diff --git a/config/routes/main.js b/config/routes/main.js
index 3d0c9bf..3ae545b 100644
--- a/config/routes/main.js
+++ b/config/routes/main.js
@@ -1,17 +1,6 @@
 const ObjectID = require('mongodb').ObjectID;
 const fs = require('fs');
 
-function indexRoute(req, res, dbo) {
-    dbo.collection('categories').find().toArray((err, result) => {
-        const categories = result.map(category => category.title[0].toUpperCase() + category.title.slice(1));
-        res.render('main/index', {
-            pageName: 'index',
-            title: 'Digital-Store | Главная',
-            categories
-        });
-    });
-}
-
 // API
 function getItemsRoute(req, res, dbo) {
     if (req.query.token === 'yYNfW8ynVO18L1TW5qIkILM1WtWgrVZz') {
@@ -104,69 +93,100 @@ function getItemsRoute(req, res, dbo) {
     }
 }
 
-function onePageItemRoute(req, res, dbo) {
-    try {
-        dbo.collection('items').find({_id: ObjectID(req.params.id)}).toArray((err, result) => {
-            const item = result[0];
-            try {
-                dbo.collection('categories').find({title: item.category}).toArray((err, result) => {
-                    const category = result[0];
-                    res.render('main/product', {
-                        title: item.title,
-                        image: category.img,
-                        count: item.count,
-                        category: item.category[0].toUpperCase() + item.category.slice(1),
-                        price: item.price,
-                        description: item.description,
-                        date: item.date,
-                        id: item._id,
-                        type: category.type,
-                        format: category.format
-                    })
-                });
-            } catch {
-                res.render('main/404');
-            }
-        })
-    } catch {
-        res.render('main/404');
-    }
-}
-
-function howToBuyRoute(req, res) {
-    res.render('main/how-to-buy', {
-        pageName: 'how-to-buy',
-        title: 'Digital-Store | Как купить товар'
-    });
-}
-
-function contactsRoute(req, res) {
-    res.render('main/contacts', {
-        pageName: 'contacts',
-        title: 'Digital-Store | Контакты'
-    });
-}
-
-function commentsRoute(req, res) {
-    res.render('main/comments', {
-        pageName: 'comments',
-        title: 'Digital-Store | Отзывы'
-    });
-}
-
-function myOrdersRoute(req, res) {
-    res.render('main/my-orders', {
-        pageName: 'my-orders',
-        title: 'Digital-Store | Мои покупки'
-    });
-}
-
 module.exports = function (server, db) {
-    server.get('/', (req, res) => indexRoute(req, res, db));
+    server.get('/', (req, res) => {
+        try {
+            db.collection('categories').find().toArray((err, result) => {
+                const categories = result.map(category => category.title[0].toUpperCase() + category.title.slice(1));
+                res.render('main/index', {
+                    pageName: 'index',
+                    title: 'Digital-Store | Главная',
+                    categories
+                });
+            });
+        } catch (error) {
+            res.render('main/404');
+        }
+    });
+    server.get('/how-to-buy', (req, res) => {
+        try {
+            res.render('main/how-to-buy', {
+                pageName: 'how-to-buy',
+                title: 'Digital-Store | Как купить товар'
+            });
+        } catch (error) {
+            res.send('main/404');
+        }
+    });
+    server.get('/contacts', (req, res) => {
+        try {
+            res.render('main/contacts', {
+                pageName: 'contacts',
+                title: 'Digital-Store | Контакты'
+            });
+        } catch (error) {
+            res.send('main/404');
+        }
+    });
+    server.get('/comments', (req, res) => {
+        try {
+            res.render('main/comments', {
+                pageName: 'comments',
+                title: 'Digital-Store | Отзывы'
+            });
+        } catch (error) {
+            res.render('main/404');
+        }
+    });
+    server.get('/my-orders', (req, res) => {
+        try {
+            res.render('main/my-orders', {
+                pageName: 'my-orders',
+                title: 'Digital-Store | Мои покупки'
+            });
+        } catch (error) {
+            res.render('main/404');
+        }
+    });
+    server.get('/product/:id', async (req, res) => {
+        const product = new Promise((resolve, reject) => {
+            db.collection('items').find({
+                    _id: ObjectID(req.params.id)
+                }).toArray()
+                .then((items) => {
+                    const item = items.find(item => item);
+                    resolve(item);
+                });
+        });
+
+        product.then((item) => {
+            return new Promise((resolve, reject) => {
+                db.collection('categories').find({title: item.category}).toArray()
+                    .then((categories) => {
+                        const category = categories.find(category => category);
+                        resolve({item,category});
+                    });
+            })
+        })
+        .then(((data) => {
+            const item = data.item,
+                category = data.category;
+            res.render('main/product', {
+                title: item.title,
+                image: category.img,
+                count: item.count,
+                category: item.category[0].toUpperCase() + item.category.slice(1),
+                price: item.price,
+                description: item.description,
+                date: item.date,
+                id: item._id,
+                type: category.type,
+                format: category.format
+            });
+        }))
+        .catch((error) => {
+            res.render('main/404');
+        });
+    });
     server.get('/api', (req, res) => getItemsRoute(req, res, db));
-    server.get('/how-to-buy', (req, res) => howToBuyRoute(req, res, db));
-    server.get('/contacts', (req, res) => contactsRoute(req, res, db));
-    server.get('/comments', (req, res) => commentsRoute(req, res, db));
-    server.get('/my-orders', (req, res) => myOrdersRoute(req, res, db));
-    server.get('/product/:id', (req, res) => onePageItemRoute(req, res, db));
 }