diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..55541f1
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,10 @@
+PORT=4000
+SALT=secret
+DB_HOST=127.0.0.1
+DB_USER=admin
+DB_PASSWORD=test
+DB_NAME=six-cities
+DB_MAX_RETRIES=3
+DB_RETRY_TIMEOUT=1000
+UPLOAD_DIRECTORY=upload
+JWT_SECRET=super-secret!
diff --git a/Workflow.md b/Workflow.md
index 4977046..393d8ec 100644
--- a/Workflow.md
+++ b/Workflow.md
@@ -1,16 +1,82 @@
 # Как работать над проектом
 
-## Окружение
+## Запуск проекта
 
-Для удобства работы над проектом используются инструменты из **Node.js** и **npm**. Все необходимые настройки произведены. Убедитесь, что на рабочем компьютере установлен актуальный LTS релиз Node.js**. Актуальная версия **Node.js** указана в файле `package.json` в поле `node`. Затем, в терминале, перейдите в директорию с проектом и _единожды_ запустите команду:
+Убедитесь, что на рабочем компьютере установлен актуальный LTS релиз **Node.js**. Актуальная версия **Node.js** указана в файле `package.json` в поле `node`.
+
+### Установите зависимости
+
+Выполните команду
 
 ```bash
 npm install
 ```
 
-Команда запустит процесс установки зависимостей проекта из **npm**.
+### Разверните базу данных MongoDB
+
+В проекте используется база данных **MongoDB** версии 4.2.
+
+Если вы используете Docker, воспользуйтесь файлом `docker-compose.dev.yml`, расположенным в корне проекта, для быстрого разворачивания базы данных.
+
+### Наполните базу данных
+
+Запустите JSON-сервер с моковыми данными:
+
+```bash
+npm run mock:server
+```
+
+Сгенерируйте нужное количество предложений об аренде:
+
+```bash
+npm run cli -- --generate 100 ./mocks/mock-data.tsv http://localhost:3123/api                                                                                                                                                                                                                                         
+```
+
+Импортируйте данные в базу данных, используя настройки подключения из файла `docker-compose`:
+
+```bash
+npm run cli -- --import ./mocks/mock-data.tsv admin test 127.0.0.1 six-cities secret                                                                                                                                                                                                                                         
+```
+
+### Настройте переменные окружения
+
+В корне проекта находится файл `.env.example`. Скопируйте его содержимое в файл `.env` и настройте значения переменных.
+
+#### Переменные окружения
+
+```bash
+PORT=4000 - Порт для входящих соединений
 
-### Сценарии
+SALT=secret - Соль для хэширования паролей
+
+DB_HOST=127.0.0.1 - IP-адрес сервера базы данных (MongoDB)
+
+DB_USER=admin - Имя пользователя для подключения к базе данных
+
+DB_PASSWORD=test - Пароль для подключения к базе данных
+
+DB_PORT=27017 - Порт для подключения к базе данных (MongoDB)
+
+DB_NAME=six-cities - Имя базы данных (MongoDB)
+
+DB_MAX_RETRIES=3 - Максильмальное число попыток переподключения к БД
+
+DB_RETRY_TIMEOUT=1000 - Число миллисекунд между попытками подключения к БД
+
+UPLOAD_DIRECTORY=upload - Директория для хранения загружаемых пользователями файлов
+
+JWT_SECRET=super-secret! - Секрет для подписи JWT-токена
+```
+
+### Запустите проект
+
+Выполните команду
+
+```bash
+npm start
+```
+
+## Сценарии
 
 В `package.json` предопределено несколько сценариев.
 
@@ -66,25 +132,24 @@ npm start
 
 В процессе запуска проекта будет выполнен процесс «Сборки проекта» и запуска результирующего кода.
 
-#### Запустить JSON-server с моковыми данными
+#### Запустить проект в режиме разработки
 
 ```bash
-npm run mock:server
+npm run start:dev
 ```
 
-#### Запустить генерацию моковых данных
+#### Запустить JSON-server с моковыми данными
 
 ```bash
-npm run ts ./src/main.cli.ts -- --generate 100 ./mocks/mock-data.tsv http://localhost:3123/api                                                                                                                                                                                                                                         
+npm run mock:server
 ```
 
-#### Наполнить базу моковыми данными
+#### Запустить консольную утилиту
 
 ```bash
-npm run ts ./src/main.cli.ts -- --import ./mocks/mock-data.tsv admin test 127.0.0.1 six-cities secret                                                                                                                                                                                                                                         
+npm run cli
 ```
 
-
 ## Структура проекта
 
 ### Директория `src`
diff --git a/package.json b/package.json
index be3d408..c0ccbb7 100644
--- a/package.json
+++ b/package.json
@@ -16,7 +16,8 @@
     "compile": "tsc -p tsconfig.json",
     "clean": "rimraf dist",
     "ts": "ts-node",
-    "mock:server": "json-server ./mocks/mock-server-data.json --port 3123"
+    "mock:server": "json-server ./mocks/mock-server-data.json --port 3123",
+    "cli": "ts-node ./src/main.cli.ts"
   },
   "devDependencies": {
     "@types/convict": "6.1.4",
diff --git a/specification/project.spec.yml b/specification/project.spec.yml
index 1099561..8c04734 100644
--- a/specification/project.spec.yml
+++ b/specification/project.spec.yml
@@ -11,6 +11,7 @@ tags:
   - name: offers
   - name: users
   - name: comments
+  - name: cities
 
 paths:
   /users/register:
@@ -38,9 +39,13 @@ paths:
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/validationError'
+                $ref: '#/components/schemas/validationError'
+        '403':
+          description: A logged in user can not register.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
         '409':
           description: A user with this email already exists.
           content:
@@ -59,7 +64,7 @@ paths:
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/authorizeUser'
+              $ref: '#/components/schemas/loginUser'
         required: true
       responses:
         '200':
@@ -68,8 +73,24 @@ paths:
             text/plain:
               schema:
                 type: string
+        '400':
+          description: Some of the provided information is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
         '401':
+          description: A user is not authorized.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
+        '404':
           description: A user with specified credentials was not found.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
     get:
       tags:
@@ -85,8 +106,12 @@ paths:
                 $ref: '#/components/schemas/user'
         '401':
           description: User session token is invalid.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
-  /users/{usedId}/avatar:
+  /users/avatar:
     post:
       tags:
         - users
@@ -95,6 +120,72 @@ paths:
       responses:
         '201':
           description: Image has been uploaded.
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  filepath:
+                    type: string
+                    example:
+                      upload/Uq-PzHXRZnm6NzYvfjFGA.png
+        '401':
+          description: A user is not authorized to upload an avatar.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
+
+  /users/favorites:
+    get:
+      tags:
+        - users
+        - offers
+      summary: List of favorite offers
+      description: Returns all the offers that have been added to favorites list by a current user.
+      responses:
+        '200':
+          description: List of offers.
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/offerPreview'
+        '401':
+          description: User is not authorized to view favorite offers.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
+
+    put:
+      tags:
+        - users
+        - offers
+      summary: Favorite the offer
+      description: Adds/removes an offer to/from the favorites list.
+      requestBody:
+        description: Information to mark an offer as favorite.
+        content:
+          application/json:
+            schema:
+              $ref: '#/components/schemas/favoriteOffer'
+      responses:
+        '204':
+          description: Offer's `favorite` status has been successfully updated
+        '400':
+          description: Some of the provided information is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
+        '401':
+          description: User is not authorized to favorite offers.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
   /offers:
     get:
@@ -143,11 +234,13 @@ paths:
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/validationError'
+                $ref: '#/components/schemas/validationError'
         '401':
           description: User is not authorized to create offers.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
   /offers/{offerId}:
     get:
@@ -169,8 +262,18 @@ paths:
             application/json:
               schema:
                 $ref: '#/components/schemas/offer'
+        '400':
+          description: Some of the provided information is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
         '404':
           description: Offer with the given ID does not exist.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
     patch:
       tags:
@@ -203,15 +306,25 @@ paths:
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/validationError'
+                $ref: '#/components/schemas/validationError'
         '401':
           description: User is not authorized to edit offers.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
         '403':
           description: User is not authorized to edit this offer.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
         '404':
           description: Offer with the given ID does not exist.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
     delete:
       tags:
@@ -228,12 +341,30 @@ paths:
       responses:
         '204':
           description: Offer has been successfully removed.
+        '400':
+          description: offerId is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
         '401':
           description: User is not authorized to delete offers.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
         '403':
           description: User is not authorized to delete this offer.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
         '404':
           description: Offer with the given ID does not exist.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
   /offers/{offerId}/comments:
     get:
@@ -258,65 +389,73 @@ paths:
                 type: array
                 items:
                   $ref: '#/components/schemas/comment'
+        '400':
+          description: offerId is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
         '404':
           description: Offer with the given ID does not exist.
-
-  /offers/favorites:
-    get:
-      tags:
-        - offers
-      summary: List of favorite offers
-      description: Returns all the offers that have been added to favorites list by a current user.
-      responses:
-        '200':
-          description: List of offers.
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/offerPreview'
-        '401':
-          description: User is not authorized to view favorite offers.
+                $ref: '#/components/schemas/generalError'
 
-  /offers/{offerId}/favorite:
-    put:
+  /comments:
+    post:
       tags:
+        - comments
         - offers
-      summary: Favorite the offer
-      description: Adds/removes an offer to/from the favorites list.
-      parameters:
-        - in: path
-          name: offerId
-          schema:
-            type: string
-            required: true
-            description: The ID of the offer.
+      summary: Comment creation
+      description: Adds a comments to a given offer.
       requestBody:
+        description: Information to create a new comment.
         content:
-          text/plain:
+          application/json:
             schema:
-              type: boolean
+              $ref: '#/components/schemas/createComment'
+        required: true
       responses:
-        '204':
-          description: Offer's `favorite` status has been successfully updated
+        '201':
+          description: Comments has been created. Comment object.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/comment'
+        '400':
+          description: Some of the provided information is not correct.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/validationError'
         '401':
-          description: User is not authorized to favorite offers.
+          description: User is not authorized to add comments.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
+        '404':
+          description: Offer with the given ID does not exist.
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/generalError'
 
-  /offers/premium:
+  /cities/:cityId/premium:
     get:
       tags:
+        - cities
         - offers
       summary: List of premium offers
       description: Returns a list of premium offers for a given city.
       parameters:
-        - in: query
-          name: city
+        - in: path
+          name: cityId
           schema:
             type: string
             required: true
             description: The city to get the premium offers for.
-            example: Paris
       responses:
         '200':
           description: List of premium offers.
@@ -324,42 +463,20 @@ paths:
             application/json:
               schema:
                 type: array
-                maxItems: 3
                 items:
                   $ref: '#/components/schemas/offerPreview'
-
-  /comments:
-    post:
-      tags:
-        - comments
-      summary: Comment creation
-      description: Adds a comments to a given offer.
-      requestBody:
-        description: Information to create a new comment.
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/createComment'
-        required: true
-      responses:
-        '201':
-          description: Comments has been created. Comment object.
+        '400':
+          description: cityId is not correct.
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/comment'
-        '400':
-          description: Some of the provided information is not correct.
+                $ref: '#/components/schemas/validationError'
+        '404':
+          description: City with the given ID does not exist.
           content:
             application/json:
               schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/validationError'
-        '401':
-          description: User is not authorized to add comments.
-        '404':
-          description: Offer with the given ID does not exist.
+                $ref: '#/components/schemas/generalError'
 
 components:
   schemas:
@@ -369,23 +486,24 @@ components:
         error:
           type: string
           description: A description of the error.
-          example: User already exists
+          example: Error description
 
     validationError:
       type: object
       properties:
-        message:
-          type: string
-          description: A description of the validation error.
-          example: Password too short
-        field:
-          type: string
-          description: The name of the field that failed validation.
-          example: password
-        code:
-          type: string
-          description: An error code associated with the validation error.
-          example: validation.createUser.password.tooShort
+        errors:
+          type: array
+          items:
+            type: object
+            properties:
+              field:
+                type: string
+                description: The name of the field that failed validation.
+                example: password
+              message:
+                type: string
+                description: A description of the validation error.
+                example: Password too short
 
     createUser:
       type: object
@@ -395,6 +513,10 @@ components:
           format: email
           required: true
           example: keks@htmlacademy.ru
+        avatarPath:
+          type: string
+          required: false
+          example: upload/ketUeXWH-AxExEduf3lSp.png
         name:
           type: string
           required: true
@@ -403,7 +525,7 @@ components:
           type: string
           format: password
           required: true
-          example: 123456
+          example: 12345678
         type:
           type: string
           enum:
@@ -411,36 +533,31 @@ components:
             - Pro
           required: true
           example: Pro
-        avatarPath:
-          type: string
-          required: false
-          example: https://s3.amazonaws.com/uifaces/faces/twitter/hugocornejo/128.jpg
 
-    authorizeUser:
+    loginUser:
       type: object
       properties:
         login:
           type: string
+          required: true
           example: keks@htmlacademy.ru
         password:
           type: string
-          example: 123456
+          required: true
+          example: 12345678
 
     user:
       type: object
       properties:
-        id:
-          type: string
-          example: 6329c3d6a04ab1061c6425ea
         email:
           type: string
           example: keks@htmlacademy.ru
+        avatarPath:
+          type: string
+          example: upload/ketUeXWH-AxExEduf3lSp.png
         name:
           type: string
           example: Keks
-        avatarPath:
-          type: string
-          example: https://s3.amazonaws.com/uifaces/faces/twitter/hugocornejo/128.jpg
         type:
           type: string
           enum:
@@ -448,6 +565,18 @@ components:
             - Pro
           example: Pro
 
+    favoriteOffer:
+      type: object
+      properties:
+        offerId:
+          type: string
+          required: true
+          example: 6329c3d6a04ab1061c6425ea
+        isFavorite:
+          type: boolean
+          required: true
+          example: true
+
     createOffer:
       type: object
       properties:
@@ -459,17 +588,11 @@ components:
           type: string
           required: true
           example: A quiet cozy and picturesque that hides behind a a river by the unique lightness of Amsterdam.
-        city:
+        postDate:
           type: string
-          enum:
-            - Amsterdam
-            - Brussels
-            - Cologne
-            - Dusseldorf
-            - Hamburg
-            - Paris
+          format: date-time
           required: true
-          example: Amsterdam
+          example: "2023-01-30T08:30:00Z"
         imagePreview:
           type: string
           required: true
@@ -487,14 +610,7 @@ components:
           required: true
           example: true
         housingType:
-          type: string
-          enum:
-            - Apartment
-            - House
-            - Room
-            - Hotel
-          required: true
-          example: Apartment
+          $ref: '#/components/schemas/housingType'
         roomAmount:
           type: integer
           required: true
@@ -538,6 +654,10 @@ components:
           type: string
           example: 6329c3d6a04ab1061c6425ea
           required: true
+        cityId:
+          type: string
+          example: 6329c3d6a04ab1061c6425ea
+          required: true
 
     updateOffer:
       type: object
@@ -545,26 +665,12 @@ components:
         title:
           type: string
           example: Beautiful & luxurious studio at great location
-          required: false
         description:
           type: string
           example: A quiet cozy and picturesque that hides behind a a river by the unique lightness of Amsterdam.
-          required: false
-        city:
-          type: string
-          enum:
-            - Amsterdam
-            - Brussels
-            - Cologne
-            - Dusseldorf
-            - Hamburg
-            - Paris
-          example: Amsterdam
-          required: false
         imagePreview:
           type: string
           example: https://s3.amasonaws.com/image-preview.png
-          required: false
         images:
           type: array
           minItems: 6
@@ -572,63 +678,35 @@ components:
           items:
             type: string
             example: https://s3.amasonaws.com/full-image.png
-          required: false
         isPremium:
           type: boolean
           example: true
-          required: false
         housingType:
-          type: string
-          enum:
-            - Apartment
-            - House
-            - Room
-            - Hotel
-          example: Apartment
-          required: false
+          $ref: '#/components/schemas/housingType'
         roomAmount:
           type: integer
           example: 3
-          required: false
         guestAmount:
           type: integer
           example: 5
-          required: false
         price:
           type: number
           format: float
           example: 100
-          required: false
         amenities:
-          type: array
-          items:
-            type: string
-            enum:
-              - Breakfast
-              - AirConditioning
-              - LaptopFriendlyWorkspace
-              - BabySeat
-              - Washer
-              - Towels
-              - Fridge
-            example: Fridge
-          required: false
+          $ref: '#/components/schemas/amenities'
         location:
-          type: object
-          properties:
-            latitude:
-              type: number
-              format: float
-              example: 48.85661
-            longitude:
-              type: number
-              format: float
-              example: 2.351499
-          required: false
+          $ref: '#/components/schemas/location'
+        cityId:
+          type: string
+          example: 6329c3d6a04ab1061c6425ea
 
     offer:
       type: object
       properties:
+        id:
+          type: string
+          example: 6329c3d6a04ab1061c6425ea
         title:
           type: string
           example: Beautiful & luxurious studio at great location
@@ -640,15 +718,7 @@ components:
           format: date-time
           example: 2023-10-11T13:15:56.868Z
         city:
-          type: string
-          enum:
-            - Amsterdam
-            - Brussels
-            - Cologne
-            - Dusseldorf
-            - Hamburg
-            - Paris
-          example: Amsterdam
+          $ref: '#/components/schemas/city'
         imagePreview:
           type: string
           example: https://s3.amasonaws.com/image-preview.png
@@ -670,13 +740,7 @@ components:
           format: float
           example: 4.2
         housingType:
-          type: string
-          enum:
-            - Apartment
-            - House
-            - Room
-            - Hotel
-          example: Apartment
+          $ref: '#/components/schemas/housingType'
         roomAmount:
           type: integer
           example: 3
@@ -688,29 +752,9 @@ components:
           format: float
           example: 100
         amenities:
-          type: array
-          items:
-            type: string
-            enum:
-              - Breakfast
-              - AirConditioning
-              - LaptopFriendlyWorkspace
-              - BabySeat
-              - Washer
-              - Towels
-              - Fridge
-            example: Fridge
+          $ref: '#/components/schemas/amenities'
         location:
-          type: object
-          properties:
-            latitude:
-              type: number
-              format: float
-              example: 48.85661
-            longitude:
-              type: number
-              format: float
-              example: 2.351499
+          $ref: '#/components/schemas/location'
         commentAmount:
           type: integer
           example: 5
@@ -723,48 +767,34 @@ components:
         id:
           type: string
           example: 6329c3d6a04ab1061c6425ea
-        price:
-          type: number
-          format: float
-          example: 100
         title:
           type: string
           example: Beautiful & luxurious studio at great location
         housingType:
-          type: string
-          enum:
-            - Apartment
-            - House
-            - Room
-            - Hotel
-          example: Apartment
-        isFavorite:
-          type: boolean
-          example: true
+          $ref: '#/components/schemas/housingType'
         postDate:
           type: string
           format: date-time
           example: 2023-10-11T13:15:56.868Z
         city:
-          type: string
-          enum:
-            - Amsterdam
-            - Brussels
-            - Cologne
-            - Dusseldorf
-            - Hamburg
-            - Paris
-          example: Amsterdam
+          $ref: '#/components/schemas/city'
         imagePreview:
           type: string
           example: https://s3.amasonaws.com/image-preview.png
         isPremium:
           type: boolean
           example: false
+        isFavorite:
+          type: boolean
+          example: true
         rating:
           type: number
           format: float
           example: 4.2
+        price:
+          type: number
+          format: float
+          example: 100
         commentAmount:
           type: integer
           example: 5
@@ -774,8 +804,6 @@ components:
       properties:
         text:
           type: string
-          minLength: 5
-          maxLength: 1024
           required: true
         rating:
           type: integer
@@ -785,10 +813,6 @@ components:
           type: string
           example: 6329c3d6a04ab1061c6425ea
           required: true
-        authorId:
-          type: string
-          example: 6329c3d6a04ab1061c6425ea
-          required: true
 
     comment:
       type: object
@@ -799,12 +823,59 @@ components:
         text:
           type: string
           example: Nice property!
+        rating:
+          type: integer
+          example: 4
         postDate:
           type: string
           format: date-time
           example: 2023-10-11T13:15:56.868Z
-        rating:
-          type: integer
-          example: 4
         author:
           $ref: '#/components/schemas/user'
+
+    amenities:
+      type: array
+      items:
+        type: string
+        enum:
+          - Breakfast
+          - AirConditioning
+          - LaptopFriendlyWorkspace
+          - BabySeat
+          - Washer
+          - Towels
+          - Fridge
+        example: Fridge
+
+    housingType:
+      type: string
+      enum:
+        - Apartment
+        - House
+        - Room
+        - Hotel
+      example: Apartment
+
+    location:
+      type: object
+      properties:
+        latitude:
+          type: number
+          format: float
+          example: 48.85661
+        longitude:
+          type: number
+          format: float
+          example: 2.351499
+
+    city:
+      type: object
+      properties:
+        id:
+          type: string
+          example: 6329c3d6a04ab1061c6425ea
+        name:
+          type: string
+          example: Amsterdam
+        location:
+          $ref: '#/components/schemas/location'
diff --git a/src/cli/commands/help.command.ts b/src/cli/commands/help.command.ts
index ee4445c..d0cd573 100644
--- a/src/cli/commands/help.command.ts
+++ b/src/cli/commands/help.command.ts
@@ -10,20 +10,16 @@ export class HelpCommand implements Command {
     console.info(`Программа для подготовки данных для REST API сервера.
 
 ${chalk.bold('ПРИМЕР')}
-    ${chalk.bold('cli.js')} --${chalk.underline(
-  'command',
-)} [...${chalk.underline('arguments')}]
+    ${chalk.bold('npm run cli')} -- --${chalk.underline('command')} [...${chalk.underline('arguments')}]
 
 ${chalk.bold('КОМАНДЫ')}
     ${chalk.bold('--version')}
         Выводит номер версии
     ${chalk.bold('--help')}
         Печатает этот текст
-    ${chalk.bold('--import')} ${chalk.underline('path')}
+    ${chalk.bold('--import')} ${chalk.underline('path')} ${chalk.underline('db_login')} ${chalk.underline('db_pass')} ${chalk.underline('db_host')} ${chalk.underline('db_name')} ${chalk.underline('salt')}
         Импортирует данные из TSV
-    ${chalk.bold('--generate')} ${chalk.underline('n')} ${chalk.underline(
-  'path',
-)} ${chalk.underline('url')}
+    ${chalk.bold('--generate')} ${chalk.underline('n')} ${chalk.underline('path')} ${chalk.underline('url')}
         Генерирует произвольное количество тестовых данных
 `);
   }
diff --git a/src/shared/helpers/parse.ts b/src/shared/helpers/parse.ts
index f45bc69..742c3f5 100644
--- a/src/shared/helpers/parse.ts
+++ b/src/shared/helpers/parse.ts
@@ -7,7 +7,3 @@ export function parseAsInteger(param: unknown): number | null {
 
   return Number.isInteger(parsedParam) ? parsedParam : null;
 }
-
-export function parseAsString(param: unknown): string | null {
-  return typeof param === 'string' ? param : null;
-}
diff --git a/src/shared/libs/rest/middleware/validate-dto.middleware.ts b/src/shared/libs/rest/middleware/validate-dto.middleware.ts
index 8915ebd..3250753 100644
--- a/src/shared/libs/rest/middleware/validate-dto.middleware.ts
+++ b/src/shared/libs/rest/middleware/validate-dto.middleware.ts
@@ -16,7 +16,12 @@ export class ValidateDtoMiddleware implements Middleware {
     const errors = await validate(dtoInstance);
 
     if (errors.length > 0) {
-      res.status(StatusCodes.BAD_REQUEST).send(errors);
+      res.status(StatusCodes.BAD_REQUEST).send({
+        errors: errors.map((error) => ({
+          field: error.property,
+          message: Object.values(error.constraints ?? {}).join(';')
+        }))
+      });
       return;
     }
 
diff --git a/src/shared/modules/auth/auth.exception-filter.ts b/src/shared/modules/auth/auth.exception-filter.ts
index 771dd03..78c5193 100644
--- a/src/shared/modules/auth/auth.exception-filter.ts
+++ b/src/shared/modules/auth/auth.exception-filter.ts
@@ -4,6 +4,7 @@ import { ExceptionFilter } from '../../libs/rest/index.js';
 import { Logger } from '../../libs/logger/index.js';
 import { Component } from '../../types/index.js';
 import { BaseUserException } from './errors/index.js';
+import { createErrorObject } from '../../helpers/index.js';
 
 @injectable()
 export class AuthExceptionFilter implements ExceptionFilter {
@@ -22,9 +23,6 @@ export class AuthExceptionFilter implements ExceptionFilter {
     }
 
     this.logger.error(`[AuthModule] ${error.message}`, error);
-    res.status(error.httpStatusCode).json({
-      type: 'AUTHORIZATION',
-      error: error.message,
-    });
+    res.status(error.httpStatusCode).json(createErrorObject(error.message));
   }
 }
diff --git a/src/shared/modules/user/rdo/logged-user.rdo.ts b/src/shared/modules/user/rdo/logged-user.rdo.ts
deleted file mode 100644
index 543bd7d..0000000
--- a/src/shared/modules/user/rdo/logged-user.rdo.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { Expose } from 'class-transformer';
-
-export class LoggedUserRdo {
-  @Expose()
-  public token: string;
-
-  @Expose()
-  public email: string;
-}
diff --git a/src/shared/modules/user/user.controller.ts b/src/shared/modules/user/user.controller.ts
index 7394955..0cf1c1d 100644
--- a/src/shared/modules/user/user.controller.ts
+++ b/src/shared/modules/user/user.controller.ts
@@ -19,7 +19,6 @@ import { UserService } from './user-service.interface.js';
 import { CreateUserRequest } from './types/create-user-request.type.js';
 import { LoginUserRequest } from './types/login-user-request.type.js';
 import { UserRdo } from './rdo/user.rdo.js';
-import { LoggedUserRdo } from './rdo/logged-user.rdo.js';
 import { CreateUserDto } from './dto/create-user.dto.js';
 import { LoginUserDto } from './dto/login-user.dto.js';
 import { FavoriteOfferDto } from './dto/favorite-offer.dto.js';
@@ -118,11 +117,7 @@ export class UserController extends BaseController {
   public async login({ body }: LoginUserRequest, res: Response): Promise<void> {
     const user = await this.authService.verify(body);
     const token = await this.authService.authenticate(user);
-    const responseData = fillDTO(LoggedUserRdo, {
-      email: user.email,
-      token,
-    });
-    this.ok(res, responseData);
+    this.ok(res, token);
   }
 
   public async checkToken(