diff --git a/api/auth/api.yaml b/api/auth/api.yaml
index 4600833..bfdc9a5 100644
--- a/api/auth/api.yaml
+++ b/api/auth/api.yaml
@@ -137,9 +137,14 @@ components:
           type: boolean
           description: Status of the verification
           example: true
+        message:
+          type: string
+          description: Confirmation message
+          example: "OTP verified successfully"
       required:
         - redirect_url
         - ok
+        - message
     AcceptConsentRequest:
       type: object
       properties:
@@ -147,8 +152,14 @@ components:
           type: string
           description: The consent challenge to accept
           example: "challenge123"
+        phone_number:
+          type: string
+          description: Phone number associated with the consent
+          example: "+79999999999"
+          maxLength: 15
       required:
         - consent_challenge
+        - phone_number
     AcceptConsentResponse:
       type: object
       properties:
diff --git a/api/user/api.yaml b/api/user/api.yaml
index 4f87291..6132469 100644
--- a/api/user/api.yaml
+++ b/api/user/api.yaml
@@ -5,35 +5,11 @@ info:
 servers:
   - url: https://api.example.com/v1
 paths:
-  /users:
-    get:
-      summary: Get all users
-      responses:
-        '200':
-          description: A list of users
-          content:
-            application/json:
-              schema:
-                type: array
-                items:
-                  $ref: '#/components/schemas/User'
-    post:
-      summary: Create a new user
-      requestBody:
-        required: true
-        content:
-          application/json:
-            schema:
-              $ref: '#/components/schemas/UserCreate'
-      responses:
-        '201':
-          description: User created
-          content:
-            application/json:
-              schema:
-                $ref: '#/components/schemas/User'
   /users/{userId}:
     get:
+      tags:
+        - users
+      operationId: getUserById
       summary: Get a user by ID
       parameters:
         - name: userId
@@ -47,92 +23,65 @@ paths:
           content:
             application/json:
               schema:
-                $ref: '#/components/schemas/User'
+                type: object
+                properties:
+                  user:
+                    $ref: '#/components/schemas/User'
+                required:
+                  - user
+
+
+
         '404':
           description: User not found
-    put:
-      summary: Update a user by ID
-      parameters:
-        - name: userId
-          in: path
-          required: true
-          schema:
-            type: string
+          content:
+            application/json:
+              schema:
+                type: object
+                properties:
+                  message:
+                    type: string
+                    example: "User not found"
+                required:
+                  - message
+  /users:
+    post:
+      tags:
+        - users
+      operationId: createUser
+      summary: "Create a new user with phone number"
       requestBody:
         required: true
         content:
           application/json:
             schema:
-              $ref: '#/components/schemas/UserUpdate'
+              $ref: '#/components/schemas/UserCreate'
       responses:
         '200':
-          description: User updated
+          description: User created successfully
           content:
             application/json:
               schema:
                 $ref: '#/components/schemas/User'
-        '404':
-          description: User not found
-    delete:
-      summary: Delete a user by ID
-      parameters:
-        - name: userId
-          in: path
-          required: true
-          schema:
-            type: string
-      responses:
-        '204':
-          description: User deleted successfully
-        '404':
-          description: User not found
-
 components:
   schemas:
     User:
       type: object
       properties:
-        id:
+        uuid:
           type: string
           example: "123"
-        username:
+        phone_number:
           type: string
           example: "johndoe"
-        email:
-          type: string
-          format: email
-          example: "johndoe@example.com"
       required:
-        - id
-        - username
-        - email
+        - uuid
+        - phone_number
     UserCreate:
       type: object
       properties:
-        username:
+        phone_number:
           type: string
-          example: "johndoe"
-        email:
-          type: string
-          format: email
-          example: "johndoe@example.com"
-        password:
-          type: string
-          format: password
+
       required:
-        - username
-        - email
-        - password
-    UserUpdate:
-      type: object
-      properties:
-        username:
-          type: string
-          example: "john_doe_updated"
-        email:
-          type: string
-          format: email
-          example: "johnupdated@example.com"
-      required:
-        - username
-        - email
+        - phone_number
diff --git a/cmd/api/main.go b/cmd/api/main.go
index 3e2a68b..2935cb5 100644
--- a/cmd/api/main.go
+++ b/cmd/api/main.go
@@ -1,28 +1,57 @@
 package main
 
 import (
-	authApi "git.logidex.ru/fakz9/logidex-id/internal/api/auth/handler"
+	"context"
+	"log"
+	"strconv"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth"
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user"
 	"git.logidex.ru/fakz9/logidex-id/internal/config"
+	"git.logidex.ru/fakz9/logidex-id/internal/db"
 	"git.logidex.ru/fakz9/logidex-id/internal/hydra_client"
 	"git.logidex.ru/fakz9/logidex-id/internal/redis"
 	"github.com/gofiber/fiber/v2"
-	"strconv"
+	"go.uber.org/fx"
 )
 
-func main() {
-	config.Init()
-	err := redis.Init()
-	if err != nil {
-		panic(err)
-	}
-	hydra_client.InitClient()
-
+func NewFiberApp(cfg config.Config) *fiber.App {
 	app := fiber.New()
-	api := app.Group("/api")
-	authApi.RegisterApp(api)
-
-	err = app.Listen(":" + strconv.Itoa(config.Cfg.App.Port))
-	if err != nil {
-		panic(err)
-	}
+	return app
+}
+
+func StartFiberApp(lifecycle fx.Lifecycle, app *fiber.App, cfg config.Config) {
+	lifecycle.Append(fx.Hook{
+		OnStart: func(ctx context.Context) error {
+			go func() {
+				if err := app.Listen(":" + strconv.Itoa(cfg.App.Port)); err != nil {
+					log.Fatal(err)
+				}
+			}()
+
+			return nil
+		},
+		OnStop: func(ctx context.Context) error {
+			return app.Shutdown()
+		},
+	})
+}
+func NewFiberRouter(app *fiber.App) fiber.Router {
+	return app.Group("/api")
+}
+
+func main() {
+	fx.New(
+		fx.Provide(
+			config.NewConfig,
+			redis.NewRedisClient,
+			hydra_client.NewHydraClient,
+			NewFiberApp,
+			NewFiberRouter,
+		),
+		db.Module,
+		user.Module,
+		auth.Module,
+		fx.Invoke(StartFiberApp),
+	).Run()
 }
diff --git a/combine.sh b/combine.sh
new file mode 100755
index 0000000..541ca91
--- /dev/null
+++ b/combine.sh
@@ -0,0 +1 @@
+swagger-cli bundle openapi.yaml --outfile combined.yaml --type yaml
\ No newline at end of file
diff --git a/config.yaml b/config.yaml
index 7b8a4f2..a9b5dee 100644
--- a/config.yaml
+++ b/config.yaml
@@ -7,4 +7,11 @@ redis:
   db: 0
 
 hydra:
-  host: https://oauth2.logidex.ru/admin
\ No newline at end of file
+  host: https://oauth2.logidex.ru/admin
+
+db:
+  host: localhost
+  port: 5432
+  user: postgres
+  password: postgres
+  dbname: logidex-id
diff --git a/go.mod b/go.mod
index 0e82ea2..a3c9a3b 100644
--- a/go.mod
+++ b/go.mod
@@ -27,6 +27,7 @@ require (
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
 	github.com/jackc/pgx/v5 v5.7.5 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
+	github.com/jinzhu/copier v0.4.0 // indirect
 	github.com/jinzhu/inflection v1.0.0 // indirect
 	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
@@ -37,6 +38,7 @@ require (
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/mohae/deepcopy v0.0.0-20170929034955-c48cc78d4826 // indirect
 	github.com/ncruces/go-strftime v0.1.9 // indirect
+	github.com/nyaruka/phonenumbers v1.6.4 // indirect
 	github.com/oapi-codegen/oapi-codegen/v2 v2.5.0 // indirect
 	github.com/oapi-codegen/runtime v1.1.2 // indirect
 	github.com/oasdiff/yaml v0.0.0-20250309154309-f31be36b4037 // indirect
@@ -74,6 +76,8 @@ require (
 	github.com/wasilibs/go-pgquery v0.0.0-20250409022910-10ac41983c07 // indirect
 	github.com/wasilibs/wazero-helpers v0.0.0-20240620070341-3dff1577cd52 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
+	go.uber.org/dig v1.19.0 // indirect
+	go.uber.org/fx v1.24.0 // indirect
 	go.uber.org/multierr v1.11.0 // indirect
 	go.uber.org/zap v1.27.0 // indirect
 	golang.org/x/crypto v0.40.0 // indirect
diff --git a/go.sum b/go.sum
index 95224e5..7b7cd45 100644
--- a/go.sum
+++ b/go.sum
@@ -157,6 +157,8 @@ github.com/jackc/pgx/v5 v5.7.5 h1:JHGfMnQY+IEtGM63d+NGMjoRpysB2JBwDr5fsngwmJs=
 github.com/jackc/pgx/v5 v5.7.5/go.mod h1:aruU7o91Tc2q2cFp5h4uP3f6ztExVpyVv88Xl/8Vl8M=
 github.com/jackc/puddle/v2 v2.2.2 h1:PR8nw+E/1w0GLuRFSmiioY6UooMp6KJv0/61nB7icHo=
 github.com/jackc/puddle/v2 v2.2.2/go.mod h1:vriiEXHvEE654aYKXXjOvZM39qJ0q+azkZFrfEOc3H4=
+github.com/jinzhu/copier v0.4.0 h1:w3ciUoD19shMCRargcpm0cm91ytaBhDvuRpz1ODO/U8=
+github.com/jinzhu/copier v0.4.0/go.mod h1:DfbEm0FYsaqBcKcFuvmOZb218JkPGtvSHsKg8S8hyyg=
 github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD/E=
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
@@ -187,6 +189,8 @@ github.com/ncruces/go-strftime v0.1.9 h1:bY0MQC28UADQmHmaF5dgpLmImcShSi2kHU9XLdh
 github.com/ncruces/go-strftime v0.1.9/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 github.com/nxadm/tail v1.4.4/go.mod h1:kenIhsEOeOJmVchQTgglprH7qJGnHDVpk1VPCcaMI8A=
 github.com/nxadm/tail v1.4.8/go.mod h1:+ncqLTQzXmGhMZNUePPaPqPvBxHAIsmXswZKocGu+AU=
+github.com/nyaruka/phonenumbers v1.6.4 h1:GFAa844VqRKJvO7oboosM1q3gFVgYvyNe0O6CCbg33A=
+github.com/nyaruka/phonenumbers v1.6.4/go.mod h1:7gjs+Lchqm49adhAKB5cdcng5ZXgt6x7Jgvi0ZorUtU=
 github.com/oapi-codegen/oapi-codegen/v2 v2.5.0 h1:iJvF8SdB/3/+eGOXEpsWkD8FQAHj6mqkb6Fnsoc8MFU=
 github.com/oapi-codegen/oapi-codegen/v2 v2.5.0/go.mod h1:fwlMxUEMuQK5ih9aymrxKPQqNm2n8bdLk1ppjH+lr9w=
 github.com/oapi-codegen/runtime v1.1.2 h1:P2+CubHq8fO4Q6fV1tqDBZHCwpVpvPg7oKiYzQgXIyI=
@@ -296,6 +300,10 @@ go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.9.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
 go.uber.org/atomic v1.11.0 h1:ZvwS0R+56ePWxUNi+Atn9dWONBPp/AUETXlHW0DxSjE=
 go.uber.org/atomic v1.11.0/go.mod h1:LUxbIzbOniOlMKjJjyPfpl4v+PKK2cNJn91OQbhoJI0=
+go.uber.org/dig v1.19.0 h1:BACLhebsYdpQ7IROQ1AGPjrXcP5dF80U3gKoFzbaq/4=
+go.uber.org/dig v1.19.0/go.mod h1:Us0rSJiThwCv2GteUN0Q7OKvU7n5J4dxZ9JKUXozFdE=
+go.uber.org/fx v1.24.0 h1:wE8mruvpg2kiiL1Vqd0CC+tr0/24XIB10Iwp2lLWzkg=
+go.uber.org/fx v1.24.0/go.mod h1:AmDeGyS+ZARGKM4tlH4FY2Jr63VjbEDJHtqXTGP5hbo=
 go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
 go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
 go.uber.org/multierr v1.7.0/go.mod h1:7EAYxJLBy9rStEaz58O2t4Uvip6FSURkq8/ppBp95ak=
diff --git a/internal/api/auth/domain/auth_domain.go b/internal/api/auth/domain/auth_domain.go
new file mode 100644
index 0000000..d0eaf00
--- /dev/null
+++ b/internal/api/auth/domain/auth_domain.go
@@ -0,0 +1,51 @@
+package domain
+
+import "context"
+
+type AuthRepository interface {
+	SaveOtpRequest(ctx context.Context, uuid string, code string) error
+	GetOtpRequest(ctx context.Context, uuid string) (*string, error)
+}
+
+type ErrOtpNotFound struct {
+	Uuid string
+}
+
+func (e ErrOtpNotFound) Error() string {
+	return "OTP request not found for UUID: " + e.Uuid
+}
+
+type ErrUserNotFound struct {
+	PhoneNumber string
+}
+
+func (e ErrUserNotFound) Error() string {
+	return "User not found with phone number: " + e.PhoneNumber
+}
+
+type ErrOtpInvalid struct {
+	Code string
+	Uuid string
+}
+
+func (e ErrOtpInvalid) Error() string {
+	return "Invalid OTP code: " + e.Code + " for UUID: " + e.Uuid
+}
+
+type ErrInvalidHydraAccept struct {
+	Message string
+	Uuid    string
+}
+
+func (e ErrInvalidHydraAccept) Error() string {
+	return "Invalid Hydra accept request: " + e.Message + " for UUID: " + e.Uuid
+}
+
+type ErrInvalidPhoneNumber struct {
+	PhoneNumber string
+	Err         error
+}
+
+func (e ErrInvalidPhoneNumber) Error() string {
+	return "Invalid phone number: " + e.PhoneNumber + ", error: " + e.Err.Error()
+}
diff --git a/internal/api/auth/fx.go b/internal/api/auth/fx.go
new file mode 100644
index 0000000..ce87edd
--- /dev/null
+++ b/internal/api/auth/fx.go
@@ -0,0 +1,20 @@
+package auth
+
+import (
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/handler"
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/repo"
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/service"
+	"github.com/gofiber/fiber/v2"
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(
+		repo.NewAuthRepo,
+		service.NewAuthService,
+		handler.NewAuthHandler,
+	),
+	fx.Invoke(func(handler *handler.AuthHandler, router fiber.Router) {
+		handler.RegisterRoutes(router)
+	}),
+)
diff --git a/internal/api/auth/handler/gen.go b/internal/api/auth/handler/gen.go
index c37d853..aad6973 100644
--- a/internal/api/auth/handler/gen.go
+++ b/internal/api/auth/handler/gen.go
@@ -14,6 +14,9 @@ import (
 type AcceptConsentRequest struct {
 	// ConsentChallenge The consent challenge to accept
 	ConsentChallenge string `json:"consent_challenge"`
+
+	// PhoneNumber Phone number associated with the consent
+	PhoneNumber string `json:"phone_number"`
 }
 
 // AcceptConsentResponse defines model for AcceptConsentResponse.
@@ -56,6 +59,9 @@ type VerifyOTPRequest struct {
 
 // VerifyOTPResponse defines model for VerifyOTPResponse.
 type VerifyOTPResponse struct {
+	// Message Confirmation message
+	Message string `json:"message"`
+
 	// Ok Status of the verification
 	Ok bool `json:"ok"`
 
diff --git a/internal/api/auth/handler/impl.go b/internal/api/auth/handler/impl.go
index 09aeb45..a7195bd 100644
--- a/internal/api/auth/handler/impl.go
+++ b/internal/api/auth/handler/impl.go
@@ -2,113 +2,68 @@ package handler
 
 import (
 	"context"
-	"fmt"
-	"git.logidex.ru/fakz9/logidex-id/internal/hydra_client"
-	"git.logidex.ru/fakz9/logidex-id/internal/redis"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/service"
 	"github.com/gofiber/fiber/v2"
-	hydraApi "github.com/ory/hydra-client-go"
 )
 
-type AuthHandler struct{}
-
-func (a AuthHandler) PostAuthConsentAccept(ctx context.Context, request PostAuthConsentAcceptRequestObject) (PostAuthConsentAcceptResponseObject, error) {
-	hydraClient := hydra_client.GetClient()
-
-	hydraRequest := hydraApi.AcceptConsentRequest{}
-	hydraRequest.SetGrantScope([]string{"openid"})
-	hydraRequest.SetRemember(true)
-	hydraRequest.SetRememberFor(3600) // 1 hour
-
-	hydraResponse, r, err := hydraClient.AdminApi.
-		AcceptConsentRequest(ctx).
-		ConsentChallenge(request.Body.ConsentChallenge).
-		AcceptConsentRequest(hydraRequest).
-		Execute()
-	if err != nil {
-		return PostAuthConsentAccept400JSONResponse{
-			RedirectUrl: "",
-			Ok:          false,
-			Message:     "Failed to accept consent request",
-		}, nil
-	}
-	fmt.Println(r)
-	return PostAuthConsentAccept200JSONResponse{
-		RedirectUrl: hydraResponse.RedirectTo,
-		Ok:          true,
-		Message:     "Успешно",
-	}, nil
+type AuthHandler struct {
+	service service.AuthService
 }
 
-func (a AuthHandler) PostAuthOtpRequest(ctx context.Context, request PostAuthOtpRequestRequestObject) (PostAuthOtpRequestResponseObject, error) {
-	redisClient := redis.GetClient()
-
-	// TODO implement OTP request logic
-
-	err := redisClient.Do(ctx, redisClient.B().Set().Key("otp:"+request.Body.PhoneNumber).Value("123456").Build()).Error()
+func (h AuthHandler) PostAuthOtpRequest(ctx context.Context, request PostAuthOtpRequestRequestObject) (PostAuthOtpRequestResponseObject, error) {
+	err := h.service.OtpRequest(ctx, request.Body.PhoneNumber)
 	if err != nil {
 		return PostAuthOtpRequest400JSONResponse{
-			Message: "Failed to set OTP in Redis",
+			Message: err.Error(),
 			Ok:      false,
 		}, nil
 	}
-
 	return PostAuthOtpRequest200JSONResponse{
-		Message: "Код успешно отправлен",
+		Message: "OTP request successful",
 		Ok:      true,
 	}, nil
 }
 
-func (a AuthHandler) PostAuthOtpVerify(ctx context.Context, request PostAuthOtpVerifyRequestObject) (PostAuthOtpVerifyResponseObject, error) {
-	redisClient := redis.GetClient()
-	hydraClient := hydra_client.GetClient()
-
-	sentOtp, err := redisClient.Do(ctx, redisClient.B().Get().Key("otp:"+request.Body.PhoneNumber).Build()).ToString()
+func (h AuthHandler) PostAuthOtpVerify(ctx context.Context, request PostAuthOtpVerifyRequestObject) (PostAuthOtpVerifyResponseObject, error) {
+	redirectUrl, err := h.service.OtpVerify(ctx, request.Body.PhoneNumber, request.Body.Otp, request.Body.LoginChallenge)
 	if err != nil {
 		return PostAuthOtpVerify400JSONResponse{
-			RedirectUrl: "",
+			Message:     err.Error(),
 			Ok:          false,
-		}, nil
-	}
-	if sentOtp != request.Body.Otp {
-		return PostAuthOtpVerify400JSONResponse{
 			RedirectUrl: "",
-			Ok:          false,
-		}, nil
-	}
-	hydraRequest := hydraApi.AcceptLoginRequest{}
-	// TODO read user from database by phone number
-
-	hydraRequest.SetSubject("some-user-id") // Replace with actual user ID
-	hydraRequest.SetRemember(true)
-	hydraRequest.SetRememberFor(3600) // 1 hour
-
-	hydraResponse, r, err := hydraClient.AdminApi.
-		AcceptLoginRequest(ctx).
-		LoginChallenge(request.Body.LoginChallenge).
-		AcceptLoginRequest(hydraRequest).
-		Execute()
-	fmt.Println(r)
-	if err != nil {
-		return PostAuthOtpVerify400JSONResponse{
-			RedirectUrl: "",
-			Ok:          false,
 		}, nil
 	}
 	return PostAuthOtpVerify200JSONResponse{
-		RedirectUrl: hydraResponse.RedirectTo,
+		Message:     "OTP verification successful",
 		Ok:          true,
+		RedirectUrl: redirectUrl,
+	}, nil
+}
+
+func (h AuthHandler) PostAuthConsentAccept(ctx context.Context, request PostAuthConsentAcceptRequestObject) (PostAuthConsentAcceptResponseObject, error) {
+	redirectUrl, err := h.service.AcceptConsent(ctx, request.Body.PhoneNumber, request.Body.ConsentChallenge)
+	if err != nil {
+		return PostAuthConsentAccept400JSONResponse{
+			Message:     err.Error(),
+			Ok:          false,
+			RedirectUrl: "",
+		}, nil
+	}
+	return PostAuthConsentAccept200JSONResponse{
+		Message:     "Consent accepted successfully",
+		Ok:          true,
+		RedirectUrl: redirectUrl,
 	}, nil
 }
 
 var _ StrictServerInterface = (*AuthHandler)(nil)
 
-func NewAuthHandler() *AuthHandler {
-	return &AuthHandler{}
+func NewAuthHandler(service service.AuthService) *AuthHandler {
+	return &AuthHandler{service: service}
 }
 
-func RegisterApp(router fiber.Router) {
-	//authGroup := router.Group("/auth")
-	server := NewStrictHandler(NewAuthHandler(), nil)
+func (h AuthHandler) RegisterRoutes(router fiber.Router) {
+	server := NewStrictHandler(h, nil)
 	RegisterHandlers(router, server)
-
 }
diff --git a/internal/api/auth/repo/auth_repo.go b/internal/api/auth/repo/auth_repo.go
new file mode 100644
index 0000000..a5500e2
--- /dev/null
+++ b/internal/api/auth/repo/auth_repo.go
@@ -0,0 +1,45 @@
+package repo
+
+import (
+	"context"
+	"time"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/domain"
+	"github.com/redis/rueidis"
+)
+
+type authRepo struct {
+	redisClient rueidis.Client
+}
+
+func (a authRepo) GetOtpRequest(ctx context.Context, uuid string) (*string, error) {
+	redisClient := a.redisClient
+
+	resp, err := redisClient.Do(ctx, redisClient.B().Get().Key("otp:"+uuid).Build()).ToString()
+	if err != nil {
+		return nil, err
+	}
+
+	if resp == "" {
+		// create error
+		return nil, &domain.ErrOtpNotFound{Uuid: uuid}
+	}
+
+	return &resp, nil
+}
+
+func (a authRepo) SaveOtpRequest(ctx context.Context, uuid string, code string) error {
+	redisClient := a.redisClient
+
+	err := redisClient.Do(ctx, redisClient.B().Set().Key("otp:"+uuid).Value(code).Ex(120*time.Second).Build()).Error()
+	if err != nil {
+		return err
+	}
+
+	return nil
+
+}
+
+func NewAuthRepo(redisClient rueidis.Client) domain.AuthRepository {
+	return &authRepo{redisClient: redisClient}
+}
diff --git a/internal/api/auth/service/auth_service.go b/internal/api/auth/service/auth_service.go
new file mode 100644
index 0000000..57bff14
--- /dev/null
+++ b/internal/api/auth/service/auth_service.go
@@ -0,0 +1,167 @@
+package service
+
+import (
+	"context"
+	"strconv"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/auth/domain"
+	userDomain "git.logidex.ru/fakz9/logidex-id/internal/api/user/domain"
+	"git.logidex.ru/fakz9/logidex-id/internal/phoneutil"
+	hydraApi "github.com/ory/hydra-client-go"
+)
+
+type AuthService interface {
+	OtpRequest(ctx context.Context, phoneNumber string) error
+	OtpVerify(ctx context.Context, phoneNumber, code string, loggingChallenge string) (string, error)
+	AcceptConsent(ctx context.Context, phoneNumber string, challenge string) (string, error)
+}
+
+type authService struct {
+	repo        domain.AuthRepository
+	userRepo    userDomain.UserRepository
+	hydraClient *hydraApi.APIClient
+}
+
+func (a authService) AcceptConsent(ctx context.Context, phoneNumber string, challenge string) (string, error) {
+	phoneNumber, err := phoneutil.ParseAndFormatPhoneNumber(phoneNumber)
+	if err != nil {
+		return "", domain.ErrInvalidPhoneNumber{
+			PhoneNumber: phoneNumber,
+			Err:         err,
+		}
+	}
+	user, err := a.userRepo.GetUserByPhoneNumber(ctx, phoneNumber)
+	if err != nil {
+		return "", err
+	}
+	if user == nil {
+		return "", domain.ErrUserNotFound{PhoneNumber: phoneNumber}
+	}
+	request := hydraApi.AcceptConsentRequest{}
+	request.SetGrantScope([]string{"openid"})
+	request.SetRemember(true)
+	request.SetRememberFor(3600)
+
+	rsp, rawRsp, err := a.hydraClient.AdminApi.
+		AcceptConsentRequest(ctx).
+		ConsentChallenge(challenge).
+		AcceptConsentRequest(request).
+		Execute()
+	if err != nil {
+		return "", err
+	}
+	if rawRsp.StatusCode != 200 {
+		return "", domain.ErrInvalidHydraAccept{
+			Message: "Hydra response is nil: " + strconv.Itoa(rawRsp.StatusCode),
+			Uuid:    "",
+		}
+	}
+	redirectTo, ok := rsp.GetRedirectToOk()
+	if !ok || redirectTo == nil {
+		return "", domain.ErrInvalidHydraAccept{
+			Message: "Hydra redirectTo is nil",
+			Uuid:    "",
+		}
+	}
+	// TODO: Verify user in the database
+	_, err = a.userRepo.VerifyUser(ctx, user.Uuid.String())
+	if err != nil {
+		return "", err
+	}
+	return *redirectTo, nil
+}
+
+func (a authService) OtpRequest(ctx context.Context, phoneNumber string) error {
+	phoneNumber, err := phoneutil.ParseAndFormatPhoneNumber(phoneNumber)
+	if err != nil {
+		return domain.ErrInvalidPhoneNumber{
+			PhoneNumber: phoneNumber,
+			Err:         err,
+		}
+	}
+
+	user, err := a.userRepo.GetUserByPhoneNumber(ctx, phoneNumber)
+	//if err != nil {
+	//	return err
+	//}
+
+	if user == nil {
+		// Create a new user if it does not exist
+		user, err = a.userRepo.CreateUser(ctx, phoneNumber)
+		if err != nil {
+			return err
+		}
+	}
+	code := "123456"
+	err = a.repo.SaveOtpRequest(ctx, user.Uuid.String(), code)
+	if err != nil {
+		return err
+	}
+	// TODO implement sending OTP code via SMS
+
+	return nil
+}
+
+func (a authService) OtpVerify(ctx context.Context, phoneNumber string, code string, loggingChallenge string) (string, error) {
+	phoneNumber, err := phoneutil.ParseAndFormatPhoneNumber(phoneNumber)
+	if err != nil {
+		return "", domain.ErrInvalidPhoneNumber{
+			PhoneNumber: phoneNumber,
+			Err:         err,
+		}
+	}
+
+	user, err := a.userRepo.GetUserByPhoneNumber(ctx, phoneNumber)
+	if err != nil {
+		return "", err
+	}
+	if user == nil {
+		return "", domain.ErrUserNotFound{PhoneNumber: phoneNumber}
+	}
+	otp, err := a.repo.GetOtpRequest(ctx, user.Uuid.String())
+	if err != nil {
+		return "", err
+	}
+	if otp == nil {
+		return "", domain.ErrOtpNotFound{Uuid: user.Uuid.String()}
+	}
+	if *otp != code {
+		return "", domain.ErrOtpInvalid{Uuid: user.Uuid.String(), Code: code}
+	}
+	request := hydraApi.AcceptLoginRequest{}
+	request.SetSubject(user.Uuid.String())
+	request.SetRemember(true)
+	request.SetRememberFor(3600) // 1 hour
+
+	rsp, rawRsp, err := a.hydraClient.AdminApi.
+		AcceptLoginRequest(ctx).
+		LoginChallenge(loggingChallenge).
+		AcceptLoginRequest(request).
+		Execute()
+	if err != nil {
+		return "", err
+	}
+	if rawRsp.StatusCode != 200 {
+		return "", domain.ErrInvalidHydraAccept{
+			Message: "Hydra response is nil: " + strconv.Itoa(rawRsp.StatusCode),
+			Uuid:    user.Uuid.String(),
+		}
+	}
+
+	redirectTo, ok := rsp.GetRedirectToOk()
+	if !ok || redirectTo == nil {
+		return "", domain.ErrInvalidHydraAccept{
+			Message: "Hydra redirectTo is nil",
+			Uuid:    user.Uuid.String(),
+		}
+	}
+	return *redirectTo, nil
+}
+
+func NewAuthService(repo domain.AuthRepository, userRepo userDomain.UserRepository, hydraClient *hydraApi.APIClient) AuthService {
+	return &authService{
+		repo:        repo,
+		userRepo:    userRepo,
+		hydraClient: hydraClient,
+	}
+}
diff --git a/internal/api/user/domain/user_domain.go b/internal/api/user/domain/user_domain.go
new file mode 100644
index 0000000..2cfdd03
--- /dev/null
+++ b/internal/api/user/domain/user_domain.go
@@ -0,0 +1,27 @@
+package domain
+
+import (
+	"context"
+
+	db "git.logidex.ru/fakz9/logidex-id/internal/db/generated"
+)
+
+type User struct {
+	Uuid        string `json:"uuid"`
+	PhoneNumber string `json:"phone_number"`
+}
+
+type UserRepository interface {
+	GetUserByPhoneNumber(ctx context.Context, phoneNumber string) (*db.User, error)
+	GetUserByUuid(ctx context.Context, uuid string) (*db.User, error)
+	CreateUser(ctx context.Context, phoneNumber string) (*db.User, error)
+	VerifyUser(ctx context.Context, uuid string) (*db.User, error)
+}
+
+type ErrUserNotFound struct {
+	PhoneNumber string
+}
+
+func (e ErrUserNotFound) Error() string {
+	return "User not found with phone number: " + e.PhoneNumber
+}
diff --git a/internal/api/user/fx.go b/internal/api/user/fx.go
new file mode 100644
index 0000000..dcce6b9
--- /dev/null
+++ b/internal/api/user/fx.go
@@ -0,0 +1,20 @@
+package user
+
+import (
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/handler"
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/repo"
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/service"
+	"github.com/gofiber/fiber/v2"
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(
+		repo.NewUserRepo,
+		service.NewUserService,
+		handler.NewUserHandler,
+	),
+	fx.Invoke(func(handler *handler.UserHandler, router fiber.Router) {
+		handler.RegisterRoutes(router)
+	}),
+)
diff --git a/internal/api/user/handler/gen.go b/internal/api/user/handler/gen.go
index dff8a44..941ab67 100644
--- a/internal/api/user/handler/gen.go
+++ b/internal/api/user/handler/gen.go
@@ -9,52 +9,30 @@ import (
 
 	"github.com/gofiber/fiber/v2"
 	"github.com/oapi-codegen/runtime"
-	openapi_types "github.com/oapi-codegen/runtime/types"
 )
 
 // User defines model for User.
 type User struct {
-	Email    openapi_types.Email `json:"email"`
-	Id       string              `json:"id"`
-	Username string              `json:"username"`
+	PhoneNumber string `json:"phone_number"`
+	Uuid        string `json:"uuid"`
 }
 
 // UserCreate defines model for UserCreate.
 type UserCreate struct {
-	Email    openapi_types.Email `json:"email"`
-	Password string              `json:"password"`
-	Username string              `json:"username"`
+	PhoneNumber string `json:"phone_number"`
 }
 
-// UserUpdate defines model for UserUpdate.
-type UserUpdate struct {
-	Email    openapi_types.Email `json:"email"`
-	Username string              `json:"username"`
-}
-
-// PostUsersJSONRequestBody defines body for PostUsers for application/json ContentType.
-type PostUsersJSONRequestBody = UserCreate
-
-// PutUsersUserIdJSONRequestBody defines body for PutUsersUserId for application/json ContentType.
-type PutUsersUserIdJSONRequestBody = UserUpdate
+// CreateUserJSONRequestBody defines body for CreateUser for application/json ContentType.
+type CreateUserJSONRequestBody = UserCreate
 
 // ServerInterface represents all server handlers.
 type ServerInterface interface {
-	// Get all users
-	// (GET /users)
-	GetUsers(c *fiber.Ctx) error
-	// Create a new user
+	// Create a new user with phone number
 	// (POST /users)
-	PostUsers(c *fiber.Ctx) error
-	// Delete a user by ID
-	// (DELETE /users/{userId})
-	DeleteUsersUserId(c *fiber.Ctx, userId string) error
+	CreateUser(c *fiber.Ctx) error
 	// Get a user by ID
 	// (GET /users/{userId})
-	GetUsersUserId(c *fiber.Ctx, userId string) error
-	// Update a user by ID
-	// (PUT /users/{userId})
-	PutUsersUserId(c *fiber.Ctx, userId string) error
+	GetUserById(c *fiber.Ctx, userId string) error
 }
 
 // ServerInterfaceWrapper converts contexts to parameters.
@@ -64,20 +42,14 @@ type ServerInterfaceWrapper struct {
 
 type MiddlewareFunc fiber.Handler
 
-// GetUsers operation middleware
-func (siw *ServerInterfaceWrapper) GetUsers(c *fiber.Ctx) error {
+// CreateUser operation middleware
+func (siw *ServerInterfaceWrapper) CreateUser(c *fiber.Ctx) error {
 
-	return siw.Handler.GetUsers(c)
+	return siw.Handler.CreateUser(c)
 }
 
-// PostUsers operation middleware
-func (siw *ServerInterfaceWrapper) PostUsers(c *fiber.Ctx) error {
-
-	return siw.Handler.PostUsers(c)
-}
-
-// DeleteUsersUserId operation middleware
-func (siw *ServerInterfaceWrapper) DeleteUsersUserId(c *fiber.Ctx) error {
+// GetUserById operation middleware
+func (siw *ServerInterfaceWrapper) GetUserById(c *fiber.Ctx) error {
 
 	var err error
 
@@ -89,39 +61,7 @@ func (siw *ServerInterfaceWrapper) DeleteUsersUserId(c *fiber.Ctx) error {
 		return fiber.NewError(fiber.StatusBadRequest, fmt.Errorf("Invalid format for parameter userId: %w", err).Error())
 	}
 
-	return siw.Handler.DeleteUsersUserId(c, userId)
-}
-
-// GetUsersUserId operation middleware
-func (siw *ServerInterfaceWrapper) GetUsersUserId(c *fiber.Ctx) error {
-
-	var err error
-
-	// ------------- Path parameter "userId" -------------
-	var userId string
-
-	err = runtime.BindStyledParameterWithOptions("simple", "userId", c.Params("userId"), &userId, runtime.BindStyledParameterOptions{Explode: false, Required: true})
-	if err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, fmt.Errorf("Invalid format for parameter userId: %w", err).Error())
-	}
-
-	return siw.Handler.GetUsersUserId(c, userId)
-}
-
-// PutUsersUserId operation middleware
-func (siw *ServerInterfaceWrapper) PutUsersUserId(c *fiber.Ctx) error {
-
-	var err error
-
-	// ------------- Path parameter "userId" -------------
-	var userId string
-
-	err = runtime.BindStyledParameterWithOptions("simple", "userId", c.Params("userId"), &userId, runtime.BindStyledParameterOptions{Explode: false, Required: true})
-	if err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, fmt.Errorf("Invalid format for parameter userId: %w", err).Error())
-	}
-
-	return siw.Handler.PutUsersUserId(c, userId)
+	return siw.Handler.GetUserById(c, userId)
 }
 
 // FiberServerOptions provides options for the Fiber server.
@@ -145,143 +85,67 @@ func RegisterHandlersWithOptions(router fiber.Router, si ServerInterface, option
 		router.Use(fiber.Handler(m))
 	}
 
-	router.Get(options.BaseURL+"/users", wrapper.GetUsers)
+	router.Post(options.BaseURL+"/users", wrapper.CreateUser)
 
-	router.Post(options.BaseURL+"/users", wrapper.PostUsers)
-
-	router.Delete(options.BaseURL+"/users/:userId", wrapper.DeleteUsersUserId)
-
-	router.Get(options.BaseURL+"/users/:userId", wrapper.GetUsersUserId)
-
-	router.Put(options.BaseURL+"/users/:userId", wrapper.PutUsersUserId)
+	router.Get(options.BaseURL+"/users/:userId", wrapper.GetUserById)
 
 }
 
-type GetUsersRequestObject struct {
+type CreateUserRequestObject struct {
+	Body *CreateUserJSONRequestBody
 }
 
-type GetUsersResponseObject interface {
-	VisitGetUsersResponse(ctx *fiber.Ctx) error
+type CreateUserResponseObject interface {
+	VisitCreateUserResponse(ctx *fiber.Ctx) error
 }
 
-type GetUsers200JSONResponse []User
+type CreateUser200JSONResponse User
 
-func (response GetUsers200JSONResponse) VisitGetUsersResponse(ctx *fiber.Ctx) error {
+func (response CreateUser200JSONResponse) VisitCreateUserResponse(ctx *fiber.Ctx) error {
 	ctx.Response().Header.Set("Content-Type", "application/json")
 	ctx.Status(200)
 
 	return ctx.JSON(&response)
 }
 
-type PostUsersRequestObject struct {
-	Body *PostUsersJSONRequestBody
-}
-
-type PostUsersResponseObject interface {
-	VisitPostUsersResponse(ctx *fiber.Ctx) error
-}
-
-type PostUsers201JSONResponse User
-
-func (response PostUsers201JSONResponse) VisitPostUsersResponse(ctx *fiber.Ctx) error {
-	ctx.Response().Header.Set("Content-Type", "application/json")
-	ctx.Status(201)
-
-	return ctx.JSON(&response)
-}
-
-type DeleteUsersUserIdRequestObject struct {
+type GetUserByIdRequestObject struct {
 	UserId string `json:"userId"`
 }
 
-type DeleteUsersUserIdResponseObject interface {
-	VisitDeleteUsersUserIdResponse(ctx *fiber.Ctx) error
+type GetUserByIdResponseObject interface {
+	VisitGetUserByIdResponse(ctx *fiber.Ctx) error
 }
 
-type DeleteUsersUserId204Response struct {
+type GetUserById200JSONResponse struct {
+	User User `json:"user"`
 }
 
-func (response DeleteUsersUserId204Response) VisitDeleteUsersUserIdResponse(ctx *fiber.Ctx) error {
-	ctx.Status(204)
-	return nil
-}
-
-type DeleteUsersUserId404Response struct {
-}
-
-func (response DeleteUsersUserId404Response) VisitDeleteUsersUserIdResponse(ctx *fiber.Ctx) error {
-	ctx.Status(404)
-	return nil
-}
-
-type GetUsersUserIdRequestObject struct {
-	UserId string `json:"userId"`
-}
-
-type GetUsersUserIdResponseObject interface {
-	VisitGetUsersUserIdResponse(ctx *fiber.Ctx) error
-}
-
-type GetUsersUserId200JSONResponse User
-
-func (response GetUsersUserId200JSONResponse) VisitGetUsersUserIdResponse(ctx *fiber.Ctx) error {
+func (response GetUserById200JSONResponse) VisitGetUserByIdResponse(ctx *fiber.Ctx) error {
 	ctx.Response().Header.Set("Content-Type", "application/json")
 	ctx.Status(200)
 
 	return ctx.JSON(&response)
 }
 
-type GetUsersUserId404Response struct {
+type GetUserById404JSONResponse struct {
+	Message string `json:"message"`
 }
 
-func (response GetUsersUserId404Response) VisitGetUsersUserIdResponse(ctx *fiber.Ctx) error {
-	ctx.Status(404)
-	return nil
-}
-
-type PutUsersUserIdRequestObject struct {
-	UserId string `json:"userId"`
-	Body   *PutUsersUserIdJSONRequestBody
-}
-
-type PutUsersUserIdResponseObject interface {
-	VisitPutUsersUserIdResponse(ctx *fiber.Ctx) error
-}
-
-type PutUsersUserId200JSONResponse User
-
-func (response PutUsersUserId200JSONResponse) VisitPutUsersUserIdResponse(ctx *fiber.Ctx) error {
+func (response GetUserById404JSONResponse) VisitGetUserByIdResponse(ctx *fiber.Ctx) error {
 	ctx.Response().Header.Set("Content-Type", "application/json")
-	ctx.Status(200)
+	ctx.Status(404)
 
 	return ctx.JSON(&response)
 }
 
-type PutUsersUserId404Response struct {
-}
-
-func (response PutUsersUserId404Response) VisitPutUsersUserIdResponse(ctx *fiber.Ctx) error {
-	ctx.Status(404)
-	return nil
-}
-
 // StrictServerInterface represents all server handlers.
 type StrictServerInterface interface {
-	// Get all users
-	// (GET /users)
-	GetUsers(ctx context.Context, request GetUsersRequestObject) (GetUsersResponseObject, error)
-	// Create a new user
+	// Create a new user with phone number
 	// (POST /users)
-	PostUsers(ctx context.Context, request PostUsersRequestObject) (PostUsersResponseObject, error)
-	// Delete a user by ID
-	// (DELETE /users/{userId})
-	DeleteUsersUserId(ctx context.Context, request DeleteUsersUserIdRequestObject) (DeleteUsersUserIdResponseObject, error)
+	CreateUser(ctx context.Context, request CreateUserRequestObject) (CreateUserResponseObject, error)
 	// Get a user by ID
 	// (GET /users/{userId})
-	GetUsersUserId(ctx context.Context, request GetUsersUserIdRequestObject) (GetUsersUserIdResponseObject, error)
-	// Update a user by ID
-	// (PUT /users/{userId})
-	PutUsersUserId(ctx context.Context, request PutUsersUserIdRequestObject) (PutUsersUserIdResponseObject, error)
+	GetUserById(ctx context.Context, request GetUserByIdRequestObject) (GetUserByIdResponseObject, error)
 }
 
 type StrictHandlerFunc func(ctx *fiber.Ctx, args interface{}) (interface{}, error)
@@ -297,54 +161,29 @@ type strictHandler struct {
 	middlewares []StrictMiddlewareFunc
 }
 
-// GetUsers operation middleware
-func (sh *strictHandler) GetUsers(ctx *fiber.Ctx) error {
-	var request GetUsersRequestObject
+// CreateUser operation middleware
+func (sh *strictHandler) CreateUser(ctx *fiber.Ctx) error {
+	var request CreateUserRequestObject
 
-	handler := func(ctx *fiber.Ctx, request interface{}) (interface{}, error) {
-		return sh.ssi.GetUsers(ctx.UserContext(), request.(GetUsersRequestObject))
-	}
-	for _, middleware := range sh.middlewares {
-		handler = middleware(handler, "GetUsers")
-	}
-
-	response, err := handler(ctx, request)
-
-	if err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	} else if validResponse, ok := response.(GetUsersResponseObject); ok {
-		if err := validResponse.VisitGetUsersResponse(ctx); err != nil {
-			return fiber.NewError(fiber.StatusBadRequest, err.Error())
-		}
-	} else if response != nil {
-		return fmt.Errorf("unexpected response type: %T", response)
-	}
-	return nil
-}
-
-// PostUsers operation middleware
-func (sh *strictHandler) PostUsers(ctx *fiber.Ctx) error {
-	var request PostUsersRequestObject
-
-	var body PostUsersJSONRequestBody
+	var body CreateUserJSONRequestBody
 	if err := ctx.BodyParser(&body); err != nil {
 		return fiber.NewError(fiber.StatusBadRequest, err.Error())
 	}
 	request.Body = &body
 
 	handler := func(ctx *fiber.Ctx, request interface{}) (interface{}, error) {
-		return sh.ssi.PostUsers(ctx.UserContext(), request.(PostUsersRequestObject))
+		return sh.ssi.CreateUser(ctx.UserContext(), request.(CreateUserRequestObject))
 	}
 	for _, middleware := range sh.middlewares {
-		handler = middleware(handler, "PostUsers")
+		handler = middleware(handler, "CreateUser")
 	}
 
 	response, err := handler(ctx, request)
 
 	if err != nil {
 		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	} else if validResponse, ok := response.(PostUsersResponseObject); ok {
-		if err := validResponse.VisitPostUsersResponse(ctx); err != nil {
+	} else if validResponse, ok := response.(CreateUserResponseObject); ok {
+		if err := validResponse.VisitCreateUserResponse(ctx); err != nil {
 			return fiber.NewError(fiber.StatusBadRequest, err.Error())
 		}
 	} else if response != nil {
@@ -353,85 +192,25 @@ func (sh *strictHandler) PostUsers(ctx *fiber.Ctx) error {
 	return nil
 }
 
-// DeleteUsersUserId operation middleware
-func (sh *strictHandler) DeleteUsersUserId(ctx *fiber.Ctx, userId string) error {
-	var request DeleteUsersUserIdRequestObject
+// GetUserById operation middleware
+func (sh *strictHandler) GetUserById(ctx *fiber.Ctx, userId string) error {
+	var request GetUserByIdRequestObject
 
 	request.UserId = userId
 
 	handler := func(ctx *fiber.Ctx, request interface{}) (interface{}, error) {
-		return sh.ssi.DeleteUsersUserId(ctx.UserContext(), request.(DeleteUsersUserIdRequestObject))
+		return sh.ssi.GetUserById(ctx.UserContext(), request.(GetUserByIdRequestObject))
 	}
 	for _, middleware := range sh.middlewares {
-		handler = middleware(handler, "DeleteUsersUserId")
+		handler = middleware(handler, "GetUserById")
 	}
 
 	response, err := handler(ctx, request)
 
 	if err != nil {
 		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	} else if validResponse, ok := response.(DeleteUsersUserIdResponseObject); ok {
-		if err := validResponse.VisitDeleteUsersUserIdResponse(ctx); err != nil {
-			return fiber.NewError(fiber.StatusBadRequest, err.Error())
-		}
-	} else if response != nil {
-		return fmt.Errorf("unexpected response type: %T", response)
-	}
-	return nil
-}
-
-// GetUsersUserId operation middleware
-func (sh *strictHandler) GetUsersUserId(ctx *fiber.Ctx, userId string) error {
-	var request GetUsersUserIdRequestObject
-
-	request.UserId = userId
-
-	handler := func(ctx *fiber.Ctx, request interface{}) (interface{}, error) {
-		return sh.ssi.GetUsersUserId(ctx.UserContext(), request.(GetUsersUserIdRequestObject))
-	}
-	for _, middleware := range sh.middlewares {
-		handler = middleware(handler, "GetUsersUserId")
-	}
-
-	response, err := handler(ctx, request)
-
-	if err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	} else if validResponse, ok := response.(GetUsersUserIdResponseObject); ok {
-		if err := validResponse.VisitGetUsersUserIdResponse(ctx); err != nil {
-			return fiber.NewError(fiber.StatusBadRequest, err.Error())
-		}
-	} else if response != nil {
-		return fmt.Errorf("unexpected response type: %T", response)
-	}
-	return nil
-}
-
-// PutUsersUserId operation middleware
-func (sh *strictHandler) PutUsersUserId(ctx *fiber.Ctx, userId string) error {
-	var request PutUsersUserIdRequestObject
-
-	request.UserId = userId
-
-	var body PutUsersUserIdJSONRequestBody
-	if err := ctx.BodyParser(&body); err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	}
-	request.Body = &body
-
-	handler := func(ctx *fiber.Ctx, request interface{}) (interface{}, error) {
-		return sh.ssi.PutUsersUserId(ctx.UserContext(), request.(PutUsersUserIdRequestObject))
-	}
-	for _, middleware := range sh.middlewares {
-		handler = middleware(handler, "PutUsersUserId")
-	}
-
-	response, err := handler(ctx, request)
-
-	if err != nil {
-		return fiber.NewError(fiber.StatusBadRequest, err.Error())
-	} else if validResponse, ok := response.(PutUsersUserIdResponseObject); ok {
-		if err := validResponse.VisitPutUsersUserIdResponse(ctx); err != nil {
+	} else if validResponse, ok := response.(GetUserByIdResponseObject); ok {
+		if err := validResponse.VisitGetUserByIdResponse(ctx); err != nil {
 			return fiber.NewError(fiber.StatusBadRequest, err.Error())
 		}
 	} else if response != nil {
diff --git a/internal/api/user/handler/generate.go b/internal/api/user/handler/generate.go
index 448a883..602f2ba 100644
--- a/internal/api/user/handler/generate.go
+++ b/internal/api/user/handler/generate.go
@@ -1,3 +1,3 @@
 package handler
 
-//go:generate go tool oapi-codegen -config  ../../../../api/user/cfg.yaml  ../../../../api/user/user.yaml
+//go:generate go tool oapi-codegen -config  ../../../../api/user/cfg.yaml  ../../../../api/user/api.yaml
diff --git a/internal/api/user/handler/impl.go b/internal/api/user/handler/impl.go
index a6bfd45..c69e9c5 100644
--- a/internal/api/user/handler/impl.go
+++ b/internal/api/user/handler/impl.go
@@ -2,46 +2,52 @@ package handler
 
 import (
 	"context"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/service"
 	"github.com/gofiber/fiber/v2"
+	"github.com/jinzhu/copier"
 )
 
 type UserHandler struct {
+	service service.UserService
+}
+
+func (h UserHandler) CreateUser(ctx context.Context, request CreateUserRequestObject) (CreateUserResponseObject, error) {
+	//TODO implement me
+	panic("implement me")
+}
+
+func (h UserHandler) GetUserById(ctx context.Context, request GetUserByIdRequestObject) (GetUserByIdResponseObject, error) {
+	user, err := h.service.GetUserByUuid(ctx, request.UserId)
+	if err != nil {
+		return GetUserById404JSONResponse{
+			Message: err.Error(),
+		}, nil
+	}
+	var responseUser User
+	err = copier.Copy(responseUser, user)
+	if err != nil {
+		return GetUserById404JSONResponse{Message: err.Error()}, nil
+
+	}
+	return GetUserById200JSONResponse{User: responseUser}, nil
 }
 
 var _ StrictServerInterface = (*UserHandler)(nil)
 
-func (u UserHandler) GetUsers(ctx context.Context, request GetUsersRequestObject) (GetUsersResponseObject, error) {
-	var response = make([]User, 0)
-
-	return GetUsers200JSONResponse(response), nil
+func NewUserHandler(
+	service service.UserService,
+) *UserHandler {
+	return &UserHandler{service: service}
 }
 
-func (u UserHandler) PostUsers(ctx context.Context, request PostUsersRequestObject) (PostUsersResponseObject, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (u UserHandler) DeleteUsersUserId(ctx context.Context, request DeleteUsersUserIdRequestObject) (DeleteUsersUserIdResponseObject, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (u UserHandler) GetUsersUserId(ctx context.Context, request GetUsersUserIdRequestObject) (GetUsersUserIdResponseObject, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func (u UserHandler) PutUsersUserId(ctx context.Context, request PutUsersUserIdRequestObject) (PutUsersUserIdResponseObject, error) {
-	//TODO implement me
-	panic("implement me")
-}
-
-func NewUserHandler() *UserHandler {
-	return &UserHandler{}
-}
-
-func RegisterApp(router fiber.Router) {
-	server := NewStrictHandler(NewUserHandler(), nil)
+func (h UserHandler) RegisterRoutes(router fiber.Router) {
+	server := NewStrictHandler(h, nil)
 	RegisterHandlers(router, server)
-
 }
+
+//func RegisterUserHandler(router fiber.Router) {
+//	server := NewStrictHandler(NewUserHandler(), nil)
+//	RegisterHandlers(router, server)
+//
+//}
diff --git a/internal/api/user/repo/user_repo.go b/internal/api/user/repo/user_repo.go
new file mode 100644
index 0000000..079b89d
--- /dev/null
+++ b/internal/api/user/repo/user_repo.go
@@ -0,0 +1,70 @@
+package repo
+
+import (
+	"context"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/domain"
+	db "git.logidex.ru/fakz9/logidex-id/internal/db/generated"
+	"github.com/google/uuid"
+)
+
+type userRepo struct {
+	db db.DBTX
+}
+
+func (u userRepo) VerifyUser(ctx context.Context, requestUuid string) (*db.User, error) {
+	//TODO implement me
+
+	queries := db.New(u.db)
+	uuidParsed, err := uuid.Parse(requestUuid)
+	if err != nil {
+		return nil, err
+	}
+	dbUser, err := queries.UpdateUserVerified(ctx, uuidParsed)
+	if err != nil {
+		return nil, err
+	}
+	return &dbUser, nil
+}
+
+func (u userRepo) GetUserByUuid(ctx context.Context, requestUuid string) (*db.User, error) {
+	queries := db.New(u.db)
+	uuidParsed, err := uuid.Parse(requestUuid)
+	if err != nil {
+		return nil, err
+	}
+	dbUser, err := queries.GetUserByUUID(ctx, uuidParsed)
+	if err != nil {
+		return nil, err
+	}
+	return &dbUser, nil
+}
+
+func userFromDbToDomain(dbUser db.User) *domain.User {
+	return &domain.User{
+		PhoneNumber: dbUser.PhoneNumber,
+		Uuid:        dbUser.Uuid.String(),
+	}
+}
+
+func (u userRepo) CreateUser(ctx context.Context, phoneNumber string) (*db.User, error) {
+	queries := db.New(u.db)
+	user, err := queries.CreateUser(ctx, phoneNumber)
+	if err != nil {
+		return nil, err
+	}
+	return &user, nil
+}
+
+func (u userRepo) GetUserByPhoneNumber(ctx context.Context, phoneNumber string) (*db.User, error) {
+	queries := db.New(u.db)
+	dbUser, err := queries.GetByPhoneNumber(ctx, phoneNumber)
+	if err != nil {
+		return nil, err
+	}
+	return &dbUser, nil
+}
+
+func NewUserRepo(db db.DBTX) domain.UserRepository {
+	return &userRepo{db: db}
+}
diff --git a/internal/api/user/repository/base.go b/internal/api/user/repository/base.go
deleted file mode 100644
index abdfea6..0000000
--- a/internal/api/user/repository/base.go
+++ /dev/null
@@ -1,4 +0,0 @@
-package repository
-
-type UserRepo interface {
-}
diff --git a/internal/api/user/service/user_service.go b/internal/api/user/service/user_service.go
index 2c02358..243daa7 100644
--- a/internal/api/user/service/user_service.go
+++ b/internal/api/user/service/user_service.go
@@ -1,13 +1,47 @@
 package service
 
 import (
-	"git.logidex.ru/fakz9/logidex-id/internal/api/user/repository"
+	"context"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/api/user/domain"
 )
 
-type UserService struct {
-	repo *repository.UserRepo
+type UserService interface {
+	GetUserByPhoneNumber(ctx context.Context, phoneNumber string) (*domain.User, error)
+	GetUserByUuid(ctx context.Context, phoneNumber string) (*domain.User, error)
+}
+type userService struct {
+	repo domain.UserRepository
 }
 
-func NewUserService(repo *repository.UserRepo) *UserService {
-	return &UserService{repo: repo}
+func (u userService) GetUserByUuid(ctx context.Context, uuid string) (*domain.User, error) {
+	dbUser, err := u.repo.GetUserByUuid(ctx, uuid)
+	if err != nil {
+		return nil, err
+	}
+	if dbUser == nil {
+		return nil, domain.ErrUserNotFound{PhoneNumber: uuid}
+	}
+	return &domain.User{
+		Uuid:        dbUser.Uuid.String(),
+		PhoneNumber: dbUser.PhoneNumber,
+	}, nil
+}
+
+func (u userService) GetUserByPhoneNumber(ctx context.Context, phoneNumber string) (*domain.User, error) {
+	dbUser, err := u.repo.GetUserByPhoneNumber(ctx, phoneNumber)
+	if err != nil {
+		return nil, err
+	}
+	if dbUser == nil {
+		return nil, domain.ErrUserNotFound{PhoneNumber: phoneNumber}
+	}
+	return &domain.User{
+		Uuid:        dbUser.Uuid.String(),
+		PhoneNumber: dbUser.PhoneNumber,
+	}, nil
+}
+
+func NewUserService(repo domain.UserRepository) UserService {
+	return &userService{repo: repo}
 }
diff --git a/internal/config/config.go b/internal/config/config.go
index 00d155f..fca22e4 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -1,9 +1,10 @@
 package config
 
 import (
+	"log"
+
 	"github.com/joho/godotenv"
 	"github.com/spf13/viper"
-	"log"
 )
 
 type Config struct {
@@ -20,11 +21,16 @@ type Config struct {
 		Host     string
 		Password string
 	}
+	DB struct {
+		Host     string
+		Port     int
+		User     string
+		Password string
+		Dbname   string
+	}
 }
 
-var Cfg *Config
-
-func Init() {
+func NewConfig() Config {
 	err := godotenv.Load()
 	if err != nil {
 		log.Println("Error loading .env file")
@@ -48,5 +54,5 @@ func Init() {
 	if err != nil {
 		log.Fatalf("Unable to decode config into struct, %v", err)
 	}
-	Cfg = &config
+	return config
 }
diff --git a/internal/db/database.go b/internal/db/database.go
new file mode 100644
index 0000000..6e3c97c
--- /dev/null
+++ b/internal/db/database.go
@@ -0,0 +1,24 @@
+package db
+
+import (
+	"context"
+	"strconv"
+
+	"git.logidex.ru/fakz9/logidex-id/internal/config"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+func NewDatabasePool(cfg config.Config) *pgxpool.Pool {
+	ctx := context.Background()
+	connUrl := "postgresql://" + cfg.DB.User + ":" + cfg.DB.Password + "@" + cfg.DB.Host + ":" + strconv.Itoa(cfg.DB.Port) + "/" + cfg.DB.Dbname
+
+	pool, err := pgxpool.New(ctx, connUrl)
+	if err != nil {
+		panic("Failed to connect to database: " + err.Error())
+	}
+	err = pool.Ping(ctx)
+	if err != nil {
+		panic("Failed to ping database: " + err.Error())
+	}
+	return pool
+}
diff --git a/internal/db/fx.go b/internal/db/fx.go
new file mode 100644
index 0000000..76f7ffd
--- /dev/null
+++ b/internal/db/fx.go
@@ -0,0 +1,15 @@
+package db
+
+import (
+	sqlcdb "git.logidex.ru/fakz9/logidex-id/internal/db/generated"
+	"go.uber.org/fx"
+)
+
+var Module = fx.Options(
+	fx.Provide(
+		fx.Annotate(
+			NewDatabasePool,
+			fx.As(new(sqlcdb.DBTX)),
+		),
+	),
+)
diff --git a/internal/db/migrations/001_init.sql b/internal/db/migrations/001_init.sql
new file mode 100644
index 0000000..ff55d76
--- /dev/null
+++ b/internal/db/migrations/001_init.sql
@@ -0,0 +1,9 @@
+CREATE TABLE IF NOT EXISTS users
+(
+    uuid         UUID PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+    phone_number VARCHAR(20)                                NOT NULL CHECK (phone_number ~ '^\+[0-9]{10,15}$'),
+    created_at   TIMESTAMP        DEFAULT CURRENT_TIMESTAMP NOT NULL,
+    verified     BOOLEAN          DEFAULT FALSE             NOT NULL,
+    verified_at  TIMESTAMP                                  NULL
+
+);
\ No newline at end of file
diff --git a/internal/db/queries/users.sql b/internal/db/queries/users.sql
new file mode 100644
index 0000000..641d512
--- /dev/null
+++ b/internal/db/queries/users.sql
@@ -0,0 +1,23 @@
+-- name: GetByPhoneNumber :one
+SELECT *
+FROM users
+WHERE phone_number = $1
+LIMIT 1;
+
+-- name: GetUserByUUID :one
+SELECT *
+FROM users
+WHERE uuid = $1
+LIMIT 1;
+
+-- name: CreateUser :one
+INSERT INTO users (phone_number)
+VALUES ($1)
+RETURNING *;
+
+-- name: UpdateUserVerified :one
+UPDATE users
+SET verified    = TRUE,
+    verified_at = CURRENT_TIMESTAMP
+WHERE uuid = $1
+RETURNING *;
diff --git a/internal/hydra_client/hydra_client.go b/internal/hydra_client/hydra_client.go
index 09253ad..f6f3aa8 100644
--- a/internal/hydra_client/hydra_client.go
+++ b/internal/hydra_client/hydra_client.go
@@ -3,26 +3,15 @@ package hydra_client
 import (
 	"git.logidex.ru/fakz9/logidex-id/internal/config"
 	hydraApi "github.com/ory/hydra-client-go"
-	"sync"
 )
 
-var (
-	client     *hydraApi.APIClient
-	initClient sync.Once
-)
-
-func InitClient() {
+func NewHydraClient(appConfig config.Config) *hydraApi.APIClient {
 	cfg := hydraApi.NewConfiguration()
-	cfg.AddDefaultHeader("X-Secret", config.Cfg.Hydra.Password)
+	cfg.AddDefaultHeader("X-Secret", appConfig.Hydra.Password)
 	cfg.Servers = []hydraApi.ServerConfiguration{
 		{
-			URL: config.Cfg.Hydra.Host,
+			URL: appConfig.Hydra.Host,
 		},
 	}
-	client = hydraApi.NewAPIClient(cfg)
-}
-
-func GetClient() *hydraApi.APIClient {
-	initClient.Do(InitClient)
-	return client
+	return hydraApi.NewAPIClient(cfg)
 }
diff --git a/internal/phoneutil/phoneutil.go b/internal/phoneutil/phoneutil.go
new file mode 100644
index 0000000..1e3618b
--- /dev/null
+++ b/internal/phoneutil/phoneutil.go
@@ -0,0 +1,19 @@
+package phoneutil
+
+import (
+	"errors"
+
+	"github.com/nyaruka/phonenumbers"
+)
+
+func ParseAndFormatPhoneNumber(phoneNumber string) (string, error) {
+	parsedNumber, err := phonenumbers.Parse(phoneNumber, "RU")
+	if err != nil {
+		return "", err
+	}
+	result := phonenumbers.Format(parsedNumber, phonenumbers.E164)
+	if result == "" {
+		return "", errors.New("failed to format phone number")
+	}
+	return result, nil
+}
diff --git a/internal/redis/client.go b/internal/redis/client.go
index dc0f75a..b8f16ec 100644
--- a/internal/redis/client.go
+++ b/internal/redis/client.go
@@ -1,26 +1,21 @@
 package redis
 
 import (
+	"strconv"
+
 	"git.logidex.ru/fakz9/logidex-id/internal/config"
 	"github.com/redis/rueidis"
-	"strconv"
 )
 
-var client rueidis.Client
-
-func Init() error {
+func NewRedisClient(cfg config.Config) rueidis.Client {
 	var err error
-	client, err = rueidis.NewClient(rueidis.ClientOption{
+	client, err := rueidis.NewClient(rueidis.ClientOption{
 		// Set the address of your Redis server
-		InitAddress: []string{config.Cfg.Redis.Host + ":" + strconv.Itoa(config.Cfg.Redis.Port)},
-		Password:    config.Cfg.Redis.Password,
+		InitAddress: []string{cfg.Redis.Host + ":" + strconv.Itoa(cfg.Redis.Port)},
+		Password:    cfg.Redis.Password,
 	})
 	if err != nil {
-		return err
+		return nil
 	}
-	return nil
-}
-
-func GetClient() rueidis.Client {
 	return client
 }
diff --git a/sqlc.yaml b/sqlc.yaml
new file mode 100644
index 0000000..3684a7e
--- /dev/null
+++ b/sqlc.yaml
@@ -0,0 +1,35 @@
+version: "2"
+sql:
+  - engine: postgresql
+    schema: "internal/db/migrations"
+    queries: "internal/db/queries"
+    gen:
+      go:
+        package: "db"
+        out: "internal/db/generated"
+        sql_package: "pgx/v5"
+        emit_interface: true
+        emit_json_tags: true
+        emit_pointers_for_null_types: true
+        overrides:
+          # Timestamp
+          - db_type: "pg_catalog.timestamp"
+            nullable: true
+            go_type:
+              import: "time"
+              type: "Time"
+              pointer: true
+          - db_type: "pg_catalog.timestamp"
+            go_type: "time.Time"
+          # UUID
+          - db_type: "uuid"
+            go_type:
+              import: "github.com/google/uuid"
+              type: "UUID"
+          - db_type: "uuid"
+            nullable: true
+            go_type:
+              import: "github.com/google/uuid"
+              type: "UUID"
+              pointer: true
+