postman에 코인리스트 10개를 업로드 할 수 있다

@@ -7,33 +7,42 @@ app.use(bodyParser.urlencoded({ extended: false }));
 app.use(bodyParser.json());
 
 app.get('/price', function(req, res) {
-    var arr ;
-    var responseList = new Array();
     fs.readFile('coin_name.txt', 'utf8', function(err,data){
         arr = data.split(",");
-        console.log(arr);
-        for(var i=0;i<1;i++){
+       // console.log(arr);
+        var responseList = new Array();
+        function print_coin(){
+            var promise = new Promise(function(resolve,reject){
+                for(i=0;i<10;i++){
+                    (function(i){
+                        setTimeout(function(){
                         const url = 'https://api.upbit.com/v1/candles/minutes/1?market='+arr[i]+'&count=1';
                         const options = {method: 'GET', headers: {Accept: 'application/json'}};
-
                         var coinJson = new Object();
-
                         fetch(url, options)
-            .then(req => req.json())
+                        .then(res => res.json())
                         .then(json => {
                             coinJson.coin = arr[i];
-                coinJson.price = json[0]["trade_price"];
+                            coinJson.price = json[0].trade_price;
                             responseList.push(coinJson);
+                            //console.log(responseList)
+                            if(i>8){
+                                resolve(responseList);
+                            }
                         })
                         .catch(err => console.error('error:' + err));
-
+                        },i*180);
+                   })(i);
                 }
-        
-
-    }).then(function(){
-        jsonData = JSON.stringify(responseList);
-        res.send(jsonData);
             });
+            return promise;
+        } 
+        print_coin().then(function(resList){
+            res.send(resList);
+        });
+         
+    })  
 })
 var server = app.listen(8082);
 console.log("Server Created..");
+

 const fetch = require('node-fetch');
 var fs = require('fs');
 
-var responseList = new Array();
+
+
 fs.readFile('coin_name.txt', 'utf8', function(err,data){
     arr = data.split(",");
-    
    // console.log(arr);
-    
-    for(var i=0;i<10;i++){
+    var responseList = new Array();
+    function print_coin(){
+        var promise = new Promise(function(resolve,reject){
+            for(i=0;i<10;i++){
                 (function(i){
                     setTimeout(function(){
                     const url = 'https://api.upbit.com/v1/candles/minutes/1?market='+arr[i]+'&count=1';
                     const options = {method: 'GET', headers: {Accept: 'application/json'}};
-
                     var coinJson = new Object();
                     fetch(url, options)
                     .then(res => res.json())
                     .then(json => {
                         coinJson.coin = arr[i];
                         coinJson.price = json[0].trade_price;
-            })
-            .then(function(){
                         responseList.push(coinJson);
-                console.log(responseList);
-                
+                        //console.log(responseList)
+                        if(i>8){
+                            resolve(responseList);
+                        }
                     })
                     .catch(err => console.error('error:' + err));
-            },10);
+                    },i*180);
                })(i);
-        
             }
+        });
+        return promise;
+    } 
+    print_coin().then(function(resList){
+        console.log(resList);
+    });
      
 })

+// for(var i =0; i<10;i++){
+//     (function(i){
+//         setTimeout(function(){
+//             console.log(i);
+//         },10);
+//     })(i);
+// }
+
+ function f() {
+     var promise = new Promise(function(resolve,reject) {
+        for(var i =0; i<10;i++){
+            (function(i){
+                setTimeout(function(){
+                    if(i>8){
+                        resolve(i);
+                    }
+                },10);
+            })(i);
+        }
+     });
+     return promise;
+ }
+ f().then(function(a) {
+    console.log(a);
+ });
+
+ 
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