diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..b74a6b1
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,5 @@
+DB_HOST=localhost
+DB_PORT=5432
+DB_NAME=user-service-prod
+DB_USER=user-service
+DB_PASSWORD=user-service-password
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
index 2c2a750..49f0fac 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,5 +1,6 @@
 .env*
 output/
+.DS_Store
 .idea/
 .nyc_output/
 coverage/
diff --git a/Makefile b/Makefile
index 1dde4fa..ed2a8b5 100644
--- a/Makefile
+++ b/Makefile
@@ -12,6 +12,7 @@ COMPOSE := docker-compose -f docker-compose.yml
 install:
 	@echo "--- Installing dependencies."
 	npm install
+	npm run build
 
 .PHONY: build
 build:
diff --git a/app/.gitignore b/app/.gitignore
new file mode 100644
index 0000000..a6c7c28
--- /dev/null
+++ b/app/.gitignore
@@ -0,0 +1 @@
+*.js
diff --git a/app/application.js b/app/application.js
deleted file mode 100644
index a4c84b0..0000000
--- a/app/application.js
+++ /dev/null
@@ -1,19 +0,0 @@
-const express    = require('express')();
-const bodyParser = require('body-parser');
-
-const errorHandler       = require('app/util/errorHandler');
-const ApplicationContext = require('app/applicationContext');
-const UserRouter         = require('app/domain/user/userRouter');
-const GroupRouter        = require('app/domain/group/groupRouter');
-
-const applicationContext = new ApplicationContext();
-
-const userRouter  = new UserRouter(applicationContext.userValidation, applicationContext.userController);
-const groupRouter = new GroupRouter(applicationContext.groupValidation, applicationContext.groupController);
-
-express.use(bodyParser.json());
-express.use('/users', userRouter);
-express.use('/groups', groupRouter);
-express.use(errorHandler);
-
-module.exports = express;
diff --git a/app/application.ts b/app/application.ts
new file mode 100644
index 0000000..0bd6889
--- /dev/null
+++ b/app/application.ts
@@ -0,0 +1,20 @@
+import UserRouter from "./domain/user/userRouter";
+import GroupRouter from "./domain/group/groupRouter";
+import errorHandler from "./util/errorHandler";
+import ApplicationContext from "./applicationContext";
+
+const express = require('express')();
+const bodyParser = require('body-parser');
+
+const applicationContext = new ApplicationContext();
+
+const userRouter = new UserRouter(applicationContext.userValidation, applicationContext.userController);
+const groupRouter = new GroupRouter(applicationContext.groupValidation, applicationContext.groupController);
+
+express.use(bodyParser.json());
+express.use('/users', userRouter);
+express.use('/groups', groupRouter);
+express.use(errorHandler);
+
+export default express;
+module.exports = express;
diff --git a/app/applicationContext.js b/app/applicationContext.ts
similarity index 53%
rename from app/applicationContext.js
rename to app/applicationContext.ts
index cfb1e2c..a75ec72 100644
--- a/app/applicationContext.js
+++ b/app/applicationContext.ts
@@ -1,16 +1,19 @@
-const knex = require('../database/knex');
-
-const UserRepository = require('app/domain/user/userRepository');
-const UserService    = require('app/domain/user/userService');
-const UserController = require('app/domain/user/userController');
-const UserValidation = require('app/domain/user/userValidation');
+import UserController from "./domain/user/userController";
+import UserValidation from "./domain/user/userValidation";
+import GroupController from "./domain/group/groupController";
+import GroupValidation from "./domain/group/groupValidation";
+import UserRepository from "./domain/user/userRepository";
+import UserService from "./domain/user/userService";
+import GroupRepository from "./domain/group/groupRepository";
+import GroupService from "./domain/group/groupService";
 
-const GroupRepository = require('app/domain/group/groupRepository');
-const GroupService    = require('app/domain/group/groupService');
-const GroupController = require('app/domain/group/groupController');
-const GroupValidation = require('app/domain/group/groupValidation');
+const knex = require('../database/knex');
 
-class ApplicationContext {
+export default class ApplicationContext {
+    public userController: UserController;
+    public userValidation: UserValidation;
+    public groupController: GroupController;
+    public groupValidation: GroupValidation;
 
     constructor() {
         const userRepository = new UserRepository(knex);
diff --git a/app/domain/group/groupController.js b/app/domain/group/groupController.ts
similarity index 61%
rename from app/domain/group/groupController.js
rename to app/domain/group/groupController.ts
index 0cf5851..04390d8 100644
--- a/app/domain/group/groupController.js
+++ b/app/domain/group/groupController.ts
@@ -1,31 +1,33 @@
+import GroupService from "./groupService";
+import {Request, Response} from "express";
+
 const HttpStatus = require('http-status-codes');
 
-class GroupController {
-    constructor(groupService) {
-        this.groupService = groupService
+export default class GroupController {
+    constructor(private groupService: GroupService) {
     }
 
-    async getAll(request, response) {
+    async getAll(request: Request, response: Response) {
         const users = await this.groupService.getAll();
         response.status(HttpStatus.OK).json(users);
     }
 
-    async get(request, response) {
+    async get(request: Request, response: Response) {
         const user = await this.groupService.get(request.params.id);
         response.status(HttpStatus.OK).json(user);
     }
 
-    async create(request, response) {
+    async create(request: Request, response: Response) {
         const user = await this.groupService.create(request.body);
         response.status(HttpStatus.CREATED).json(user);
     }
 
-    async update(request, response) {
+    async update(request: Request, response: Response) {
         const user = await this.groupService.update(request.params.id, request.body);
         response.status(HttpStatus.OK).json(user);
     }
 
-    async delete(request, response) {
+    async delete(request: Request, response: Response) {
         await this.groupService.delete(request.params.id);
         response.sendStatus(HttpStatus.NO_CONTENT);
     }
diff --git a/app/domain/group/groupRepository.js b/app/domain/group/groupRepository.ts
similarity index 64%
rename from app/domain/group/groupRepository.js
rename to app/domain/group/groupRepository.ts
index aadb62e..dc9c268 100644
--- a/app/domain/group/groupRepository.js
+++ b/app/domain/group/groupRepository.ts
@@ -1,29 +1,33 @@
+import Knex = require("knex");
+
 const GROUPS = 'Groups';
-const FIELD  = ['id', 'name', 'admin'];
+const FIELD = ['id', 'name', 'admin'];
+
+interface Group {
+}
 
-class GroupRepository {
+export default class GroupRepository {
 
-    constructor(knex) {
-        this.knex = knex;
+    constructor(private knex: Knex) {
     }
 
     getAll() {
         return this.knex.select(FIELD).from(GROUPS);
     }
 
-    get(id) {
+    get(id: number) {
         return this.knex.first(FIELD).from(GROUPS).where({id});
     }
 
-    create(group) {
+    create(group: Group) {
         return this.knex.insert(group, FIELD).into(GROUPS);
     }
 
-    update(id, group) {
+    update(id: number, group: Group) {
         return this.knex.update(group, FIELD).into(GROUPS).where({id});
     }
 
-    delete(id) {
+    delete(id: number) {
         return this.knex.delete().from(GROUPS).where({id: +id});
     }
 
diff --git a/app/domain/group/groupRouter.js b/app/domain/group/groupRouter.js
deleted file mode 100644
index 1e83846..0000000
--- a/app/domain/group/groupRouter.js
+++ /dev/null
@@ -1,28 +0,0 @@
-const wrapAsync = require('app/util/wrapAsync');
-
-const express = require('express');
-
-class GroupRouter extends express.Router {
-
-    constructor(userValidation, userController) {
-        super();
-
-        //FIXME see baind
-        const createUserValidator = wrapAsync((request, response, next) => userValidation.createValidator(request, response, next));
-        const updateUserValidator = wrapAsync((request, response, next) => userValidation.updateValidator(request, response, next));
-
-        const getUsers   = wrapAsync((request, response) => userController.getAll(request, response));
-        const getUser    = wrapAsync((request, response) => userController.get(request, response));
-        const createUser = wrapAsync((request, response) => userController.create(request, response));
-        const updateUser = wrapAsync((request, response) => userController.update(request, response));
-        const deleteUser = wrapAsync((request, response) => userController.delete(request, response));
-
-        this.get('/', getUsers);
-        this.get('/:id', getUser);
-        this.post('/', createUserValidator, createUser);
-        this.put('/:id', updateUserValidator, updateUser);
-        this.delete('/:id', deleteUser);
-    }
-}
-
-module.exports = GroupRouter;
\ No newline at end of file
diff --git a/app/domain/group/groupRouter.ts b/app/domain/group/groupRouter.ts
new file mode 100644
index 0000000..c74f9af
--- /dev/null
+++ b/app/domain/group/groupRouter.ts
@@ -0,0 +1,32 @@
+import {NextFunction, Request, Response} from "express";
+import GroupValidation from "./groupValidation";
+import GroupController from "./groupController";
+
+import wrapAsync from "../../util/wrapAsync";
+
+const express = require('express');
+
+export default class GroupRouter extends express.Router {
+
+    constructor(userValidation: GroupValidation, userController: GroupController) {
+        super();
+
+        //FIXME see baind
+        const createUserValidator = wrapAsync((request: Request, response: Response, next: NextFunction) => userValidation.createValidator(request, response, next));
+        const updateUserValidator = wrapAsync((request: Request, response: Response, next: NextFunction) => userValidation.updateValidator(request, response, next));
+
+        const getUsers = wrapAsync((request: Request, response: Response) => userController.getAll(request, response));
+        const getUser = wrapAsync((request: Request, response: Response) => userController.get(request, response));
+        const createUser = wrapAsync((request: Request, response: Response) => userController.create(request, response));
+        const updateUser = wrapAsync((request: Request, response: Response) => userController.update(request, response));
+        const deleteUser = wrapAsync((request: Request, response: Response) => userController.delete(request, response));
+
+        this.get('/', getUsers);
+        this.get('/:id', getUser);
+        this.post('/', createUserValidator, createUser);
+        this.put('/:id', updateUserValidator, updateUser);
+        this.delete('/:id', deleteUser);
+    }
+}
+
+module.exports = GroupRouter;
\ No newline at end of file
diff --git a/app/domain/group/groupSchema.js b/app/domain/group/groupSchema.js
deleted file mode 100644
index 1b43140..0000000
--- a/app/domain/group/groupSchema.js
+++ /dev/null
@@ -1,13 +0,0 @@
-const Joi = require('joi');
-
-const update = create = Joi.object()
-.options({abortEarly: false})
-.keys({
-    name:  Joi.string().required().min(3).label('Group name'),
-    admin: Joi.boolean().optional().label('Admin flag')
-}).required().label('body');
-
-module.exports = {
-    create,
-    update
-};
\ No newline at end of file
diff --git a/app/domain/group/groupSchema.ts b/app/domain/group/groupSchema.ts
new file mode 100644
index 0000000..98dddd1
--- /dev/null
+++ b/app/domain/group/groupSchema.ts
@@ -0,0 +1,15 @@
+import Joi from "joi";
+
+export const update = Joi.object()
+    .options({abortEarly: false})
+    .keys({
+        name: Joi.string().required().min(3).label('Group name'),
+        admin: Joi.boolean().optional().label('Admin flag')
+    }).required().label('body');
+
+export const create = update;
+
+module.exports = {
+    create,
+    update
+};
\ No newline at end of file
diff --git a/app/domain/group/groupService.js b/app/domain/group/groupService.ts
similarity index 71%
rename from app/domain/group/groupService.js
rename to app/domain/group/groupService.ts
index 6619a0f..b2c315f 100644
--- a/app/domain/group/groupService.js
+++ b/app/domain/group/groupService.ts
@@ -1,16 +1,21 @@
-const NotFoundError = require('app/error/notFoundError');
+import GroupRepository from "./groupRepository";
 
-class GroupService {
+import NotFoundError from "../../error/notFoundError";
 
-    constructor(groupRepository) {
-        this.groupRepository = groupRepository;
+interface GroupDto {
+    id: number;
+}
+
+export default class GroupService {
+
+    constructor(private groupRepository: GroupRepository) {
     }
 
     async getAll() {
         return this.groupRepository.getAll();
     }
 
-    async get(id) {
+    async get(id: number) {
         const group = await this.groupRepository.get(id);
         if (typeof group === 'undefined') {
             throw new NotFoundError(`No group ${id}`);
@@ -19,13 +24,13 @@ class GroupService {
         return group
     }
 
-    async create(group) {
+    async create(group: GroupDto) {
         // FIXME create new object
         delete group.id;
         return this.groupRepository.create(group);
     }
 
-    async update(id, group) {
+    async update(id: number, group: GroupDto) {
         const existingGroup = await this.groupRepository.get(id);
         if (typeof existingGroup === 'undefined') {
             throw new NotFoundError(`No group ${id}`);
@@ -35,7 +40,7 @@ class GroupService {
         return this.groupRepository.update(id, group);
     }
 
-    async delete(id) {
+    async delete(id: number) {
         const existingGroup = await this.groupRepository.get(id);
         if (typeof existingGroup === 'undefined') {
             throw new NotFoundError(`No group ${id}`);
diff --git a/app/domain/group/groupValidation.js b/app/domain/group/groupValidation.js
deleted file mode 100644
index 3a61ea6..0000000
--- a/app/domain/group/groupValidation.js
+++ /dev/null
@@ -1,22 +0,0 @@
-const joiValidate = require('app/util/joiValidate');
-
-const groupSchema     = require('app/domain/group/groupSchema');
-
-const BedRequestError = require('app/error/badRequestError');
-
-class GroupValidation {
-
-    async createValidator(request, response, next) {
-        await joiValidate(request.body, groupSchema.create, BedRequestError);
-
-        next();
-    }
-
-    async updateValidator(request, response, next) {
-        await joiValidate(request.body, groupSchema.update, BedRequestError);
-
-        next();
-    }
-}
-
-module.exports = GroupValidation;
diff --git a/app/domain/group/groupValidation.ts b/app/domain/group/groupValidation.ts
new file mode 100644
index 0000000..96b659e
--- /dev/null
+++ b/app/domain/group/groupValidation.ts
@@ -0,0 +1,23 @@
+import {NextFunction, Request, Response} from "express";
+import {create, update} from "./groupSchema";
+
+import joiValidate from "../../util/joiValidate";
+
+import BedRequestError from "../../error/badRequestError";
+
+export default class GroupValidation {
+
+    async createValidator(request: Request, response: Response, next: NextFunction) {
+        await joiValidate(request.body, create, BedRequestError);
+
+        next();
+    }
+
+    async updateValidator(request: Request, response: Response, next: NextFunction) {
+        await joiValidate(request.body, update, BedRequestError);
+
+        next();
+    }
+}
+
+module.exports = GroupValidation;
diff --git a/app/domain/user/userController.js b/app/domain/user/userController.ts
similarity index 58%
rename from app/domain/user/userController.js
rename to app/domain/user/userController.ts
index 202b542..73d73fe 100644
--- a/app/domain/user/userController.js
+++ b/app/domain/user/userController.ts
@@ -1,34 +1,38 @@
+import UserService from "./userService";
+
 const HttpStatus = require('http-status-codes');
 
-class UserController {
-    constructor(userService) {
-        this.userService = userService
+import {Request, Response} from "express"
+
+export default class UserController {
+
+    constructor(private userService: UserService) {
     }
 
-    async getAll(request, response) {
+    async getAll(request: Request, response: Response) {
         const users = await this.userService.getAll();
         response.status(HttpStatus.OK).json(users);
     }
 
-    async get(request, response) {
+    async get(request: Request, response: Response) {
         const user = await this.userService.get(request.params.id);
         response.status(HttpStatus.OK).json(user);
     }
 
-    async create(request, response) {
+    async create(request: Request, response: Response) {
         const user = await this.userService.create(request.body);
         response.status(HttpStatus.CREATED).json(user);
     }
 
-    async update(request, response) {
+    async update(request: Request, response: Response) {
         const user = await this.userService.update(request.params.id, request.body);
         response.status(HttpStatus.OK).json(user);
     }
 
-    async delete(request, response) {
+    async delete(request: Request, response: Response) {
         await this.userService.delete(request.params.id);
         response.sendStatus(HttpStatus.NO_CONTENT);
     }
 }
 
-module.exports = UserController;
+module.exports = UserController;
\ No newline at end of file
diff --git a/app/domain/user/userRepository.js b/app/domain/user/userRepository.ts
similarity index 69%
rename from app/domain/user/userRepository.js
rename to app/domain/user/userRepository.ts
index 2a04474..bfe5c4e 100644
--- a/app/domain/user/userRepository.js
+++ b/app/domain/user/userRepository.ts
@@ -1,29 +1,33 @@
+import Knex = require("knex");
+
 const USERS = 'Users';
 const FIELD = ['id', 'name', 'login', 'email'];
 
-class UserRepository {
+interface User {
+}
+
+export default class UserRepository {
 
-    constructor(knex) {
-        this.knex = knex;
+    constructor(private knex: Knex) {
     }
 
     getAll() {
         return this.knex.select(FIELD).from(USERS);
     }
 
-    get(id) {
+    get(id: number) {
         return this.knex.first(FIELD).from(USERS).where({id});
     }
 
-    create(user) {
+    create(user: User) {
         return this.knex.insert(user, FIELD).into(USERS);
     }
 
-    update(id, user) {
+    update(id: number, user: User) {
         return this.knex.update(user, FIELD).into(USERS).where({id});
     }
 
-    delete(id) {
+    delete(id: number) {
         return this.knex.delete().from(USERS).where({id: +id});
     }
 
diff --git a/app/domain/user/userRouter.js b/app/domain/user/userRouter.js
deleted file mode 100644
index 4ddd07f..0000000
--- a/app/domain/user/userRouter.js
+++ /dev/null
@@ -1,27 +0,0 @@
-const wrapAsync = require('app/util/wrapAsync');
-
-const express = require('express');
-
-class UserRouter extends express.Router {
-
-    constructor(userValidation, userController) {
-        super();
-
-        const createUserValidator = wrapAsync((request, response, next) => userValidation.createValidator(request, response, next));
-        const updateUserValidator = wrapAsync((request, response, next) => userValidation.updateValidator(request, response, next));
-
-        const getUsers   = wrapAsync((request, response) => userController.getAll(request, response));
-        const getUser    = wrapAsync((request, response) => userController.get(request, response));
-        const createUser = wrapAsync((request, response) => userController.create(request, response));
-        const updateUser = wrapAsync((request, response) => userController.update(request, response));
-        const deleteUser = wrapAsync((request, response) => userController.delete(request, response));
-
-        this.get('/', getUsers);
-        this.get('/:id', getUser);
-        this.post('/', createUserValidator, createUser);
-        this.put('/:id', updateUserValidator, updateUser);
-        this.delete('/:id', deleteUser);
-    }
-}
-
-module.exports = UserRouter;
diff --git a/app/domain/user/userRouter.ts b/app/domain/user/userRouter.ts
new file mode 100644
index 0000000..1e7dcd6
--- /dev/null
+++ b/app/domain/user/userRouter.ts
@@ -0,0 +1,31 @@
+import UserValidation from "./userValidation";
+import UserController from "./userController";
+
+const express = require('express');
+import {Request, Response, NextFunction} from "express"
+
+import wrapAsync from "../../util/wrapAsync";
+
+export default class UserRouter extends express.Router {
+
+    constructor(userValidation: UserValidation, userController: UserController) {
+        super();
+
+        const createUserValidator = wrapAsync((request: Request, response: Response, next: NextFunction) => userValidation.createValidator(request, response, next));
+        const updateUserValidator = wrapAsync((request: Request, response: Response, next: NextFunction) => userValidation.updateValidator(request, response, next));
+
+        const getUsers = wrapAsync((request: Request, response: Response) => userController.getAll(request, response));
+        const getUser = wrapAsync((request: Request, response: Response) => userController.get(request, response));
+        const createUser = wrapAsync((request: Request, response: Response) => userController.create(request, response));
+        const updateUser = wrapAsync((request: Request, response: Response) => userController.update(request, response));
+        const deleteUser = wrapAsync((request: Request, response: Response) => userController.delete(request, response));
+
+        this.get('/', getUsers);
+        this.get('/:id', getUser);
+        this.post('/', createUserValidator, createUser);
+        this.put('/:id', updateUserValidator, updateUser);
+        this.delete('/:id', deleteUser);
+    }
+}
+
+module.exports = UserRouter;
diff --git a/app/domain/user/userSchema.js b/app/domain/user/userSchema.js
deleted file mode 100644
index 9aaa033..0000000
--- a/app/domain/user/userSchema.js
+++ /dev/null
@@ -1,27 +0,0 @@
-const Joi = require('joi');
-
-const create = Joi.object()
-.options({abortEarly: false})
-.keys({
-    name:            Joi.string().required().min(3).label('User name'),
-    login:           Joi.string().required().min(5).label('User login'),
-    email:           Joi.string().email().required().label('User email'),
-    password:        Joi.string().required().label('User password'),
-    confirmPassword: Joi.string().valid(Joi.ref('password')).required().options({language: {any: {allowOnly: 'must match password'}}}).label('User confirm password')
-}).required().label('body');
-
-
-const update = Joi.object()
-.options({abortEarly: false})
-.keys({
-    name:            Joi.string().required().min(3).label('User name'),
-    login:           Joi.string().required().min(5).label('User login'),
-    email:           Joi.string().email().required().label('User email'),
-    password:        Joi.string().optional().label('User password'),
-    confirmPassword: Joi.string().optional().valid(Joi.ref('password')).optional().options({language: {any: {allowOnly: 'must match password'}}}).label('User confirm password')
-}).required().label('body');
-
-module.exports = {
-    create,
-    update
-};
\ No newline at end of file
diff --git a/app/domain/user/userSchema.ts b/app/domain/user/userSchema.ts
new file mode 100644
index 0000000..01207d8
--- /dev/null
+++ b/app/domain/user/userSchema.ts
@@ -0,0 +1,27 @@
+import Joi from "joi";
+
+export const create = Joi.object()
+    .options({abortEarly: false})
+    .keys({
+        name: Joi.string().required().min(3).label('User name'),
+        login: Joi.string().required().min(5).label('User login'),
+        email: Joi.string().email().required().label('User email'),
+        password: Joi.string().required().label('User password'),
+        confirmPassword: Joi.string().valid(Joi.ref('password')).required().options({language: {any: {allowOnly: 'must match password'}}}).label('User confirm password')
+    }).required().label('body');
+
+
+export const update = Joi.object()
+    .options({abortEarly: false})
+    .keys({
+        name: Joi.string().required().min(3).label('User name'),
+        login: Joi.string().required().min(5).label('User login'),
+        email: Joi.string().email().required().label('User email'),
+        password: Joi.string().optional().label('User password'),
+        confirmPassword: Joi.string().optional().valid(Joi.ref('password')).optional().options({language: {any: {allowOnly: 'must match password'}}}).label('User confirm password')
+    }).required().label('body');
+
+module.exports = {
+    create,
+    update
+};
\ No newline at end of file
diff --git a/app/domain/user/userService.js b/app/domain/user/userService.ts
similarity index 71%
rename from app/domain/user/userService.js
rename to app/domain/user/userService.ts
index f691303..27ff5c4 100644
--- a/app/domain/user/userService.js
+++ b/app/domain/user/userService.ts
@@ -1,16 +1,21 @@
-const NotFoundError = require('app/error/notFoundError');
+import UserRepository from "./userRepository";
+import NotFoundError from "../../error/notFoundError";
 
-class UserService {
+interface UserDto {
+    id: number;
+    confirmPassword: number;
+}
+
+export default class UserService {
 
-    constructor(userRepository) {
-        this.userRepository = userRepository;
+    constructor(private userRepository: UserRepository) {
     }
 
     async getAll() {
         return this.userRepository.getAll();
     }
 
-    async get(id) {
+    async get(id: number) {
         const user = await this.userRepository.get(id);
         if (typeof user === 'undefined') {
             throw new NotFoundError(`No user ${id}`);
@@ -19,14 +24,14 @@ class UserService {
         return user
     }
 
-    async create(user) {
+    async create(user: UserDto) {
         // FIXME create new object
         delete user.id;
         delete user.confirmPassword;
         return this.userRepository.create(user);
     }
 
-    async update(id, user) {
+    async update(id: number, user: UserDto) {
         const existingUser = await this.userRepository.get(id);
         if (typeof existingUser === 'undefined') {
             throw new NotFoundError(`No user ${id}`);
@@ -37,7 +42,7 @@ class UserService {
         return this.userRepository.update(id, user);
     }
 
-    async delete(id) {
+    async delete(id: number) {
         const existingUser = await this.userRepository.get(id);
         if (typeof existingUser === 'undefined') {
             throw new NotFoundError(`No user ${id}`);
diff --git a/app/domain/user/userValidation.js b/app/domain/user/userValidation.js
deleted file mode 100644
index 5319666..0000000
--- a/app/domain/user/userValidation.js
+++ /dev/null
@@ -1,22 +0,0 @@
-const joiValidate = require('app/util/joiValidate');
-
-const userSchema = require('app/domain/user/userSchema');
-
-const BedRequestError = require('app/error/badRequestError');
-
-class UserValidation {
-
-    async createValidator(request, response, next) {
-        await joiValidate(request.body, userSchema.create, BedRequestError);
-
-        next();
-    }
-
-    async updateValidator(request, response, next) {
-        await joiValidate(request.body, userSchema.update, BedRequestError);
-
-        next();
-    }
-}
-
-module.exports = UserValidation;
diff --git a/app/domain/user/userValidation.ts b/app/domain/user/userValidation.ts
new file mode 100644
index 0000000..ead5144
--- /dev/null
+++ b/app/domain/user/userValidation.ts
@@ -0,0 +1,21 @@
+import {NextFunction, Request, Response} from "express";
+import {create, update} from "./userSchema";
+import joiValidate from "../../util/joiValidate";
+import BedRequestError from "../../error/badRequestError";
+
+export default class UserValidation {
+
+    async createValidator(request: Request, response: Response, next: NextFunction) {
+        await joiValidate(request.body, create, BedRequestError);
+
+        next();
+    }
+
+    async updateValidator(request: Request, response: Response, next: NextFunction) {
+        await joiValidate(request.body, update, BedRequestError);
+
+        next();
+    }
+}
+
+module.exports = UserValidation;
\ No newline at end of file
diff --git a/app/error/badRequestError.js b/app/error/badRequestError.ts
similarity index 58%
rename from app/error/badRequestError.js
rename to app/error/badRequestError.ts
index c556010..d59dd21 100644
--- a/app/error/badRequestError.js
+++ b/app/error/badRequestError.ts
@@ -1,8 +1,9 @@
 const HttpStatus = require('http-status-codes');
 
-class BadRequestError extends Error {
+export default class BadRequestError extends Error {
+    public status: number;
 
-    constructor(message) {
+    constructor(message: string) {
         super(message);
         this.status = HttpStatus.BAD_REQUEST;
     }
diff --git a/app/error/notFoundError.js b/app/error/notFoundError.ts
similarity index 58%
rename from app/error/notFoundError.js
rename to app/error/notFoundError.ts
index 40de9c7..439e264 100644
--- a/app/error/notFoundError.js
+++ b/app/error/notFoundError.ts
@@ -1,8 +1,9 @@
 const HttpStatus = require('http-status-codes');
 
-class NotFoundError extends Error {
+export default class NotFoundError extends Error {
+    public status: number;
 
-    constructor(message) {
+    constructor(message:string) {
         super(message);
         this.status = HttpStatus.NOT_FOUND;
     }
diff --git a/app/runner.js b/app/runner.ts
similarity index 100%
rename from app/runner.js
rename to app/runner.ts
diff --git a/app/setting.js b/app/setting.ts
similarity index 86%
rename from app/setting.js
rename to app/setting.ts
index b539ebd..3041be4 100644
--- a/app/setting.js
+++ b/app/setting.ts
@@ -3,7 +3,7 @@ const env = process.env.NODE_ENV || 'development';
 require('dotenv').load({path: `.env.${env}`});
 // FIXME see config
 
-module.exports = {
+const setting = {
     ENVIRONMENT: env,
 
     PORT:        process.env.PORT || 3000,
@@ -15,3 +15,6 @@ module.exports = {
     DB_NAME:     process.env.DB_NAME || 'user-service',
 
 };
+
+export default setting;
+module.exports = setting;
\ No newline at end of file
diff --git a/app/util/errorHandler.js b/app/util/errorHandler.js
deleted file mode 100644
index 10a0548..0000000
--- a/app/util/errorHandler.js
+++ /dev/null
@@ -1,20 +0,0 @@
-const HttpStatus = require('http-status-codes');
-
-const BedRequestError = require('app/error/badRequestError');
-const NotFoundError   = require('app/error/notFoundError');
-
-module.exports = function(error, request, response, next) {
-    if (
-    (error instanceof BedRequestError) ||
-    (error instanceof NotFoundError)
-    ) {
-        response.status(error.status).json({error: error.message});
-    } else if (
-    (error instanceof Error) &&
-    (typeof error.constraint !== 'undefined')
-    ) {
-        response.status(HttpStatus.CONFLICT).json({error: error.detail});
-    } else {
-        next();
-    }
-};
diff --git a/app/util/errorHandler.ts b/app/util/errorHandler.ts
new file mode 100644
index 0000000..0c1951f
--- /dev/null
+++ b/app/util/errorHandler.ts
@@ -0,0 +1,27 @@
+import NotFoundError from "../error/notFoundError";
+import BedRequestError from "../error/badRequestError";
+import {NextFunction, Request, Response} from "express";
+
+const HttpStatus = require('http-status-codes');
+
+const errorHandler = function (error: Error, request: Request, response: Response, next: NextFunction) {
+    if (
+        (error instanceof BedRequestError) ||
+        (error instanceof NotFoundError)
+    ) {
+        response.status(error.status).json({error: error.message});
+    } else if (
+        (error instanceof Error) &&
+        (
+            // @ts-ignore
+            typeof error.constraint !== 'undefined')
+    ) {
+        // @ts-ignore
+        response.status(HttpStatus.CONFLICT).json({error: error.detail});
+    } else {
+        next();
+    }
+};
+
+export default errorHandler;
+module.exports = errorHandler;
\ No newline at end of file
diff --git a/app/util/joiValidate.js b/app/util/joiValidate.ts
similarity index 55%
rename from app/util/joiValidate.js
rename to app/util/joiValidate.ts
index 8d44a5a..0291010 100644
--- a/app/util/joiValidate.js
+++ b/app/util/joiValidate.ts
@@ -1,6 +1,8 @@
+import {SchemaLike} from "joi";
+
 const Joi = require('joi');
 
-module.exports = function(body, schema, Error) {
+const joiValidate = function (body: any, schema: SchemaLike, Error: any) {
     const {error, value} = Joi.validate(body, schema);
 
     if (error) {
@@ -8,4 +10,6 @@ module.exports = function(body, schema, Error) {
         throw new Error(message);
     }
     return value;
-};
\ No newline at end of file
+};
+export default joiValidate;
+module.exports = joiValidate;
\ No newline at end of file
diff --git a/app/util/wrapAsync.js b/app/util/wrapAsync.js
deleted file mode 100644
index 1e33ee2..0000000
--- a/app/util/wrapAsync.js
+++ /dev/null
@@ -1,8 +0,0 @@
-module.exports = (fn) => {
-    return (request, response, next) => {
-        // Make sure to `.catch()` any errors and pass them along to the `next()`
-        // middleware in the chain, in this case the error handler.
-        fn(request, response, next)
-        .catch(next);
-    };
-};
diff --git a/app/util/wrapAsync.ts b/app/util/wrapAsync.ts
new file mode 100644
index 0000000..a0eba8f
--- /dev/null
+++ b/app/util/wrapAsync.ts
@@ -0,0 +1,13 @@
+import {NextFunction, Request, Response} from "express";
+
+const wrap = (fn: any) => {
+    return (request: Request, response: Response, next: NextFunction) => {
+        // Make sure to `.catch()` any errors and pass them along to the `next()`
+        // middleware in the chain, in this case the error handler.
+        fn(request, response, next)
+            .catch(next);
+    };
+};
+
+export default wrap;
+module.exports = wrap;
\ No newline at end of file
diff --git a/package-lock.json b/package-lock.json
index 732cbd8..d9dcac0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -156,6 +156,103 @@
       "integrity": "sha512-D7VxhADdZbDJ0HjUTMnSQ5xIGb4H2yWpg8k9Sf1T08zfFiQYlaxM8LZydpR4FQ2E6LZJX8IlabNZ5io4vdChwg==",
       "dev": true
     },
+    "@types/bluebird": {
+      "version": "3.5.24",
+      "resolved": "https://registry.npmjs.org/@types/bluebird/-/bluebird-3.5.24.tgz",
+      "integrity": "sha512-YeQoDpq4Lm8ppSBqAnAeF/xy1cYp/dMTif2JFcvmAbETMRlvKHT2iLcWu+WyYiJO3b3Ivokwo7EQca/xfLVJmg==",
+      "dev": true
+    },
+    "@types/body-parser": {
+      "version": "1.17.0",
+      "resolved": "https://registry.npmjs.org/@types/body-parser/-/body-parser-1.17.0.tgz",
+      "integrity": "sha512-a2+YeUjPkztKJu5aIF2yArYFQQp8d51wZ7DavSHjFuY1mqVgidGyzEQ41JIVNy82fXj8yPgy2vJmfIywgESW6w==",
+      "dev": true,
+      "requires": {
+        "@types/connect": "3.4.32",
+        "@types/node": "10.11.4"
+      }
+    },
+    "@types/connect": {
+      "version": "3.4.32",
+      "resolved": "https://registry.npmjs.org/@types/connect/-/connect-3.4.32.tgz",
+      "integrity": "sha512-4r8qa0quOvh7lGD0pre62CAb1oni1OO6ecJLGCezTmhQ8Fz50Arx9RUszryR8KlgK6avuSXvviL6yWyViQABOg==",
+      "dev": true,
+      "requires": {
+        "@types/node": "10.11.4"
+      }
+    },
+    "@types/events": {
+      "version": "1.2.0",
+      "resolved": "https://registry.npmjs.org/@types/events/-/events-1.2.0.tgz",
+      "integrity": "sha512-KEIlhXnIutzKwRbQkGWb/I4HFqBuUykAdHgDED6xqwXJfONCjF5VoE0cXEiurh3XauygxzeDzgtXUqvLkxFzzA==",
+      "dev": true
+    },
+    "@types/express": {
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/@types/express/-/express-4.16.0.tgz",
+      "integrity": "sha512-TtPEYumsmSTtTetAPXlJVf3kEqb6wZK0bZojpJQrnD/djV4q1oB6QQ8aKvKqwNPACoe02GNiy5zDzcYivR5Z2w==",
+      "dev": true,
+      "requires": {
+        "@types/body-parser": "1.17.0",
+        "@types/express-serve-static-core": "4.16.0",
+        "@types/serve-static": "1.13.2"
+      }
+    },
+    "@types/express-serve-static-core": {
+      "version": "4.16.0",
+      "resolved": "https://registry.npmjs.org/@types/express-serve-static-core/-/express-serve-static-core-4.16.0.tgz",
+      "integrity": "sha512-lTeoCu5NxJU4OD9moCgm0ESZzweAx0YqsAcab6OB0EB3+As1OaHtKnaGJvcngQxYsi9UNv0abn4/DRavrRxt4w==",
+      "dev": true,
+      "requires": {
+        "@types/events": "1.2.0",
+        "@types/node": "10.11.4",
+        "@types/range-parser": "1.2.2"
+      }
+    },
+    "@types/joi": {
+      "version": "13.6.0",
+      "resolved": "https://registry.npmjs.org/@types/joi/-/joi-13.6.0.tgz",
+      "integrity": "sha512-vgxADik+Va7AcMZ89C7MVod3DlB3SWcj4dDI+XIceObGFfscehtjA0fFzBCZLoRr7ShjLVHNu1gMk+HtrG8WeQ==",
+      "dev": true
+    },
+    "@types/knex": {
+      "version": "0.14.26",
+      "resolved": "https://registry.npmjs.org/@types/knex/-/knex-0.14.26.tgz",
+      "integrity": "sha512-BhtEH5PbB2kxuAwZ1w+KDNyL5NZXjTfoT6JtwnD3P/l3bqJJISCOAfPeH8O2aY66auscNIaCvIij/eONvlM4Cw==",
+      "dev": true,
+      "requires": {
+        "@types/bluebird": "3.5.24",
+        "@types/node": "10.11.4"
+      }
+    },
+    "@types/mime": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/@types/mime/-/mime-2.0.0.tgz",
+      "integrity": "sha512-A2TAGbTFdBw9azHbpVd+/FkdW2T6msN1uct1O9bH3vTerEHKZhTXJUQXy+hNq1B0RagfU8U+KBdqiZpxjhOUQA==",
+      "dev": true
+    },
+    "@types/node": {
+      "version": "10.11.4",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-10.11.4.tgz",
+      "integrity": "sha512-ojnbBiKkZFYRfQpmtnnWTMw+rzGp/JiystjluW9jgN3VzRwilXddJ6aGQ9V/7iuDG06SBgn7ozW9k3zcAnYjYQ==",
+      "dev": true
+    },
+    "@types/range-parser": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/@types/range-parser/-/range-parser-1.2.2.tgz",
+      "integrity": "sha512-HtKGu+qG1NPvYe1z7ezLsyIaXYyi8SoAVqWDZgDQ8dLrsZvSzUNCwZyfX33uhWxL/SU0ZDQZ3nwZ0nimt507Kw==",
+      "dev": true
+    },
+    "@types/serve-static": {
+      "version": "1.13.2",
+      "resolved": "https://registry.npmjs.org/@types/serve-static/-/serve-static-1.13.2.tgz",
+      "integrity": "sha512-/BZ4QRLpH/bNYgZgwhKEh+5AsboDBcUdlBYgzoLX0fpj3Y2gp6EApyOlM3bK53wQS/OE1SrdSYBAbux2D1528Q==",
+      "dev": true,
+      "requires": {
+        "@types/express-serve-static-core": "4.16.0",
+        "@types/mime": "2.0.0"
+      }
+    },
     "accepts": {
       "version": "1.3.5",
       "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.5.tgz",
@@ -4890,6 +4987,12 @@
         "mime-types": "2.1.20"
       }
     },
+    "typescript": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-3.1.1.tgz",
+      "integrity": "sha512-Veu0w4dTc/9wlWNf2jeRInNodKlcdLgemvPsrNpfu5Pq39sgfFjvIIgTsvUHCoLBnMhPoUA+tFxsXjU6VexVRQ==",
+      "dev": true
+    },
     "uglify-js": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.3.0.tgz",
diff --git a/package.json b/package.json
index 249bd7f..b365350 100644
--- a/package.json
+++ b/package.json
@@ -1,10 +1,12 @@
 {
   "name": "user-service",
   "version": "1.0.0",
-  "description": "Play with passportjs",
+  "description": "User service",
   "main": "server.js",
   "scripts": {
-    "start": "node $NODE_DEBUG_OPTION server.js",
+    "build": "npm run build-ts",
+    "build-ts": "tsc -p .",
+    "start": "npm run build && node $NODE_DEBUG_OPTION server.js",
     "run": "node $NODE_DEBUG_OPTION runner.js",
     "test": "NODE_ENV=test knex migrate:latest && NODE_ENV=test mocha",
     "e2e": "node e2e-test/e2e.js",
@@ -15,16 +17,16 @@
   "license": "MIT",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/LvivNodeJsClub/passport.git"
+    "url": "git+https://github.com/LvivNodeJsClub/user-service.git"
   },
   "keywords": [
-    "passport",
+    "user",
     "node"
   ],
   "bugs": {
-    "url": "https://github.com/LvivNodeJsClub/passport/issues"
+    "url": "https://github.com/LvivNodeJsClub/user-service/issues"
   },
-  "homepage": "https://github.com/LvivNodeJsClub/passport#readme",
+  "homepage": "https://github.com/LvivNodeJsClub/user-service#readme",
   "dependencies": {
     "body-parser": "^1.18.3",
     "dotenv": "^6.0.0",
@@ -38,6 +40,9 @@
     "rootpath": "^0.1.2"
   },
   "devDependencies": {
+    "@types/express": "^4.16.0",
+    "@types/joi": "^13.6.0",
+    "@types/knex": "^0.14.26",
     "chai": "^4.1.2",
     "chai-as-promised": "^7.1.1",
     "http-status-codes": "^1.3.0",
@@ -46,7 +51,8 @@
     "newman-reporter-html": "^1.0.2",
     "nyc": "^13.0.1",
     "sinon": "^6.1.5",
-    "supertest": "^3.1.0"
+    "supertest": "^3.1.0",
+    "typescript": "^3.1.1"
   },
   "nyc": {
     "report-dir": "./output/nyc-report"
diff --git a/tsconfig.json b/tsconfig.json
new file mode 100644
index 0000000..8acdd47
--- /dev/null
+++ b/tsconfig.json
@@ -0,0 +1,62 @@
+{
+  "compilerOptions": {
+    /* Basic Options */
+    "target": "es6",                          /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */
+    "module": "commonjs",                     /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
+    // "lib": [],                             /* Specify library files to be included in the compilation. */
+    // "allowJs": true,                       /* Allow javascript files to be compiled. */
+    // "checkJs": true,                       /* Report errors in .js files. */
+    // "jsx": "preserve",                     /* Specify JSX code generation: 'preserve', 'react-native', or 'react'. */
+    // "declaration": true,                   /* Generates corresponding '.d.ts' file. */
+    // "declarationMap": true,                /* Generates a sourcemap for each corresponding '.d.ts' file. */
+    // "sourceMap": true,                     /* Generates corresponding '.map' file. */
+    // "outFile": "./",                       /* Concatenate and emit output to single file. */
+    // "outDir": "./",                        /* Redirect output structure to the directory. */
+    // "rootDir": "./",                       /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */
+    // "composite": true,                     /* Enable project compilation */
+    // "removeComments": true,                /* Do not emit comments to output. */
+    // "noEmit": true,                        /* Do not emit outputs. */
+    // "importHelpers": true,                 /* Import emit helpers from 'tslib'. */
+    // "downlevelIteration": true,            /* Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'. */
+    // "isolatedModules": true,               /* Transpile each file as a separate module (similar to 'ts.transpileModule'). */
+
+    /* Strict Type-Checking Options */
+    "strict": true,                           /* Enable all strict type-checking options. */
+    // "noImplicitAny": true,                 /* Raise error on expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,              /* Enable strict null checks. */
+    "strictFunctionTypes": true,           /* Enable strict checking of function types. */
+    "strictPropertyInitialization": true,  /* Enable strict checking of property initialization in classes. */
+    // "noImplicitThis": true,                /* Raise error on 'this' expressions with an implied 'any' type. */
+    // "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
+
+    /* Additional Checks */
+    // "noUnusedLocals": true,                /* Report errors on unused locals. */
+    // "noUnusedParameters": true,            /* Report errors on unused parameters. */
+    // "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
+    // "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
+
+    /* Module Resolution Options */
+    // "moduleResolution": "node",            /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
+    // "baseUrl": "./",                       /* Base directory to resolve non-absolute module names. */
+    // "paths": {},                           /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
+    // "rootDirs": [],                        /* List of root folders whose combined content represents the structure of the project at runtime. */
+    // "typeRoots": [],                       /* List of folders to include type definitions from. */
+    // "types": [],                           /* Type declaration files to be included in compilation. */
+    // "allowSyntheticDefaultImports": true,  /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */
+    "esModuleInterop": true                   /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */
+    // "preserveSymlinks": true,              /* Do not resolve the real path of symlinks. */
+
+    /* Source Map Options */
+    // "sourceRoot": "",                      /* Specify the location where debugger should locate TypeScript files instead of source locations. */
+    // "mapRoot": "",                         /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSourceMap": true,               /* Emit a single file with source maps instead of having a separate file. */
+    // "inlineSources": true,                 /* Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set. */
+
+    /* Experimental Options */
+    // "experimentalDecorators": true,        /* Enables experimental support for ES7 decorators. */
+    // "emitDecoratorMetadata": true,         /* Enables experimental support for emitting type metadata for decorators. */
+  },
+  "include": [
+    "./app/**/*"
+  ]
+}