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@@ -5,20 +5,24 @@ const convert = require("xml-js");
 const fs = require("fs");
 const xml2js = require("xml2js");
 
-// http://apis.data.go.kr/B090041/openapi/service/SpcdeInfoService/getHoliDeInfo?solYear=2019&solMonth=03&ServiceKey=서비스키
+// Modify the values as needed
+var year = "2022";
+var month = "09";
+var operation = "getHoliDeInfo";
 
+// Do not modify the values
 var SERVEICE_KEY =
   "qBtJy2Prw8CCnAiijUM7VkuaA9MZozHuiQI4FbEGYdUDPz4%2FM%2FuxegGjNBWK0aWQHvSslVHwIZQwNWh57WgRTA%3D%3D";
-var operation = "getHoliDeInfo";
 var url =
   "http://apis.data.go.kr/B090041/openapi/service/SpcdeInfoService/" +
   operation;
-var queryParams = "?" + "solYear" + "=" + "2022";
-queryParams += "&" + "solMonth" + "=" + "09";
+var queryParams = "?" + "solYear" + "=" + year;
+queryParams += "&" + "solMonth" + "=" + month;
 queryParams += "&" + "ServiceKey" + "=" + SERVEICE_KEY;
 let requestUrl = url + queryParams;
+
+// Empty variables
 var text = "";
-var text2 = "";
 var dateName = [];
 var locdate = [];
 var tempArr = [];
@@ -33,17 +37,19 @@ app.get("/", function (req, res) {
       console.log("err => " + err);
     } else {
       if (res.statusCode == 200) {
+        // Read url success
         var result = body;
         var xmlToJson = convert.xml2json(result, { compact: true, spaces: 4 });
         console.log(result);
         console.log(xmlToJson);
-        fs.writeFileSync("holi.json", xmlToJson);
-        fs.writeFileSync("holi.xml", result);
+        fs.writeFileSync("holi.xml", result); // Create/Modify holi.xml
+        fs.writeFileSync("holi.json", xmlToJson); // Create/Modify holi.json
         var parser = new xml2js.Parser();
         parser.parseString(result, function (err, res) {
           console.log(res);
           text = JSON.stringify(res);
           console.log(text);
+          // Get dataName method
           dateName = [];
           var idx = text.indexOf("dateName", 0);
           while (idx != -1) {
@@ -56,6 +62,7 @@ app.get("/", function (req, res) {
             idx = text.indexOf("dateName", idx + 1);
           }
           console.log(dateName);
+          // Get locdate method
           locdate = [];
           idx = text.indexOf("locdate", 0);
           while (idx != -1) {
@@ -68,7 +75,7 @@ app.get("/", function (req, res) {
             idx = text.indexOf("locdate", idx + 1);
           }
           console.log(locdate);
-          text2 = dateName.toString() + "&" + locdate.toString();
+          // Create tempArr to save dateName and locdate at once
           tempArr = [];
           tempArr.push(dateName);
           tempArr.push(locdate);
@@ -77,12 +84,14 @@ app.get("/", function (req, res) {
       }
     }
   });
+  // Send data from nodejs to ejs
   res.render("data.ejs", { data: tempArr }, function (err, html) {
     if (err) {
       console.log(err);
     }
-    res.end(html); // 응답 종료
+    res.end(html); // End response
   });
+  // send data.ejs
   res.sendFile(__dirname + "/views/data.ejs");
 });