EDIT: 12 mamuls in one Carousel

@@ -26,7 +26,7 @@ const checkMamul = (client, userId) => {
   db.getKeywordsByUserId(userId).then((keywords) => {
     for (let i = 0, pending = Promise.resolve(); i < keywords.length; i++) {
       pending = marketMultiSearch(keywords[i]).then((res) => {
-        client.multicast([userId], [setCarouselMessage(res, keywords[i])]);
+        client.pushMessage(userId, setCarouselMessage(res, keywords[i]));
       });
     }
   });

@@ -4,9 +4,19 @@ function setCarouselMessage(mamuls, keyword) {
   let flexMessages = [];
   let flexMessage = {};
   if (
-    mamuls[0] == undefined &&
-    mamuls[1] == undefined &&
-    mamuls[2] == undefined
+    mamuls[0] == undefined
+    // &&
+    // mamuls[1] == undefined &&
+    // mamuls[2] == undefined &&
+    // mamuls[3] == undefined &&
+    // mamuls[4] == undefined &&
+    // mamuls[5] == undefined &&
+    // mamuls[6] == undefined &&
+    // mamuls[7] == undefined &&
+    // mamuls[8] == undefined &&
+    // mamuls[9] == undefined &&
+    // mamuls[10] == undefined &&
+    // mamuls[11] == undefined
   ) {
     let nonMamulMessage = {
       type: "flex",

-const { daangnSingleSearch } = require("./daangnSearch");
-const { bunjangSingleSearch } = require("./bunjangSearch");
-const { joongnaSingleSearch } = require("./joongnaSearch");
+const { daangnMultiSearch } = require("./daangnSearch");
+const { bunjangMultiSearch } = require("./bunjangSearch");
+const { joongnaMultiSearch } = require("./joongnaSearch");
 const setCarouselMessage = require("../message/setCarouselMessage");
 
 const marketMultiSearch = (keyword) => {
   const result = [];
   return new Promise((resolve, reject) => {
-    daangnSingleSearch(keyword).then((res) => {
-      result.push(res);
-      bunjangSingleSearch(keyword).then((res) => {
-        result.push(res);
-        joongnaSingleSearch(keyword).then((res) => {
-          result.push(res);
+    daangnMultiSearch(keyword).then((res) => {
+      if (res !== undefined) {
+        for (let i = 0; i < res.length && i < 4; i++) {
+          result.push(res[i]);
+        }
+      }
+      bunjangMultiSearch(keyword).then((res) => {
+        if (res !== undefined) {
+          for (let i = 0; i < res.length && i < 4; i++) {
+            result.push(res[i]);
+          }
+        }
+        joongnaMultiSearch(keyword).then((res) => {
+          if (res !== undefined) {
+            for (let i = 0; i < res.length && i < 4; i++) {
+              result.push(res[i]);
+            }
+          }
           resolve(result);
         });
       });