperature : Sensible_T.weather.wIndex.wctIndex[0].current.index, //체감온도
-                    discomport : Discomport_index.weather.wIndex.thIndex[0].current.index, //불쾌지수
-                    UV : Ultra_Violet_index.weather.wIndex.uvindex[0].day00.index, //자외선지수
-                    windspd : Current_Weather.weather.minutely[0].wind.wspd,    //바람 속도
-                    sky : Current_Weather.weather.minutely[0].sky.code,    //하늘 상태
-                    rain : Current_Weather.weather.minutely[0].rain.last24hour,  //강수량 
-                    current_temperature : Current_Weather.weather.minutely[0].temperature.tc, //현재 온도
-                    lightning : Current_Weather.weather.minutely[0].lightning, //현재 낙뢰
-                    warning : Current_Weather.common.alertYn,                       //현재 특보 유무
-                    typhoon : Current_Weather.common.stormYn,                   //현재 태풍
-                    time : Current_Weather.weather.minutely[0].timeObservation, // 불러온 시각
-                    death_prob:0                                                           //확률
+                                heat: Heat_index.weather.wIndex.heatIndex[0].current.index, //열지수
+                                sensible_temperature: Sensible_T.weather.wIndex.wctIndex[0].current.index, //체감온도
+                                discomport: Discomport_index.weather.wIndex.thIndex[0].current.index, //불쾌지수
+                                UV: Ultra_Violet_index.weather.wIndex.uvindex[0].day01.index, //자외선지수
+                                windspd: Current_Weather.weather.minutely[0].wind.wspd, //바람 속도
+                                sky: Current_Weather.weather.minutely[0].sky.code, //하늘 상태
+                                rain: Current_Weather.weather.minutely[0].rain.last24hour, //강수량 
+                                current_temperature: Current_Weather.weather.minutely[0].temperature.tc, //현재 온도
+                                lightning: Current_Weather.weather.minutely[0].lightning, //현재 낙뢰
+                                warning: Current_Weather.common.alertYn, //현재 특보 유무
+                                typhoon: Current_Weather.common.stormYn, //현재 태풍
+                                time: Current_Weather.weather.minutely[0].timeObservation, // 불러온 시각
+                                death_prob: 0 //확률
                             }
+                            console.log("callback")
+                            console.log(info);
+                            
+                            //  ------------------------------ death_prob 정의 ------------------------------
 
                             info.death_prob += info.sky.substr(5)*1  //하늘 상태에 따라 확률 증가
     
@@ -71,12 +87,13 @@ module.exports = (server, app) => {
                             if(info.warning === "Y") // 특보 발령시 확률 증가
                                 info.death_prob += 5
     
-                //죽을 확률 계산(내맘대로)
+                            //죽을 확률 계산(내맘대로 커스텀)
                             info.death_prob =( 
-                    (info.heat/8) + (abs(info.sensible_temperature-15)/2) + (info.discomport/10) + (info.UV/5)
-                    + (info.windspd*3) + (info.rain/10) + (abs(info.current_temperature-15)/2) 
+                                (info.heat/8) + (Math.abs(info.sensible_temperature-15)/2) + (info.discomport/10) + (info.UV/5)
+                                + (info.windspd*3) + (info.rain/10) + (Math.abs(info.current_temperature-15)/2) 
                             );
 
+                            //이벤트 기반으로 일정 시간 간격으로 클라이언트에게 보낼 정보 
                             client_send={
                                 time : info.time,
                                 wind : info.windspd,
@@ -85,18 +102,29 @@ module.exports = (server, app) => {
                                 death : info.death_prob
                             };
 
-                //db에 저장
-                sql="INSERT INTO weatherInfo (time,wind,temperature,rain,prob) VALUES (?,?,?,?,?)";
-                db.query(sql,[client_send.time,client_send.wind,client_send.temperature,client_send.rain,client_send.death],(err,result)=>{
-                    if(err) console.log(err);
-                    socket.emit("weatherInfo_minutely_send_to_client",client_send); // 클라이언트에게 정보 담아서 이벤트 발산
-                })
-            }, 60 * 1000); //1분마다 호출
+                            //만약 날이 너무 안좋아서 확률이 100을 넘긴다면 100으로 예외처리
+                            if(client_send.death>=100){
+                                client_send.death=100;
+                            }
+
+                            console.log(client_send)
+                        } catch (err) {  //promise err or try err catch
+                            console.log("================Error Occured !!================\n",err);
+                        }
+                    }
+                    API_bundle();
+
+                    //     //db에 저장
+                    //     sql="INSERT INTO weatherInfo (time,wind,temperature,rain,prob) VALUES (?,?,?,?,?)";
+                    //     db.query(sql,[client_send.time,client_send.wind,client_send.temperature,client_send.rain,client_send.death],(err,result)=>{
+                    //         if(err) console.log(err);
+                    //         socket.emit("weatherInfo_minutely_send_to_client",client_send); // 클라이언트에게 정보 담아서 이벤트 발산
+                    //     })
+                    // }, 1* 1000); //1분마다 호출
                 });
 
                 socket.on('disconnecting', (reason) => {
                     clearInterval(API_CALL); //연결 종료시 해제
                 })
             })
-}
-
+        }

@@ -38,20 +38,19 @@
         ></div>
       </div>
     </div>
-<<<<<<< HEAD
 
     <script src="/socket.io/socket.io.js"></script>
     <script>
-        var socket = io.connect('/');
-        socket.emit("connection");
-        socket.on("weatherInfo_minutely_send_to_cliend",(info)=>{  //서버에서 client에게 메세지 전송
+        var socket = io('http://localhost',{transports: ['websocket']});
+        socket.emit("connection",()=>{
+          console.log("connected");
+        });
+        socket.on("weatherInfo_minutely_send_to_client",(info)=>{  //서버에서 client에게 메세지 전송
             console.log(info);
         });
     </script>
 
-=======
     
->>>>>>> 0f5edf6316e2444f5fd2a050fed5e771e5141733
     <!-- 첫번째 그래프 -->
     <script type="text/javascript">
       Highcharts.chart("container1", {