post 함수 버그 수정

post함수의 비동기로 인한 write, read 함수 에러 내용수정

@@ -38,8 +38,8 @@ app.get(['/food', '/food/:id'], function(req, res) {
 
 //사용자가 호출한 search page
 app.post('/food/search', function(req, res) {
-  var title=req.body.title;
-  res.redirect("https://www.google.com/search?q="+title+"&oq="+title+"&aqs=chrome..69i57j0l3j69i60j69i61.3149j0j9&sourceid=chrome&ie=UTF-8")
+  var title = req.body.title;
+  res.redirect("https://www.google.com/search?q=" + title + "&oq=" + title + "&aqs=chrome..69i57j0l3j69i60j69i61.3149j0j9&sourceid=chrome&ie=UTF-8")
 })
 
 //사용자가 호출한 recommendation page
@@ -60,13 +60,14 @@ app.post('/food/recommendation', function(req, res) {
         if ((!price || users[foods]['price'] == price) && (!shape || users[foods]['shape'] == shape) && (!kinds || users[foods]['kinds'] == kinds)) {
           list.food.push(foods);
         }
+        // $('<li>').text(foods).appendTo('#users');
       }
+
       fs.writeFile('data/temp.json', JSON.stringify(list), "utf8", function(err) {
         if (err) {
           console.log(err);
           res.status(500).send('Internal Server Error');
-        }
-      });
+        } else {
 
           fs.readFile('data/temp.json', 'utf8', function(err, data) {
             if (err) {
@@ -74,25 +75,25 @@ app.post('/food/recommendation', function(req, res) {
               res.status(500).send('Internal Server Error');
             } else {
               var food = JSON.parse(data)['food'];
-          var length=food.length;
+              var length = food.length;
               var rand = Math.floor(Math.random() * length); //(Math.random() * (max - min)) + min
-          for (var i = 0; i < length; i++) {
-            if (rand == i) {
-              var food_value = food[i];
-              break;
-              // $('<li>').text(foods).appendTo('#users');
-            }
-          }
+              var food_value = food[rand];
+              console.log(rand);
+
               res.render('print.ejs', {
                 title: 'Recommendation',
                 description: 'We recommend this...',
                 randvalue: food_value
-          });
+              });//rander closed
             }
-      });
+          });//readFile closed
         }
-  });
-})
+      });//writeFile closed
+
+    }
+  });//readFile closed
+});//post closed
+
 
 
 app.listen(3000, function() {