코인리스트 모두 받아와서 업데이트

@@ -13,7 +13,8 @@ app.get('/price', function(req, res) {
         var responseList = new Array();
         function print_coin(){
             var promise = new Promise(function(resolve,reject){
-                for(i=0;i<10;i++){
+                for(j=0;j<arr.length/10;j++){
+                    for(i=j*10;i<(j+1)*10;i++){
                         (function(i){
                             setTimeout(function(){
                             const url = 'https://api.upbit.com/v1/candles/minutes/1?market='+arr[i]+'&count=1';
@@ -25,8 +26,8 @@ app.get('/price', function(req, res) {
                                 coinJson.coin = arr[i];
                                 coinJson.price = json[0].trade_price;
                                 responseList.push(coinJson);
-                            //console.log(responseList)
-                            if(i>8){
+                                console.log(i)
+                                if(i>115){
                                     resolve(responseList);
                                 }
                             })
@@ -34,13 +35,14 @@ app.get('/price', function(req, res) {
                             },i*180);
                        })(i);
                     }
+                }
+                
             });
             return promise;
         } 
         print_coin().then(function(resList){
             res.send(resList);
         });   
-         
     })  
 })
 var server = app.listen(8082);

@@ -7,9 +7,8 @@ fs.readFile('coin_name.txt', 'utf8', function(err,data){
     arr = data.split(",");
    // console.log(arr);
     var responseList = new Array();
-    function print_coin(){
-        var promise = new Promise(function(resolve,reject){
-            for(i=0;i<10;i++){
+    for(j=0;j<2;j++){
+        for(i=j*10;i<(j+1)*10;i++){
             (function(i){
                 setTimeout(function(){
                 const url = 'https://api.upbit.com/v1/candles/minutes/1?market='+arr[i]+'&count=1';
@@ -21,20 +20,14 @@ fs.readFile('coin_name.txt', 'utf8', function(err,data){
                     coinJson.coin = arr[i];
                     coinJson.price = json[0].trade_price;
                     responseList.push(coinJson);
-                        //console.log(responseList)
-                        if(i>8){
-                            resolve(responseList);
-                        }
+                   // console.log(responseList)
+                    console.log(i)
                 })
                 .catch(err => console.error('error:' + err));
                 },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);
+const delay = () => {
+    const randomDelay = Math.floor(Math.random() * 4) * 100
+    return new Promise(resolve => setTimeout(resolve, randomDelay))
   }
-     });
-     return promise;
- }
- f().then(function(a) {
-    console.log(a);
- });
   
+const loop = async (list) => {
+console.log("시작")
+const promises = list.map(async data => {
+    return await delay()
+    .then(() => data)
+})
+
+const results = await Promise.all(promises)
+results.forEach(data => console.log(data))
+console.log("끝")
+}
 
+const list = [1, 2, 3, 4, 5, 6, 7]
+loop(list)
\ No newline at end of file