diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
new file mode 100644
index 0000000..a626139
--- /dev/null
+++ b/.github/workflows/check.yml
@@ -0,0 +1,42 @@
+name: Check
+on: push
+jobs: 
+  golangci-lint:
+    runs-on: ubuntu-latest
+    steps: 
+      - name: Checkout
+        uses: actions/checkout@v7
+      - name: Setup Go
+        uses: actions/setup-go@v6
+        with:
+          go-version: "1.26"
+      - name: install deps
+        run: go mod download
+      - name: Lint
+        run: go vet ./...
+  test:
+    needs: [golangci-lint]
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go-version: ['1.25', '1.26']
+        os: ['ubuntu-latest', 'windows-latest']
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v7
+      - name: Setup GO
+        uses: actions/setup-go@v6
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: install deps
+        run: go mod download
+      - name: Run tests
+        run: go test -coverprofile=coverage.out ./internal/...
+      - name: Check coverage threshold
+        run: |
+            COVERAGE=$(go tool cover -func=coverage.out | grep total | awk '{print $3}' | tr -d '%')
+            echo "Coverage: $COVERAGE%"
+            if (( $(echo "$COVERAGE < 25" | bc -l) )); then
+              echo "Coverage is below 25%"
+              exit 1
+            fi
\ No newline at end of file
diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..e889c90
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1 @@
+#todo dockerfile....
\ No newline at end of file
diff --git a/cmd/server/.env.example b/cmd/server/.env.example
new file mode 100644
index 0000000..7ddb1d7
--- /dev/null
+++ b/cmd/server/.env.example
@@ -0,0 +1,14 @@
+ENVIRONMENT=
+LOG_LEVEL=
+
+POSTGRES_HOST=
+POSTGRES_PORT=
+POSTGRES_DB=
+POSTGRES_USER=
+POSTGRES_PASSWORD=
+POSTGRES_SSL=
+
+REDIS_HOST=
+REDIS_PORT=
+REDIS_USER=
+REDIS_PASSWORD=
\ No newline at end of file
diff --git a/cmd/server/.gitignore b/cmd/server/.gitignore
new file mode 100644
index 0000000..4c49bd7
--- /dev/null
+++ b/cmd/server/.gitignore
@@ -0,0 +1 @@
+.env
diff --git a/cmd/server/main.go b/cmd/server/main.go
index a5f6c35..0470ba9 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -1,76 +1,85 @@
-package main
-
-import (
-	"database/sql"
-	"io"
-	"log/slog"
-	"net/http"
-	"os"
-	"path/filepath"
-
-	handlers "processing/internal/delivery/http"
-	"processing/internal/infrastructure/cache"
-	"processing/internal/infrastructure/storage"
-	"processing/internal/usecase"
-
-	_ "github.com/jackc/pgx/v5/stdlib"
-)
-
-const (
-	db_url    = "postgres://admin:secret@localhost:5432/postgres_bd"
-	redis_url = "localhost:6379"
-)
-
-func main() {
-	if err := run(); err != nil {
-		os.Exit(1)
-	}
-}
-
-func run() error {
-	app, err := os.OpenFile("app.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		panic(err)
-	}
-	defer app.Close()
-
-	stor, err := os.OpenFile("storage.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		panic(err)
-	}
-	defer stor.Close()
-
-	redis, err := os.OpenFile("redis.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		panic(err)
-	}
-	defer redis.Close()
-
-	applog := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, app), nil))
-	storagelog := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, stor), nil))
-	redislog := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, redis), nil))
-
-	db, err := sql.Open("pgx", db_url)
-	if err != nil {
-		applog.Error("не получилось подключиться к бд", "err", err)
-		return err
-	}
-	if err := db.Ping(); err != nil {
-		applog.Error("не получилось пингануть бд", "err", err)
-		return err
-	}
-	slog.Info("Успешное подключение к бд!")
-	tx := storage.NewUoWFactory(db, storagelog)
-	cache := cache.NewRedis(redis_url, redislog)
-	path := filepath.Join("service.log") // возможно нужно по другому
-	transferService := usecase.NewService(tx, cache, path)
-	handler := handlers.NewHandler(transferService)
-
-	mux := http.NewServeMux()
-	mux.HandleFunc("POST /transactions", handler.Transfer)
-	mux.HandleFunc("GET /transactions/{id}", handler.GetTransaction)
-	slog.Info("сервер запущен на :8080")
-	http.ListenAndServe(":8080", mux)
-
-	return nil
-}
+package main
+
+import (
+	"database/sql"
+	"log"
+	"log/slog"
+	"net/http"
+	"os"
+
+	handlers "processing/internal/delivery/http"
+	"processing/internal/delivery/http/middleware"
+	"processing/internal/infrastructure/cache"
+	"processing/internal/infrastructure/config"
+	"processing/internal/infrastructure/logger"
+	"processing/internal/infrastructure/storage"
+	"processing/internal/usecase"
+
+	_ "github.com/jackc/pgx/v5/stdlib"
+)
+
+func main() {
+	if err := run(); err != nil {
+		os.Exit(1)
+	}
+}
+
+func run() error {
+	cfg, err := config.Load()
+	if err != nil {
+		panic(err)
+	}
+
+	logger, err := logger.NewLogger(cfg.LogLevel, cfg.Environment)
+	if err != nil {
+		panic(err)
+	}
+
+	postgres_url := cfg.Postgres.PostgresDSN()
+	db, err := sql.Open("pgx", postgres_url)
+	if err != nil {
+		logger.Debug("не получилось подключиться к бд", "err", err)
+		return err
+	}
+	if err := db.Ping(); err != nil {
+		logger.Debug("не получилось пингануть бд", "err", err)
+		return err
+	}
+	slog.Info("Успешное подключение к бд!")
+
+	redis_url := cfg.Redis.RedisDSN()
+	cache := cache.NewRedis(cache.NewRedisOptions{
+		Addr:          redis_url,
+		RateLimitMin:  cfg.Redis.RateLimitMin,
+		RateLimitHour: cfg.Redis.RateLimitHour,
+		RateLimitDay:  cfg.Redis.RateLimitDay,
+	})
+	//kafka
+	////
+	////
+
+	tx := storage.NewUoWFactory(db)
+	transactionService := usecase.NewTransactionsService(tx, cache, logger)
+	accountsService := usecase.NewAccountService(tx, cache, logger)
+	authService := usecase.NewAuthService(tx, cache, logger)
+
+	handler := handlers.NewHandler(transactionService, accountsService, authService, logger)
+
+	router := http.NewServeMux()
+
+	router.HandleFunc("POST /auth/register", handler.Register)
+	router.HandleFunc("POST /auth/login", handler.Login)
+	router.HandleFunc("POST /auth/refresh", handler.Refresh)
+
+	router.Handle("POST /auth/logout", middleware.AuthMiddleware(http.HandlerFunc(handler.Logout)))
+	router.Handle("POST /auth/logout-all", middleware.AuthMiddleware(http.HandlerFunc(handler.LogoutAll)))
+	router.Handle("GET /accounts/{id}", middleware.AuthMiddleware(http.HandlerFunc(handler.GetAccount)))
+	router.Handle("GET /accounts/{id}/transactions", middleware.AuthMiddleware(http.HandlerFunc(handler.AccountTransactions)))
+	router.Handle("POST /transactions", middleware.AuthMiddleware(http.HandlerFunc(handler.Transfer)))
+	router.Handle("GET /transactions/{id}", middleware.AuthMiddleware(http.HandlerFunc(handler.GetTransaction)))
+
+	log.Println("сервер запущен на :8080!")
+	http.ListenAndServe(":8080", router)
+
+	return nil
+}
diff --git a/coverage b/coverage
new file mode 100644
index 0000000..5f0393b
--- /dev/null
+++ b/coverage
@@ -0,0 +1,749 @@
+mode: set
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+processing/internal/usecase/auth.go:188.2,188.122 1 0
+processing/internal/usecase/auth.go:188.122,191.3 2 0
+processing/internal/usecase/auth.go:193.2,193.37 1 0
+processing/internal/usecase/auth.go:193.37,196.3 2 0
+processing/internal/usecase/auth.go:198.2,204.8 2 0
+processing/internal/usecase/auth.go:208.90,209.57 1 0
+processing/internal/usecase/auth.go:209.57,211.3 1 0
+processing/internal/usecase/auth.go:213.2,214.16 2 0
+processing/internal/usecase/auth.go:214.16,217.3 2 0
+processing/internal/usecase/auth.go:219.2,220.16 2 0
+processing/internal/usecase/auth.go:220.16,223.3 2 0
+processing/internal/usecase/auth.go:224.2,226.72 2 0
+processing/internal/usecase/auth.go:226.72,227.53 1 0
+processing/internal/usecase/auth.go:227.53,230.4 2 0
+processing/internal/usecase/auth.go:231.3,232.13 2 0
+processing/internal/usecase/auth.go:235.2,235.37 1 0
+processing/internal/usecase/auth.go:235.37,238.3 2 0
+processing/internal/usecase/auth.go:240.2,241.12 2 0
+processing/internal/usecase/auth.go:245.79,247.16 2 0
+processing/internal/usecase/auth.go:247.16,250.3 2 0
+processing/internal/usecase/auth.go:251.2,253.70 2 0
+processing/internal/usecase/auth.go:253.70,256.3 2 0
+processing/internal/usecase/auth.go:258.2,258.37 1 0
+processing/internal/usecase/auth.go:258.37,261.3 2 0
+processing/internal/usecase/auth.go:263.2,264.12 2 0
+processing/internal/usecase/transactions.go:20.108,27.2 2 0
+processing/internal/usecase/transactions.go:37.19,38.73 1 0
+processing/internal/usecase/transactions.go:38.73,41.3 2 0
+processing/internal/usecase/transactions.go:43.2,43.74 1 0
+processing/internal/usecase/transactions.go:43.74,46.3 2 0
+processing/internal/usecase/transactions.go:48.2,49.16 2 0
+processing/internal/usecase/transactions.go:49.16,52.3 2 0
+processing/internal/usecase/transactions.go:54.2,57.16 3 0
+processing/internal/usecase/transactions.go:57.16,60.3 2 0
+processing/internal/usecase/transactions.go:61.2,62.16 2 0
+processing/internal/usecase/transactions.go:62.16,65.3 2 0
+processing/internal/usecase/transactions.go:67.2,67.30 1 0
+processing/internal/usecase/transactions.go:67.30,70.3 2 0
+processing/internal/usecase/transactions.go:72.2,72.26 1 0
+processing/internal/usecase/transactions.go:72.26,75.3 2 0
+processing/internal/usecase/transactions.go:77.2,77.67 1 0
+processing/internal/usecase/transactions.go:77.67,80.3 2 0
+processing/internal/usecase/transactions.go:82.2,82.69 1 0
+processing/internal/usecase/transactions.go:82.69,85.3 2 0
+processing/internal/usecase/transactions.go:87.2,88.16 2 0
+processing/internal/usecase/transactions.go:88.16,91.3 2 0
+processing/internal/usecase/transactions.go:93.2,93.64 1 0
+processing/internal/usecase/transactions.go:93.64,96.3 2 0
+processing/internal/usecase/transactions.go:98.2,98.89 1 0
+processing/internal/usecase/transactions.go:98.89,101.3 2 0
+processing/internal/usecase/transactions.go:103.2,103.37 1 0
+processing/internal/usecase/transactions.go:103.37,106.3 2 0
+processing/internal/usecase/transactions.go:108.2,109.28 2 0
+processing/internal/usecase/transactions.go:118.31,119.70 1 0
+processing/internal/usecase/transactions.go:119.70,122.3 2 0
+processing/internal/usecase/transactions.go:124.2,125.16 2 0
+processing/internal/usecase/transactions.go:125.16,128.3 2 0
+processing/internal/usecase/transactions.go:129.2,132.16 3 0
+processing/internal/usecase/transactions.go:132.16,135.3 2 0
+processing/internal/usecase/transactions.go:137.2,137.74 1 0
+processing/internal/usecase/transactions.go:137.74,140.3 2 0
+processing/internal/usecase/transactions.go:142.2,142.37 1 0
+processing/internal/usecase/transactions.go:142.37,145.3 2 0
+processing/internal/usecase/transactions.go:147.2,147.25 1 0
+processing/internal/usecase/transactions.go:155.33,156.70 1 0
+processing/internal/usecase/transactions.go:156.70,159.3 2 0
+processing/internal/usecase/transactions.go:161.2,162.16 2 0
+processing/internal/usecase/transactions.go:162.16,165.3 2 0
+processing/internal/usecase/transactions.go:166.2,169.16 3 0
+processing/internal/usecase/transactions.go:169.16,172.3 2 0
+processing/internal/usecase/transactions.go:174.2,174.37 1 0
+processing/internal/usecase/transactions.go:174.37,177.3 2 0
+processing/internal/usecase/transactions.go:179.2,180.26 2 0
+processing/internal/domain/account.go:20.73,22.16 2 0
+processing/internal/domain/account.go:22.16,24.3 1 0
+processing/internal/domain/account.go:25.2,25.60 1 0
+processing/internal/domain/transactions.go:27.111,29.16 2 0
+processing/internal/domain/transactions.go:29.16,31.3 1 0
+processing/internal/domain/transactions.go:32.2,37.8 1 0
diff --git a/docker-compose.yml b/docker-compose.yml
index be32ae3..2fabcea 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -1,31 +1,33 @@
-services:
-  postgres:
-    image: postgres:16
-    container_name: postgres_bd
-    environment:
-      POSTGRES_DB: postgres_bd
-      POSTGRES_USER: admin
-      POSTGRES_PASSWORD: secret
-    ports:
-      - "5432:5432"
-    volumes:
-      - postgres_data:/var/lib/postgresql/data
-
-  redis:
-    image: redis:latest
-    ports:
-      - "6379:6379"
-    volumes:
-      - redis_data:/data
-    
-  kafka:
-    image: apache/kafka:latest
-    ports:
-      - "9092:9092"
-    volumes:
-      - kafka_data:/var/lib/kafka/data
-
-volumes:
-  postgres_data:
-  redis_data:
-  kafka_data:
+services:
+  postgres:
+    image: postgres:16
+    container_name: postgres_bd
+    environment:
+      POSTGRES_DB: ${PG_DB}
+      POSTGRES_USER: ${PG_USER}
+      POSTGRES_PASSWORD: ${PG_PASSWORD}
+    ports:
+      - "5432:5432"
+    volumes:
+      - postgres_data:/var/lib/postgresql/data
+
+  redis:
+    image: redis:latest
+    container_name: redis_bd
+    command: redis-server --user ${REDIS_USER} on >${REDIS_PASSWORD} ~* +@all
+    ports:
+      - "6379:6379"
+    volumes:
+      - redis_data:/data
+    
+  kafka:
+    image: apache/kafka:latest
+    ports:
+      - "9092:9092"
+    volumes:
+      - kafka_data:/var/lib/kafka/data
+
+volumes:
+  postgres_data:
+  redis_data:
+  kafka_data:
diff --git a/e2e/accounts_test.go b/e2e/accounts_test.go
new file mode 100644
index 0000000..894ff64
--- /dev/null
+++ b/e2e/accounts_test.go
@@ -0,0 +1,67 @@
+package e2e
+
+import (
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetAccount(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	user := createTestUser(t, ts, "getaccount@example.com", "password123", "AccountUser")
+
+	t.Run("получение своего аккаунта", func(t *testing.T) {
+		url := fmt.Sprintf("%s/accounts/%s", ts.Server.URL, user.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+	})
+
+	t.Run("получение чужого аккаунта", func(t *testing.T) {
+		otherUser := createTestUser(t, ts, "other@example.com", "password123", "OtherUser")
+
+		url := fmt.Sprintf("%s/accounts/%s", ts.Server.URL, otherUser.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user.AccessToken) // токен user, запрашиваем otherUser
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+
+	t.Run("получение несуществующего аккаунта", func(t *testing.T) {
+		fakeID := uuid.New().String()
+		url := fmt.Sprintf("%s/accounts/%s", ts.Server.URL, fakeID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+
+	t.Run("получение аккаунта без токена", func(t *testing.T) {
+		url := fmt.Sprintf("%s/accounts/%s", ts.Server.URL, user.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+	})
+}
diff --git a/e2e/auth_test.go b/e2e/auth_test.go
new file mode 100644
index 0000000..2314e6f
--- /dev/null
+++ b/e2e/auth_test.go
@@ -0,0 +1,312 @@
+package e2e
+
+import (
+	"bytes"
+	"encoding/json"
+	"net/http"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestAuthFlow(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	t.Run("успешная регистрация и логин", func(t *testing.T) {
+		registerPayload := map[string]string{
+			"email":    "test@example.com",
+			"password": "password123",
+			"username": "TestUser",
+		}
+		body, _ := json.Marshal(registerPayload)
+
+		resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusCreated, resp.StatusCode)
+
+		var registerResp struct {
+			Account struct {
+				ID       string `json:"id"`
+				Email    string `json:"email"`
+				Username string `json:"username"`
+			} `json:"account"`
+			Tokens struct {
+				AccessToken  string `json:"access_token"`
+				RefreshToken string `json:"refresh_token"`
+			} `json:"tokens"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&registerResp)
+		require.NoError(t, err)
+
+		assert.NotEmpty(t, registerResp.Account.ID)
+		assert.Equal(t, "test@example.com", registerResp.Account.Email)
+		assert.Equal(t, "TestUser", registerResp.Account.Username)
+		assert.NotEmpty(t, registerResp.Tokens.AccessToken)
+		assert.NotEmpty(t, registerResp.Tokens.RefreshToken)
+
+		var count int
+		err = ts.DB.QueryRow("SELECT COUNT(*) FROM accounts WHERE email = $1", "test@example.com").Scan(&count)
+		require.NoError(t, err)
+		assert.Equal(t, 1, count)
+	})
+
+	t.Run("дублирующая регистрация", func(t *testing.T) {
+		email := "duplicate@example.com"
+
+		registerPayload := map[string]string{
+			"email":    email,
+			"password": "password123",
+			"username": "User1",
+		}
+		body, _ := json.Marshal(registerPayload)
+		resp1, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		resp1.Body.Close()
+		assert.Equal(t, http.StatusCreated, resp1.StatusCode)
+
+		resp2, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp2.Body.Close()
+
+		assert.NotEqual(t, http.StatusCreated, resp2.StatusCode)
+	})
+
+	t.Run("логин с корректными данными", func(t *testing.T) {
+		email := "login@example.com"
+		password := "mypassword"
+
+		registerPayload := map[string]string{
+			"email":    email,
+			"password": password,
+			"username": "LoginUser",
+		}
+		body, _ := json.Marshal(registerPayload)
+		resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		resp.Body.Close()
+
+		loginPayload := map[string]string{
+			"email":    email,
+			"password": password,
+		}
+		body, _ = json.Marshal(loginPayload)
+		resp, err = http.Post(ts.Server.URL+"/auth/login", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+		var loginResp struct {
+			AccessToken  string `json:"access_token"`
+			RefreshToken string `json:"refresh_token"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&loginResp)
+		require.NoError(t, err)
+
+		assert.NotEmpty(t, loginResp.AccessToken)
+		assert.NotEmpty(t, loginResp.RefreshToken)
+	})
+
+	t.Run("логин с неверным паролем", func(t *testing.T) {
+		email := "wrongpass@example.com"
+
+		registerPayload := map[string]string{
+			"email":    email,
+			"password": "correctpassword",
+			"username": "WrongPassUser",
+		}
+		body, _ := json.Marshal(registerPayload)
+		resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		resp.Body.Close()
+
+		loginPayload := map[string]string{
+			"email":    email,
+			"password": "wrongpassword",
+		}
+		body, _ = json.Marshal(loginPayload)
+		resp, err = http.Post(ts.Server.URL+"/auth/login", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+
+	t.Run("refresh token", func(t *testing.T) {
+		email := "refresh@example.com"
+		registerPayload := map[string]string{
+			"email":    email,
+			"password": "password123",
+			"username": "RefreshUser",
+		}
+		body, _ := json.Marshal(registerPayload)
+		resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+
+		var registerResp struct {
+			Tokens struct {
+				RefreshToken string `json:"refresh_token"`
+			} `json:"tokens"`
+		}
+		json.NewDecoder(resp.Body).Decode(&registerResp)
+		resp.Body.Close()
+
+		refreshToken := registerResp.Tokens.RefreshToken
+
+		refreshPayload := map[string]string{
+			"refresh_token": refreshToken,
+		}
+		body, _ = json.Marshal(refreshPayload)
+		resp, err = http.Post(ts.Server.URL+"/auth/refresh", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+		var refreshResp struct {
+			AccessToken  string `json:"access_token"`
+			RefreshToken string `json:"refresh_token"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&refreshResp)
+		require.NoError(t, err)
+
+		assert.NotEmpty(t, refreshResp.AccessToken)
+		assert.NotEmpty(t, refreshResp.RefreshToken)
+	})
+
+	t.Run("logout", func(t *testing.T) {
+		email := "logout@example.com"
+		registerPayload := map[string]string{
+			"email":    email,
+			"password": "password123",
+			"username": "LogoutUser",
+		}
+		body, _ := json.Marshal(registerPayload)
+		resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+
+		var registerResp struct {
+			Tokens struct {
+				AccessToken  string `json:"access_token"`
+				RefreshToken string `json:"refresh_token"`
+			} `json:"tokens"`
+		}
+		json.NewDecoder(resp.Body).Decode(&registerResp)
+		resp.Body.Close()
+
+		logoutPayload := map[string]string{
+			"refresh_token": registerResp.Tokens.RefreshToken,
+		}
+		body, _ = json.Marshal(logoutPayload)
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/auth/logout", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+registerResp.Tokens.AccessToken)
+
+		resp, err = http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+		refreshPayload := map[string]string{
+			"refresh_token": registerResp.Tokens.RefreshToken,
+		}
+		body, _ = json.Marshal(refreshPayload)
+		resp, err = http.Post(ts.Server.URL+"/auth/refresh", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+}
+
+func TestLogoutAll(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	email := "logoutall@example.com"
+	registerPayload := map[string]string{
+		"email":    email,
+		"password": "password123",
+		"username": "LogoutAllUser",
+	}
+	body, _ := json.Marshal(registerPayload)
+	resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+	require.NoError(t, err)
+
+	var registerResp struct {
+		Tokens struct {
+			AccessToken  string `json:"access_token"`
+			RefreshToken string `json:"refresh_token"`
+		} `json:"tokens"`
+	}
+	json.NewDecoder(resp.Body).Decode(&registerResp)
+	resp.Body.Close()
+
+	firstRefreshToken := registerResp.Tokens.RefreshToken
+
+	refreshPayload := map[string]string{
+		"refresh_token": firstRefreshToken,
+	}
+	body, _ = json.Marshal(refreshPayload)
+	resp, err = http.Post(ts.Server.URL+"/auth/refresh", "application/json", bytes.NewBuffer(body))
+	require.NoError(t, err)
+
+	var refreshResp struct {
+		RefreshToken string `json:"refresh_token"`
+	}
+	json.NewDecoder(resp.Body).Decode(&refreshResp)
+	resp.Body.Close()
+
+	secondRefreshToken := refreshResp.RefreshToken
+
+	req, _ := http.NewRequest("POST", ts.Server.URL+"/auth/logout-all", nil)
+	req.Header.Set("Authorization", "Bearer "+registerResp.Tokens.AccessToken)
+
+	resp, err = http.DefaultClient.Do(req)
+	require.NoError(t, err)
+	resp.Body.Close()
+	assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+	for _, token := range []string{firstRefreshToken, secondRefreshToken} {
+		refreshPayload := map[string]string{
+			"refresh_token": token,
+		}
+		body, _ = json.Marshal(refreshPayload)
+		resp, err = http.Post(ts.Server.URL+"/auth/refresh", "application/json", bytes.NewBuffer(body))
+		require.NoError(t, err)
+		resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode, "токен %s должен быть невалидным", token)
+	}
+}
+
+func TestInvalidToken(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	accountID := uuid.New().String()
+	req, _ := http.NewRequest("GET", ts.Server.URL+"/accounts/"+accountID, nil)
+	req.Header.Set("Authorization", "Bearer invalid_token_here")
+
+	resp, err := http.DefaultClient.Do(req)
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+}
+
+func TestMissingToken(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	accountID := uuid.New().String()
+	req, _ := http.NewRequest("GET", ts.Server.URL+"/accounts/"+accountID, nil)
+
+	resp, err := http.DefaultClient.Do(req)
+	require.NoError(t, err)
+	defer resp.Body.Close()
+
+	assert.Equal(t, http.StatusUnauthorized, resp.StatusCode)
+}
diff --git a/e2e/setup_test.go b/e2e/setup_test.go
new file mode 100644
index 0000000..a2eb98f
--- /dev/null
+++ b/e2e/setup_test.go
@@ -0,0 +1,214 @@
+package e2e
+
+import (
+	"bytes"
+	"context"
+	"database/sql"
+	"encoding/json"
+	"fmt"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"path/filepath"
+	"testing"
+	"time"
+
+	handlers "processing/internal/delivery/http"
+	"processing/internal/delivery/http/middleware"
+	"processing/internal/infrastructure/cache"
+	"processing/internal/infrastructure/logger"
+	"processing/internal/infrastructure/storage"
+	"processing/internal/usecase"
+
+	_ "github.com/jackc/pgx/v5/stdlib"
+	"github.com/pressly/goose/v3"
+	"github.com/testcontainers/testcontainers-go"
+	"github.com/testcontainers/testcontainers-go/modules/postgres"
+	"github.com/testcontainers/testcontainers-go/modules/redis"
+	"github.com/testcontainers/testcontainers-go/wait"
+)
+
+type TestServer struct {
+	Server   *httptest.Server
+	DB       *sql.DB
+	Logger   *slog.Logger
+	Postgres *postgres.PostgresContainer
+	Redis    *redis.RedisContainer
+}
+
+func SetupTestServer(t *testing.T) *TestServer {
+	ctx := context.Background()
+
+	t.Setenv("accessSecretKey", "test-access-secret-key-for-testing-only")
+	t.Setenv("refreshSecretKey", "test-refresh-secret-key-for-testing-only")
+
+	postgresContainer, err := postgres.Run(ctx,
+		"postgres:16-alpine",
+		postgres.WithDatabase("testdb"),
+		postgres.WithUsername("testuser"),
+		postgres.WithPassword("testpass"),
+		testcontainers.WithWaitStrategy(
+			wait.ForLog("database system is ready to accept connections").
+				WithOccurrence(2).
+				WithStartupTimeout(30*time.Second)),
+	)
+	if err != nil {
+		t.Fatalf("не удалось запустить postgres контейнер: %v", err)
+	}
+
+	connStr, err := postgresContainer.ConnectionString(ctx, "sslmode=disable")
+	if err != nil {
+		t.Fatalf("не удалось получить connection string: %v", err)
+	}
+
+	db, err := sql.Open("pgx", connStr)
+	if err != nil {
+		t.Fatalf("не удалось подключиться к БД: %v", err)
+	}
+
+	if err := applyMigrations(db); err != nil {
+		t.Fatalf("не удалось применить миграции: %v", err)
+	}
+
+	redisContainer, err := redis.Run(ctx,
+		"redis:7-alpine",
+		redis.WithSnapshotting(10, 1),
+		redis.WithLogLevel(redis.LogLevelVerbose),
+	)
+	if err != nil {
+		t.Fatalf("не удалось запустить redis контейнер: %v", err)
+	}
+
+	redisAddr, err := redisContainer.ConnectionString(ctx)
+	if err != nil {
+		t.Fatalf("не удалось получить redis connection string: %v", err)
+	}
+
+	if len(redisAddr) > 8 && redisAddr[:8] == "redis://" {
+		redisAddr = redisAddr[8:]
+	}
+
+	testCache := cache.NewRedis(cache.NewRedisOptions{
+		Addr:          redisAddr,
+		RateLimitMin:  10000,
+		RateLimitHour: 100000,
+		RateLimitDay:  1000000,
+	})
+
+	testLogger, err := logger.NewLogger("debug", "test")
+	if err != nil {
+		t.Fatalf("не удалось создать логгер: %v", err)
+	}
+
+	tx := storage.NewUoWFactory(db)
+	transactionService := usecase.NewTransactionsService(tx, testCache, testLogger)
+	accountsService := usecase.NewAccountService(tx, testCache, testLogger)
+	authService := usecase.NewAuthService(tx, testCache, testLogger)
+
+	handler := handlers.NewHandler(transactionService, accountsService, authService, testLogger)
+
+	router := http.NewServeMux()
+
+	router.HandleFunc("POST /auth/register", handler.Register)
+	router.HandleFunc("POST /auth/login", handler.Login)
+	router.HandleFunc("POST /auth/refresh", handler.Refresh)
+
+	router.Handle("POST /auth/logout", middleware.AuthMiddleware(http.HandlerFunc(handler.Logout)))
+	router.Handle("POST /auth/logout-all", middleware.AuthMiddleware(http.HandlerFunc(handler.LogoutAll)))
+	router.Handle("GET /accounts/{id}", middleware.AuthMiddleware(http.HandlerFunc(handler.GetAccount)))
+	router.Handle("GET /accounts/{id}/transactions", middleware.AuthMiddleware(http.HandlerFunc(handler.AccountTransactions)))
+	router.Handle("POST /transactions", middleware.AuthMiddleware(http.HandlerFunc(handler.Transfer)))
+	router.Handle("GET /transactions/{id}", middleware.AuthMiddleware(http.HandlerFunc(handler.GetTransaction)))
+
+	server := httptest.NewServer(router)
+
+	t.Cleanup(func() {
+		server.Close()
+		db.Close()
+		if err := postgresContainer.Terminate(ctx); err != nil {
+			t.Logf("не удалось остановить postgres контейнер: %v", err)
+		}
+		if err := redisContainer.Terminate(ctx); err != nil {
+			t.Logf("не удалось остановить redis контейнер: %v", err)
+		}
+	})
+
+	return &TestServer{
+		Server:   server,
+		DB:       db,
+		Logger:   testLogger,
+		Postgres: postgresContainer,
+		Redis:    redisContainer,
+	}
+}
+
+func applyMigrations(db *sql.DB) error {
+	if err := goose.SetDialect("postgres"); err != nil {
+		return fmt.Errorf("не удалось установить диалект postgres: %w", err)
+	}
+
+	migrationDir := filepath.Join("..", "migrations")
+
+	if err := goose.Up(db, migrationDir); err != nil {
+		return fmt.Errorf("не удалось применить миграции: %w", err)
+	}
+
+	return nil
+}
+
+type TestUser struct {
+	AccountID    string
+	Email        string
+	Username     string
+	AccessToken  string
+	RefreshToken string
+}
+
+func createTestUser(t *testing.T, ts *TestServer, email, password, username string) *TestUser {
+	t.Helper()
+
+	registerPayload := map[string]string{
+		"email":    email,
+		"password": password,
+		"username": username,
+	}
+
+	body, err := json.Marshal(registerPayload)
+	if err != nil {
+		t.Fatalf("не удалось сериализовать payload: %v", err)
+	}
+
+	resp, err := http.Post(ts.Server.URL+"/auth/register", "application/json", bytes.NewBuffer(body))
+	if err != nil {
+		t.Fatalf("не удалось выполнить запрос регистрации: %v", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusCreated {
+		t.Fatalf("регистрация не удалась, статус: %d", resp.StatusCode)
+	}
+
+	var registerResp struct {
+		Account struct {
+			ID       string `json:"id"`
+			Email    string `json:"email"`
+			Username string `json:"username"`
+		} `json:"account"`
+		Tokens struct {
+			AccessToken  string `json:"access_token"`
+			RefreshToken string `json:"refresh_token"`
+		} `json:"tokens"`
+	}
+
+	if err := json.NewDecoder(resp.Body).Decode(&registerResp); err != nil {
+		t.Fatalf("не удалось декодировать ответ: %v", err)
+	}
+
+	return &TestUser{
+		AccountID:    registerResp.Account.ID,
+		Email:        registerResp.Account.Email,
+		Username:     registerResp.Account.Username,
+		AccessToken:  registerResp.Tokens.AccessToken,
+		RefreshToken: registerResp.Tokens.RefreshToken,
+	}
+}
diff --git a/e2e/transactions_test.go b/e2e/transactions_test.go
new file mode 100644
index 0000000..08b6b62
--- /dev/null
+++ b/e2e/transactions_test.go
@@ -0,0 +1,316 @@
+package e2e
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTransactionFlow(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	// Создаем двух пользователей
+	sender := createTestUser(t, ts, "sender@example.com", "password123", "Sender")
+	receiver := createTestUser(t, ts, "receiver@example.com", "password123", "Receiver")
+
+	// Добавляем баланс отправителю напрямую в БД
+	_, err := ts.DB.Exec("UPDATE accounts SET balance = 1000 WHERE id = $1", sender.AccountID)
+	require.NoError(t, err)
+
+	t.Run("успешный перевод", func(t *testing.T) {
+		transferPayload := map[string]interface{}{
+			"receiver_id": receiver.AccountID,
+			"amount":      "100.50",
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusCreated, resp.StatusCode)
+
+		var transactionResp struct {
+			TransactionID string `json:"transaction_id"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&transactionResp)
+		require.NoError(t, err)
+		assert.NotEmpty(t, transactionResp.TransactionID)
+
+		// Проверяем балансы в БД
+		var senderBalance, receiverBalance float64
+		err = ts.DB.QueryRow("SELECT balance FROM accounts WHERE id = $1", sender.AccountID).Scan(&senderBalance)
+		require.NoError(t, err)
+		assert.InDelta(t, 899.50, senderBalance, 0.01)
+
+		err = ts.DB.QueryRow("SELECT balance FROM accounts WHERE id = $1", receiver.AccountID).Scan(&receiverBalance)
+		require.NoError(t, err)
+		assert.InDelta(t, 100.50, receiverBalance, 0.01)
+
+		// Проверяем, что транзакция записалась в БД
+		var status string
+		err = ts.DB.QueryRow("SELECT status FROM transactions WHERE id = $1", transactionResp.TransactionID).Scan(&status)
+		require.NoError(t, err)
+		assert.Equal(t, "completed", status)
+	})
+
+	t.Run("перевод с недостаточным балансом", func(t *testing.T) {
+		transferPayload := map[string]interface{}{
+			"receiver_id": receiver.AccountID,
+			"amount":      "10000.00", // Больше, чем есть на счету
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusCreated, resp.StatusCode)
+	})
+
+	t.Run("перевод самому себе", func(t *testing.T) {
+		transferPayload := map[string]interface{}{
+			"receiver_id": sender.AccountID, // Отправитель = получатель
+			"amount":      "50.00",
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusCreated, resp.StatusCode)
+	})
+
+	t.Run("перевод с отрицательной суммой", func(t *testing.T) {
+		transferPayload := map[string]interface{}{
+			"receiver_id": receiver.AccountID,
+			"amount":      "-10.00",
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusCreated, resp.StatusCode)
+	})
+
+	t.Run("перевод несуществующему получателю", func(t *testing.T) {
+		fakeReceiverID := uuid.New().String()
+		transferPayload := map[string]interface{}{
+			"receiver_id": fakeReceiverID,
+			"amount":      "10.00",
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusCreated, resp.StatusCode)
+	})
+}
+
+func TestGetTransaction(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	// Создаем пользователей и делаем транзакцию
+	sender := createTestUser(t, ts, "getsender@example.com", "password123", "GetSender")
+	receiver := createTestUser(t, ts, "getreceiver@example.com", "password123", "GetReceiver")
+
+	// Добавляем баланс
+	_, err := ts.DB.Exec("UPDATE accounts SET balance = 500 WHERE id = $1", sender.AccountID)
+	require.NoError(t, err)
+
+	// Создаем транзакцию
+	transferPayload := map[string]interface{}{
+		"receiver_id": receiver.AccountID,
+		"amount":      "50.00",
+	}
+	body, _ := json.Marshal(transferPayload)
+
+	req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+	resp, err := http.DefaultClient.Do(req)
+	require.NoError(t, err)
+
+	var transactionResp struct {
+		TransactionID string `json:"transaction_id"`
+	}
+	json.NewDecoder(resp.Body).Decode(&transactionResp)
+	resp.Body.Close()
+
+	transactionID := transactionResp.TransactionID
+
+	t.Run("получение транзакции отправителем", func(t *testing.T) {
+		req, _ := http.NewRequest("GET", ts.Server.URL+"/transactions/"+transactionID, nil)
+		req.Header.Set("Authorization", "Bearer "+sender.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+		var tx struct {
+			Amount     string `json:"amount"`
+			SenderID   string `json:"sender_id"`
+			ReceiverID string `json:"receiver_id"`
+			Status     string `json:"status"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&tx)
+		require.NoError(t, err)
+
+		assert.Equal(t, "50", tx.Amount)
+		assert.Equal(t, sender.AccountID, tx.SenderID)
+		assert.Equal(t, receiver.AccountID, tx.ReceiverID)
+		assert.Equal(t, "completed", tx.Status)
+	})
+
+	t.Run("получение транзакции получателем", func(t *testing.T) {
+		req, _ := http.NewRequest("GET", ts.Server.URL+"/transactions/"+transactionID, nil)
+		req.Header.Set("Authorization", "Bearer "+receiver.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+	})
+
+	t.Run("получение чужой транзакции", func(t *testing.T) {
+		stranger := createTestUser(t, ts, "stranger@example.com", "password123", "Stranger")
+
+		req, _ := http.NewRequest("GET", ts.Server.URL+"/transactions/"+transactionID, nil)
+		req.Header.Set("Authorization", "Bearer "+stranger.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+}
+
+func TestAccountTransactionHistory(t *testing.T) {
+	ts := SetupTestServer(t)
+
+	user1 := createTestUser(t, ts, "history1@example.com", "password123", "HistoryUser1")
+	user2 := createTestUser(t, ts, "history2@example.com", "password123", "HistoryUser2")
+	user3 := createTestUser(t, ts, "history3@example.com", "password123", "HistoryUser3")
+
+	// Добавляем баланс
+	_, err := ts.DB.Exec("UPDATE accounts SET balance = 1000 WHERE id = $1", user1.AccountID)
+	require.NoError(t, err)
+
+	// Создаем несколько транзакций
+	for i := 0; i < 5; i++ {
+		receiver := user2.AccountID
+		if i%2 == 0 {
+			receiver = user3.AccountID
+		}
+
+		transferPayload := map[string]interface{}{
+			"receiver_id": receiver,
+			"amount":      fmt.Sprintf("%d.00", 10*(i+1)),
+		}
+		body, _ := json.Marshal(transferPayload)
+
+		req, _ := http.NewRequest("POST", ts.Server.URL+"/transactions", bytes.NewBuffer(body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Authorization", "Bearer "+user1.AccessToken)
+		req.Header.Set("Idempotency-Key", fmt.Sprintf("test-transaction-%d", i)) // уникальный ключ для каждого запроса
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		resp.Body.Close()
+	}
+
+	t.Run("получение истории транзакций", func(t *testing.T) {
+		url := fmt.Sprintf("%s/accounts/%s/transactions?limit=10&offset=0", ts.Server.URL, user1.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user1.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.Equal(t, http.StatusOK, resp.StatusCode)
+
+		var historyResp struct {
+			Total        int `json:"total"`
+			Transactions []struct {
+				Amount     string `json:"amount"`
+				SenderID   string `json:"sender_id"`
+				ReceiverID string `json:"receiver_id"`
+				Status     string `json:"status"`
+			} `json:"transactions"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&historyResp)
+		require.NoError(t, err)
+
+		assert.Equal(t, 5, historyResp.Total)
+		assert.Len(t, historyResp.Transactions, 5)
+	})
+
+	t.Run("пагинация истории транзакций", func(t *testing.T) {
+		url := fmt.Sprintf("%s/accounts/%s/transactions?limit=2&offset=0", ts.Server.URL, user1.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user1.AccessToken)
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		var historyResp struct {
+			Total        int           `json:"total"`
+			Transactions []interface{} `json:"transactions"`
+		}
+		err = json.NewDecoder(resp.Body).Decode(&historyResp)
+		require.NoError(t, err)
+
+		assert.Equal(t, 5, historyResp.Total)
+		assert.Len(t, historyResp.Transactions, 2)
+	})
+
+	t.Run("получение истории чужого аккаунта", func(t *testing.T) {
+		url := fmt.Sprintf("%s/accounts/%s/transactions?limit=10&offset=0", ts.Server.URL, user2.AccountID)
+		req, _ := http.NewRequest("GET", url, nil)
+		req.Header.Set("Authorization", "Bearer "+user1.AccessToken) // токен user1, но запрашиваем историю user2
+
+		resp, err := http.DefaultClient.Do(req)
+		require.NoError(t, err)
+		defer resp.Body.Close()
+
+		assert.NotEqual(t, http.StatusOK, resp.StatusCode)
+	})
+}
diff --git a/endpoints.png b/endpoints.png
deleted file mode 100644
index eb7ca68..0000000
Binary files a/endpoints.png and /dev/null differ
diff --git a/go.mod b/go.mod
index fb84584..8d68355 100644
--- a/go.mod
+++ b/go.mod
@@ -1,12 +1,26 @@
 module processing
 
-go 1.25.5
+go 1.25.7
+
+require (
+	github.com/alicebob/miniredis/v2 v2.38.0
+	github.com/golang-jwt/jwt/v5 v5.3.1
+	github.com/google/uuid v1.6.0
+	github.com/jackc/pgx/v5 v5.10.0
+	github.com/joho/godotenv v1.5.1
+	github.com/pressly/goose/v3 v3.27.1
+	github.com/redis/go-redis/v9 v9.20.0
+	github.com/stretchr/testify v1.11.1
+	github.com/testcontainers/testcontainers-go v0.43.0
+	github.com/testcontainers/testcontainers-go/modules/postgres v0.43.0
+	github.com/testcontainers/testcontainers-go/modules/redis v0.43.0
+	golang.org/x/crypto v0.53.0
+)
 
 require (
 	dario.cat/mergo v1.0.2 // indirect
 	github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c // indirect
 	github.com/Microsoft/go-winio v0.6.2 // indirect
-	github.com/alicebob/miniredis/v2 v2.38.0 // indirect
 	github.com/cenkalti/backoff/v4 v4.3.0 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/containerd/errdefs v1.0.0 // indirect
@@ -14,29 +28,27 @@ require (
 	github.com/containerd/log v0.1.0 // indirect
 	github.com/containerd/platforms v0.2.1 // indirect
 	github.com/cpuguy83/dockercfg v0.3.2 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
 	github.com/distribution/reference v0.6.0 // indirect
-	github.com/docker/go-connections v0.6.0 // indirect
+	github.com/docker/go-connections v0.7.0 // indirect
 	github.com/docker/go-units v0.5.0 // indirect
 	github.com/ebitengine/purego v0.10.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
-	github.com/go-redis/redis v6.15.9+incompatible // indirect
-	github.com/google/uuid v1.6.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
 	github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 // indirect
-	github.com/jackc/pgx v3.6.2+incompatible // indirect
-	github.com/jackc/pgx/v5 v5.10.0 // indirect
 	github.com/jackc/puddle/v2 v2.2.2 // indirect
 	github.com/klauspost/compress v1.18.5 // indirect
 	github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
 	github.com/magiconair/properties v1.8.10 // indirect
+	github.com/mdelapenya/tlscert v0.2.0 // indirect
+	github.com/mfridman/interpolate v0.0.2 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
 	github.com/moby/go-archive v0.2.0 // indirect
-	github.com/moby/moby/api v1.54.1 // indirect
-	github.com/moby/moby/client v0.4.0 // indirect
+	github.com/moby/moby/api v1.54.2 // indirect
+	github.com/moby/moby/client v0.4.1 // indirect
 	github.com/moby/patternmatcher v0.6.1 // indirect
 	github.com/moby/sys/sequential v0.6.0 // indirect
 	github.com/moby/sys/user v0.4.0 // indirect
@@ -44,32 +56,25 @@ require (
 	github.com/moby/term v0.5.2 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
 	github.com/opencontainers/image-spec v1.1.1 // indirect
-	github.com/pierrec/lz4/v4 v4.1.15 // indirect
-	github.com/pkg/errors v0.9.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/power-devops/perfstat v0.0.0-20240221224432-82ca36839d55 // indirect
-	github.com/pressly/goose v2.7.0+incompatible // indirect
-	github.com/redis/go-redis v6.15.9+incompatible // indirect
-	github.com/redis/go-redis/v9 v9.20.0 // indirect
-	github.com/segmentio/kafka-go v0.4.51 // indirect
-	github.com/shirou/gopsutil/v4 v4.26.3 // indirect
+	github.com/sethvargo/go-retry v0.3.0 // indirect
+	github.com/shirou/gopsutil/v4 v4.26.5 // indirect
 	github.com/sirupsen/logrus v1.9.4 // indirect
-	github.com/stretchr/testify v1.11.1 // indirect
-	github.com/testcontainers/testcontainers-go v0.42.0 // indirect
-	github.com/testcontainers/testcontainers-go/modules/postgres v0.42.0 // indirect
+	github.com/stretchr/objx v0.5.3 // indirect
 	github.com/tklauser/go-sysconf v0.3.16 // indirect
 	github.com/tklauser/numcpus v0.11.0 // indirect
 	github.com/yuin/gopher-lua v1.1.1 // indirect
 	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 // indirect
-	go.opentelemetry.io/otel v1.41.0 // indirect
-	go.opentelemetry.io/otel/metric v1.41.0 // indirect
-	go.opentelemetry.io/otel/trace v1.41.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.68.0 // indirect
+	go.opentelemetry.io/otel v1.43.0 // indirect
+	go.opentelemetry.io/otel/metric v1.43.0 // indirect
+	go.opentelemetry.io/otel/trace v1.43.0 // indirect
 	go.uber.org/atomic v1.11.0 // indirect
-	golang.org/x/crypto v0.52.0 // indirect
-	golang.org/x/sync v0.20.0 // indirect
-	golang.org/x/sys v0.45.0 // indirect
-	golang.org/x/text v0.37.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/sync v0.21.0 // indirect
+	golang.org/x/sys v0.46.0 // indirect
+	golang.org/x/text v0.38.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
diff --git a/go.sum b/go.sum
index c952332..3c8474d 100644
--- a/go.sum
+++ b/go.sum
@@ -1,11 +1,17 @@
 dario.cat/mergo v1.0.2 h1:85+piFYR1tMbRrLcDwR18y4UKJ3aH1Tbzi24VRW1TK8=
 dario.cat/mergo v1.0.2/go.mod h1:E/hbnu0NxMFBjpMIE34DRGLWqDy0g5FuKDhCb31ngxA=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6 h1:He8afgbRMd7mFxO99hRNu+6tazq8nFF9lIwo9JFroBk=
+github.com/AdaLogics/go-fuzz-headers v0.0.0-20240806141605-e8a1dd7889d6/go.mod h1:8o94RPi1/7XTJvwPpRSzSUedZrtlirdB3r9Z20bi2f8=
 github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c h1:udKWzYgxTojEKWjV8V+WSxDXJ4NFATAsZjh8iIbsQIg=
 github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
 github.com/alicebob/miniredis/v2 v2.38.0 h1:nZAzCR+Lj+Vxk4ZXzm2NuKq2O33RXj1XxJ2e2uP9jiw=
 github.com/alicebob/miniredis/v2 v2.38.0/go.mod h1:TcL7YfarKPGDAthEtl5NBeHZfeUQj6OXMm/+iu5cLMM=
+github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs=
+github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c=
+github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA=
+github.com/bsm/gomega v1.27.10/go.mod h1:JyEr/xRbxbtgWNi8tIEVPUYZ5Dzef52k01W3YH0H+O0=
 github.com/cenkalti/backoff/v4 v4.3.0 h1:MyRJ/UdXutAwSAT+s3wNd7MfTIcy71VQueUuFK343L8=
 github.com/cenkalti/backoff/v4 v4.3.0/go.mod h1:Y3VNntkOUPxTVeUxJ/G5vcM//AlwfmyYozVcomhLiZE=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
@@ -20,15 +26,19 @@ github.com/containerd/platforms v0.2.1 h1:zvwtM3rz2YHPQsF2CHYM8+KtB5dvhISiXh5ZpS
 github.com/containerd/platforms v0.2.1/go.mod h1:XHCb+2/hzowdiut9rkudds9bE5yJ7npe7dG/wG+uFPw=
 github.com/cpuguy83/dockercfg v0.3.2 h1:DlJTyZGBDlXqUZ2Dk2Q3xHs/FtnooJJVaad2S9GKorA=
 github.com/cpuguy83/dockercfg v0.3.2/go.mod h1:sugsbF4//dDlL/i+S+rtpIWp+5h0BHJHfjj5/jFyUJc=
+github.com/creack/pty v1.1.24 h1:bJrF4RRfyJnbTJqzRLHzcGaZK1NeM5kTC9jGgovnR1s=
+github.com/creack/pty v1.1.24/go.mod h1:08sCNb52WyoAwi2QDyzUCTgcvVFhUzewun7wtTfvcwE=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
-github.com/docker/go-connections v0.6.0 h1:LlMG9azAe1TqfR7sO+NJttz1gy6KO7VJBh+pMmjSD94=
-github.com/docker/go-connections v0.6.0/go.mod h1:AahvXYshr6JgfUJGdDCs2b5EZG/vmaMAntpSFH5BFKE=
+github.com/docker/go-connections v0.7.0 h1:6SsRfJddP22WMrCkj19x9WKjEDTB+ahsdiGYf0mN39c=
+github.com/docker/go-connections v0.7.0/go.mod h1:no1qkHdjq7kLMGUXYAduOhYPSJxxvgWBh7ogVvptn3Q=
 github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
 github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
+github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/ebitengine/purego v0.10.0 h1:QIw4xfpWT6GWTzaW5XEKy3HXoqrJGx1ijYHzTF0/ISU=
 github.com/ebitengine/purego v0.10.0/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
@@ -40,37 +50,51 @@ github.com/go-logr/stdr v1.2.2 h1:hSWxHoqTgW2S2qGc0LTAI563KZ5YKYRhT3MFKZMbjag=
 github.com/go-logr/stdr v1.2.2/go.mod h1:mMo/vtBO5dYbehREoey6XUKy/eSumjCCveDpRre4VKE=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
-github.com/go-redis/redis v6.15.9+incompatible h1:K0pv1D7EQUjfyoMql+r/jZqCLizCGKFlFgcHWWmHQjg=
-github.com/go-redis/redis v6.15.9+incompatible/go.mod h1:NAIEuMOZ/fxfXJIrKDQDz8wamY7mA7PouImQ2Jvg6kA=
+github.com/golang-jwt/jwt/v5 v5.3.1 h1:kYf81DTWFe7t+1VvL7eS+jKFVWaUnK9cB1qbwn63YCY=
+github.com/golang-jwt/jwt/v5 v5.3.1/go.mod h1:fxCRLWMO43lRc8nhHWY6LGqRcf+1gQWArsqaEUEa5bE=
 github.com/google/go-cmp v0.5.6/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
+github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/jackc/pgpassfile v1.0.0 h1:/6Hmqy13Ss2zCq62VdNG8tM1wchn8zjSGOBJ6icpsIM=
 github.com/jackc/pgpassfile v1.0.0/go.mod h1:CEx0iS5ambNFdcRtxPj5JhEz+xB6uRky5eyVu/W2HEg=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761 h1:iCEnooe7UlwOQYpKFhBabPMi4aNAfoODPEFNiAnClxo=
 github.com/jackc/pgservicefile v0.0.0-20240606120523-5a60cdf6a761/go.mod h1:5TJZWKEWniPve33vlWYSoGYefn3gLQRzjfDlhSJ9ZKM=
-github.com/jackc/pgx v3.6.2+incompatible h1:2zP5OD7kiyR3xzRYMhOcXVvkDZsImVXfj+yIyTQf3/o=
-github.com/jackc/pgx v3.6.2+incompatible/go.mod h1:0ZGrqGqkRlliWnWB4zKnWtjbSWbGkVEFm4TeybAXq+I=
 github.com/jackc/pgx/v5 v5.10.0 h1:VhSvgU2jSli8o3AqIEOTJr7rZwAEUVo4E4XhR94Zfr0=
 github.com/jackc/pgx/v5 v5.10.0/go.mod h1:mal1tBGAFfLHvZzaYh77YS/eC6IX9OWbRV1QIIM0Jn4=
 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/klauspost/compress v1.15.9 h1:wKRjX6JRtDdrE9qwa4b/Cip7ACOshUI4smpCQanqjSY=
-github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.18.5 h1:/h1gH5Ce+VWNLSWqPzOVn6XBO+vJbCNGvjoaGBFW2IE=
 github.com/klauspost/compress v1.18.5/go.mod h1:cwPg85FWrGar70rWktvGQj8/hthj3wpl0PGDogxkrSQ=
+github.com/klauspost/cpuid/v2 v2.2.10 h1:tBs3QSyvjDyFTq3uoc/9xFpCuOsJQFNPiAhYdw2skhE=
+github.com/klauspost/cpuid/v2 v2.2.10/go.mod h1:hqwkgyIinND0mEev00jJYCxPNVRVXFQeu1XKlok6oO0=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
+github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
+github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
+github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 h1:6E+4a0GO5zZEnZ81pIr0yLvtUWk2if982qA3F3QD6H4=
 github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0/go.mod h1:zJYVVT2jmtg6P3p1VtQj7WsuWi/y4VnjVBn7F8KPB3I=
 github.com/magiconair/properties v1.8.10 h1:s31yESBquKXCV9a/ScB3ESkOjUYYv+X0rg8SYxI99mE=
 github.com/magiconair/properties v1.8.10/go.mod h1:Dhd985XPs7jluiymwWYZ0G4Z61jb3vdS329zhj2hYo0=
+github.com/mattn/go-isatty v0.0.21 h1:xYae+lCNBP7QuW4PUnNG61ffM4hVIfm+zUzDuSzYLGs=
+github.com/mattn/go-isatty v0.0.21/go.mod h1:ZXfXG4SQHsB/w3ZeOYbR0PrPwLy+n6xiMrJlRFqopa4=
+github.com/mdelapenya/tlscert v0.2.0 h1:7H81W6Z/4weDvZBNOfQte5GpIMo0lGYEeWbkGp5LJHI=
+github.com/mdelapenya/tlscert v0.2.0/go.mod h1:O4njj3ELLnJjGdkN7M/vIVCpZ+Cf0L6muqOG4tLSl8o=
+github.com/mfridman/interpolate v0.0.2 h1:pnuTK7MQIxxFz1Gr+rjSIx9u7qVjf5VOoM/u6BbAxPY=
+github.com/mfridman/interpolate v0.0.2/go.mod h1:p+7uk6oE07mpE/Ik1b8EckO0O4ZXiGAfshKBWLUM9Xg=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
 github.com/moby/go-archive v0.2.0 h1:zg5QDUM2mi0JIM9fdQZWC7U8+2ZfixfTYoHL7rWUcP8=
 github.com/moby/go-archive v0.2.0/go.mod h1:mNeivT14o8xU+5q1YnNrkQVpK+dnNe/K6fHqnTg4qPU=
-github.com/moby/moby/api v1.54.1 h1:TqVzuJkOLsgLDDwNLmYqACUuTehOHRGKiPhvH8V3Nn4=
-github.com/moby/moby/api v1.54.1/go.mod h1:+RQ6wluLwtYaTd1WnPLykIDPekkuyD/ROWQClE83pzs=
-github.com/moby/moby/client v0.4.0 h1:S+2XegzHQrrvTCvF6s5HFzcrywWQmuVnhOXe2kiWjIw=
-github.com/moby/moby/client v0.4.0/go.mod h1:QWPbvWchQbxBNdaLSpoKpCdf5E+WxFAgNHogCWDoa7g=
+github.com/moby/moby/api v1.54.2 h1:wiat9QAhnDQjA7wk1kh/TqHz2I1uUA7M7t9SAl/JNXg=
+github.com/moby/moby/api v1.54.2/go.mod h1:+RQ6wluLwtYaTd1WnPLykIDPekkuyD/ROWQClE83pzs=
+github.com/moby/moby/client v0.4.1 h1:DMQgisVoMkmMs7fp3ROSdiBnoAu8+vo3GggFl06M/wY=
+github.com/moby/moby/client v0.4.1/go.mod h1:z52C9O2POPOsnxZAy//WtKcQ32P+jT/NGeXu/7nfjGQ=
 github.com/moby/patternmatcher v0.6.1 h1:qlhtafmr6kgMIJjKJMDmMWq7WLkKIo23hsrpR3x084U=
 github.com/moby/patternmatcher v0.6.1/go.mod h1:hDPoyOpDY7OrrMDLaYoY3hf52gNCR/YOUYxkhApJIxc=
 github.com/moby/sys/sequential v0.6.0 h1:qrx7XFUd/5DxtqcoH1h438hF5TmOvzC/lspjy7zgvCU=
@@ -81,39 +105,44 @@ github.com/moby/sys/userns v0.1.0 h1:tVLXkFOxVu9A64/yh59slHVv9ahO9UIev4JZusOLG/g
 github.com/moby/sys/userns v0.1.0/go.mod h1:IHUYgu/kao6N8YZlp9Cf444ySSvCmDlmzUcYfDHOl28=
 github.com/moby/term v0.5.2 h1:6qk3FJAFDs6i/q3W/pQ97SX192qKfZgGjCQqfCJkgzQ=
 github.com/moby/term v0.5.2/go.mod h1:d3djjFCrjnB+fl8NJux+EJzu0msscUP+f8it8hPkFLc=
+github.com/ncruces/go-strftime v1.0.0 h1:HMFp8mLCTPp341M/ZnA4qaf7ZlsbTc+miZjCLOFAw7w=
+github.com/ncruces/go-strftime v1.0.0/go.mod h1:Fwc5htZGVVkseilnfgOVb9mKy6w1naJmn9CehxcKcls=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
 github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=
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@@ -122,31 +151,55 @@ github.com/yuin/gopher-lua v1.1.1 h1:kYKnWBjvbNP4XLT3+bPEwAXJx262OhaHDWDVOPjL46M
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-go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.60.0 h1:sbiXRNDSWJOTobXh5HyQKjq6wUC5tNybqjIqDpAY4CU=
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diff --git a/internal/decimal/decimal.go b/internal/decimal/decimal.go
index aaac483..43a2f7c 100644
--- a/internal/decimal/decimal.go
+++ b/internal/decimal/decimal.go
@@ -1,272 +1,303 @@
-package decimal
-
-import (
-	"fmt"
-	"math"
-	"math/big"
-	"strconv"
-	"strings"
-)
-
-var zeroInt = big.NewInt(0)
-var tenInt = big.NewInt(10)
-
-type Decimal struct {
-	value *big.Int
-	exp   int32
-}
-
-func NewFromString(value string) (Decimal, error) {
-	originalInput := value
-	var intString string
-	var exp int64
-
-	// Check if number is using scientific notation and find dots
-	eIndex := -1
-	pIndex := -1
-	for i, r := range value {
-		if r == 'E' || r == 'e' {
-			if eIndex > -1 {
-				return Decimal{}, fmt.Errorf("can't convert %s to decimal: multiple 'E' characters found", value)
-			}
-			eIndex = i
-			continue
-		}
-
-		if r == '.' {
-			if pIndex > -1 {
-				return Decimal{}, fmt.Errorf("can't convert %s to decimal: too many .s", value)
-			}
-			pIndex = i
-		}
-	}
-
-	if eIndex != -1 {
-		expInt, err := strconv.ParseInt(value[eIndex+1:], 10, 32)
-		if err != nil {
-			if e, ok := err.(*strconv.NumError); ok && e.Err == strconv.ErrRange {
-				return Decimal{}, fmt.Errorf("can't convert %s to decimal: fractional part too long", value)
-			}
-			return Decimal{}, fmt.Errorf("can't convert %s to decimal: exponent is not numeric", value)
-		}
-		value = value[:eIndex]
-		exp = expInt
-	}
-
-	if pIndex == -1 {
-		// There is no decimal point, we can just parse the original string as
-		// an int
-		intString = value
-	} else {
-		if pIndex+1 < len(value) {
-			intString = value[:pIndex] + value[pIndex+1:]
-		} else {
-			intString = value[:pIndex]
-		}
-		expInt := -len(value[pIndex+1:])
-		exp += int64(expInt)
-	}
-
-	var dValue *big.Int
-	// strconv.ParseInt is faster than new(big.Int).SetString so this is just a shortcut for strings we know won't overflow
-	if len(intString) <= 18 {
-		parsed64, err := strconv.ParseInt(intString, 10, 64)
-		if err != nil {
-			return Decimal{}, fmt.Errorf("can't convert %s to decimal", value)
-		}
-		dValue = big.NewInt(parsed64)
-	} else {
-		dValue = new(big.Int)
-		_, ok := dValue.SetString(intString, 10)
-		if !ok {
-			return Decimal{}, fmt.Errorf("can't convert %s to decimal", value)
-		}
-	}
-
-	if exp < math.MinInt32 || exp > math.MaxInt32 {
-		// NOTE(vadim): I doubt a string could realistically be this long
-		return Decimal{}, fmt.Errorf("can't convert %s to decimal: fractional part too long", originalInput)
-	}
-
-	return Decimal{
-		value: dValue,
-		exp:   int32(exp),
-	}, nil
-}
-
-func (d Decimal) String() string {
-	return d.string(true, false)
-}
-
-// Add returns d + d2.
-func (d Decimal) Add(d2 Decimal) Decimal {
-	rd, rd2 := RescalePair(d, d2)
-
-	d3Value := new(big.Int).Add(rd.getValue(), rd2.getValue())
-	return Decimal{
-		value: d3Value,
-		exp:   rd.exp,
-	}
-}
-
-// Sub returns d - d2.
-func (d Decimal) Sub(d2 Decimal) Decimal {
-	rd, rd2 := RescalePair(d, d2)
-
-	d3Value := new(big.Int).Sub(rd.getValue(), rd2.getValue())
-	return Decimal{
-		value: d3Value,
-		exp:   rd.exp,
-	}
-}
-
-// RescalePair rescales two decimals to common exponential value (minimal exp of both decimals)
-func RescalePair(d1 Decimal, d2 Decimal) (Decimal, Decimal) {
-	if d1.exp < d2.exp {
-		return d1, d2.rescale(d1.exp)
-	} else if d1.exp > d2.exp {
-		return d1.rescale(d2.exp), d2
-	}
-
-	return d1, d2
-}
-
-// Compare compares the numbers represented by d and d2 and returns:
-//
-//	-1 if d <  d2
-//	 0 if d == d2
-//	+1 if d >  d2
-func (d Decimal) Compare(d2 Decimal) int {
-	return d.Cmp(d2)
-}
-
-func (d Decimal) Cmp(d2 Decimal) int {
-	if d.exp == d2.exp {
-		return d.getValue().Cmp(d2.getValue())
-	}
-
-	rd, rd2 := RescalePair(d, d2)
-
-	return rd.getValue().Cmp(rd2.getValue())
-}
-
-func (d Decimal) ScientificNotationString() string {
-	exp := int(d.exp)
-	intStr := new(big.Int).Abs(d.getValue()).String()
-	if intStr == "0" {
-		return intStr
-	}
-	first := intStr[0]
-	var remaining string
-	if len(intStr) > 1 {
-		remaining = "." + intStr[1:]
-		exp = exp + len(intStr) - 1
-	}
-	number := string(first) + remaining + "E" + strconv.Itoa(exp)
-	if d.value.Sign() < 0 {
-		return "-" + number
-	}
-	return number
-}
-
-func (d Decimal) string(trimTrailingZeros, useScientificNotation bool) string {
-	if d.exp == 0 {
-		return d.rescale(0).getValue().String()
-	}
-	if d.exp >= 0 {
-		if useScientificNotation {
-			return d.ScientificNotationString()
-		} else {
-			return d.rescale(0).value.String()
-		}
-	}
-
-	abs := new(big.Int).Abs(d.getValue())
-	str := abs.String()
-
-	var intPart, fractionalPart string
-
-	// NOTE(vadim): this cast to int will cause bugs if d.exp == INT_MIN
-	// and you are on a 32-bit machine. Won't fix this super-edge case.
-	dExpInt := int(d.exp)
-	if len(str) > -dExpInt {
-		intPart = str[:len(str)+dExpInt]
-		fractionalPart = str[len(str)+dExpInt:]
-	} else {
-		intPart = "0"
-
-		num0s := -dExpInt - len(str)
-		fractionalPart = strings.Repeat("0", num0s) + str
-	}
-
-	if trimTrailingZeros {
-		i := len(fractionalPart) - 1
-		for ; i >= 0; i-- {
-			if fractionalPart[i] != '0' {
-				break
-			}
-		}
-		fractionalPart = fractionalPart[:i+1]
-	}
-
-	number := intPart
-	if len(fractionalPart) > 0 {
-		number += "." + fractionalPart
-	}
-
-	if d.getValue().Sign() < 0 {
-		return "-" + number
-	}
-
-	return number
-}
-
-func (d Decimal) getValue() *big.Int {
-	if d.value == nil {
-		return zeroInt
-	}
-	return d.value
-}
-
-func (d Decimal) rescale(exp int32) Decimal {
-	if d.exp == exp {
-		return Decimal{
-			new(big.Int).Set(d.getValue()),
-			d.exp,
-		}
-	}
-
-	// NOTE(vadim): must convert exps to float64 before - to prevent overflow
-	diff := math.Abs(float64(exp) - float64(d.exp))
-	value := new(big.Int).Set(d.getValue())
-
-	expScale := new(big.Int).Exp(tenInt, big.NewInt(int64(diff)), nil)
-	if exp > d.exp {
-		value = value.Quo(value, expScale)
-	} else if exp < d.exp {
-		value = value.Mul(value, expScale)
-	}
-
-	return Decimal{
-		value: value,
-		exp:   exp,
-	}
-}
-
-// Sign returns:
-//
-//	-1 if d <  0
-//	 0 if d == 0
-//	+1 if d >  0
-func (d Decimal) Sign() int {
-	return d.getValue().Sign()
-}
-
-// IsPositive return
-//
-//	true if d > 0
-//	false if d == 0
-//	false if d < 0
-func (d Decimal) IsPositive() bool {
-	return d.Sign() == 1
-}
+package decimal
+
+import (
+	"encoding/json"
+	"fmt"
+	"math"
+	"math/big"
+	"strconv"
+	"strings"
+)
+
+var zeroInt = big.NewInt(0)
+var tenInt = big.NewInt(10)
+
+type Decimal struct {
+	value *big.Int
+	exp   int32
+}
+
+func NewFromString(value string) (Decimal, error) {
+	originalInput := value
+	var intString string
+	var exp int64
+
+	// Check if number is using scientific notation and find dots
+	eIndex := -1
+	pIndex := -1
+	for i, r := range value {
+		if r == 'E' || r == 'e' {
+			if eIndex > -1 {
+				return Decimal{}, fmt.Errorf("can't convert %s to decimal: multiple 'E' characters found", value)
+			}
+			eIndex = i
+			continue
+		}
+
+		if r == '.' {
+			if pIndex > -1 {
+				return Decimal{}, fmt.Errorf("can't convert %s to decimal: too many .s", value)
+			}
+			pIndex = i
+		}
+	}
+
+	if eIndex != -1 {
+		expInt, err := strconv.ParseInt(value[eIndex+1:], 10, 32)
+		if err != nil {
+			if e, ok := err.(*strconv.NumError); ok && e.Err == strconv.ErrRange {
+				return Decimal{}, fmt.Errorf("can't convert %s to decimal: fractional part too long", value)
+			}
+			return Decimal{}, fmt.Errorf("can't convert %s to decimal: exponent is not numeric", value)
+		}
+		value = value[:eIndex]
+		exp = expInt
+	}
+
+	if pIndex == -1 {
+		// There is no decimal point, we can just parse the original string as
+		// an int
+		intString = value
+	} else {
+		if pIndex+1 < len(value) {
+			intString = value[:pIndex] + value[pIndex+1:]
+		} else {
+			intString = value[:pIndex]
+		}
+		expInt := -len(value[pIndex+1:])
+		exp += int64(expInt)
+	}
+
+	var dValue *big.Int
+	// strconv.ParseInt is faster than new(big.Int).SetString so this is just a shortcut for strings we know won't overflow
+	if len(intString) <= 18 {
+		parsed64, err := strconv.ParseInt(intString, 10, 64)
+		if err != nil {
+			return Decimal{}, fmt.Errorf("can't convert %s to decimal", value)
+		}
+		dValue = big.NewInt(parsed64)
+	} else {
+		dValue = new(big.Int)
+		_, ok := dValue.SetString(intString, 10)
+		if !ok {
+			return Decimal{}, fmt.Errorf("can't convert %s to decimal", value)
+		}
+	}
+
+	if exp < math.MinInt32 || exp > math.MaxInt32 {
+		// NOTE(vadim): I doubt a string could realistically be this long
+		return Decimal{}, fmt.Errorf("can't convert %s to decimal: fractional part too long", originalInput)
+	}
+
+	return Decimal{
+		value: dValue,
+		exp:   int32(exp),
+	}, nil
+}
+
+func (d Decimal) String() string {
+	return d.string(true, false)
+}
+
+// Add returns d + d2.
+func (d Decimal) Add(d2 Decimal) Decimal {
+	rd, rd2 := RescalePair(d, d2)
+
+	d3Value := new(big.Int).Add(rd.getValue(), rd2.getValue())
+	return Decimal{
+		value: d3Value,
+		exp:   rd.exp,
+	}
+}
+
+// Sub returns d - d2.
+func (d Decimal) Sub(d2 Decimal) Decimal {
+	rd, rd2 := RescalePair(d, d2)
+
+	d3Value := new(big.Int).Sub(rd.getValue(), rd2.getValue())
+	return Decimal{
+		value: d3Value,
+		exp:   rd.exp,
+	}
+}
+
+// RescalePair rescales two decimals to common exponential value (minimal exp of both decimals)
+func RescalePair(d1 Decimal, d2 Decimal) (Decimal, Decimal) {
+	if d1.exp < d2.exp {
+		return d1, d2.rescale(d1.exp)
+	} else if d1.exp > d2.exp {
+		return d1.rescale(d2.exp), d2
+	}
+
+	return d1, d2
+}
+
+// Compare compares the numbers represented by d and d2 and returns:
+//
+//	-1 if d <  d2
+//	 0 if d == d2
+//	+1 if d >  d2
+func (d Decimal) Compare(d2 Decimal) int {
+	return d.Cmp(d2)
+}
+
+func (d Decimal) Cmp(d2 Decimal) int {
+	if d.exp == d2.exp {
+		return d.getValue().Cmp(d2.getValue())
+	}
+
+	rd, rd2 := RescalePair(d, d2)
+
+	return rd.getValue().Cmp(rd2.getValue())
+}
+
+func (d Decimal) ScientificNotationString() string {
+	exp := int(d.exp)
+	intStr := new(big.Int).Abs(d.getValue()).String()
+	if intStr == "0" {
+		return intStr
+	}
+	first := intStr[0]
+	var remaining string
+	if len(intStr) > 1 {
+		remaining = "." + intStr[1:]
+		exp = exp + len(intStr) - 1
+	}
+	number := string(first) + remaining + "E" + strconv.Itoa(exp)
+	if d.value.Sign() < 0 {
+		return "-" + number
+	}
+	return number
+}
+
+func (d Decimal) string(trimTrailingZeros, useScientificNotation bool) string {
+	if d.exp == 0 {
+		return d.rescale(0).getValue().String()
+	}
+	if d.exp >= 0 {
+		if useScientificNotation {
+			return d.ScientificNotationString()
+		} else {
+			return d.rescale(0).value.String()
+		}
+	}
+
+	abs := new(big.Int).Abs(d.getValue())
+	str := abs.String()
+
+	var intPart, fractionalPart string
+
+	// NOTE(vadim): this cast to int will cause bugs if d.exp == INT_MIN
+	// and you are on a 32-bit machine. Won't fix this super-edge case.
+	dExpInt := int(d.exp)
+	if len(str) > -dExpInt {
+		intPart = str[:len(str)+dExpInt]
+		fractionalPart = str[len(str)+dExpInt:]
+	} else {
+		intPart = "0"
+
+		num0s := -dExpInt - len(str)
+		fractionalPart = strings.Repeat("0", num0s) + str
+	}
+
+	if trimTrailingZeros {
+		i := len(fractionalPart) - 1
+		for ; i >= 0; i-- {
+			if fractionalPart[i] != '0' {
+				break
+			}
+		}
+		fractionalPart = fractionalPart[:i+1]
+	}
+
+	number := intPart
+	if len(fractionalPart) > 0 {
+		number += "." + fractionalPart
+	}
+
+	if d.getValue().Sign() < 0 {
+		return "-" + number
+	}
+
+	return number
+}
+
+func (d Decimal) getValue() *big.Int {
+	if d.value == nil {
+		return zeroInt
+	}
+	return d.value
+}
+
+func (d Decimal) rescale(exp int32) Decimal {
+	if d.exp == exp {
+		return Decimal{
+			new(big.Int).Set(d.getValue()),
+			d.exp,
+		}
+	}
+
+	// NOTE(vadim): must convert exps to float64 before - to prevent overflow
+	diff := math.Abs(float64(exp) - float64(d.exp))
+	value := new(big.Int).Set(d.getValue())
+
+	expScale := new(big.Int).Exp(tenInt, big.NewInt(int64(diff)), nil)
+	if exp > d.exp {
+		value = value.Quo(value, expScale)
+	} else if exp < d.exp {
+		value = value.Mul(value, expScale)
+	}
+
+	return Decimal{
+		value: value,
+		exp:   exp,
+	}
+}
+
+// Sign returns:
+//
+//	-1 if d <  0
+//	 0 if d == 0
+//	+1 if d >  0
+func (d Decimal) Sign() int {
+	return d.getValue().Sign()
+}
+
+// IsPositive return
+//
+//	true if d > 0
+//	false if d == 0
+//	false if d < 0
+func (d Decimal) IsPositive() bool {
+	return d.Sign() == 1
+}
+
+func Zero() Decimal {
+	return Decimal{
+		value: big.NewInt(0),
+		exp:   0,
+	}
+}
+
+// MarshalJSON implements json.Marshaler
+func (d Decimal) MarshalJSON() ([]byte, error) {
+	return json.Marshal(d.String())
+}
+
+// UnmarshalJSON implements json.Unmarshaler
+func (d *Decimal) UnmarshalJSON(data []byte) error {
+	var s string
+	if err := json.Unmarshal(data, &s); err != nil {
+		// If it's not a string, try to unmarshal as number and convert to string
+		var n float64
+		if err2 := json.Unmarshal(data, &n); err2 == nil {
+			s = strconv.FormatFloat(n, 'f', -1, 64)
+		} else {
+			return err
+		}
+	}
+
+	var err error
+	*d, err = NewFromString(s)
+	return err
+}
diff --git a/internal/decimal/sql.go b/internal/decimal/sql.go
index 858ca2a..2ce1da2 100644
--- a/internal/decimal/sql.go
+++ b/internal/decimal/sql.go
@@ -1,39 +1,39 @@
-package decimal
-
-import (
-	"database/sql/driver"
-	"fmt"
-)
-
-// Scan implements the sql.Scanner interface for database deserialization.
-func (d *Decimal) Scan(value interface{}) error {
-	// first try to see if the data is stored in database as a Numeric datatype
-	switch v := value.(type) {
-	case string:
-		var err error
-		*d, err = NewFromString(unquoteIfQuoted(v))
-		return err
-
-	case []byte:
-		var err error
-		*d, err = NewFromString(unquoteIfQuoted(string(v)))
-		return err
-
-	default:
-		return fmt.Errorf("could not convert value '%+v' to any known type", value)
-	}
-}
-
-// Value implements the driver.Valuer interface for database serialization.
-func (d Decimal) Value() (driver.Value, error) {
-	return d.String(), nil
-}
-
-func unquoteIfQuoted(value string) string {
-	// If the amount is quoted, strip the quotes
-	if len(value) > 2 && value[0] == '"' && value[len(value)-1] == '"' {
-		return value[1 : len(value)-1]
-	}
-
-	return value
-}
+package decimal
+
+import (
+	"database/sql/driver"
+	"fmt"
+)
+
+// Scan implements the sql.Scanner interface for database deserialization.
+func (d *Decimal) Scan(value interface{}) error {
+	// first try to see if the data is stored in database as a Numeric datatype
+	switch v := value.(type) {
+	case string:
+		var err error
+		*d, err = NewFromString(unquoteIfQuoted(v))
+		return err
+
+	case []byte:
+		var err error
+		*d, err = NewFromString(unquoteIfQuoted(string(v)))
+		return err
+
+	default:
+		return fmt.Errorf("could not convert value '%+v' to any known type", value)
+	}
+}
+
+// Value implements the driver.Valuer interface for database serialization.
+func (d Decimal) Value() (driver.Value, error) {
+	return d.String(), nil
+}
+
+func unquoteIfQuoted(value string) string {
+	// If the amount is quoted, strip the quotes
+	if len(value) > 2 && value[0] == '"' && value[len(value)-1] == '"' {
+		return value[1 : len(value)-1]
+	}
+
+	return value
+}
diff --git a/internal/delivery/http/account_handler.go b/internal/delivery/http/account_handler.go
new file mode 100644
index 0000000..bd7e7fe
--- /dev/null
+++ b/internal/delivery/http/account_handler.go
@@ -0,0 +1,104 @@
+package handlers
+
+import (
+	"errors"
+	"net/http"
+	"processing/internal/domain"
+	"strconv"
+
+	"github.com/google/uuid"
+)
+
+type AccountDTO struct {
+	Name     string `json:"name"`
+	Password string `json:"password"`
+	Email    string `json:"email"`
+}
+
+// выводит информацию об аккаунте по айди
+// GET /accounts/:id
+func (h *handler) GetAccount(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+
+	accountIDStr := r.PathValue("id")
+	accountID, err := uuid.Parse(accountIDStr)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	ctxUserID, ok := ctx.Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusUnauthorized, errors.New("user_id не найден в контексте"), 0)
+		return
+	}
+	if ctxUserID != accountID.String() {
+		writeError(w, http.StatusForbidden, domain.ErrAccessDenied, 0)
+		return
+	}
+
+	account, err := h.as.GetAccount(ctx, accountID)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err, 1)
+		return
+	}
+
+	if err := writeJSON(w, http.StatusOK, account); err != nil {
+		h.log.Error("[GetAccount] json encode", "err", err)
+	}
+}
+
+type AccountTransactions struct {
+	Transactions []domain.Transaction `json:"transactions"`
+	Total        int                  `json:"total"`
+}
+
+// Get /accounts/:id/transactions?limit=..&offset=...
+func (h *handler) AccountTransactions(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+
+	accountIDStr := r.PathValue("id")
+	accountID, err := uuid.Parse(accountIDStr)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	ctxUserID, ok := ctx.Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusUnauthorized, errors.New("user_id не найден в контексте"), 0)
+		return
+	}
+	if ctxUserID != accountID.String() {
+		writeError(w, http.StatusForbidden, domain.ErrAccessDenied, 0)
+		return
+	}
+
+	limit := r.URL.Query().Get("limit")
+	offset := r.URL.Query().Get("offset")
+	l, err := strconv.Atoi(limit)
+	if err != nil {
+		l = 10
+	}
+	o, err := strconv.Atoi(offset)
+	if err != nil {
+		o = 0
+	}
+
+	total, transactions, err := h.as.TransactionHistory(ctx, accountID, l, o)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+		return
+	}
+
+	dto := AccountTransactions{
+		Transactions: transactions,
+		Total:        total,
+	}
+
+	if err := writeJSON(w, http.StatusOK, dto); err != nil {
+		h.log.Error("[AccountTransactions] json encode", "err", err)
+	}
+}
diff --git a/internal/delivery/http/account_test.go b/internal/delivery/http/account_test.go
new file mode 100644
index 0000000..005cc1d
--- /dev/null
+++ b/internal/delivery/http/account_test.go
@@ -0,0 +1,337 @@
+package handlers
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"processing/internal/decimal"
+	"processing/internal/delivery/http/mocks"
+	"processing/internal/domain"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetAccountHandler(t *testing.T) {
+	testUserID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174000")
+
+	tests := []struct {
+		name               string
+		accountID          string
+		setupMock          func(*mocks.AccountsUsecase)
+		expectedStatusCode int
+		expectError        bool
+	}{
+		{
+			name:      "успешное получение аккаунта",
+			accountID: testUserID.String(),
+			setupMock: func(m *mocks.AccountsUsecase) {
+				balance, _ := decimal.NewFromString("1000.50")
+				expectedAccount := &domain.Account{
+					ID:           testUserID,
+					Name:         "Test User",
+					Email:        "test@example.com",
+					Balance:      balance,
+					PasswordHash: "hashed_password",
+					Role:         "user",
+				}
+				m.On("GetAccount",
+					mock.Anything,
+					testUserID,
+				).Return(expectedAccount, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+		},
+		{
+			name:      "невалидный UUID аккаунта",
+			accountID: "invalid-uuid",
+			setupMock: func(m *mocks.AccountsUsecase) {
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name:      "доступ запрещен к чужому аккаунту",
+			accountID: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001").String(),
+			setupMock: func(m *mocks.AccountsUsecase) {
+			},
+			expectedStatusCode: http.StatusForbidden,
+			expectError:        true,
+		},
+		{
+			name:      "аккаунт не найден",
+			accountID: testUserID.String(),
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("GetAccount",
+					mock.Anything,
+					testUserID,
+				).Return(nil, errors.New("аккаунт не найден")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+		{
+			name:      "ошибка БД при получении аккаунта",
+			accountID: testUserID.String(),
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("GetAccount",
+					mock.Anything,
+					testUserID,
+				).Return(nil, errors.New("database connection error")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockAccountUsecase := mocks.NewAccountsUsecase(t)
+			mockTransactionUsecase := mocks.NewTransactionUsecase(t)
+			mockAuthUsecase := mocks.NewAuthUseCase(t)
+			handler := NewHandler(mockTransactionUsecase, mockAccountUsecase, mockAuthUsecase, nil)
+
+			tt.setupMock(mockAccountUsecase)
+
+			req := httptest.NewRequest(http.MethodGet, "/accounts/"+tt.accountID, nil)
+			req.SetPathValue("id", tt.accountID)
+			ctx := context.WithValue(context.Background(), "user_id", testUserID.String())
+			req = req.WithContext(ctx)
+
+			rr := httptest.NewRecorder()
+			handler.GetAccount(rr, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rr.Code, "неожиданный статус код")
+			assert.Equal(t, "application/json", rr.Header().Get("Content-Type"))
+
+			if tt.expectError {
+				assert.NotEmpty(t, rr.Body.String(), "ожидался response body с ошибкой")
+			} else {
+				var response domain.Account
+				err := json.Unmarshal(rr.Body.Bytes(), &response)
+				assert.NoError(t, err, "ответ должен быть валидным JSON")
+				assert.Equal(t, testUserID, response.ID)
+				assert.NotEmpty(t, response.Name)
+				assert.NotEmpty(t, response.Email)
+			}
+		})
+		t.Log("\n\n\n")
+	}
+}
+
+func TestAccountTransactionsHandler(t *testing.T) {
+	testUserID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174000")
+	validTransactionID1 := uuid.MustParse("223e4567-e89b-12d3-a456-426614174001")
+	validTransactionID2 := uuid.MustParse("323e4567-e89b-12d3-a456-426614174002")
+
+	tests := []struct {
+		name               string
+		accountID          string
+		limit              string
+		offset             string
+		setupMock          func(*mocks.AccountsUsecase)
+		expectedStatusCode int
+		expectError        bool
+		expectedTotal      int
+		expectedCount      int
+	}{
+		{
+			name:      "успешное получение истории транзакций",
+			accountID: testUserID.String(),
+			limit:     "10",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				amount1, _ := decimal.NewFromString("500.00")
+				amount2, _ := decimal.NewFromString("250.50")
+				expectedTransactions := []domain.Transaction{
+					{
+						ID:          validTransactionID1,
+						Amount:      amount1,
+						Sender_id:   testUserID,
+						Receiver_id: uuid.MustParse("423e4567-e89b-12d3-a456-426614174003"),
+						Status:      domain.StatusCompleted,
+						Created_at:  time.Now(),
+					},
+					{
+						ID:          validTransactionID2,
+						Amount:      amount2,
+						Sender_id:   uuid.MustParse("523e4567-e89b-12d3-a456-426614174004"),
+						Receiver_id: testUserID,
+						Status:      domain.StatusCompleted,
+						Created_at:  time.Now().Add(-24 * time.Hour),
+					},
+				}
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					10,
+					0,
+				).Return(25, expectedTransactions, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+			expectedTotal:      25,
+			expectedCount:      2,
+		},
+		{
+			name:      "получение с пагинацией offset",
+			accountID: testUserID.String(),
+			limit:     "5",
+			offset:    "10",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				amount, _ := decimal.NewFromString("100.00")
+				expectedTransactions := []domain.Transaction{
+					{
+						ID:          validTransactionID1,
+						Amount:      amount,
+						Sender_id:   testUserID,
+						Receiver_id: uuid.MustParse("623e4567-e89b-12d3-a456-426614174005"),
+						Status:      domain.StatusCompleted,
+						Created_at:  time.Now(),
+					},
+				}
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					5,
+					10,
+				).Return(25, expectedTransactions, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+			expectedTotal:      25,
+			expectedCount:      1,
+		},
+		{
+			name:      "пустая история транзакций",
+			accountID: testUserID.String(),
+			limit:     "10",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					10,
+					0,
+				).Return(0, []domain.Transaction{}, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+			expectedTotal:      0,
+			expectedCount:      0,
+		},
+		{
+			name:      "доступ запрещен к чужой истории",
+			accountID: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001").String(),
+			limit:     "10",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+			},
+			expectedStatusCode: http.StatusForbidden,
+			expectError:        true,
+		},
+		{
+			name:      "невалидный UUID аккаунта",
+			accountID: "invalid-uuid",
+			limit:     "10",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name:      "невалидный limit параметр",
+			accountID: testUserID.String(),
+			limit:     "invalid",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					10,
+					0,
+				).Return(25, []domain.Transaction{}, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+			expectedTotal:      25,
+			expectedCount:      0,
+		},
+		{
+			name:      "невалидный offset параметр",
+			accountID: testUserID.String(),
+			limit:     "10",
+			offset:    "invalid",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					10,
+					0,
+				).Return(25, []domain.Transaction{}, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+			expectedTotal:      25,
+			expectedCount:      0,
+		},
+		{
+			name:      "ошибка от usecase",
+			accountID: testUserID.String(),
+			limit:     "10",
+			offset:    "0",
+			setupMock: func(m *mocks.AccountsUsecase) {
+				m.On("TransactionHistory",
+					mock.Anything,
+					testUserID,
+					10,
+					0,
+				).Return(0, nil, errors.New("database error")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockAccountUsecase := mocks.NewAccountsUsecase(t)
+			mockTransactionUsecase := mocks.NewTransactionUsecase(t)
+			mockAuthUsecase := mocks.NewAuthUseCase(t)
+			handler := NewHandler(mockTransactionUsecase, mockAccountUsecase, mockAuthUsecase, nil)
+
+			tt.setupMock(mockAccountUsecase)
+
+			url := "/accounts/" + tt.accountID + "/transactions?limit=" + tt.limit + "&offset=" + tt.offset
+			req := httptest.NewRequest(http.MethodGet, url, nil)
+			req.SetPathValue("id", tt.accountID)
+			ctx := context.WithValue(context.Background(), "user_id", testUserID.String())
+			req = req.WithContext(ctx)
+
+			rr := httptest.NewRecorder()
+			handler.AccountTransactions(rr, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rr.Code, "неожиданный статус код")
+
+			if !tt.expectError {
+				assert.Equal(t, "application/json", rr.Header().Get("Content-Type"))
+				var response AccountTransactions
+				err := json.Unmarshal(rr.Body.Bytes(), &response)
+				require.NoError(t, err, "ответ должен быть валидным JSON")
+				assert.Equal(t, tt.expectedTotal, response.Total, "неожиданное количество страниц")
+				assert.Equal(t, tt.expectedCount, len(response.Transactions), "неожиданное количество транзакций")
+			} else {
+				assert.NotEmpty(t, rr.Body.String(), "ожидался response body с ошибкой")
+			}
+		})
+		t.Log("\n\n\n")
+	}
+}
diff --git a/internal/delivery/http/auth_handler.go b/internal/delivery/http/auth_handler.go
new file mode 100644
index 0000000..b87dec4
--- /dev/null
+++ b/internal/delivery/http/auth_handler.go
@@ -0,0 +1,182 @@
+package handlers
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"processing/internal/domain"
+
+	"github.com/google/uuid"
+)
+
+type AuthDTO struct {
+	Email    string `json:"email"`
+	Password string `json:"password"`
+	Name     string `json:"username"`
+}
+
+func (h *handler) Register(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+	ip := r.RemoteAddr
+
+	var dto AuthDTO
+	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	if !validateRegister(w, &dto) {
+		return
+	}
+
+	account, err := h.auth.Register(ctx, dto.Email, dto.Password, dto.Name, ip)
+	if err != nil {
+		if errors.Is(err, domain.ErrAccountAlreadyExist) {
+			writeError(w, http.StatusConflict, err, 0)
+			return
+		}
+		writeError(w, http.StatusInternalServerError, err, 0)
+		return
+	}
+
+	token, err := h.auth.Login(ctx, dto.Email, dto.Password, ip)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+		return
+	}
+
+	setAuthCookie(w, "/api", "access_token", token.AccessToken, 900)
+	setAuthCookie(w, "/auth/refresh", "refresh_token", token.RefreshToken, 604800)
+	if err := writeJSON(w, http.StatusCreated, map[string]interface{}{
+		"account": account,
+		"tokens":  token,
+	}); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 1) //
+	}
+}
+
+func (h *handler) Login(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+	ip := r.RemoteAddr
+
+	var dto AuthDTO
+	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	if !validateLogin(w, &dto) {
+		return
+	}
+
+	token, err := h.auth.Login(ctx, dto.Email, dto.Password, ip)
+	if err != nil {
+		if errors.Is(err, domain.ErrInvalidCredentials) {
+			writeError(w, http.StatusUnauthorized, err, 0)
+			return
+		}
+		writeError(w, http.StatusInternalServerError, err, 1)
+		return
+	}
+
+	setAuthCookie(w, "/api", "access_token", token.AccessToken, 900)
+	setAuthCookie(w, "/auth/refresh", "refresh_token", token.RefreshToken, 604800)
+	if err := writeJSON(w, http.StatusOK, token); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 1) //
+	}
+}
+
+func (h *handler) Refresh(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+	cookie, err := r.Cookie("refresh_token")
+	var refreshToken string
+	if err == nil {
+		refreshToken = cookie.Value
+	} else {
+		var req struct {
+			RefreshToken string `json:"refresh_token"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&req); err == nil {
+			refreshToken = req.RefreshToken
+		}
+	}
+	ip := r.RemoteAddr
+	if refreshToken == "" {
+		writeError(w, http.StatusBadRequest, errors.New("refresh token отсутствует"), 1)
+		return
+	}
+
+	token, err := h.auth.Refresh(ctx, refreshToken, ip)
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+		return
+	}
+
+	setAuthCookie(w, "/api", "access_token", token.AccessToken, 900)
+	setAuthCookie(w, "/auth/refresh", "refresh_token", token.RefreshToken, 604800)
+	if err := writeJSON(w, http.StatusOK, token); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+	}
+}
+
+func (h *handler) Logout(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+	var refreshToken string
+	cookie, err := r.Cookie("refresh_token")
+	if err == nil {
+		refreshToken = cookie.Value
+	} else {
+		var req struct {
+			RefreshToken string `json:"refresh_token"`
+		}
+		if err := json.NewDecoder(r.Body).Decode(&req); err != nil {
+			writeError(w, http.StatusBadRequest, errors.New("refresh token отсутствует"), 0)
+			return
+		}
+		refreshToken = req.RefreshToken
+	}
+	ip := r.RemoteAddr
+	if refreshToken == "" {
+		writeError(w, http.StatusBadRequest, errors.New("refresh token отсутствует"), 0)
+		return
+	}
+
+	if err := h.auth.Logout(ctx, refreshToken, ip); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+	}
+	setAuthCookie(w, "/api", "access_token", "", -1)
+	setAuthCookie(w, "/auth/refresh", "refresh_token", "", -1)
+	if err := writeJSON(w, http.StatusOK, map[string]string{"message": "success"}); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+	}
+}
+
+func (h *handler) LogoutAll(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	ctx := r.Context()
+
+	ctxUserID, ok := r.Context().Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusBadRequest, errors.New("поле user_id должно быть string"), 1)
+		return
+	}
+
+	userID, err := uuid.Parse(ctxUserID)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	if err := h.auth.LogoutAll(ctx, userID); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+	}
+	setAuthCookie(w, "/api", "access_token", "", -1)
+	setAuthCookie(w, "/auth/refresh", "refresh_token", "", -1)
+	if err := writeJSON(w, http.StatusOK, map[string]string{"message": "success"}); err != nil {
+		writeError(w, http.StatusInternalServerError, err, 0)
+	}
+}
diff --git a/internal/delivery/http/auth_test.go b/internal/delivery/http/auth_test.go
new file mode 100644
index 0000000..377011d
--- /dev/null
+++ b/internal/delivery/http/auth_test.go
@@ -0,0 +1,1084 @@
+package handlers
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"processing/internal/decimal"
+	"processing/internal/delivery/http/mocks"
+	"processing/internal/domain"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+)
+
+func TestRegisterHandler(t *testing.T) {
+	testUserID := uuid.New()
+	testBalance, _ := decimal.NewFromString("0")
+	testAccount := &domain.Account{
+		ID:      testUserID,
+		Name:    "TestUser",
+		Email:   "test@example.com",
+		Balance: testBalance,
+		Role:    "user",
+	}
+	testTokenPair := &domain.TokenPair{
+		AccessToken:  "test_access_token",
+		RefreshToken: "test_refresh_token",
+		ExpiresIn:    900,
+	}
+
+	tests := []struct {
+		name               string
+		requestBody        interface{}
+		setupMock          func(*mocks.AuthUseCase)
+		expectedStatusCode int
+		checkResponse      func(*testing.T, *httptest.ResponseRecorder)
+	}{
+		{
+			name: "успешная регистрация",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+				Name:     "TestUser",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Register", mock.Anything, "test@example.com", "password123", "TestUser", mock.Anything).
+					Return(testAccount, nil)
+				authMock.On("Login", mock.Anything, "test@example.com", "password123", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusCreated,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "account")
+				assert.Contains(t, response, "tokens")
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+
+				var accessCookie, refreshCookie *http.Cookie
+				for _, cookie := range cookies {
+					if cookie.Name == "access_token" {
+						accessCookie = cookie
+					}
+					if cookie.Name == "refresh_token" {
+						refreshCookie = cookie
+					}
+				}
+
+				assert.NotNil(t, accessCookie)
+				assert.Equal(t, "test_access_token", accessCookie.Value)
+				assert.Equal(t, "/api", accessCookie.Path)
+				assert.Equal(t, 900, accessCookie.MaxAge)
+
+				assert.NotNil(t, refreshCookie)
+				assert.Equal(t, "test_refresh_token", refreshCookie.Value)
+				assert.Equal(t, "/auth/refresh", refreshCookie.Path)
+				assert.Equal(t, 604800, refreshCookie.MaxAge)
+			},
+		},
+		{
+			name:               "невалидный JSON",
+			requestBody:        "invalid json",
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "пустое имя",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+				Name:     "",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с именем не может быть пустым")
+			},
+		},
+		{
+			name: "имя короче 3 символов",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+				Name:     "ab",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "имя не может быть меньше 3 букв")
+			},
+		},
+		{
+			name: "пустой email",
+			requestBody: AuthDTO{
+				Email:    "",
+				Password: "password123",
+				Name:     "TestUser",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с почтой не может быть пустым")
+			},
+		},
+		{
+			name: "невалидный формат email",
+			requestBody: AuthDTO{
+				Email:    "invalid-email",
+				Password: "password123",
+				Name:     "TestUser",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "введите корректный адрес электронной почты")
+			},
+		},
+		{
+			name: "пустой пароль",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "",
+				Name:     "TestUser",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с паролем не может быть пустым")
+			},
+		},
+		{
+			name: "пароль короче 8 символов",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "pass123",
+				Name:     "TestUser",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "длина пароля не может быть меньше 8 символов")
+			},
+		},
+		{
+			name: "ошибка при регистрации",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+				Name:     "TestUser",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Register", mock.Anything, "test@example.com", "password123", "TestUser", mock.Anything).
+					Return(nil, errors.New("database error"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "ошибка при автоматическом логине после регистрации",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+				Name:     "TestUser",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Register", mock.Anything, "test@example.com", "password123", "TestUser", mock.Anything).
+					Return(testAccount, nil)
+				authMock.On("Login", mock.Anything, "test@example.com", "password123", mock.Anything).
+					Return(nil, errors.New("login failed"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "email с пробелами обрезается",
+			requestBody: AuthDTO{
+				Email:    "  test@example.com  ",
+				Password: "password123",
+				Name:     "  TestUser  ",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Register", mock.Anything, "test@example.com", "password123", "TestUser", mock.Anything).
+					Return(testAccount, nil)
+				authMock.On("Login", mock.Anything, "test@example.com", "password123", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusCreated,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "account")
+				assert.Contains(t, response, "tokens")
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			authMock := mocks.NewAuthUseCase(t)
+			tt.setupMock(authMock)
+
+			handler := &handler{
+				auth: authMock,
+			}
+
+			var body []byte
+			var err error
+			if str, ok := tt.requestBody.(string); ok {
+				body = []byte(str)
+			} else {
+				body, err = json.Marshal(tt.requestBody)
+				assert.NoError(t, err)
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/auth/register", bytes.NewBuffer(body))
+			req.RemoteAddr = "127.0.0.1:1234"
+			req = req.WithContext(context.Background())
+			rec := httptest.NewRecorder()
+
+			handler.Register(rec, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rec.Code)
+			if tt.checkResponse != nil {
+				tt.checkResponse(t, rec)
+			}
+		})
+	}
+}
+
+func TestLoginHandler(t *testing.T) {
+	testTokenPair := &domain.TokenPair{
+		AccessToken:  "test_access_token",
+		RefreshToken: "test_refresh_token",
+		ExpiresIn:    900,
+	}
+
+	tests := []struct {
+		name               string
+		requestBody        interface{}
+		setupMock          func(*mocks.AuthUseCase)
+		expectedStatusCode int
+		checkResponse      func(*testing.T, *httptest.ResponseRecorder)
+	}{
+		{
+			name: "успешный логин",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Login", mock.Anything, "test@example.com", "password123", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "test_access_token", response.AccessToken)
+				assert.Equal(t, "test_refresh_token", response.RefreshToken)
+				assert.Equal(t, int64(900), response.ExpiresIn)
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+
+				var accessCookie, refreshCookie *http.Cookie
+				for _, cookie := range cookies {
+					if cookie.Name == "access_token" {
+						accessCookie = cookie
+					}
+					if cookie.Name == "refresh_token" {
+						refreshCookie = cookie
+					}
+				}
+
+				assert.NotNil(t, accessCookie)
+				assert.Equal(t, "test_access_token", accessCookie.Value)
+				assert.Equal(t, "/api", accessCookie.Path)
+				assert.Equal(t, 900, accessCookie.MaxAge)
+
+				assert.NotNil(t, refreshCookie)
+				assert.Equal(t, "test_refresh_token", refreshCookie.Value)
+				assert.Equal(t, "/auth/refresh", refreshCookie.Path)
+				assert.Equal(t, 604800, refreshCookie.MaxAge)
+			},
+		},
+		{
+			name:               "невалидный JSON",
+			requestBody:        "invalid json",
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "пустой email",
+			requestBody: AuthDTO{
+				Email:    "",
+				Password: "password123",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с почтой не может быть пустым")
+			},
+		},
+		{
+			name: "невалидный формат email",
+			requestBody: AuthDTO{
+				Email:    "invalid-email",
+				Password: "password123",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "введите корректный адрес электронной почты")
+			},
+		},
+		{
+			name: "пустой пароль",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с паролем не может быть пустым")
+			},
+		},
+		{
+			name: "пароль короче 8 символов",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "pass123",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "длина пароля не может быть меньше 8 символов")
+			},
+		},
+		{
+			name: "ошибка при логине - неверные креды",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "password123",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Login", mock.Anything, "test@example.com", "password123", mock.Anything).
+					Return(nil, errors.New("invalid credentials"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+			},
+		},
+		{
+			name: "email с пробелами обрезается",
+			requestBody: AuthDTO{
+				Email:    "  test@example.com  ",
+				Password: "  password123  ",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Login", mock.Anything, "test@example.com", "  password123  ", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "test_access_token", response.AccessToken)
+				assert.Equal(t, "test_refresh_token", response.RefreshToken)
+			},
+		},
+		{
+			name: "email только из пробелов",
+			requestBody: AuthDTO{
+				Email:    "   ",
+				Password: "password123",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusUnprocessableEntity,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				assert.Contains(t, rec.Body.String(), "поле с почтой не может быть пустым")
+			},
+		},
+		{
+			name: "пароль только из пробелов",
+			requestBody: AuthDTO{
+				Email:    "test@example.com",
+				Password: "        ",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Login", mock.Anything, "test@example.com", "        ", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			authMock := mocks.NewAuthUseCase(t)
+			tt.setupMock(authMock)
+
+			handler := &handler{
+				auth: authMock,
+			}
+
+			var body []byte
+			var err error
+			if str, ok := tt.requestBody.(string); ok {
+				body = []byte(str)
+			} else {
+				body, err = json.Marshal(tt.requestBody)
+				assert.NoError(t, err)
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/auth/login", bytes.NewBuffer(body))
+			req.RemoteAddr = "127.0.0.1:1234"
+			req = req.WithContext(context.Background())
+			rec := httptest.NewRecorder()
+
+			handler.Login(rec, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rec.Code)
+			if tt.checkResponse != nil {
+				tt.checkResponse(t, rec)
+			}
+		})
+	}
+}
+
+func TestRefreshHandler(t *testing.T) {
+	testTokenPair := &domain.TokenPair{
+		AccessToken:  "new_access_token",
+		RefreshToken: "new_refresh_token",
+		ExpiresIn:    900,
+	}
+
+	tests := []struct {
+		name               string
+		setupRequest       func(*http.Request)
+		requestBody        interface{}
+		setupMock          func(*mocks.AuthUseCase)
+		expectedStatusCode int
+		checkResponse      func(*testing.T, *httptest.ResponseRecorder)
+	}{
+		{
+			name: "успешный refresh через cookie",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "test_refresh_token",
+				})
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Refresh", mock.Anything, "test_refresh_token", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "new_access_token", response.AccessToken)
+				assert.Equal(t, "new_refresh_token", response.RefreshToken)
+				assert.Equal(t, int64(900), response.ExpiresIn)
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+
+				var accessCookie, refreshCookie *http.Cookie
+				for _, cookie := range cookies {
+					if cookie.Name == "access_token" {
+						accessCookie = cookie
+					}
+					if cookie.Name == "refresh_token" {
+						refreshCookie = cookie
+					}
+				}
+
+				assert.NotNil(t, accessCookie)
+				assert.Equal(t, "new_access_token", accessCookie.Value)
+				assert.Equal(t, "/api", accessCookie.Path)
+				assert.Equal(t, 900, accessCookie.MaxAge)
+
+				assert.NotNil(t, refreshCookie)
+				assert.Equal(t, "new_refresh_token", refreshCookie.Value)
+				assert.Equal(t, "/auth/refresh", refreshCookie.Path)
+				assert.Equal(t, 604800, refreshCookie.MaxAge)
+			},
+		},
+		{
+			name: "успешный refresh через JSON body",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody: map[string]string{
+				"refresh_token": "test_refresh_token",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Refresh", mock.Anything, "test_refresh_token", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "new_access_token", response.AccessToken)
+				assert.Equal(t, "new_refresh_token", response.RefreshToken)
+			},
+		},
+		{
+			name: "отсутствует refresh token - нет cookie и body",
+			setupRequest: func(req *http.Request) {
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+				assert.Contains(t, response["message"], "refresh token отсутствует")
+			},
+		},
+		{
+			name: "пустой refresh token в body",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody: map[string]string{
+				"refresh_token": "",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+				assert.Contains(t, response["message"], "refresh token отсутствует")
+			},
+		},
+		{
+			name: "невалидный JSON",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody:        "invalid json",
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+				assert.Contains(t, response["message"], "refresh token отсутствует")
+			},
+		},
+		{
+			name: "ошибка при refresh",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "invalid_refresh_token",
+				})
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Refresh", mock.Anything, "invalid_refresh_token", mock.Anything).
+					Return(nil, errors.New("invalid refresh token"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "приоритет cookie над body",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "cookie_token",
+				})
+			},
+			requestBody: map[string]string{
+				"refresh_token": "body_token",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Refresh", mock.Anything, "cookie_token", mock.Anything).
+					Return(testTokenPair, nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response domain.TokenPair
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "new_access_token", response.AccessToken)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			authMock := mocks.NewAuthUseCase(t)
+			tt.setupMock(authMock)
+
+			handler := &handler{
+				auth: authMock,
+			}
+
+			var body []byte
+			var err error
+			if tt.requestBody != nil {
+				if str, ok := tt.requestBody.(string); ok {
+					body = []byte(str)
+				} else {
+					body, err = json.Marshal(tt.requestBody)
+					assert.NoError(t, err)
+				}
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/auth/refresh", bytes.NewBuffer(body))
+			req.RemoteAddr = "127.0.0.1:1234"
+			req = req.WithContext(context.Background())
+
+			if tt.setupRequest != nil {
+				tt.setupRequest(req)
+			}
+
+			rec := httptest.NewRecorder()
+
+			handler.Refresh(rec, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rec.Code)
+			if tt.checkResponse != nil {
+				tt.checkResponse(t, rec)
+			}
+		})
+	}
+}
+
+func TestLogoutHandler(t *testing.T) {
+	tests := []struct {
+		name               string
+		setupRequest       func(*http.Request)
+		requestBody        interface{}
+		setupMock          func(*mocks.AuthUseCase)
+		expectedStatusCode int
+		checkResponse      func(*testing.T, *httptest.ResponseRecorder)
+	}{
+		{
+			name: "успешный логаут через cookie",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "test_refresh_token",
+				})
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Logout", mock.Anything, "test_refresh_token", mock.Anything).
+					Return(nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]string
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "success", response["message"])
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+
+				var accessCookie, refreshCookie *http.Cookie
+				for _, cookie := range cookies {
+					if cookie.Name == "access_token" {
+						accessCookie = cookie
+					}
+					if cookie.Name == "refresh_token" {
+						refreshCookie = cookie
+					}
+				}
+
+				assert.NotNil(t, accessCookie)
+				assert.Equal(t, "", accessCookie.Value)
+				assert.Equal(t, -1, accessCookie.MaxAge)
+
+				assert.NotNil(t, refreshCookie)
+				assert.Equal(t, "", refreshCookie.Value)
+				assert.Equal(t, -1, refreshCookie.MaxAge)
+			},
+		},
+		{
+			name: "успешный логаут через JSON body",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody: map[string]string{
+				"refresh_token": "test_refresh_token",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Logout", mock.Anything, "test_refresh_token", mock.Anything).
+					Return(nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]string
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "success", response["message"])
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+			},
+		},
+		{
+			name: "отсутствует refresh token - нет cookie и body",
+			setupRequest: func(req *http.Request) {
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "пустой refresh token в body",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody: map[string]string{
+				"refresh_token": "",
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "невалидный JSON",
+			setupRequest: func(req *http.Request) {
+			},
+			requestBody:        "invalid json",
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "ошибка при логауте",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "test_refresh_token",
+				})
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Logout", mock.Anything, "test_refresh_token", mock.Anything).
+					Return(errors.New("database error"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "приоритет cookie над body",
+			setupRequest: func(req *http.Request) {
+				req.AddCookie(&http.Cookie{
+					Name:  "refresh_token",
+					Value: "cookie_token",
+				})
+			},
+			requestBody: map[string]string{
+				"refresh_token": "body_token",
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("Logout", mock.Anything, "cookie_token", mock.Anything).
+					Return(nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]string
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "success", response["message"])
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			authMock := mocks.NewAuthUseCase(t)
+			tt.setupMock(authMock)
+
+			handler := &handler{
+				auth: authMock,
+			}
+
+			var body []byte
+			var err error
+			if tt.requestBody != nil {
+				if str, ok := tt.requestBody.(string); ok {
+					body = []byte(str)
+				} else {
+					body, err = json.Marshal(tt.requestBody)
+					assert.NoError(t, err)
+				}
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/auth/logout", bytes.NewBuffer(body))
+			req.RemoteAddr = "127.0.0.1:1234"
+			req = req.WithContext(context.Background())
+
+			if tt.setupRequest != nil {
+				tt.setupRequest(req)
+			}
+
+			rec := httptest.NewRecorder()
+
+			handler.Logout(rec, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rec.Code)
+			if tt.checkResponse != nil {
+				tt.checkResponse(t, rec)
+			}
+		})
+	}
+}
+
+func TestLogoutAllHandler(t *testing.T) {
+	testUserID := uuid.New()
+
+	tests := []struct {
+		name               string
+		setupContext       func(context.Context) context.Context
+		setupMock          func(*mocks.AuthUseCase)
+		expectedStatusCode int
+		checkResponse      func(*testing.T, *httptest.ResponseRecorder)
+	}{
+		{
+			name: "успешный logout всех сессий",
+			setupContext: func(ctx context.Context) context.Context {
+				return context.WithValue(ctx, "user_id", testUserID.String())
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("LogoutAll", mock.Anything, testUserID).
+					Return(nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]string
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "success", response["message"])
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+
+				var accessCookie, refreshCookie *http.Cookie
+				for _, cookie := range cookies {
+					if cookie.Name == "access_token" {
+						accessCookie = cookie
+					}
+					if cookie.Name == "refresh_token" {
+						refreshCookie = cookie
+					}
+				}
+
+				assert.NotNil(t, accessCookie)
+				assert.Equal(t, "", accessCookie.Value)
+				assert.Equal(t, -1, accessCookie.MaxAge)
+
+				assert.NotNil(t, refreshCookie)
+				assert.Equal(t, "", refreshCookie.Value)
+				assert.Equal(t, -1, refreshCookie.MaxAge)
+			},
+		},
+		{
+			name: "отсутствует user_id в контексте",
+			setupContext: func(ctx context.Context) context.Context {
+				return ctx
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+				assert.Contains(t, response["message"], "поле user_id должно быть string")
+			},
+		},
+		{
+			name: "user_id не является строкой",
+			setupContext: func(ctx context.Context) context.Context {
+				return context.WithValue(ctx, "user_id", 12345)
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+				assert.Contains(t, response, "message")
+				assert.Contains(t, response["message"], "поле user_id должно быть string")
+			},
+		},
+		{
+			name: "невалидный формат UUID",
+			setupContext: func(ctx context.Context) context.Context {
+				return context.WithValue(ctx, "user_id", "invalid-uuid-format")
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "пустая строка вместо UUID",
+			setupContext: func(ctx context.Context) context.Context {
+				return context.WithValue(ctx, "user_id", "")
+			},
+			setupMock:          func(authMock *mocks.AuthUseCase) {},
+			expectedStatusCode: http.StatusBadRequest,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "ошибка при LogoutAll в usecase",
+			setupContext: func(ctx context.Context) context.Context {
+				return context.WithValue(ctx, "user_id", testUserID.String())
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("LogoutAll", mock.Anything, testUserID).
+					Return(errors.New("database connection error"))
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]interface{}
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Contains(t, response, "error")
+			},
+		},
+		{
+			name: "валидный UUID с другим пользователем",
+			setupContext: func(ctx context.Context) context.Context {
+				anotherUserID := uuid.New()
+				return context.WithValue(ctx, "user_id", anotherUserID.String())
+			},
+			setupMock: func(authMock *mocks.AuthUseCase) {
+				authMock.On("LogoutAll", mock.Anything, mock.AnythingOfType("uuid.UUID")).
+					Return(nil)
+			},
+			expectedStatusCode: http.StatusOK,
+			checkResponse: func(t *testing.T, rec *httptest.ResponseRecorder) {
+				var response map[string]string
+				err := json.NewDecoder(rec.Body).Decode(&response)
+				assert.NoError(t, err)
+				assert.Equal(t, "success", response["message"])
+
+				cookies := rec.Result().Cookies()
+				assert.Len(t, cookies, 2)
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			authMock := mocks.NewAuthUseCase(t)
+			tt.setupMock(authMock)
+
+			handler := &handler{
+				auth: authMock,
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/auth/logout-all", nil)
+			req.RemoteAddr = "127.0.0.1:1234"
+
+			ctx := context.Background()
+			if tt.setupContext != nil {
+				ctx = tt.setupContext(ctx)
+			}
+			req = req.WithContext(ctx)
+
+			rec := httptest.NewRecorder()
+
+			handler.LogoutAll(rec, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rec.Code)
+			if tt.checkResponse != nil {
+				tt.checkResponse(t, rec)
+			}
+		})
+	}
+}
diff --git a/internal/delivery/http/error.go b/internal/delivery/http/error.go
deleted file mode 100644
index 3b000af..0000000
--- a/internal/delivery/http/error.go
+++ /dev/null
@@ -1,30 +0,0 @@
-package handlers
-
-import (
-	"encoding/json"
-	"net/http"
-)
-
-func status(id int) string {
-	m := map[int]string{
-		200: "OK",
-		400: "StatusBadRequest",
-		401: "Unauthorized",
-		403: "Forbidden",
-		404: "StatusNotFound",
-		429: "too many requests",
-		500: "internal server error",
-	}
-	value, _ := m[id]
-	return value
-}
-
-// writeError пишет ошибку клиенту.
-// flag:  1 - полная ошибка, любой другой - только часть
-func writeError(w http.ResponseWriter, code int, err error, flag int) {
-	if flag == 1 {
-		json.NewEncoder(w).Encode(map[string]string{"error": status(code)})
-		json.NewEncoder(w).Encode(map[string]string{"message": err.Error()})
-	}
-	json.NewEncoder(w).Encode(map[string]string{"error": status(code)})
-}
diff --git a/internal/delivery/http/handler.go b/internal/delivery/http/handler.go
new file mode 100644
index 0000000..2876e4e
--- /dev/null
+++ b/internal/delivery/http/handler.go
@@ -0,0 +1,29 @@
+package handlers
+
+import (
+	"log/slog"
+	"processing/internal/domain"
+	"processing/internal/infrastructure/logger"
+)
+
+type handler struct {
+	ts   domain.TransactionUsecase
+	as   domain.AccountsUsecase
+	auth domain.AuthUseCase
+	log  *slog.Logger
+}
+
+func NewHandler(
+	ts domain.TransactionUsecase,
+	as domain.AccountsUsecase,
+	auth domain.AuthUseCase,
+	log *slog.Logger,
+) *handler {
+	log = logger.WithService(log, "handler")
+	return &handler{
+		ts:   ts,
+		as:   as,
+		auth: auth,
+		log:  log,
+	}
+}
diff --git a/internal/delivery/http/handler_test.go b/internal/delivery/http/handler_test.go
deleted file mode 100644
index 0bebd61..0000000
--- a/internal/delivery/http/handler_test.go
+++ /dev/null
@@ -1,3 +0,0 @@
-package handlers
-
-type 
\ No newline at end of file
diff --git a/internal/delivery/http/helper.go b/internal/delivery/http/helper.go
deleted file mode 100644
index 059fd95..0000000
--- a/internal/delivery/http/helper.go
+++ /dev/null
@@ -1,77 +0,0 @@
-package handlers
-
-import (
-	"fmt"
-	"net/url"
-	"processing/internal/domain"
-	"strconv"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-func newTransactionFilter(query url.Values) (*domain.TransactionFilter, error) {
-	senderID, err := parseUUID(query, "sender_id")
-	if err != nil {
-		return nil, err
-	}
-	receiverID, err := parseUUID(query, "receiver_id")
-	if err != nil {
-		return nil, err
-	}
-
-	minAmount := query.Get("min_amount")
-	maxAmount := query.Get("max_amount")
-
-	limit, err := strconv.Atoi(query.Get("limit"))
-	if err != nil {
-		return nil, fmt.Errorf("невалидный limit: %w", err)
-	}
-	offset, err := strconv.Atoi(query.Get("offset"))
-	if err != nil {
-		return nil, fmt.Errorf("невалидный offset: %w", err)
-	}
-
-	from, err := parseTime(query, "from")
-	if err != nil {
-		return nil, err
-	}
-
-	to, err := parseTime(query, "to")
-	if err != nil {
-		return nil, err
-	}
-
-	return &domain.TransactionFilter{
-		SenderID:   senderID,
-		ReceiverID: receiverID,
-		MinAmount:  minAmount,
-		MaxAmount:  maxAmount,
-		From:       from,
-		To:         to,
-		Limit:      limit,
-		Offset:     offset,
-	}, nil
-}
-
-func parseUUID(query url.Values, key string) (uuid.UUID, error) {
-	val := query.Get(key)
-	if val == "" {
-		return uuid.UUID{}, nil
-	}
-
-	id, err := uuid.Parse(val)
-	if err != nil {
-		return uuid.UUID{}, fmt.Errorf("невилдный %s", val)
-	}
-	return id, nil
-}
-
-func parseTime(query url.Values, key string) (time.Time, error) {
-	t, err := time.Parse("2006-01-02", query.Get(key))
-	if err != nil {
-		return time.Time{}, err
-	}
-
-	return t, nil
-}
diff --git a/internal/delivery/http/helpers.go b/internal/delivery/http/helpers.go
new file mode 100644
index 0000000..da4dd04
--- /dev/null
+++ b/internal/delivery/http/helpers.go
@@ -0,0 +1,217 @@
+package handlers
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"processing/internal/domain"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+func newTransactionFilter(query url.Values) (*domain.TransactionFilter, error) {
+	senderID, err := parseUUID(query, "sender_id")
+	if err != nil {
+		return nil, err
+	}
+	receiverID, err := parseUUID(query, "receiver_id")
+	if err != nil {
+		return nil, err
+	}
+
+	minAmount := query.Get("min_amount")
+	maxAmount := query.Get("max_amount")
+
+	limit, err := strconv.Atoi(query.Get("limit"))
+	if err != nil {
+		return nil, fmt.Errorf("невалидный limit: %w", err)
+	}
+	offset, err := strconv.Atoi(query.Get("offset"))
+	if err != nil {
+		return nil, fmt.Errorf("невалидный offset: %w", err)
+	}
+
+	from, err := parseTime(query, "from")
+	if err != nil {
+		return nil, err
+	}
+
+	to, err := parseTime(query, "to")
+	if err != nil {
+		return nil, err
+	}
+
+	return &domain.TransactionFilter{
+		SenderID:   senderID,
+		ReceiverID: receiverID,
+		MinAmount:  minAmount,
+		MaxAmount:  maxAmount,
+		From:       from,
+		To:         to,
+		Limit:      limit,
+		Offset:     offset,
+	}, nil
+}
+
+func parseUUID(query url.Values, key string) (uuid.UUID, error) {
+	val := query.Get(key)
+	if val == "" {
+		return uuid.UUID{}, nil
+	}
+
+	id, err := uuid.Parse(val)
+	if err != nil {
+		return uuid.UUID{}, fmt.Errorf("невилдный %s", val)
+	}
+	return id, nil
+}
+
+func parseTime(query url.Values, key string) (time.Time, error) {
+	val := query.Get(key)
+	if val == "" {
+		return time.Time{}, nil
+	}
+
+	t, err := time.Parse("2006-01-02", val)
+	if err != nil {
+		return time.Time{}, fmt.Errorf("невалидная дата %s: %w", key, err)
+	}
+
+	return t, nil
+}
+
+func status(id int) string {
+	m := map[int]string{
+		200: "OK",
+		400: "StatusBadRequest",
+		401: "Unauthorized",
+		403: "Forbidden",
+		404: "StatusNotFound",
+		429: "too many requests",
+		500: "internal server error",
+	}
+	value, _ := m[id]
+	return value
+}
+
+// writeError пишет ошибку клиенту.
+// flag:  1 - полная ошибка, любой другой - только часть
+func writeError(w http.ResponseWriter, code int, err error, flag int) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(code)
+
+	if flag == 1 {
+		json.NewEncoder(w).Encode(map[string]string{
+			"error":   status(code),
+			"message": err.Error(),
+		})
+		return
+	}
+	json.NewEncoder(w).Encode(map[string]string{"error": status(code)})
+}
+
+func writeJSON(w http.ResponseWriter, code int, v any) error {
+	var buf bytes.Buffer
+	if err := json.NewEncoder(&buf).Encode(v); err != nil {
+		w.Header().Add("Content-Type", "application/json")
+		w.WriteHeader(http.StatusInternalServerError)
+		return err
+	}
+	w.Header().Add("Content-Type", "application/json")
+	w.WriteHeader(code)
+	_, err := buf.WriteTo(w)
+	return err
+}
+
+func setAuthCookie(w http.ResponseWriter, path, name, token string, maxage int) {
+	http.SetCookie(w, &http.Cookie{
+		Name:     name,
+		Value:    token,
+		Path:     path,
+		HttpOnly: true,
+		Secure:   true,
+		SameSite: http.SameSiteStrictMode,
+		MaxAge:   maxage,
+	})
+}
+
+func validateLogin(w http.ResponseWriter, data *AuthDTO) bool {
+	data.Email = strings.TrimSpace(data.Email)
+
+	if data.Email == "" {
+		http.Error(w, "поле с почтой не может быть пустым", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	if data.Password == "" {
+		http.Error(w, "поле с паролем не может быть пустым", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	regmail := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`
+	reg := regexp.MustCompile(regmail)
+	if !reg.MatchString(data.Email) {
+		http.Error(
+			w,
+			"Пожалуйста, введите корректный адрес электронной почты (например, example@mail.com)",
+			http.StatusUnprocessableEntity,
+		)
+		return false
+	}
+
+	if len(data.Password) < 8 {
+		http.Error(w, "длина пароля не может быть меньше 8 символов", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	return true
+}
+
+func validateRegister(w http.ResponseWriter, data *AuthDTO) bool {
+	data.Email = strings.TrimSpace(data.Email)
+	data.Name = strings.TrimSpace(data.Name)
+
+	if data.Name == "" {
+		http.Error(w, "поле с именем не может быть пустым", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	if data.Email == "" {
+		http.Error(w, "поле с почтой не может быть пустым", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	if data.Password == "" {
+		http.Error(w, "поле с паролем не может быть пустым", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	if len(data.Name) < 3 {
+		http.Error(w, "имя не может быть меньше 3 букв", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	regmail := `^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$`
+	reg := regexp.MustCompile(regmail)
+	if !reg.MatchString(data.Email) {
+		http.Error(
+			w,
+			"Пожалуйста, введите корректный адрес электронной почты (например, example@mail.com)",
+			http.StatusUnprocessableEntity,
+		)
+		return false
+	}
+
+	if len(data.Password) < 8 {
+		http.Error(w, "длина пароля не может быть меньше 8 символов", http.StatusUnprocessableEntity)
+		return false
+	}
+
+	return true
+}
diff --git a/internal/delivery/http/jwt/.env.example b/internal/delivery/http/jwt/.env.example
new file mode 100644
index 0000000..22e1afd
--- /dev/null
+++ b/internal/delivery/http/jwt/.env.example
@@ -0,0 +1,3 @@
+#ключи для подписи токенов 
+accessSecretKey = 
+refreshSecretKey = 
\ No newline at end of file
diff --git a/internal/delivery/http/jwt/.gitignore b/internal/delivery/http/jwt/.gitignore
new file mode 100644
index 0000000..2eea525
--- /dev/null
+++ b/internal/delivery/http/jwt/.gitignore
@@ -0,0 +1 @@
+.env
\ No newline at end of file
diff --git a/internal/delivery/http/jwt/jwt.go b/internal/delivery/http/jwt/jwt.go
new file mode 100644
index 0000000..bd1ffa2
--- /dev/null
+++ b/internal/delivery/http/jwt/jwt.go
@@ -0,0 +1,132 @@
+package jwtLayer
+
+import (
+	"errors"
+	"fmt"
+	"os"
+	"processing/internal/domain"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/google/uuid"
+)
+
+const (
+	AccessTokenDuration  = 15 * time.Minute
+	RefreshTokenDuration = 7 * 24 * time.Hour
+)
+
+func GenerateTokenPair(userID string, role string) (*domain.TokenPair, error) {
+	accessSecretKey := os.Getenv("accessSecretKey")
+	refreshSecretKey := os.Getenv("refreshSecretKey")
+
+	if accessSecretKey == "" || refreshSecretKey == "" {
+		return nil, errors.New("секретные ключи не установлены в переменных окружения")
+	}
+
+	now := time.Now()
+	accessExpiresAt := now.Add(AccessTokenDuration)
+	refreshExpiresAt := now.Add(RefreshTokenDuration)
+
+	accessClaims := domain.AccessClaims{
+		UserID: userID,
+		Role:   role,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ExpiresAt: jwt.NewNumericDate(accessExpiresAt),
+			IssuedAt:  jwt.NewNumericDate(now),
+			Issuer:    "my-app",
+		},
+	}
+	accessToken := jwt.NewWithClaims(jwt.SigningMethodHS256, accessClaims)
+	accessSigned, err := accessToken.SignedString([]byte(accessSecretKey))
+	if err != nil {
+		return nil, fmt.Errorf("ошибка создания access token: %w", err)
+	}
+
+	jti, err := uuid.NewRandom()
+	if err != nil {
+		return nil, fmt.Errorf("ошибка генерации JTI: %w", err)
+	}
+
+	refreshClaims := domain.RefreshClaims{
+		UserID: userID,
+		RegisteredClaims: jwt.RegisteredClaims{
+			ID:        jti.String(),
+			ExpiresAt: jwt.NewNumericDate(refreshExpiresAt),
+			IssuedAt:  jwt.NewNumericDate(now),
+			Issuer:    "my-app",
+		},
+	}
+	refreshToken := jwt.NewWithClaims(jwt.SigningMethodHS256, refreshClaims)
+	refreshSigned, err := refreshToken.SignedString([]byte(refreshSecretKey))
+	if err != nil {
+		return nil, fmt.Errorf("ошибка создания refresh token: %w", err)
+	}
+
+	return &domain.TokenPair{
+		AccessToken:  accessSigned,
+		RefreshToken: refreshSigned,
+		ExpiresIn:    int64(AccessTokenDuration.Seconds()),
+		JTI:          jti.String(),
+		ExpiresAt:    refreshExpiresAt,
+	}, nil
+}
+
+func ValidateAccessToken(tokenString string) (*domain.AccessClaims, error) {
+	accessSecretKey := os.Getenv("accessSecretKey")
+
+	token, err := jwt.ParseWithClaims(
+		tokenString, &domain.AccessClaims{},
+		func(t *jwt.Token) (interface{}, error) {
+			if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
+				return nil, fmt.Errorf("неверный алгоритм: %v", t.Header["alg"])
+			}
+			return []byte(accessSecretKey), nil
+		},
+	)
+	if err != nil {
+		if errors.Is(err, jwt.ErrTokenExpired) {
+			return nil, errors.New("истекший токен")
+		} else if errors.Is(err, jwt.ErrTokenSignatureInvalid) {
+			return nil, errors.New("подпись неверна")
+		}
+		return nil, fmt.Errorf("парсинг jwt токена: %w", err)
+	}
+
+	claims, ok := token.Claims.(*domain.AccessClaims)
+	if !ok {
+		return nil, errors.New("невалидные claims")
+	}
+
+	return claims, nil
+}
+
+func ValidateRefreshToken(tokenString string) (*domain.RefreshClaims, error) {
+	refreshSecretKey := os.Getenv("refreshSecretKey")
+
+	token, err := jwt.ParseWithClaims(
+		tokenString,
+		&domain.RefreshClaims{},
+		func(t *jwt.Token) (interface{}, error) {
+			if _, ok := t.Method.(*jwt.SigningMethodHMAC); !ok {
+				return nil, fmt.Errorf("невалидный алгоритм: %v", t.Header["alg"])
+			}
+			return []byte(refreshSecretKey), nil
+		},
+	)
+	if err != nil {
+		if errors.Is(err, jwt.ErrTokenExpired) {
+			return nil, errors.New("истекший токен")
+		} else if errors.Is(err, jwt.ErrTokenSignatureInvalid) {
+			return nil, errors.New("подпись неверна")
+		}
+		return nil, fmt.Errorf("парсинг jwt токена: %w", err)
+	}
+
+	claims, ok := token.Claims.(*domain.RefreshClaims)
+	if !ok {
+		return nil, errors.New("невалидные claims")
+	}
+
+	return claims, nil
+}
diff --git a/internal/delivery/http/middleware/middleware.go b/internal/delivery/http/middleware/middleware.go
new file mode 100644
index 0000000..1af5290
--- /dev/null
+++ b/internal/delivery/http/middleware/middleware.go
@@ -0,0 +1,57 @@
+package middleware
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"net/http"
+	jwtLayer "processing/internal/delivery/http/jwt"
+	"processing/internal/domain"
+	"strings"
+)
+
+func AuthMiddleware(next http.Handler) http.Handler {
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		claims, err := validateToken(r)
+		if err != nil {
+			http.Error(w, err.Error(), http.StatusUnauthorized)
+			return
+		}
+
+		ctx := context.WithValue(r.Context(), "user_id", claims.UserID)
+		ctx = context.WithValue(ctx, "role", claims.Role)
+		next.ServeHTTP(w, r.WithContext(ctx))
+	})
+}
+
+func validateToken(r *http.Request) (*domain.AccessClaims, error) {
+	var token string
+	authHeader := r.Header.Get("Authorization")
+	if authHeader != "" {
+		if !strings.HasPrefix(authHeader, "Bearer ") {
+			return nil, errors.New("неверный формат authorization header")
+		}
+		token = strings.TrimPrefix(authHeader, "Bearer ")
+	} else {
+		cookie, err := r.Cookie("access_token")
+		if err != nil {
+			return nil, errors.New("токен отсутствует")
+		}
+		token = cookie.Value
+	}
+
+	if token == "" {
+		return nil, errors.New("токен пустой")
+	}
+
+	claims, err := jwtLayer.ValidateAccessToken(token)
+	if err != nil {
+		return nil, fmt.Errorf("невалидный токен: %w", err)
+	}
+
+	if claims.UserID == "" {
+		return nil, errors.New("user_id отсутствует в токене")
+	}
+
+	return claims, nil
+}
diff --git a/internal/delivery/http/mocks/AccountsUsecase.go b/internal/delivery/http/mocks/AccountsUsecase.go
new file mode 100644
index 0000000..56ea0cc
--- /dev/null
+++ b/internal/delivery/http/mocks/AccountsUsecase.go
@@ -0,0 +1,116 @@
+// Code generated by mockery v2.53.6. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+	domain "processing/internal/domain"
+
+	mock "github.com/stretchr/testify/mock"
+
+	uuid "github.com/google/uuid"
+)
+
+// AccountsUsecase is an autogenerated mock type for the AccountsUsecase type
+type AccountsUsecase struct {
+	mock.Mock
+}
+
+// Create provides a mock function with given fields: ctx, acc, ip
+func (_m *AccountsUsecase) Create(ctx context.Context, acc *domain.Account, ip string) error {
+	ret := _m.Called(ctx, acc, ip)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Create")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context, *domain.Account, string) error); ok {
+		r0 = rf(ctx, acc, ip)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// GetAccount provides a mock function with given fields: ctx, id
+func (_m *AccountsUsecase) GetAccount(ctx context.Context, id uuid.UUID) (*domain.Account, error) {
+	ret := _m.Called(ctx, id)
+
+	if len(ret) == 0 {
+		panic("no return value specified for GetAccount")
+	}
+
+	var r0 *domain.Account
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID) (*domain.Account, error)); ok {
+		return rf(ctx, id)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID) *domain.Account); ok {
+		r0 = rf(ctx, id)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*domain.Account)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, uuid.UUID) error); ok {
+		r1 = rf(ctx, id)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// TransactionHistory provides a mock function with given fields: ctx, accountID, limit, offset
+func (_m *AccountsUsecase) TransactionHistory(ctx context.Context, accountID uuid.UUID, limit int, offset int) (int, []domain.Transaction, error) {
+	ret := _m.Called(ctx, accountID, limit, offset)
+
+	if len(ret) == 0 {
+		panic("no return value specified for TransactionHistory")
+	}
+
+	var r0 int
+	var r1 []domain.Transaction
+	var r2 error
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, int, int) (int, []domain.Transaction, error)); ok {
+		return rf(ctx, accountID, limit, offset)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, int, int) int); ok {
+		r0 = rf(ctx, accountID, limit, offset)
+	} else {
+		r0 = ret.Get(0).(int)
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, uuid.UUID, int, int) []domain.Transaction); ok {
+		r1 = rf(ctx, accountID, limit, offset)
+	} else {
+		if ret.Get(1) != nil {
+			r1 = ret.Get(1).([]domain.Transaction)
+		}
+	}
+
+	if rf, ok := ret.Get(2).(func(context.Context, uuid.UUID, int, int) error); ok {
+		r2 = rf(ctx, accountID, limit, offset)
+	} else {
+		r2 = ret.Error(2)
+	}
+
+	return r0, r1, r2
+}
+
+// NewAccountsUsecase creates a new instance of AccountsUsecase. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewAccountsUsecase(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *AccountsUsecase {
+	mock := &AccountsUsecase{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}
diff --git a/internal/delivery/http/mocks/AuthUseCase.go b/internal/delivery/http/mocks/AuthUseCase.go
new file mode 100644
index 0000000..3074f09
--- /dev/null
+++ b/internal/delivery/http/mocks/AuthUseCase.go
@@ -0,0 +1,157 @@
+// Code generated by mockery v2.53.6. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+	domain "processing/internal/domain"
+
+	mock "github.com/stretchr/testify/mock"
+
+	uuid "github.com/google/uuid"
+)
+
+// AuthUseCase is an autogenerated mock type for the AuthUseCase type
+type AuthUseCase struct {
+	mock.Mock
+}
+
+// Login provides a mock function with given fields: ctx, email, password, ip
+func (_m *AuthUseCase) Login(ctx context.Context, email string, password string, ip string) (*domain.TokenPair, error) {
+	ret := _m.Called(ctx, email, password, ip)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Login")
+	}
+
+	var r0 *domain.TokenPair
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, string, string, string) (*domain.TokenPair, error)); ok {
+		return rf(ctx, email, password, ip)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, string, string, string) *domain.TokenPair); ok {
+		r0 = rf(ctx, email, password, ip)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*domain.TokenPair)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, string, string, string) error); ok {
+		r1 = rf(ctx, email, password, ip)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Logout provides a mock function with given fields: ctx, refreshToken, ip
+func (_m *AuthUseCase) Logout(ctx context.Context, refreshToken string, ip string) error {
+	ret := _m.Called(ctx, refreshToken, ip)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Logout")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context, string, string) error); ok {
+		r0 = rf(ctx, refreshToken, ip)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// LogoutAll provides a mock function with given fields: ctx, userID
+func (_m *AuthUseCase) LogoutAll(ctx context.Context, userID uuid.UUID) error {
+	ret := _m.Called(ctx, userID)
+
+	if len(ret) == 0 {
+		panic("no return value specified for LogoutAll")
+	}
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID) error); ok {
+		r0 = rf(ctx, userID)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
+// Refresh provides a mock function with given fields: ctx, refreshToken, ip
+func (_m *AuthUseCase) Refresh(ctx context.Context, refreshToken string, ip string) (*domain.TokenPair, error) {
+	ret := _m.Called(ctx, refreshToken, ip)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Refresh")
+	}
+
+	var r0 *domain.TokenPair
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, string, string) (*domain.TokenPair, error)); ok {
+		return rf(ctx, refreshToken, ip)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, string, string) *domain.TokenPair); ok {
+		r0 = rf(ctx, refreshToken, ip)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*domain.TokenPair)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, string, string) error); ok {
+		r1 = rf(ctx, refreshToken, ip)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Register provides a mock function with given fields: ctx, email, password, name, ip
+func (_m *AuthUseCase) Register(ctx context.Context, email string, password string, name string, ip string) (*domain.Account, error) {
+	ret := _m.Called(ctx, email, password, name, ip)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Register")
+	}
+
+	var r0 *domain.Account
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, string, string, string, string) (*domain.Account, error)); ok {
+		return rf(ctx, email, password, name, ip)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, string, string, string, string) *domain.Account); ok {
+		r0 = rf(ctx, email, password, name, ip)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).(*domain.Account)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, string, string, string, string) error); ok {
+		r1 = rf(ctx, email, password, name, ip)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// NewAuthUseCase creates a new instance of AuthUseCase. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewAuthUseCase(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *AuthUseCase {
+	mock := &AuthUseCase{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}
diff --git a/internal/delivery/http/mocks/TransactionUsecase.go b/internal/delivery/http/mocks/TransactionUsecase.go
new file mode 100644
index 0000000..fb46819
--- /dev/null
+++ b/internal/delivery/http/mocks/TransactionUsecase.go
@@ -0,0 +1,118 @@
+// Code generated by mockery v2.53.6. DO NOT EDIT.
+
+package mocks
+
+import (
+	context "context"
+	decimal "processing/internal/decimal"
+	domain "processing/internal/domain"
+
+	mock "github.com/stretchr/testify/mock"
+
+	uuid "github.com/google/uuid"
+)
+
+// TransactionUsecase is an autogenerated mock type for the TransactionUsecase type
+type TransactionUsecase struct {
+	mock.Mock
+}
+
+// GetTransaction provides a mock function with given fields: ctx, transactionID, userID, key
+func (_m *TransactionUsecase) GetTransaction(ctx context.Context, transactionID uuid.UUID, userID uuid.UUID, key string) (domain.Transaction, error) {
+	ret := _m.Called(ctx, transactionID, userID, key)
+
+	if len(ret) == 0 {
+		panic("no return value specified for GetTransaction")
+	}
+
+	var r0 domain.Transaction
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, uuid.UUID, string) (domain.Transaction, error)); ok {
+		return rf(ctx, transactionID, userID, key)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, uuid.UUID, string) domain.Transaction); ok {
+		r0 = rf(ctx, transactionID, userID, key)
+	} else {
+		r0 = ret.Get(0).(domain.Transaction)
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, uuid.UUID, uuid.UUID, string) error); ok {
+		r1 = rf(ctx, transactionID, userID, key)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// GetTransactionFilter provides a mock function with given fields: ctx, t, userID, key
+func (_m *TransactionUsecase) GetTransactionFilter(ctx context.Context, t *domain.TransactionFilter, userID uuid.UUID, key string) ([]domain.Transaction, error) {
+	ret := _m.Called(ctx, t, userID, key)
+
+	if len(ret) == 0 {
+		panic("no return value specified for GetTransactionFilter")
+	}
+
+	var r0 []domain.Transaction
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, *domain.TransactionFilter, uuid.UUID, string) ([]domain.Transaction, error)); ok {
+		return rf(ctx, t, userID, key)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, *domain.TransactionFilter, uuid.UUID, string) []domain.Transaction); ok {
+		r0 = rf(ctx, t, userID, key)
+	} else {
+		if ret.Get(0) != nil {
+			r0 = ret.Get(0).([]domain.Transaction)
+		}
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, *domain.TransactionFilter, uuid.UUID, string) error); ok {
+		r1 = rf(ctx, t, userID, key)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// Transfer provides a mock function with given fields: ctx, sender_id, receiver_id, key, amount
+func (_m *TransactionUsecase) Transfer(ctx context.Context, sender_id uuid.UUID, receiver_id uuid.UUID, key string, amount decimal.Decimal) (string, error) {
+	ret := _m.Called(ctx, sender_id, receiver_id, key, amount)
+
+	if len(ret) == 0 {
+		panic("no return value specified for Transfer")
+	}
+
+	var r0 string
+	var r1 error
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, uuid.UUID, string, decimal.Decimal) (string, error)); ok {
+		return rf(ctx, sender_id, receiver_id, key, amount)
+	}
+	if rf, ok := ret.Get(0).(func(context.Context, uuid.UUID, uuid.UUID, string, decimal.Decimal) string); ok {
+		r0 = rf(ctx, sender_id, receiver_id, key, amount)
+	} else {
+		r0 = ret.Get(0).(string)
+	}
+
+	if rf, ok := ret.Get(1).(func(context.Context, uuid.UUID, uuid.UUID, string, decimal.Decimal) error); ok {
+		r1 = rf(ctx, sender_id, receiver_id, key, amount)
+	} else {
+		r1 = ret.Error(1)
+	}
+
+	return r0, r1
+}
+
+// NewTransactionUsecase creates a new instance of TransactionUsecase. It also registers a testing interface on the mock and a cleanup function to assert the mocks expectations.
+// The first argument is typically a *testing.T value.
+func NewTransactionUsecase(t interface {
+	mock.TestingT
+	Cleanup(func())
+}) *TransactionUsecase {
+	mock := &TransactionUsecase{}
+	mock.Mock.Test(t)
+
+	t.Cleanup(func() { mock.AssertExpectations(t) })
+
+	return mock
+}
diff --git a/internal/delivery/http/transaction_handler.go b/internal/delivery/http/transaction_handler.go
index 23fe5a6..174fb33 100644
--- a/internal/delivery/http/transaction_handler.go
+++ b/internal/delivery/http/transaction_handler.go
@@ -1,119 +1,149 @@
-package handlers
-
-import (
-	"encoding/json"
-	"net/http"
-	"processing/internal/decimal"
-	"processing/internal/usecase"
-
-	"github.com/google/uuid"
-)
-
-type handler struct {
-	service *usecase.TransferService
-}
-
-func NewHandler(transferService *usecase.TransferService) *handler {
-	return &handler{service: transferService}
-}
-
-type transferDTO struct {
-	Sender_id   uuid.UUID `json:"sender_id"`
-	Receiver_id uuid.UUID `json:"receiver_id"`
-	Amount      string    `json:"amount"`
-}
-
-// Transfer хэндлер для отправки транзакции платежа
-// POST /transactions
-func (h *handler) Transfer(w http.ResponseWriter, r *http.Request) {
-	defer r.Body.Close()
-	w.Header().Set("Content-Type", "application/json")
-	ctx := r.Context()
-
-	key := r.Header.Get("Idempotency-Key")
-	var dto transferDTO
-	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
-		writeError(w, 400, err, 0)
-		return
-	}
-
-	amount, err := decimal.NewFromString(dto.Amount)
-	if err != nil {
-		writeError(w, 500, err, 0)
-		return
-	}
-
-	if err := h.service.Transfer(ctx, dto.Sender_id, dto.Receiver_id, key, amount); err != nil {
-		writeError(w, 500, err, 1)
-		return
-	}
-}
-
-type transactionDTO struct {
-	UserID         uuid.UUID `json:"user_id"`
-	IdempotencyKEY string    `json:"Idempotency-Key"`
-}
-
-// получение транзакции по id
-// GET /transactions/:id
-func (h *handler) GetTransaction(w http.ResponseWriter, r *http.Request) {
-	defer r.Body.Close()
-	w.Header().Set("Content-Type", "application/json")
-	id, err := uuid.Parse(r.PathValue("id"))
-	if err != nil {
-		writeError(w, 400, err, 0)
-		return
-	}
-
-	var dto transactionDTO
-	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
-		writeError(w, 500, err, 0)
-		return
-	}
-	ctx := r.Context()
-
-	transaction, err := h.service.GetTransaction(ctx, id, dto.UserID, dto.IdempotencyKEY)
-	if err != nil {
-		writeError(w, 500, err, 1)
-		return
-	}
-
-	if err := json.NewEncoder(w).Encode(transaction); err != nil {
-		writeError(w, 500, err, 0)
-		return
-	}
-}
-
-// выводит транзакции по фильтрам
-// Примеры запросов:
-// GET /transactions?sender_id=uuid&from=2024-01-01&limit=20&offset=0
-// GET /transactions?receiver_id=uuid&min_amount=1000
-func (h *handler) TransactionFilter(w http.ResponseWriter, r *http.Request) {
-	defer r.Body.Close()
-	w.Header().Set("Content-Type", "application/json")
-
-	var dto transactionDTO
-	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
-		writeError(w, 400, err, 0)
-		return
-	}
-
-	ctx := r.Context()
-	query := r.URL.Query()
-	filter, err := newTransactionFilter(query)
-	if err != nil {
-		writeError(w, 400, err, 1)
-		return
-	}
-
-	transactions, err := h.service.GetTransactionFilter(ctx, filter, dto.UserID, dto.IdempotencyKEY)
-	if err != nil {
-		writeError(w, 500, err, 1)
-		return
-	}
-
-	if err := json.NewEncoder(w).Encode(transactions); err != nil {
-		writeError(w, 500, err, 0)
-		return
-	}
-}
+package handlers
+
+import (
+	"encoding/json"
+	"errors"
+	"net/http"
+	"processing/internal/decimal"
+	"processing/internal/domain"
+
+	"github.com/google/uuid"
+)
+
+type transferDTO struct {
+	Receiver_id uuid.UUID `json:"receiver_id"`
+	Amount      string    `json:"amount"`
+}
+
+// Transfer хэндлер для оплаты
+// POST /transactions
+func (h *handler) Transfer(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	w.Header().Set("Content-Type", "application/json")
+	ctx := r.Context()
+
+	// Get user_id from context (middleware)
+	ctxUserID, ok := ctx.Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusUnauthorized, errors.New("user_id не найден в контексте"), 0)
+		return
+	}
+
+	senderID, err := uuid.Parse(ctxUserID)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	key := r.Header.Get("Idempotency-Key")
+	var dto transferDTO
+	if err := json.NewDecoder(r.Body).Decode(&dto); err != nil {
+		writeError(w, 400, err, 0)
+		return
+	}
+
+	amount, err := decimal.NewFromString(dto.Amount)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	transactionID, err := h.ts.Transfer(ctx, senderID, dto.Receiver_id, key, amount)
+	if err != nil {
+		if errors.Is(err, domain.ErrSameAccount) || errors.Is(err, domain.ErrInvalidAmount) || errors.Is(err, domain.ErrInsufficientFunds) || errors.Is(err, domain.ErrReceiverAccountNotFound) {
+			writeError(w, http.StatusBadRequest, err, 1)
+			return
+		}
+		writeError(w, http.StatusInternalServerError, err, 1)
+		return
+	}
+
+	if err := writeJSON(w, http.StatusCreated, map[string]string{"transaction_id": transactionID}); err != nil {
+		h.log.Error("[transfer] json encode", "err", err)
+	}
+}
+
+type transactionDTO struct {
+	UserID         uuid.UUID `json:"user_id"`
+	IdempotencyKEY string    `json:"Idempotency-Key"`
+}
+
+// получение транзакции по id
+// GET /transactions/:id
+func (h *handler) GetTransaction(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	id, err := uuid.Parse(r.PathValue("id"))
+	w.Header().Set("Content-Type", "application/json")
+	if err != nil {
+		writeError(w, 400, err, 1)
+		return
+	}
+
+	ctx := r.Context()
+	ctxUserID, ok := ctx.Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusUnauthorized, errors.New("user_id не найден в контексте"), 0)
+		return
+	}
+
+	userID, err := uuid.Parse(ctxUserID)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	key := r.Header.Get("Idempotency-Key")
+	transaction, err := h.ts.GetTransaction(ctx, id, userID, key)
+	if err != nil {
+		if errors.Is(err, domain.ErrAccessDenied) {
+			writeError(w, http.StatusNotFound, err, 0)
+			return
+		}
+		writeError(w, http.StatusInternalServerError, err, 1)
+		return
+	}
+
+	if err := writeJSON(w, http.StatusOK, transaction); err != nil {
+		h.log.Error("[GetTransaction] json encode", "err", err)
+	}
+}
+
+// выводит транзакции по фильтрам
+// Примеры запросов:
+// GET /transactions?sender_id=uuid&from=2024-01-01&limit=20&offset=0
+// GET /transactions?receiver_id=uuid&min_amount=1000
+func (h *handler) TransactionFilter(w http.ResponseWriter, r *http.Request) {
+	defer r.Body.Close()
+	w.Header().Set("Content-Type", "application/json")
+
+	ctx := r.Context()
+	ctxUserID, ok := ctx.Value("user_id").(string)
+	if !ok {
+		writeError(w, http.StatusUnauthorized, errors.New("user_id не найден в контексте"), 0)
+		return
+	}
+
+	userID, err := uuid.Parse(ctxUserID)
+	if err != nil {
+		writeError(w, http.StatusBadRequest, err, 0)
+		return
+	}
+
+	key := r.Header.Get("Idempotency-Key")
+	query := r.URL.Query()
+	filter, err := newTransactionFilter(query)
+	if err != nil {
+		writeError(w, 400, err, 1)
+		return
+	}
+
+	transactions, err := h.ts.GetTransactionFilter(ctx, filter, userID, key)
+	if err != nil {
+		writeError(w, 500, err, 1)
+		return
+	}
+
+	if err := writeJSON(w, http.StatusOK, transactions); err != nil {
+		h.log.Error("[TransactionFilter] json encode", "err", err)
+	}
+}
diff --git a/internal/delivery/http/transaction_test.go b/internal/delivery/http/transaction_test.go
new file mode 100644
index 0000000..4d8b6b5
--- /dev/null
+++ b/internal/delivery/http/transaction_test.go
@@ -0,0 +1,427 @@
+package handlers
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"processing/internal/decimal"
+	"processing/internal/delivery/http/mocks"
+	"processing/internal/domain"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/mock"
+	"github.com/stretchr/testify/require"
+)
+
+func TestTransactionTransferHandler(t *testing.T) {
+	testSenderID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174000")
+
+	tests := []struct {
+		name               string
+		requestBody        interface{}
+		idempotencyKey     string
+		setupMock          func(*mocks.TransactionUsecase, uuid.UUID, uuid.UUID, decimal.Decimal)
+		expectedStatusCode int
+		expectError        bool
+	}{
+		{
+			name: "успешный перевод",
+			requestBody: transferDTO{
+				Receiver_id: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001"),
+				Amount:      "500.50",
+			},
+			idempotencyKey: "test-key-123",
+			setupMock: func(m *mocks.TransactionUsecase, senderID, receiverID uuid.UUID, amount decimal.Decimal) {
+				m.On("Transfer",
+					mock.Anything,
+					senderID,
+					receiverID,
+					"test-key-123",
+					amount,
+				).Return("test-transaction-id", nil).Once()
+			},
+			expectedStatusCode: http.StatusCreated,
+			expectError:        false,
+		},
+		{
+			name:        "невалидный JSON",
+			requestBody: `{"invalid json`,
+			setupMock: func(m *mocks.TransactionUsecase, senderID, receiverID uuid.UUID, amount decimal.Decimal) {
+				// не вызываем Transfer, т.к. ошибка парсинга раньше
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name: "невалидный amount формат",
+			requestBody: transferDTO{
+				Receiver_id: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001"),
+				Amount:      "invalid-amount",
+			},
+			idempotencyKey: "test-key-456",
+			setupMock: func(m *mocks.TransactionUsecase, senderID, receiverID uuid.UUID, amount decimal.Decimal) {
+				// не вызываем Transfer, т.к. ошибка парсинга amount
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name: "ошибка от usecase",
+			requestBody: transferDTO{
+				Receiver_id: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001"),
+				Amount:      "1000.00",
+			},
+			idempotencyKey: "test-key-789",
+			setupMock: func(m *mocks.TransactionUsecase, senderID, receiverID uuid.UUID, amount decimal.Decimal) {
+				m.On("Transfer",
+					mock.Anything,
+					senderID,
+					receiverID,
+					"test-key-789",
+					amount,
+				).Return("", errors.New("недостаточно средств")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+		{
+			name: "пустой idempotency key",
+			requestBody: transferDTO{
+				Receiver_id: uuid.MustParse("123e4567-e89b-12d3-a456-426614174001"),
+				Amount:      "100.00",
+			},
+			idempotencyKey: "",
+			setupMock: func(m *mocks.TransactionUsecase, senderID, receiverID uuid.UUID, amount decimal.Decimal) {
+				m.On("Transfer",
+					mock.Anything,
+					senderID,
+					receiverID,
+					"",
+					amount,
+				).Return("test-transaction-id-2", nil).Once()
+			},
+			expectedStatusCode: http.StatusCreated,
+			expectError:        false,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockUsecase := mocks.NewTransactionUsecase(t)
+			mockAccountUsecase := mocks.NewAccountsUsecase(t)
+			mockAuthUsecase := mocks.NewAuthUseCase(t)
+			handler := NewHandler(mockUsecase, mockAccountUsecase, mockAuthUsecase, nil)
+
+			var receiverID uuid.UUID
+			var amount decimal.Decimal
+			if dto, ok := tt.requestBody.(transferDTO); ok {
+				receiverID = dto.Receiver_id
+				amount, _ = decimal.NewFromString(dto.Amount)
+			}
+
+			tt.setupMock(mockUsecase, testSenderID, receiverID, amount)
+
+			var bodyBytes []byte
+			var err error
+			if strBody, ok := tt.requestBody.(string); ok {
+				bodyBytes = []byte(strBody)
+			} else {
+				bodyBytes, err = json.Marshal(tt.requestBody)
+				require.NoError(t, err)
+			}
+
+			req := httptest.NewRequest(http.MethodPost, "/transactions", bytes.NewReader(bodyBytes))
+			req.Header.Set("Content-Type", "application/json")
+			if tt.idempotencyKey != "" {
+				req.Header.Set("Idempotency-Key", tt.idempotencyKey)
+			}
+			ctx := context.WithValue(context.Background(), "user_id", testSenderID.String())
+			req = req.WithContext(ctx)
+			rr := httptest.NewRecorder()
+			handler.Transfer(rr, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rr.Code, "неожиданный статус код")
+			assert.Equal(t, "application/json", rr.Header().Get("Content-Type"))
+			if tt.expectError {
+				assert.NotEmpty(t, rr.Body.String(), "ожидался response body с ошибкой")
+			} else {
+				var resp map[string]string
+				err = json.Unmarshal(rr.Body.Bytes(), &resp)
+				assert.NoError(t, err)
+				assert.NotEmpty(t, resp["transaction_id"])
+			}
+		})
+		t.Log("\n\n\n")
+	}
+}
+
+func TestGetTransactionHandler(t *testing.T) {
+	validTransactionID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174000")
+	testUserID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174001")
+
+	tests := []struct {
+		name               string
+		transactionID      string
+		setupMock          func(*mocks.TransactionUsecase)
+		expectedStatusCode int
+		expectError        bool
+	}{
+		{
+			name:          "успешное получение транзакции",
+			transactionID: validTransactionID.String(),
+			setupMock: func(m *mocks.TransactionUsecase) {
+				amount, _ := decimal.NewFromString("500.50")
+				expectedTransaction := domain.Transaction{
+					ID:          validTransactionID,
+					Amount:      amount,
+					Sender_id:   testUserID,
+					Receiver_id: uuid.MustParse("123e4567-e89b-12d3-a456-426614174002"),
+					Status:      domain.StatusCompleted,
+					Created_at:  time.Now(),
+				}
+				m.On("GetTransaction",
+					mock.Anything,
+					validTransactionID,
+					testUserID,
+					"",
+				).Return(expectedTransaction, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+		},
+		{
+			name:          "невалидный UUID транзакции",
+			transactionID: "invalid-uuid",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				// не вызываем GetTransaction, т.к. ошибка парсинга UUID раньше
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name:          "транзакция не найдена",
+			transactionID: validTransactionID.String(),
+			setupMock: func(m *mocks.TransactionUsecase) {
+				m.On("GetTransaction",
+					mock.Anything,
+					validTransactionID,
+					testUserID,
+					"",
+				).Return(domain.Transaction{}, errors.New("транзакция не найдена")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+		{
+			name:          "доступ запрещен к чужой транзакции",
+			transactionID: validTransactionID.String(),
+			setupMock: func(m *mocks.TransactionUsecase) {
+				m.On("GetTransaction",
+					mock.Anything,
+					validTransactionID,
+					testUserID,
+					"",
+				).Return(domain.Transaction{}, domain.ErrAccessDenied).Once()
+			},
+			expectedStatusCode: http.StatusNotFound,
+			expectError:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockUsecase := mocks.NewTransactionUsecase(t)
+			mockAccountUsecase := mocks.NewAccountsUsecase(t)
+			mockAuthUsecae := mocks.NewAuthUseCase(t)
+			handler := NewHandler(mockUsecase, mockAccountUsecase, mockAuthUsecae, nil)
+
+			tt.setupMock(mockUsecase)
+
+			req := httptest.NewRequest(http.MethodGet, "/transactions/"+tt.transactionID, nil)
+			req.SetPathValue("id", tt.transactionID)
+			ctx := context.WithValue(context.Background(), "user_id", testUserID.String())
+			req = req.WithContext(ctx)
+
+			rr := httptest.NewRecorder()
+			handler.GetTransaction(rr, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rr.Code, "неожиданный статус код")
+			assert.Equal(t, "application/json", rr.Header().Get("Content-Type"))
+
+			if tt.expectError {
+				assert.NotEmpty(t, rr.Body.String(), "ожидался response body с ошибкой")
+			} else {
+				var response domain.Transaction
+				err := json.Unmarshal(rr.Body.Bytes(), &response)
+				assert.NoError(t, err, "ответ должен быть валидным JSON")
+			}
+		})
+	}
+}
+
+func TestTransactionFilterHandler(t *testing.T) {
+	testUserID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174001")
+	validSenderID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174002")
+	validReceiverID := uuid.MustParse("123e4567-e89b-12d3-a456-426614174003")
+	amount, _ := decimal.NewFromString("500.50")
+	amount2, _ := decimal.NewFromString("250")
+	tests := []struct {
+		name               string
+		queryParams        string
+		idempotencyKey     string
+		setupMock          func(*mocks.TransactionUsecase)
+		expectedStatusCode int
+		expectError        bool
+	}{
+		{
+			name:           "успешная фильтрация с sender_id",
+			queryParams:    "sender_id=" + validSenderID.String() + "&limit=10&offset=0",
+			idempotencyKey: "test-key-123",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				expectedTransactions := []domain.Transaction{
+					{
+						ID:          uuid.MustParse("123e4567-e89b-12d3-a456-426614174000"),
+						Amount:      amount,
+						Sender_id:   validSenderID,
+						Receiver_id: validReceiverID,
+						Status:      domain.StatusCompleted,
+						Created_at:  time.Now(),
+					},
+				}
+				m.On("GetTransactionFilter",
+					mock.Anything,
+					mock.MatchedBy(func(filter *domain.TransactionFilter) bool {
+						return filter.SenderID == validSenderID &&
+							filter.Limit == 10 &&
+							filter.Offset == 0
+					}),
+					testUserID,
+					"test-key-123",
+				).Return(expectedTransactions, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+		},
+		{
+			name:           "успешная фильтрация с receiver_id и датами",
+			queryParams:    "receiver_id=" + validReceiverID.String() + "&from=2024-01-01&to=2024-12-31&limit=20&offset=5",
+			idempotencyKey: "test-key-456",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				expectedTransactions := []domain.Transaction{}
+				m.On("GetTransactionFilter",
+					mock.Anything,
+					mock.MatchedBy(func(filter *domain.TransactionFilter) bool {
+						return filter.ReceiverID == validReceiverID &&
+							filter.Limit == 20 &&
+							filter.Offset == 5
+					}),
+					testUserID,
+					"test-key-456",
+				).Return(expectedTransactions, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+		},
+		{
+			name:           "фильтрация с min_amount и max_amount",
+			queryParams:    "min_amount=100.00&max_amount=1000.00&limit=15&offset=0",
+			idempotencyKey: "test-key-789",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				expectedTransactions := []domain.Transaction{
+					{
+						ID:          uuid.MustParse("123e4567-e89b-12d3-a456-426614174000"),
+						Amount:      amount2,
+						Sender_id:   validSenderID,
+						Receiver_id: validReceiverID,
+						Status:      domain.StatusCompleted,
+						Created_at:  time.Now(),
+					},
+				}
+				m.On("GetTransactionFilter",
+					mock.Anything,
+					mock.MatchedBy(func(filter *domain.TransactionFilter) bool {
+						return filter.MinAmount == "100.00" &&
+							filter.MaxAmount == "1000.00" &&
+							filter.Limit == 15 &&
+							filter.Offset == 0
+					}),
+					testUserID,
+					"test-key-789",
+				).Return(expectedTransactions, nil).Once()
+			},
+			expectedStatusCode: http.StatusOK,
+			expectError:        false,
+		},
+		{
+			name:        "невалидный limit параметр",
+			queryParams: "limit=invalid&offset=0",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				// не вызываем GetTransactionFilter, т.к. ошибка парсинга limit
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name:        "невалидный UUID в sender_id",
+			queryParams: "sender_id=invalid-uuid&limit=10&offset=0",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				// не вызываем GetTransactionFilter, т.к. ошибка парсинга UUID
+			},
+			expectedStatusCode: http.StatusBadRequest,
+			expectError:        true,
+		},
+		{
+			name:           "ошибка от usecase",
+			queryParams:    "sender_id=" + validSenderID.String() + "&limit=10&offset=0",
+			idempotencyKey: "test-key-777",
+			setupMock: func(m *mocks.TransactionUsecase) {
+				m.On("GetTransactionFilter",
+					mock.Anything,
+					mock.Anything,
+					testUserID,
+					"test-key-777",
+				).Return([]domain.Transaction{}, errors.New("database error")).Once()
+			},
+			expectedStatusCode: http.StatusInternalServerError,
+			expectError:        true,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			mockUsecase := mocks.NewTransactionUsecase(t)
+			mockAccountUsecase := mocks.NewAccountsUsecase(t)
+			mockAuthUsecae := mocks.NewAuthUseCase(t)
+			handler := NewHandler(mockUsecase, mockAccountUsecase, mockAuthUsecae, nil)
+
+			tt.setupMock(mockUsecase)
+
+			req := httptest.NewRequest(http.MethodGet, "/transactions?"+tt.queryParams, nil)
+			if tt.idempotencyKey != "" {
+				req.Header.Set("Idempotency-Key", tt.idempotencyKey)
+			}
+			ctx := context.WithValue(context.Background(), "user_id", testUserID.String())
+			req = req.WithContext(ctx)
+
+			rr := httptest.NewRecorder()
+			handler.TransactionFilter(rr, req)
+
+			assert.Equal(t, tt.expectedStatusCode, rr.Code, "неожиданный статус код")
+			assert.Equal(t, "application/json", rr.Header().Get("Content-Type"))
+
+			if tt.expectError {
+				assert.NotEmpty(t, rr.Body.String(), "ожидался response body с ошибкой")
+			} else {
+				var response []domain.Transaction
+				err := json.Unmarshal(rr.Body.Bytes(), &response)
+				assert.NoError(t, err, "ответ должен быть валидным JSON")
+			}
+		})
+	}
+}
diff --git a/internal/domain/account.go b/internal/domain/account.go
index 4188b5a..a37e6f2 100644
--- a/internal/domain/account.go
+++ b/internal/domain/account.go
@@ -1 +1,32 @@
-package domain
+package domain
+
+import (
+	"context"
+	"fmt"
+	"processing/internal/decimal"
+
+	"github.com/google/uuid"
+)
+
+type Account struct {
+	ID           uuid.UUID       `json:"id"`
+	Name         string          `json:"username"`
+	Email        string          `json:"email"`
+	Balance      decimal.Decimal `json:"balance"`
+	PasswordHash string          `json:"-"`
+	Role         string          `json:"role"`
+}
+
+func NewAccount(name string, balance decimal.Decimal) (*Account, error) {
+	id, err := uuid.NewUUID()
+	if err != nil {
+		return nil, fmt.Errorf("создание uuid: %w", err)
+	}
+	return &Account{ID: id, Name: name, Balance: balance}, nil
+}
+
+type AccountsUsecase interface {
+	Create(ctx context.Context, acc *Account, ip string) error
+	GetAccount(ctx context.Context, id uuid.UUID) (*Account, error)
+	TransactionHistory(ctx context.Context, accountID uuid.UUID, limit, offset int) (int, []Transaction, error)
+}
diff --git a/internal/domain/cache.go b/internal/domain/cache.go
index 921bd3e..f0b6be8 100644
--- a/internal/domain/cache.go
+++ b/internal/domain/cache.go
@@ -1,15 +1,13 @@
-package domain
-
-import (
-	"context"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-// Cache - рейтлимитит запросы пользователя
-// и кэширует запросы пользователей для последующей дедупликации
-type Cache interface {
-	CheckRateLimit(ctx context.Context, userID uuid.UUID) error
-	IdempotencyCheck(ctx context.Context, key string, limit int64, TTL time.Duration) error
-}
+package domain
+
+import (
+	"context"
+	"time"
+)
+
+// Cache - рейтлимитит запросы пользователя
+// и кэширует запросы пользователей для последующей дедупликации
+type Cache interface {
+	CheckRateLimit(ctx context.Context, id string) error
+	IdempotencyCheck(ctx context.Context, key string, TTL time.Duration) error
+}
diff --git a/internal/domain/errors.go b/internal/domain/errors.go
index 14ef62d..7a2a6c3 100644
--- a/internal/domain/errors.go
+++ b/internal/domain/errors.go
@@ -1,9 +1,22 @@
-package domain
-
-import "errors"
-
-var (
-	ErrInsufficientFunds = errors.New("недостаточно средств")
-	ErrInvalidAmount     = errors.New("сумма должна быть положительной")
-	ErrSameAccount       = errors.New("отправитель и получатель должны быть разными")
-)
+package domain
+
+import "errors"
+
+var (
+	ErrAccessDenied            = errors.New("доступ запрещен")
+	ErrInsufficientFunds       = errors.New("недостаточно средств")
+	ErrInvalidAmount           = errors.New("сумма должна быть положительной")
+	ErrSameAccount             = errors.New("отправитель и получатель должны быть разными")
+	ErrReceiverAccountNotFound = errors.New("receiver аккаунт не найден")
+	ErrAccountAlreadyExist     = errors.New("аккаунт уже существует")
+)
+
+var (
+	ErrSaveRefreshToken     = errors.New("ошибка сохранения рефреш токена")
+	ErrRefreshTokenNotFound = errors.New("refresh токен не найден")
+	ErrUserNotFound         = errors.New("связаннй с токеном юзер не найден")
+	ErrRefreshTokenRevoked  = errors.New("refresh токен отозван")
+	ErrRefreshTokenExpired  = errors.New("refresh токен истек")
+	ErrInvalidCredentials   = errors.New("неверные учетные данные")
+	ErrInvalidRefreshToken  = errors.New("невалидный refresh токен")
+)
diff --git a/internal/domain/jwt.go b/internal/domain/jwt.go
new file mode 100644
index 0000000..d036b61
--- /dev/null
+++ b/internal/domain/jwt.go
@@ -0,0 +1,44 @@
+package domain
+
+import (
+	"context"
+	"time"
+
+	"github.com/golang-jwt/jwt/v5"
+	"github.com/google/uuid"
+)
+
+type AuthUseCase interface {
+	Register(ctx context.Context, email, password, name string, ip string) (*Account, error)
+	Login(ctx context.Context, email, password string, ip string) (*TokenPair, error)
+	Refresh(ctx context.Context, refreshToken string, ip string) (*TokenPair, error)
+	Logout(ctx context.Context, refreshToken string, ip string) error
+	LogoutAll(ctx context.Context, userID uuid.UUID) error
+}
+
+// RefreshSession представляет сессию refresh токена в БД
+type RefreshSession struct {
+	UserID    uuid.UUID
+	Revoked   bool
+	ExpiresAt time.Time
+}
+
+// TokenPair пара токенов для клиента
+type TokenPair struct {
+	AccessToken  string    `json:"access_token"`
+	RefreshToken string    `json:"refresh_token"`
+	ExpiresIn    int64     `json:"expires_in"`
+	JTI          string    `json:"-"`
+	ExpiresAt    time.Time `json:"-"`
+}
+
+type AccessClaims struct {
+	UserID string `json:"user_id"`
+	Role   string `json:"role"`
+	jwt.RegisteredClaims
+}
+
+type RefreshClaims struct {
+	UserID string `json:"user_id"`
+	jwt.RegisteredClaims
+}
diff --git a/internal/domain/repositories.go b/internal/domain/repositories.go
index f7fe91e..4a8c070 100644
--- a/internal/domain/repositories.go
+++ b/internal/domain/repositories.go
@@ -1,96 +1,56 @@
-package domain
-
-import (
-	"context"
-	"fmt"
-	"processing/internal/decimal"
-
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type TransactionStatus string
-
-const (
-	StatusPending   TransactionStatus = "pending"
-	StatusCompleted TransactionStatus = "completed"
-	StatusFailed    TransactionStatus = "failed"
-)
-
-// Интерфейсы репозиториев (контракты для infrastructure слоя)
-type TransactionStorage interface {
-	Transaction(ctx context.Context, tx *Transaction) error
-	UpdateStatus(ctx context.Context, tx *Transaction, status TransactionStatus) error
-	GetByID(ctx context.Context, transactionID uuid.UUID) (Transaction, error)
-	GetTransactions(ctx context.Context, filter TransactionFilter) ([]Transaction, error)
-}
-
-type AccountsStorage interface {
-	Create(ctx context.Context, ac *Account) error
-	GetById(ctx context.Context, id uuid.UUID) (*Account, error)
-	Sub(ctx context.Context, sender_id uuid.UUID, amount decimal.Decimal) error
-	Add(ctx context.Context, receiver_id uuid.UUID, amount decimal.Decimal) error
-}
-
-// UnitOfWork управляет аккаунтами, транзакциями и транзакциями самой бд
-type UnitOfWork interface {
-	Accounts() AccountsStorage
-	Transactions() TransactionStorage
-	Commit() error
-	Rollback() error
-}
-
-// TxUOW нужен для создания транзакции (фабрика)
-type TxUOW interface {
-	NewTX(ctx context.Context) (UnitOfWork, error)
-}
-
-// Доменные сущности
-type Transaction struct {
-	ID          uuid.UUID         `json:"-"`
-	Amount      decimal.Decimal   `json:"amount"`
-	Sender_id   uuid.UUID         `json:"sender_id"`
-	Receiver_id uuid.UUID         `json:"receiver_id"`
-	Status      TransactionStatus `json:"status"`
-	Created_at  time.Time         `json:"created_at"`
-}
-
-type Account struct {
-	ID      uuid.UUID       `json:"account_id"`
-	Name    string          `json:"name"`
-	Balance decimal.Decimal `json:"balance"`
-}
-
-// Фабричные методы для создания доменных сущностей
-func NewTransaction(amount decimal.Decimal, sender_id uuid.UUID, receiver_id uuid.UUID) (*Transaction, error) {
-	id, err := uuid.NewUUID()
-	if err != nil {
-		return nil, fmt.Errorf("создание uuid: %w", err)
-	}
-	return &Transaction{
-		ID:          id,
-		Amount:      amount,
-		Sender_id:   sender_id,
-		Receiver_id: receiver_id,
-	}, nil
-}
-
-func NewAccount(name string, balance decimal.Decimal) (*Account, error) {
-	id, err := uuid.NewUUID()
-	if err != nil {
-		return nil, fmt.Errorf("создание uuid: %w", err)
-	}
-	return &Account{ID: id, Name: name, Balance: balance}, nil
-}
-
-type TransactionFilter struct {
-	SenderID   uuid.UUID
-	ReceiverID uuid.UUID
-	MinAmount  string
-	MaxAmount  string
-	From       time.Time
-	To         time.Time
-	Limit      int
-	Offset     int
-}
+package domain
+
+import (
+	"context"
+	"processing/internal/decimal"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type TransactionStatus string
+
+const (
+	StatusPending   TransactionStatus = "pending"
+	StatusCompleted TransactionStatus = "completed"
+	StatusFailed    TransactionStatus = "failed"
+)
+
+// Интерфейсы репозиториев (контракты для infrastructure слоя)
+type TransactionStorage interface {
+	Transaction(ctx context.Context, tx *Transaction) error
+	UpdateStatus(ctx context.Context, tx *Transaction, status TransactionStatus) error
+	GetByID(ctx context.Context, transactionID uuid.UUID) (Transaction, error)
+	GetTransactions(ctx context.Context, filter TransactionFilter) ([]Transaction, error)
+	TotalTransactions(ctx context.Context, userID uuid.UUID) (int, error)
+}
+
+type AccountsStorage interface {
+	Create(ctx context.Context, ac *Account) error
+	GetById(ctx context.Context, id uuid.UUID) (*Account, error)
+	GetByEmail(ctx context.Context, email string) (*Account, error)
+	Sub(ctx context.Context, sender_id uuid.UUID, amount decimal.Decimal) error
+	Add(ctx context.Context, receiver_id uuid.UUID, amount decimal.Decimal) error
+}
+
+// TokenStorage управляет refresh токенами
+type TokenStorage interface {
+	SaveRefreshToken(ctx context.Context, jti string, user_id string, expires_at time.Time) error
+	GetRefreshToken(ctx context.Context, jti string) (*RefreshSession, error)
+	RevokeRefreshToken(ctx context.Context, jti string) error
+	RevokeAllUserTokens(ctx context.Context, userID uuid.UUID) error
+}
+
+// UnitOfWork управляет аккаунтами, транзакциями и транзакциями самой бд
+type UnitOfWork interface {
+	Accounts() AccountsStorage
+	Transactions() TransactionStorage
+	Tokens() TokenStorage
+	Commit() error
+	Rollback() error
+}
+
+type TxUOW interface {
+	// TxUOW нужен для создания транзакции (фабрика)
+	NewTX(ctx context.Context) (UnitOfWork, error)
+}
diff --git a/internal/domain/transactions.go b/internal/domain/transactions.go
index 45c579f..2c45449 100644
--- a/internal/domain/transactions.go
+++ b/internal/domain/transactions.go
@@ -1,28 +1,50 @@
-package domain
-
-import (
-	"processing/internal/decimal"
-
-	"github.com/google/uuid"
-)
-
-// validateTransferRequest - валидирует реквест, проверяет достаточно ли денег на балансе сендера
-// не является ли получатель отправителем, положительная ли сумма
-func ValidateTransferRequest(
-	sender uuid.UUID,
-	receiver uuid.UUID,
-	sender_balance decimal.Decimal,
-	amount decimal.Decimal) error {
-	if sender == receiver {
-		return ErrSameAccount
-	}
-
-	if !amount.IsPositive() {
-		return ErrInvalidAmount
-	}
-
-	if sender_balance.Compare(amount) == -1 {
-		return ErrInsufficientFunds
-	}
-	return nil
-}
+package domain
+
+import (
+	"context"
+	"fmt"
+	"processing/internal/decimal"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type TransactionUsecase interface {
+	Transfer(ctx context.Context, sender_id, receiver_id uuid.UUID, key string, amount decimal.Decimal) (string, error)
+	GetTransaction(ctx context.Context, transactionID, userID uuid.UUID, key string) (Transaction, error)
+	GetTransactionFilter(ctx context.Context, t *TransactionFilter, userID uuid.UUID, key string) ([]Transaction, error)
+}
+
+type Transaction struct {
+	ID          uuid.UUID         `json:"-"`
+	Amount      decimal.Decimal   `json:"amount"`
+	Sender_id   uuid.UUID         `json:"sender_id"`
+	Receiver_id uuid.UUID         `json:"receiver_id"`
+	Status      TransactionStatus `json:"status"`
+	Created_at  time.Time         `json:"created_at"`
+}
+
+func NewTransaction(amount decimal.Decimal, sender_id uuid.UUID, receiver_id uuid.UUID) (*Transaction, error) {
+	id, err := uuid.NewUUID()
+	if err != nil {
+		return nil, fmt.Errorf("создание uuid: %w", err)
+	}
+	return &Transaction{
+		ID:          id,
+		Amount:      amount,
+		Sender_id:   sender_id,
+		Receiver_id: receiver_id,
+	}, nil
+}
+
+type TransactionFilter struct {
+	AccountID  uuid.UUID
+	SenderID   uuid.UUID
+	ReceiverID uuid.UUID
+	MinAmount  string
+	MaxAmount  string
+	From       time.Time
+	To         time.Time
+	Limit      int
+	Offset     int
+}
diff --git a/internal/infrastructure/cache/redis.go b/internal/infrastructure/cache/redis.go
index f63f4bd..eb66e23 100644
--- a/internal/infrastructure/cache/redis.go
+++ b/internal/infrastructure/cache/redis.go
@@ -1,87 +1,123 @@
-package cache
-
-import (
-	"context"
-	"errors"
-	"fmt"
-	"log/slog"
-	"time"
-
-	"github.com/google/uuid"
-	"github.com/redis/go-redis/v9"
-)
-
-var (
-	ErrRateLimitExceed = errors.New("превышен лимит запросов")
-	ErrDupRequest      = errors.New("запрос дубликат")
-)
-
-type Redis struct {
-	client *redis.Client
-	log    *slog.Logger
-}
-
-func NewRedis(addr string, log *slog.Logger) *Redis {
-	c := redis.NewClient(&redis.Options{
-		Addr: addr,
-	})
-	return &Redis{client: c, log: log}
-}
-
-// IdempotencyCheck - функция счётчик, проверяет не был ли уже такой запрос от пользователя
-func (redis *Redis) IdempotencyCheck(ctx context.Context, key string, limit int64, TTL time.Duration) error {
-	count, err := redis.client.Incr(ctx, key).Result()
-	if err != nil {
-		redis.log.InfoContext(ctx, "увеличение счетчика окна", "err", err)
-		return err
-	}
-
-	if count == 1 {
-		redis.client.Expire(ctx, key, TTL)
-	}
-
-	if count > limit {
-		redis.log.InfoContext(ctx, "получен запрос дубликат", "err", err)
-		return ErrDupRequest
-	}
-
-	return nil
-}
-
-// CheckRateLimit ограничивает запросы от пользователя
-func (redis *Redis) CheckRateLimit(ctx context.Context, userID uuid.UUID) error {
-	if err := redis.checkWindow(ctx, userID, 5, time.Minute, "min"); err != nil {
-		redis.log.InfoContext(ctx, "увеличение счетчика окна", "err", err)
-		return err
-	}
-
-	if err := redis.checkWindow(ctx, userID, 60, time.Hour, "hour"); err != nil {
-		redis.log.InfoContext(ctx, "увеличение счетчика окна", "err", err)
-		return err
-	}
-
-	if err := redis.checkWindow(ctx, userID, 200, 24*time.Hour, "day"); err != nil {
-		redis.log.InfoContext(ctx, "увеличение счетчика окна", "err", err)
-		return err
-	}
-
-	return nil
-}
-
-func (redis *Redis) checkWindow(ctx context.Context, userID uuid.UUID, limit int64, window time.Duration, suffix string) error {
-	key := fmt.Sprintf("ratelimit:%s:%s", userID, suffix)
-
-	count, err := redis.client.Incr(ctx, key).Result()
-	if err != nil {
-		return err
-	}
-
-	if count == 1 {
-		redis.client.Expire(ctx, key, window)
-	}
-
-	if count > limit {
-		return ErrRateLimitExceed
-	}
-	return nil
-}
+package cache
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"time"
+
+	"github.com/redis/go-redis/v9"
+)
+
+var (
+	ErrRateLimitExceed = errors.New("превышен лимит запросов")
+	ErrDupRequest      = errors.New("запрос дубликат")
+)
+
+// Lua скрипт для sliding window rate limiting
+// KEYS[1] - ключ для sorted set
+// ARGV[1] - текущее время (timestamp)
+// ARGV[2] - окно времени в секундах
+// ARGV[3] - лимит запросов
+// ARGV[4] - уникальный идентификатор запроса
+var rateLimitScript = redis.NewScript(
+	`
+	local key = KEYS[1]
+	local now = tonumber(ARGV[1])
+	local window = tonumber(ARGV[2])
+	local limit = tonumber(ARGV[3])
+	local request_id = ARGV[4]
+	local min_time = now - window
+	redis.call('ZREMRANGEBYSCORE', key, '-inf', min_time)
+
+	local current = redis.call('ZCARD', key)
+
+	if current >= limit then
+		return 0
+	end
+	redis.call('ZADD', key, now, request_id)
+	redis.call('EXPIRE', key, window + 10)
+	return 1
+`,
+)
+
+type Redis struct {
+	client        *redis.Client
+	rateLimitMin  int64
+	rateLimitHour int64
+	rateLimitDay  int64
+}
+
+type NewRedisOptions struct {
+	Addr          string
+	RateLimitMin  int64
+	RateLimitHour int64
+	RateLimitDay  int64
+}
+
+func NewRedis(opts NewRedisOptions) *Redis {
+	c := redis.NewClient(&redis.Options{
+		Addr: opts.Addr,
+	})
+	return &Redis{
+		client:        c,
+		rateLimitMin:  opts.RateLimitMin,
+		rateLimitHour: opts.RateLimitHour,
+		rateLimitDay:  opts.RateLimitDay,
+	}
+}
+
+// IdempotencyCheck добавляет идемпотентности операции, проверяет не был ли уже такой запрос от ключа
+// Атомарно устанавливает флаг на TTL. Повторный вызов с тем же ключом вернет ErrDupRequest
+func (redis *Redis) IdempotencyCheck(ctx context.Context, key string, TTL time.Duration) error {
+	set, err := redis.client.SetNX(ctx, key, 1, TTL).Result()
+	if err != nil {
+		return err
+	}
+
+	if !set {
+		return ErrDupRequest
+	}
+	return nil
+}
+
+// CheckRateLimit ограничивает запросы от пользователя
+// принимает контекст и какой то id(user_id, ip, etc..)
+func (redis *Redis) CheckRateLimit(ctx context.Context, id string) error {
+	if err := redis.checkWindow(ctx, id, redis.rateLimitMin, time.Minute, "min"); err != nil {
+		return err
+	}
+
+	if err := redis.checkWindow(ctx, id, redis.rateLimitHour, time.Hour, "hour"); err != nil {
+		return err
+	}
+
+	if err := redis.checkWindow(ctx, id, redis.rateLimitDay, 24*time.Hour, "day"); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (redis *Redis) checkWindow(ctx context.Context, id string, limit int64, window time.Duration, suffix string) error {
+	key := fmt.Sprintf("ratelimit:%s:%s", id, suffix)
+	now := time.Now().Unix()
+	windowSeconds := int64(window.Seconds())
+	requestID := fmt.Sprintf("%d-%d", now, time.Now().UnixNano())
+
+	result, err := rateLimitScript.Run(ctx, redis.client, []string{key}, now, windowSeconds, limit, requestID).Result()
+	if err != nil {
+		return fmt.Errorf("ошибка выполнения lua скрипта: %w", err)
+	}
+
+	allowed, ok := result.(int64)
+	if !ok {
+		return fmt.Errorf("неожиданный тип результата из lua скрипта")
+	}
+
+	if allowed == 0 {
+		return ErrRateLimitExceed
+	}
+
+	return nil
+}
diff --git a/internal/infrastructure/cache/redis_test.go b/internal/infrastructure/cache/redis_test.go
index 6e67ca3..e57fd9f 100644
--- a/internal/infrastructure/cache/redis_test.go
+++ b/internal/infrastructure/cache/redis_test.go
@@ -1,136 +1,129 @@
-package cache
-
-import (
-	"context"
-	"io"
-	"log/slog"
-	"os"
-	"testing"
-	"time"
-
-	"github.com/alicebob/miniredis/v2"
-	"github.com/google/uuid"
-)
-
-func TestIdempotencyCheck(t *testing.T) {
-	file, err := os.OpenFile("redis_test.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer file.Close()
-	logger := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, file), nil))
-	mr := miniredis.RunT(t)
-
-	client := NewRedis(mr.Addr(), logger)
-	key := "somekey"
-	if err := client.IdempotencyCheck(context.Background(), key, 1, 24*time.Hour); err != nil {
-		t.Log(err)
-		return
-	}
-	t.Log("запрос уникальный")
-	if err := client.IdempotencyCheck(context.Background(), key, 1, 24*time.Hour); err != nil {
-		t.Log(err)
-	}
-}
-
-func TestRedisMinutes(t *testing.T) {
-	file, err := os.OpenFile("redis_test.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer file.Close()
-	logger := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, file), nil))
-	mr := miniredis.RunT(t)
-
-	client := NewRedis(mr.Addr(), logger)
-	userID, _ := uuid.NewUUID()
-	for range 5 {
-		if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-			t.Log(err)
-		}
-	}
-
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-	}
-
-	mr.FastForward(time.Minute)
-	t.Log("промотали время вперед")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-		return
-	}
-	t.Log("успех")
-}
-
-func TestRedisHours(t *testing.T) {
-	file, err := os.OpenFile("redis_test.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer file.Close()
-	logger := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, file), nil))
-	mr := miniredis.RunT(t)
-	client := NewRedis(mr.Addr(), logger)
-	userID, _ := uuid.NewUUID()
-
-	for range 60 {
-		mr.FastForward(time.Minute)
-		if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-			t.Log(err)
-		}
-	}
-	t.Log("Отослали 60 запросов")
-
-	t.Log("отслыаем еще один запрос")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-	}
-
-	mr.FastForward(time.Hour)
-	t.Log("промотали время на 1 час вперед")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-		return
-	}
-	t.Log("успех")
-}
-
-func TestRedisDay(t *testing.T) {
-	file, err := os.OpenFile("redis_test.log", os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0644)
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer file.Close()
-	logger := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, file), nil))
-	mr := miniredis.RunT(t)
-	client := NewRedis(mr.Addr(), logger)
-	userID, _ := uuid.NewUUID()
-
-	for range 200 {
-		mr.FastForward(time.Minute)
-		if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-			t.Log(err)
-		}
-	}
-	t.Log("Отослали 200 запросов")
-
-	t.Log("отслыаем еще один запрос")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-	}
-
-	mr.FastForward(time.Hour)
-	t.Log("промотали время на 1 час вперед")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-	}
-
-	mr.FastForward(24 * time.Hour)
-	t.Log("промотали время на 24 часа вперед")
-	if err := client.CheckRateLimit(context.Background(), userID); err != nil {
-		t.Log(err)
-		return
-	}
-	t.Log("успех")
-}
+package cache
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/google/uuid"
+)
+
+func TestIdempotencyCheck(t *testing.T) {
+	mr := miniredis.RunT(t)
+
+	client := NewRedis(NewRedisOptions{
+		Addr:          mr.Addr(),
+		RateLimitMin:  5,
+		RateLimitHour: 60,
+		RateLimitDay:  200,
+	})
+	key := "somekey"
+	if err := client.IdempotencyCheck(context.Background(), key, 24*time.Hour); err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("запрос уникальный")
+	if err := client.IdempotencyCheck(context.Background(), key, 24*time.Hour); err != nil {
+		t.Log(err)
+	}
+}
+
+func TestRedisMinutes(t *testing.T) {
+	mr := miniredis.RunT(t)
+
+	client := NewRedis(NewRedisOptions{
+		Addr:          mr.Addr(),
+		RateLimitMin:  5,
+		RateLimitHour: 60,
+		RateLimitDay:  200,
+	})
+	userID, _ := uuid.NewUUID()
+	for range 5 {
+		if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+			t.Log(err)
+		}
+	}
+
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+	}
+
+	mr.FastForward(time.Minute)
+	t.Log("промотали время вперед")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("успех")
+}
+
+func TestRedisHours(t *testing.T) {
+	mr := miniredis.RunT(t)
+	client := NewRedis(NewRedisOptions{
+		Addr:          mr.Addr(),
+		RateLimitMin:  5,
+		RateLimitHour: 60,
+		RateLimitDay:  200,
+	})
+	userID, _ := uuid.NewUUID()
+
+	for range 60 {
+		mr.FastForward(time.Minute)
+		if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+			t.Log(err)
+		}
+	}
+	t.Log("Отослали 60 запросов")
+
+	t.Log("отслыаем еще один запрос")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+	}
+
+	mr.FastForward(time.Hour)
+	t.Log("промотали время на 1 час вперед")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("успех")
+}
+
+func TestRedisDay(t *testing.T) {
+	mr := miniredis.RunT(t)
+	client := NewRedis(NewRedisOptions{
+		Addr:          mr.Addr(),
+		RateLimitMin:  5,
+		RateLimitHour: 60,
+		RateLimitDay:  200,
+	})
+	userID, _ := uuid.NewUUID()
+
+	for range 200 {
+		mr.FastForward(time.Minute)
+		if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+			t.Log(err)
+		}
+	}
+	t.Log("Отослали 200 запросов")
+
+	t.Log("отслыаем еще один запрос")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+	}
+
+	mr.FastForward(time.Hour)
+	t.Log("промотали время на 1 час вперед")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+	}
+
+	mr.FastForward(24 * time.Hour)
+	t.Log("промотали время на 24 часа вперед")
+	if err := client.CheckRateLimit(context.Background(), userID.String()); err != nil {
+		t.Log(err)
+		return
+	}
+	t.Log("успех")
+}
diff --git a/internal/infrastructure/config/config.go b/internal/infrastructure/config/config.go
new file mode 100644
index 0000000..bd1b8f0
--- /dev/null
+++ b/internal/infrastructure/config/config.go
@@ -0,0 +1,96 @@
+package config
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+
+	"github.com/joho/godotenv"
+)
+
+type Config struct {
+	Environment string
+	LogLevel    string
+	Postgres    PostgresConfig
+	Redis       RedisConfig
+}
+
+type PostgresConfig struct {
+	HOST     string
+	PORT     string
+	DBNAME   string
+	USER     string
+	PASSWORD string
+	SSLMODE  string
+}
+
+type RedisConfig struct {
+	HOST          string
+	PORT          string
+	USER          string
+	PASSWORD      string
+	RateLimitMin  int64
+	RateLimitHour int64
+	RateLimitDay  int64
+}
+
+func Load() (*Config, error) {
+	if err := godotenv.Load(); err != nil {
+		return nil, err
+	}
+
+	cfg := &Config{
+		Environment: getEnv("ENVIRONMENT", "development"),
+		LogLevel:    getEnv("LOG_LEVEL", "info"),
+	}
+
+	cfg.Postgres = PostgresConfig{
+		HOST:     getEnv("POSTGRES_HOST", "localhost"),
+		PORT:     getEnv("POSTGRES_PORT", "5432"),
+		DBNAME:   getEnv("POSTGRES_DB", "postgres_bd"),
+		USER:     getEnv("POSTGRES_USER", "admin"),
+		PASSWORD: getEnv("POSTGRES_PASSWORD", "secret"),
+		SSLMODE:  getEnv("POSTGRES_SSL", "disable"),
+	}
+
+	cfg.Redis = RedisConfig{
+		HOST:          getEnv("REDIS_HOST", "localhost"),
+		PORT:          getEnv("REDIS_PORT", "6379"),
+		USER:          getEnv("REDIS_USER", ""),
+		PASSWORD:      getEnv("REDIS_PASSWORD", ""),
+		RateLimitMin:  getEnvAsInt("REDIS_RATE_LIMIT_MIN", 20),
+		RateLimitHour: getEnvAsInt("REDIS_RATE_LIMIT_HOUR", 100),
+		RateLimitDay:  getEnvAsInt("REDIS_RATE_LIMIT_DAY", 500),
+	}
+	return cfg, nil
+}
+
+func (c *PostgresConfig) PostgresDSN() string {
+	return fmt.Sprintf(
+		"postgres://%s:%s@%s:%s/%s?sslmode=%s",
+		c.USER, c.PASSWORD, c.HOST, c.PORT, c.DBNAME, c.SSLMODE,
+	)
+}
+
+func (c *RedisConfig) RedisDSN() string {
+	return fmt.Sprintf(
+		"%s:%s@%s:%s",
+		c.USER, c.PASSWORD, c.HOST, c.PORT,
+	)
+}
+
+func getEnv(key, defaultValue string) string {
+	if value := os.Getenv(key); value != "" {
+		return value
+	}
+	return defaultValue
+}
+
+func getEnvAsInt(key string, defaultValue int64) int64 {
+	if value := os.Getenv(key); value != "" {
+		if i, err := strconv.ParseInt(value, 10, 64); err == nil {
+			return i
+		}
+	}
+	return defaultValue
+}
diff --git a/internal/infrastructure/logger/logger.go b/internal/infrastructure/logger/logger.go
new file mode 100644
index 0000000..6fd56eb
--- /dev/null
+++ b/internal/infrastructure/logger/logger.go
@@ -0,0 +1,36 @@
+package logger
+
+import (
+	"log/slog"
+	"os"
+)
+
+func NewLogger(loglevel string, env string) (*slog.Logger, error) {
+	var level slog.Level
+	if err := level.UnmarshalText([]byte(loglevel)); err != nil {
+		level = slog.LevelInfo
+	}
+
+	var logger *slog.Logger
+	switch env {
+	case "production":
+		logger = slog.New(slog.NewJSONHandler(os.Stderr, &slog.HandlerOptions{
+			Level:     level,
+			AddSource: true,
+		}))
+	default:
+		logger = slog.New(slog.NewTextHandler(os.Stderr, &slog.HandlerOptions{
+			Level:     level,
+			AddSource: true,
+		}))
+	}
+
+	return logger, nil
+}
+
+func WithService(logger *slog.Logger, service string) *slog.Logger {
+	if logger == nil {
+		return slog.Default().With("service", service)
+	}
+	return logger.With("service", service)
+}
diff --git a/internal/infrastructure/storage/helper.go b/internal/infrastructure/storage/helper.go
index b7284c9..e4c878c 100644
--- a/internal/infrastructure/storage/helper.go
+++ b/internal/infrastructure/storage/helper.go
@@ -1,79 +1,81 @@
-package storage
-
-import (
-	"context"
-	"fmt"
-	"log/slog"
-	"processing/internal/decimal"
-	"processing/internal/domain"
-
-	"github.com/google/uuid"
-)
-
-func sqlrequest(ctx context.Context, filter domain.TransactionFilter, log *slog.Logger) (string, []interface{}) {
-	query := `SELECT id, amount, sender_id, receiver_id, status, created_at FROM transactions WHERE 1=1`
-	args := []interface{}{}
-	argCounter := 1
-
-	// Добавляем условия в зависимости от фильтров
-	if filter.SenderID != uuid.Nil {
-		query += fmt.Sprintf(" AND sender_id = $%d", argCounter)
-		args = append(args, filter.SenderID)
-		argCounter++
-	}
-
-	if filter.ReceiverID != uuid.Nil {
-		query += fmt.Sprintf(" AND receiver_id = $%d", argCounter)
-		args = append(args, filter.ReceiverID)
-		argCounter++
-	}
-
-	if filter.MinAmount != "" {
-		minAmount, err := decimal.NewFromString(filter.MinAmount)
-		if err != nil {
-			log.ErrorContext(ctx, "ошибка конвертации минимальной суммы", "error", err, "min_amount", filter.MinAmount)
-			return "", nil
-		}
-		query += fmt.Sprintf(" AND amount >= $%d", argCounter)
-		args = append(args, minAmount)
-		argCounter++
-	}
-
-	if filter.MaxAmount != "" {
-		maxAmount, err := decimal.NewFromString(filter.MaxAmount)
-		if err != nil {
-			log.ErrorContext(ctx, "ошибка конвертации максимальной суммы", "error", err, "max_amount", filter.MaxAmount)
-			return "", nil
-		}
-		query += fmt.Sprintf(" AND amount <= $%d", argCounter)
-		args = append(args, maxAmount)
-		argCounter++
-	}
-
-	if !filter.From.IsZero() {
-		query += fmt.Sprintf(" AND created_at >= $%d", argCounter)
-		args = append(args, filter.From)
-		argCounter++
-	}
-
-	if !filter.To.IsZero() {
-		query += fmt.Sprintf(" AND created_at <= $%d", argCounter)
-		args = append(args, filter.To)
-		argCounter++
-	}
-
-	query += " ORDER BY created_at DESC"
-
-	if filter.Limit > 0 {
-		query += fmt.Sprintf(" LIMIT $%d", argCounter)
-		args = append(args, filter.Limit)
-		argCounter++
-	}
-
-	if filter.Offset > 0 {
-		query += fmt.Sprintf(" OFFSET $%d", argCounter)
-		args = append(args, filter.Offset)
-	}
-
-	return query, args
-}
+package storage
+
+import (
+	"context"
+	"fmt"
+	"processing/internal/decimal"
+	"processing/internal/domain"
+
+	"github.com/google/uuid"
+)
+
+func sqlrequest(ctx context.Context, filter domain.TransactionFilter) (string, []interface{}) {
+	query := `SELECT id, amount, sender_id, receiver_id, status, created_at FROM transactions WHERE 1=1`
+	args := []interface{}{}
+	argCounter := 1
+
+	if filter.AccountID != uuid.Nil {
+		query += fmt.Sprintf(" AND(receiver_id = $%d OR sender_id = $%d)", argCounter, argCounter)
+		args = append(args, filter.AccountID)
+		argCounter++
+	}
+
+	if filter.SenderID != uuid.Nil {
+		query += fmt.Sprintf(" AND sender_id = $%d", argCounter)
+		args = append(args, filter.SenderID)
+		argCounter++
+	}
+
+	if filter.ReceiverID != uuid.Nil {
+		query += fmt.Sprintf(" AND receiver_id = $%d", argCounter)
+		args = append(args, filter.ReceiverID)
+		argCounter++
+	}
+
+	if filter.MinAmount != "" {
+		minAmount, err := decimal.NewFromString(filter.MinAmount)
+		if err != nil {
+			return "", nil
+		}
+		query += fmt.Sprintf(" AND amount >= $%d", argCounter)
+		args = append(args, minAmount)
+		argCounter++
+	}
+
+	if filter.MaxAmount != "" {
+		maxAmount, err := decimal.NewFromString(filter.MaxAmount)
+		if err != nil {
+			return "", nil
+		}
+		query += fmt.Sprintf(" AND amount <= $%d", argCounter)
+		args = append(args, maxAmount)
+		argCounter++
+	}
+
+	if !filter.From.IsZero() {
+		query += fmt.Sprintf(" AND created_at >= $%d", argCounter)
+		args = append(args, filter.From)
+		argCounter++
+	}
+
+	if !filter.To.IsZero() {
+		query += fmt.Sprintf(" AND created_at <= $%d", argCounter)
+		args = append(args, filter.To)
+		argCounter++
+	}
+
+	query += " ORDER BY created_at DESC"
+
+	if filter.Limit > 0 {
+		query += fmt.Sprintf(" LIMIT $%d", argCounter)
+		args = append(args, filter.Limit)
+		argCounter++
+	}
+
+	if filter.Offset > 0 {
+		query += fmt.Sprintf(" OFFSET $%d", argCounter)
+		args = append(args, filter.Offset)
+	}
+
+	return query, args
+}
diff --git a/internal/infrastructure/storage/storage.go b/internal/infrastructure/storage/storage.go
index 543a8bd..7d44e30 100644
--- a/internal/infrastructure/storage/storage.go
+++ b/internal/infrastructure/storage/storage.go
@@ -1,233 +1,320 @@
-package storage
-
-import (
-	"context"
-	"database/sql"
-	"errors"
-	"fmt"
-	"log/slog"
-	"processing/internal/decimal"
-	"processing/internal/domain"
-
-	"github.com/google/uuid"
-)
-
-type accountRepo struct {
-	tx  *sql.Tx
-	log *slog.Logger
-}
-type txRepo struct {
-	tx  *sql.Tx
-	log *slog.Logger
-}
-
-// транзакция которую мы будем раздавать
-type sqlTx struct {
-	tx       *sql.Tx
-	accounts *accountRepo
-	txs      *txRepo
-	log      *slog.Logger
-}
-
-func (u *sqlTx) Accounts() domain.AccountsStorage        { return u.accounts }
-func (u *sqlTx) Transactions() domain.TransactionStorage { return u.txs }
-
-func (u *sqlTx) Commit() error {
-	err := u.tx.Commit()
-	if err != nil {
-		u.log.Error("ошибка при коммите транзакции", "error", err)
-		return err
-	}
-	u.log.Debug("транзакция успешно закоммичена")
-	return nil
-}
-
-func (u *sqlTx) Rollback() error {
-	err := u.tx.Rollback()
-	if err != nil {
-		u.log.Error("ошибка при откате транзакции", "error", err)
-		return err
-	}
-	u.log.Debug("транзакция успешно откачена")
-	return nil
-}
-
-type uowFactory struct {
-	db  *sql.DB
-	log *slog.Logger
-}
-
-func NewUoWFactory(db *sql.DB, log *slog.Logger) domain.TxUOW {
-	return &uowFactory{db: db, log: log}
-}
-
-// NewTX создает новую транзакцию базы данных
-func (u *uowFactory) NewTX(ctx context.Context) (domain.UnitOfWork, error) {
-	tx, err := u.db.BeginTx(ctx, nil)
-	if err != nil {
-		u.log.ErrorContext(ctx, "не удалось начать транзакцию", "error", err)
-		return nil, fmt.Errorf("tx begin: %w", err)
-	}
-	u.log.DebugContext(ctx, "транзакция успешно создана")
-	return &sqlTx{
-		tx:       tx,
-		accounts: &accountRepo{tx: tx, log: u.log},
-		txs:      &txRepo{tx: tx, log: u.log},
-		log:      u.log,
-	}, nil
-}
-
-// Create - создаёт аккаунт и возвращает ID
-func (s *accountRepo) Create(ctx context.Context, ac *domain.Account) error {
-	query := `INSERT INTO accounts(id, name, balance) VALUES($1, $2, $3)`
-	s.log.DebugContext(ctx, "создание аккаунта", "account_id", ac.ID, "name", ac.Name, "balance", ac.Balance)
-	if _, err := s.tx.ExecContext(ctx, query, ac.ID, ac.Name, ac.Balance); err != nil {
-		s.log.ErrorContext(ctx, "ошибка создания аккаунта", "error", err, "account_id", ac.ID)
-		return fmt.Errorf("создание аккакунта: %w", err)
-	}
-	s.log.InfoContext(ctx, "аккаунт успешно создан", "account_id", ac.ID)
-	return nil
-}
-
-// GetById - возвращает аккаунт по id
-func (s *accountRepo) GetById(ctx context.Context, id uuid.UUID) (*domain.Account, error) {
-	s.log.DebugContext(ctx, "получение аккаунта по id", "account_id", id)
-	ac := &domain.Account{}
-	query := `SELECT id, name, balance FROM accounts WHERE id = $1`
-	err := s.tx.QueryRowContext(ctx, query, id).Scan(&ac.ID, &ac.Name, &ac.Balance)
-	if err != nil {
-		if errors.Is(err, sql.ErrNoRows) {
-			s.log.WarnContext(ctx, "аккаунт не найден", "account_id", id)
-			return nil, fmt.Errorf("аккаунт не найден или не создан: %w", err)
-		}
-		s.log.ErrorContext(ctx, "ошибка получения аккаунта", "error", err, "account_id", id)
-		return nil, fmt.Errorf("получение данных аккаунта по id: %w", err)
-	}
-	s.log.DebugContext(ctx, "аккаунт успешно получен", "account_id", id, "balance", ac.Balance)
-	return ac, nil
-}
-
-// Sub - вычетает сумму с баланса аккаунта
-func (s *accountRepo) Sub(ctx context.Context, sender_id uuid.UUID, amount decimal.Decimal) error {
-	s.log.DebugContext(ctx, "вычет суммы с баланса", "account_id", sender_id, "amount", amount)
-	query := `UPDATE accounts SET balance = balance - $1 WHERE id = $2`
-	if _, err := s.tx.ExecContext(ctx, query, amount, sender_id); err != nil {
-		s.log.ErrorContext(ctx, "ошибка вычета суммы с баланса", "error", err, "account_id", sender_id, "amount", amount)
-		return fmt.Errorf("вычет суммы с баланса: %w", err)
-	}
-	s.log.InfoContext(ctx, "сумма успешно вычтена с баланса", "account_id", sender_id, "amount", amount)
-	return nil
-}
-
-// Add - добавляет сумму на баланс аккаунта
-func (s *accountRepo) Add(ctx context.Context, receiver_id uuid.UUID, amount decimal.Decimal) error {
-	s.log.DebugContext(ctx, "добавление суммы на баланс", "account_id", receiver_id, "amount", amount)
-	query := `UPDATE accounts SET balance = balance + $1 WHERE id = $2`
-	if _, err := s.tx.ExecContext(ctx, query, amount, receiver_id); err != nil {
-		s.log.ErrorContext(ctx, "ошибка добавления суммы на баланс", "error", err, "account_id", receiver_id, "amount", amount)
-		return fmt.Errorf("добавление суммы на баланс: %w", err)
-	}
-	s.log.InfoContext(ctx, "сумма успешно добавлена на баланс", "account_id", receiver_id, "amount", amount)
-	return nil
-}
-
-// Transaction создает транзакцию в бд
-func (s *txRepo) Transaction(ctx context.Context, tx *domain.Transaction) error {
-	s.log.DebugContext(ctx, "создание транзакции", "transaction_id", tx.ID, "amount", tx.Amount, "sender_id", tx.Sender_id, "receiver_id", tx.Receiver_id)
-	query := `
-	INSERT INTO transactions(id, amount, sender_id, receiver_id) VALUES($1, $2, $3, $4)
-	RETURNING status, created_at
-	`
-	if err := s.tx.QueryRowContext(ctx, query, tx.ID, tx.Amount, tx.Sender_id, tx.Receiver_id).
-		Scan(&tx.Status, &tx.Created_at); err != nil {
-		s.log.ErrorContext(ctx, "ошибка создания транзакции", "error", err, "transaction_id", tx.ID)
-		return fmt.Errorf("создание транзакции: %w", err)
-	}
-	s.log.InfoContext(ctx, "транзакция успешно создана", "transaction_id", tx.ID, "status", tx.Status)
-	return nil
-}
-
-// UpdateStatus обновляет статус транзакции в бд
-func (s *txRepo) UpdateStatus(ctx context.Context, tx *domain.Transaction, status domain.TransactionStatus) error {
-	s.log.DebugContext(ctx, "обновление статуса транзакции", "transaction_id", tx.ID, "new_status", status)
-	query := `
-	UPDATE transactions SET status = $1 WHERE id = $2
-	RETURNING status, created_at
-	`
-	if err := s.tx.QueryRowContext(ctx, query, status, tx.ID).Scan(&tx.Status, &tx.Created_at); err != nil {
-		s.log.ErrorContext(ctx, "ошибка обновления статуса транзакции", "error", err, "transaction_id", tx.ID, "status", status)
-		return fmt.Errorf("обновление статуса транзакции: %w", err)
-	}
-	s.log.InfoContext(ctx, "статус транзакции успешно обновлен", "transaction_id", tx.ID, "status", tx.Status)
-	return nil
-}
-
-func (s *txRepo) GetByID(ctx context.Context, transactionID uuid.UUID) (domain.Transaction, error) {
-	s.log.DebugContext(ctx, "получение транзакции по id", "transaction_id", transactionID)
-	transaction := domain.Transaction{}
-	query := `SELECT amount, sender_id, receiver_id, status, created_at FROM transactions WHERE id = $1`
-	err := s.tx.
-		QueryRowContext(ctx, query, transactionID).
-		Scan(
-			&transaction.Amount,
-			&transaction.Sender_id,
-			&transaction.Receiver_id,
-			&transaction.Status,
-			&transaction.Created_at,
-		)
-	if err != nil {
-		if errors.Is(err, sql.ErrNoRows) {
-			s.log.WarnContext(ctx, "транзакция не найдена", "transaction_id", transactionID)
-		} else {
-			s.log.ErrorContext(ctx, "ошибка получения транзакции", "error", err, "transaction_id", transactionID)
-		}
-		return domain.Transaction{}, fmt.Errorf("получение транзакции по айди: %w", err)
-	}
-	s.log.DebugContext(ctx, "транзакция успешно получена", "transaction_id", transactionID, "status", transaction.Status)
-	return transaction, nil
-}
-
-// GetTransactions получает транзакции по фильтрам
-func (s *txRepo) GetTransactions(ctx context.Context, filter domain.TransactionFilter) ([]domain.Transaction, error) {
-	s.log.DebugContext(ctx, "получение транзакций по фильтрам", "filter", filter)
-
-	query, args := sqlrequest(ctx, filter, s.log)
-	if query == "" {
-		s.log.Error("не получилось построить запрос")
-		return nil, errors.New("не получилось построить запрос")
-	}
-	s.log.DebugContext(ctx, "выполнение SQL запроса", "query", query, "args", args)
-
-	rows, err := s.tx.QueryContext(ctx, query, args...)
-	if err != nil {
-		s.log.ErrorContext(ctx, "ошибка выполнения запроса", "error", err)
-		return nil, fmt.Errorf("получение транзакций по фильтрам: %w", err)
-	}
-	defer rows.Close()
-
-	transactions := []domain.Transaction{}
-	for rows.Next() {
-		var t domain.Transaction
-		err := rows.Scan(
-			&t.ID,
-			&t.Amount,
-			&t.Sender_id,
-			&t.Receiver_id,
-			&t.Status,
-			&t.Created_at,
-		)
-		if err != nil {
-			s.log.ErrorContext(ctx, "ошибка сканирования строки", "error", err)
-			return nil, fmt.Errorf("сканирование транзакции: %w", err)
-		}
-		transactions = append(transactions, t)
-	}
-
-	if err = rows.Err(); err != nil {
-		s.log.ErrorContext(ctx, "ошибка при обработке строк", "error", err)
-		return nil, fmt.Errorf("обработка строк результата: %w", err)
-	}
-
-	s.log.InfoContext(ctx, "транзакции успешно получены", "count", len(transactions))
-	return transactions, nil
-}
+package storage
+
+import (
+	"context"
+	"database/sql"
+	"errors"
+	"fmt"
+	"processing/internal/decimal"
+	"processing/internal/domain"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgconn"
+)
+
+type accountRepo struct {
+	tx *sql.Tx
+}
+
+type txRepo struct {
+	tx *sql.Tx
+}
+
+type txToken struct {
+	tx *sql.Tx
+}
+
+// транзакция которую мы будем раздавать
+type sqlTx struct {
+	tx       *sql.Tx
+	accounts *accountRepo
+	token    *txToken
+	txs      *txRepo
+}
+
+func (u *sqlTx) Accounts() domain.AccountsStorage        { return u.accounts }
+func (u *sqlTx) Transactions() domain.TransactionStorage { return u.txs }
+func (u *sqlTx) Tokens() domain.TokenStorage             { return u.token }
+
+func (u *sqlTx) Commit() error {
+	return u.tx.Commit()
+}
+
+func (u *sqlTx) Rollback() error {
+	return u.tx.Rollback()
+}
+
+type uowFactory struct {
+	db *sql.DB
+}
+
+func NewUoWFactory(db *sql.DB) domain.TxUOW {
+	return &uowFactory{db: db}
+}
+
+// NewTX создает новую транзакцию базы данных
+func (u *uowFactory) NewTX(ctx context.Context) (domain.UnitOfWork, error) {
+	tx, err := u.db.BeginTx(ctx, nil)
+	if err != nil {
+		return nil, fmt.Errorf("tx begin: %w", err)
+	}
+	return &sqlTx{
+		tx:       tx,
+		accounts: &accountRepo{tx: tx},
+		txs:      &txRepo{tx: tx},
+		token:    &txToken{tx: tx},
+	}, nil
+}
+
+// Create - создаёт аккаунт и возвращает ID
+func (s *accountRepo) Create(ctx context.Context, ac *domain.Account) error {
+	query := `INSERT INTO accounts(id, name, email, balance, password_hash, role) VALUES($1, $2, $3, $4, $5, $6)`
+
+	if _, err := s.tx.ExecContext(ctx, query, ac.ID, ac.Name, ac.Email, ac.Balance, ac.PasswordHash, ac.Role); err != nil {
+		var pgerr *pgconn.PgError
+		if errors.As(err, &pgerr) && pgerr.Code == "23505" {
+			return domain.ErrAccountAlreadyExist
+		}
+		return fmt.Errorf("создание аккакунта: %w", err)
+	}
+	return nil
+}
+
+// GetById - возвращает аккаунт по id
+func (s *accountRepo) GetById(ctx context.Context, id uuid.UUID) (*domain.Account, error) {
+	ac := &domain.Account{}
+	query := `SELECT id, name, email, balance, password_hash, role FROM accounts WHERE id = $1`
+	err := s.tx.QueryRowContext(ctx, query, id).Scan(&ac.ID, &ac.Name, &ac.Email, &ac.Balance, &ac.PasswordHash, &ac.Role)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, fmt.Errorf("аккаунт не найден или не создан: %w", err)
+		}
+		return nil, fmt.Errorf("получение данных аккаунта по id: %w", err)
+	}
+	return ac, nil
+}
+
+// GetByEmail - возвращает аккаунт по email
+func (s *accountRepo) GetByEmail(ctx context.Context, email string) (*domain.Account, error) {
+	ac := &domain.Account{}
+	query := `SELECT id, name, email, balance, password_hash, role FROM accounts WHERE email = $1`
+	err := s.tx.QueryRowContext(ctx, query, email).Scan(&ac.ID, &ac.Name, &ac.Email, &ac.Balance, &ac.PasswordHash, &ac.Role)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, fmt.Errorf("аккаунт не найден: %w", err)
+		}
+		return nil, fmt.Errorf("получение данных аккаунта по email: %w", err)
+	}
+	return ac, nil
+}
+
+// Sub - вычетает сумму с баланса аккаунта
+func (s *accountRepo) Sub(ctx context.Context, sender_id uuid.UUID, amount decimal.Decimal) error {
+	query := `
+	UPDATE accounts 
+	SET balance = balance - $1 
+	WHERE id = $2 AND balance >= $1
+	`
+	res, err := s.tx.ExecContext(ctx, query, amount, sender_id)
+	if err != nil {
+		return fmt.Errorf("вычет суммы с баланса: %w", err)
+	}
+
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+	if rows == 0 {
+		return domain.ErrInsufficientFunds
+	}
+
+	return nil
+}
+
+// Add - добавляет сумму на баланс аккаунта
+func (s *accountRepo) Add(ctx context.Context, receiver_id uuid.UUID, amount decimal.Decimal) error {
+	query := `UPDATE accounts SET balance = balance + $1 WHERE id = $2`
+	res, err := s.tx.ExecContext(ctx, query, amount, receiver_id)
+	if err != nil {
+		return fmt.Errorf("добавление суммы на баланс: %w", err)
+	}
+
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if rows == 0 {
+		return domain.ErrReceiverAccountNotFound
+	}
+
+	return nil
+}
+
+// Transaction создает транзакцию в бд
+func (s *txRepo) Transaction(ctx context.Context, tx *domain.Transaction) error {
+	query := `
+	INSERT INTO transactions(id, amount, sender_id, receiver_id) VALUES($1, $2, $3, $4)
+	RETURNING status, created_at
+	`
+	if err := s.tx.QueryRowContext(ctx, query, tx.ID, tx.Amount, tx.Sender_id, tx.Receiver_id).
+		Scan(&tx.Status, &tx.Created_at); err != nil {
+		return fmt.Errorf("создание транзакции: %w", err)
+	}
+	return nil
+}
+
+// UpdateStatus обновляет статус транзакции в бд
+func (s *txRepo) UpdateStatus(ctx context.Context, tx *domain.Transaction, status domain.TransactionStatus) error {
+	query := `
+	UPDATE transactions SET status = $1 WHERE id = $2
+	RETURNING status, created_at
+	`
+	if err := s.tx.QueryRowContext(ctx, query, status, tx.ID).Scan(&tx.Status, &tx.Created_at); err != nil {
+		return fmt.Errorf("обновление статуса транзакции: %w", err)
+	}
+	return nil
+}
+
+func (s *txRepo) GetByID(ctx context.Context, transactionID uuid.UUID) (domain.Transaction, error) {
+	transaction := domain.Transaction{}
+	query := `SELECT id, amount, sender_id, receiver_id, status, created_at FROM transactions WHERE id = $1`
+	err := s.tx.
+		QueryRowContext(ctx, query, transactionID).
+		Scan(
+			&transaction.ID,
+			&transaction.Amount,
+			&transaction.Sender_id,
+			&transaction.Receiver_id,
+			&transaction.Status,
+			&transaction.Created_at,
+		)
+	if err != nil {
+		return domain.Transaction{}, fmt.Errorf("получение транзакции по айди: %w", err)
+	}
+	return transaction, nil
+}
+
+// GetTransactions получает транзакции по фильтрам
+func (s *txRepo) GetTransactions(ctx context.Context, filter domain.TransactionFilter) ([]domain.Transaction, error) {
+	query, args := sqlrequest(ctx, filter)
+	if query == "" {
+		return nil, errors.New("не получилось построить запрос")
+	}
+
+	rows, err := s.tx.QueryContext(ctx, query, args...)
+	if err != nil {
+		return nil, fmt.Errorf("получение транзакций по фильтрам: %w", err)
+	}
+	defer rows.Close()
+
+	transactions := []domain.Transaction{}
+	for rows.Next() {
+		var t domain.Transaction
+		err := rows.Scan(
+			&t.ID,
+			&t.Amount,
+			&t.Sender_id,
+			&t.Receiver_id,
+			&t.Status,
+			&t.Created_at,
+		)
+		if err != nil {
+			return nil, fmt.Errorf("сканирование транзакции: %w", err)
+		}
+		transactions = append(transactions, t)
+	}
+
+	if err = rows.Err(); err != nil {
+		return nil, fmt.Errorf("обработка строк результата: %w", err)
+	}
+
+	return transactions, nil
+}
+
+func (s *txRepo) TotalTransactions(ctx context.Context, userID uuid.UUID) (int, error) {
+	query := `SELECT COUNT(*) FROM transactions WHERE receiver_id=$1 OR sender_id=$1`
+	var count int
+
+	if err := s.tx.QueryRowContext(ctx, query, userID).Scan(&count); err != nil {
+		return 0, err
+	}
+
+	return count, nil
+}
+
+func (s *txToken) SaveRefreshToken(ctx context.Context, jti string, user_id string, expires_at time.Time) error {
+	query := `INSERT INTO refresh_token(jti, user_id, expires_at, revoked) VALUES($1, $2, $3, false)`
+
+	res, err := s.tx.ExecContext(ctx, query, jti, user_id, expires_at)
+	if err != nil {
+		return domain.ErrSaveRefreshToken
+	}
+
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if rows == 0 {
+		return domain.ErrSaveRefreshToken
+	}
+
+	return nil
+}
+
+func (s *txToken) GetRefreshToken(ctx context.Context, jti string) (*domain.RefreshSession, error) {
+	query := `SELECT user_id, revoked, expires_at FROM refresh_token WHERE jti = $1`
+
+	session := &domain.RefreshSession{}
+	err := s.tx.QueryRowContext(ctx, query, jti).Scan(&session.UserID, &session.Revoked, &session.ExpiresAt)
+	if err != nil {
+		if errors.Is(err, sql.ErrNoRows) {
+			return nil, domain.ErrRefreshTokenNotFound
+		}
+		return nil, fmt.Errorf("получение refresh токена: %w", err)
+	}
+
+	return session, nil
+}
+
+func (s *txToken) RevokeRefreshToken(ctx context.Context, jti string) error {
+	query := `UPDATE refresh_token SET revoked = true WHERE jti = $1 AND revoked = false`
+
+	res, err := s.tx.ExecContext(ctx, query, jti)
+	if err != nil {
+		return fmt.Errorf("отзыв refresh токена: %w", err)
+	}
+
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if rows == 0 {
+		return domain.ErrRefreshTokenNotFound
+	}
+
+	return nil
+}
+
+func (s *txToken) RevokeAllUserTokens(ctx context.Context, userID uuid.UUID) error {
+	query := `UPDATE refresh_token SET revoked = true WHERE user_id = $1 AND revoked = false`
+
+	res, err := s.tx.ExecContext(ctx, query, userID)
+	if err != nil {
+		return fmt.Errorf("отзыв всех токенов пользователя: %w", err)
+	}
+
+	rows, err := res.RowsAffected()
+	if err != nil {
+		return err
+	}
+
+	if rows == 0 {
+		return domain.ErrUserNotFound
+	}
+
+	return nil
+}
diff --git a/internal/infrastructure/storage/storage_test.go b/internal/infrastructure/storage/storage_test.go
index 835eead..cf687e4 100644
--- a/internal/infrastructure/storage/storage_test.go
+++ b/internal/infrastructure/storage/storage_test.go
@@ -1,5 +1,5 @@
-package storage
-
-import (
-	_ "github.com/jackc/pgx/v5/stdlib"
-)
+package storage
+
+import (
+	_ "github.com/jackc/pgx/v5/stdlib"
+)
diff --git a/internal/usecase/accounts.go b/internal/usecase/accounts.go
new file mode 100644
index 0000000..950037b
--- /dev/null
+++ b/internal/usecase/accounts.go
@@ -0,0 +1,138 @@
+package usecase
+
+import (
+	"context"
+	"errors"
+	"log/slog"
+	"processing/internal/domain"
+	"processing/internal/infrastructure/logger"
+
+	"time"
+
+	"github.com/google/uuid"
+)
+
+var (
+	ErrInvalidEmail = errors.New("invalid email")
+)
+
+type AccountsService struct {
+	tx    domain.TxUOW
+	cache domain.Cache
+	log   *slog.Logger
+}
+
+func NewAccountService(tx domain.TxUOW, cache domain.Cache, log *slog.Logger) *AccountsService {
+	log = logger.WithService(log, "Accounts")
+	return &AccountsService{
+		tx:    tx,
+		cache: cache,
+		log:   log,
+	}
+}
+
+// Create создает аккаунт
+func (as *AccountsService) Create(ctx context.Context, acc *domain.Account, ip string) error {
+	if err := as.cache.CheckRateLimit(ctx, ip); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов при создании аккаунта", "ip", ip)
+		return err
+	}
+
+	if err := as.cache.IdempotencyCheck(ctx, ip, time.Minute); err != nil {
+		as.log.WarnContext(ctx, "повторный запрос на создание аккаунта", "ip", ip)
+		return err
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return err
+	}
+	defer uow.Rollback()
+
+	if err := uow.Accounts().Create(ctx, acc); err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания аккаунта в БД", "err", err, "email", acc.Email)
+		return err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка коммита транзакции", "err", err)
+		return err
+	}
+
+	as.log.InfoContext(ctx, "аккаунт успешно создан", "account_id", acc.ID, "email", acc.Email)
+	return nil
+}
+
+// GetAccount получает аккаунт по id
+func (as *AccountsService) GetAccount(ctx context.Context, id uuid.UUID) (*domain.Account, error) {
+	if err := as.cache.CheckRateLimit(ctx, id.String()); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов получения аккаунта", "account_id", id)
+		return nil, err
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return nil, err
+	}
+	defer uow.Rollback()
+
+	acc, err := uow.Accounts().GetById(ctx, id)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка получения аккаунта из БД", "err", err, "account_id", id)
+		return nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка коммита транзакции", "err", err)
+		return nil, err
+	}
+
+	as.log.InfoContext(ctx, "аккаунт успешно получен", "account_id", id)
+	return acc, nil
+}
+
+// TransactionHistory выводит все транзакции пользователя
+func (as *AccountsService) TransactionHistory(ctx context.Context, accountID uuid.UUID, limit, offset int) (int, []domain.Transaction, error) {
+	if err := as.cache.CheckRateLimit(ctx, accountID.String()); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов истории транзакций", "account_id", accountID)
+		return 0, nil, err
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return 0, nil, err
+	}
+	defer uow.Rollback()
+
+	var total int
+
+	total, err = uow.Transactions().TotalTransactions(ctx, accountID)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка получения количества транзакций", "err", err, "account_id", accountID)
+		return 0, nil, err
+	}
+
+	var transactions []domain.Transaction
+	filter := domain.TransactionFilter{
+		AccountID: accountID,
+		Limit:     limit,
+		Offset:    offset,
+	}
+
+	transactions, err = uow.Transactions().GetTransactions(ctx, filter)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка получения транзакций из БД", "err", err, "account_id", accountID, "limit", limit, "offset", offset)
+		return 0, nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка коммита транзакции", "err", err)
+		return 0, nil, err
+	}
+
+	as.log.InfoContext(ctx, "история транзакций получена", "account_id", accountID, "total", total, "returned", len(transactions))
+	return total, transactions, nil
+}
diff --git a/internal/usecase/auth.go b/internal/usecase/auth.go
new file mode 100644
index 0000000..bb1fa53
--- /dev/null
+++ b/internal/usecase/auth.go
@@ -0,0 +1,265 @@
+package usecase
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"log/slog"
+	"processing/internal/decimal"
+	jwtLayer "processing/internal/delivery/http/jwt"
+	"processing/internal/domain"
+	"processing/internal/infrastructure/logger"
+	"time"
+
+	"github.com/google/uuid"
+	"golang.org/x/crypto/bcrypt"
+)
+
+type AuthService struct {
+	tx    domain.TxUOW
+	cache domain.Cache
+	log   *slog.Logger
+}
+
+func NewAuthService(tx domain.TxUOW, cache domain.Cache, log *slog.Logger) *AuthService {
+	log = logger.WithService(log, "Auth")
+	return &AuthService{
+		tx:    tx,
+		cache: cache,
+		log:   log,
+	}
+}
+
+// Register регистрирует нового пользователя
+func (as *AuthService) Register(ctx context.Context, email, password, name string, ip string) (*domain.Account, error) {
+	if err := as.cache.CheckRateLimit(ctx, ip); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов при регистрации", "ip", ip)
+		return nil, err
+	}
+
+	idempotencyKey := ip + ":" + email
+	if err := as.cache.IdempotencyCheck(ctx, idempotencyKey, time.Minute); err != nil {
+		as.log.WarnContext(ctx, "повторный запрос на регистрацию", "ip", ip, "email", email)
+		return nil, err
+	}
+
+	passwordHash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка хэширования пароля", "err", err)
+		return nil, fmt.Errorf("хэширование пароля: %w", err)
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return nil, err
+	}
+	defer uow.Rollback()
+
+	account := &domain.Account{
+		ID:           uuid.New(),
+		Email:        email,
+		Name:         name,
+		PasswordHash: string(passwordHash),
+		Balance:      decimal.Zero(),
+		Role:         "user",
+	}
+
+	if err := uow.Accounts().Create(ctx, account); err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания аккаунта", "err", err, "email", email)
+		return nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка коммита транзакции", "err", err)
+		return nil, err
+	}
+
+	as.log.InfoContext(ctx, "пользователь успешно зарегистрирован", "user_id", account.ID, "email", email)
+	return account, nil
+}
+
+// Login аутентифицирует пользователя и возвращает пару токенов
+func (as *AuthService) Login(ctx context.Context, email, password string, ip string) (*domain.TokenPair, error) {
+	if err := as.cache.CheckRateLimit(ctx, ip); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов при логине", "ip", ip)
+		return nil, err
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return nil, err
+	}
+	defer uow.Rollback()
+
+	account, err := uow.Accounts().GetByEmail(ctx, email)
+	if err != nil {
+		as.log.WarnContext(ctx, "попытка входа с несуществующим email", "email", email)
+		return nil, domain.ErrInvalidCredentials
+	}
+
+	if err := bcrypt.CompareHashAndPassword([]byte(account.PasswordHash), []byte(password)); err != nil {
+		as.log.WarnContext(ctx, "неверный пароль при попытке входа", "user_id", account.ID, "email", email)
+		return nil, domain.ErrInvalidCredentials
+	}
+
+	tokenPair, err := jwtLayer.GenerateTokenPair(account.ID.String(), account.Role)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка генерации токенов", "err", err, "user_id", account.ID)
+		return nil, fmt.Errorf("генерация токенов: %w", err)
+	}
+
+	if err := uow.Tokens().SaveRefreshToken(ctx, tokenPair.JTI, account.ID.String(), tokenPair.ExpiresAt); err != nil {
+		as.log.ErrorContext(ctx, "ошибка сохранения refresh токена", "err", err, "user_id", account.ID)
+		return nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка транзакции", "err", err)
+		return nil, err
+	}
+
+	as.log.InfoContext(ctx, "успешный вход пользователя", "user_id", account.ID, "email", email)
+
+	return &domain.TokenPair{
+		AccessToken:  tokenPair.AccessToken,
+		RefreshToken: tokenPair.RefreshToken,
+		ExpiresIn:    tokenPair.ExpiresIn,
+	}, nil
+}
+
+// Refresh обновляет пару токенов используя refresh токен
+func (as *AuthService) Refresh(ctx context.Context, refreshToken string, ip string) (*domain.TokenPair, error) {
+	if err := as.cache.CheckRateLimit(ctx, ip); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов при refresh", "ip", ip)
+		return nil, err
+	}
+
+	claims, err := jwtLayer.ValidateRefreshToken(refreshToken)
+	if err != nil {
+		as.log.WarnContext(ctx, "невалидный refresh токен", "err", err)
+		return nil, domain.ErrInvalidRefreshToken
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return nil, err
+	}
+	defer uow.Rollback()
+
+	session, err := uow.Tokens().GetRefreshToken(ctx, claims.ID)
+	if err != nil {
+		if errors.Is(err, domain.ErrRefreshTokenNotFound) {
+			as.log.WarnContext(ctx, "refresh токен не найден в БД", "jti", claims.ID)
+			return nil, domain.ErrInvalidRefreshToken
+		}
+		return nil, err
+	}
+
+	if session.Revoked {
+		as.log.WarnContext(ctx, "попытка использования отозванного токена", "jti", claims.ID, "user_id", session.UserID)
+		return nil, domain.ErrRefreshTokenRevoked
+	}
+
+	if time.Now().After(session.ExpiresAt) {
+		as.log.WarnContext(ctx, "истекший refresh токен", "jti", claims.ID, "user_id", session.UserID)
+		return nil, domain.ErrRefreshTokenExpired
+	}
+
+	if err := uow.Tokens().RevokeRefreshToken(ctx, claims.ID); err != nil {
+		as.log.ErrorContext(ctx, "ошибка отзыва старого токена", "err", err, "jti", claims.ID)
+		return nil, err
+	}
+
+	account, err := uow.Accounts().GetById(ctx, session.UserID)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка получения аккаунта", "err", err, "user_id", session.UserID)
+		return nil, err
+	}
+
+	newTokenPair, err := jwtLayer.GenerateTokenPair(account.ID.String(), account.Role)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка генерации новых токенов", "err", err, "user_id", account.ID)
+		return nil, fmt.Errorf("генерация токенов: %w", err)
+	}
+
+	if err := uow.Tokens().SaveRefreshToken(ctx, newTokenPair.JTI, account.ID.String(), newTokenPair.ExpiresAt); err != nil {
+		as.log.ErrorContext(ctx, "ошибка сохранения нового refresh токена", "err", err, "user_id", account.ID)
+		return nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка транзакции", "err", err)
+		return nil, err
+	}
+
+	as.log.InfoContext(ctx, "токены успешно обновлены", "user_id", account.ID, "old_jti", claims.ID, "new_jti", newTokenPair.JTI)
+
+	return &domain.TokenPair{
+		AccessToken:  newTokenPair.AccessToken,
+		RefreshToken: newTokenPair.RefreshToken,
+		ExpiresIn:    newTokenPair.ExpiresIn,
+	}, nil
+}
+
+// Logout выходит из системы и отзывает refresh токен
+func (as *AuthService) Logout(ctx context.Context, refreshToken string, ip string) error {
+	if err := as.cache.CheckRateLimit(ctx, ip); err != nil {
+		as.log.WarnContext(ctx, "превышен лимит запросов при logout", "ip", ip)
+	}
+
+	claims, err := jwtLayer.ValidateRefreshToken(refreshToken)
+	if err != nil {
+		as.log.WarnContext(ctx, "невалидный токен при logout", "err", err)
+		return nil
+	}
+
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return err
+	}
+	defer uow.Rollback()
+
+	if err := uow.Tokens().RevokeRefreshToken(ctx, claims.ID); err != nil {
+		if errors.Is(err, domain.ErrRefreshTokenNotFound) {
+			as.log.WarnContext(ctx, "токен уже удален или не существует", "jti", claims.ID)
+			return nil
+		}
+		as.log.ErrorContext(ctx, "ошибка отзыва токена при logout", "err", err, "jti", claims.ID)
+		return err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка транзакции", "err", err)
+		return err
+	}
+
+	as.log.InfoContext(ctx, "пользователь вышел из системы", "jti", claims.ID, "user_id", claims.UserID)
+	return nil
+}
+
+// LogoutAll отзывает все токены
+func (as *AuthService) LogoutAll(ctx context.Context, userID uuid.UUID) error {
+	uow, err := as.tx.NewTX(ctx)
+	if err != nil {
+		as.log.ErrorContext(ctx, "ошибка создания транзакции", "err", err)
+		return err
+	}
+	defer uow.Rollback()
+
+	if err := uow.Tokens().RevokeAllUserTokens(ctx, userID); err != nil {
+		as.log.ErrorContext(ctx, "ошибка отзыва всех токенов пользователя", "err", err, "user_id", userID)
+		return err
+	}
+
+	if err := uow.Commit(); err != nil {
+		as.log.ErrorContext(ctx, "ошибка транзакции", "err", err)
+		return err
+	}
+
+	as.log.InfoContext(ctx, "все токены пользователя отозваны", "user_id", userID)
+	return nil
+}
diff --git a/internal/usecase/transactions.go b/internal/usecase/transactions.go
index 56bed9a..3bd6738 100644
--- a/internal/usecase/transactions.go
+++ b/internal/usecase/transactions.go
@@ -1,177 +1,181 @@
-package usecase
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"log/slog"
-	"os"
-	"processing/internal/decimal"
-	"processing/internal/domain"
-	"time"
-
-	"github.com/google/uuid"
-)
-
-type TransferService struct {
-	tx    domain.TxUOW
-	cache domain.Cache
-	log   *slog.Logger
-}
-
-func NewService(tx domain.TxUOW, cache domain.Cache, loggerPath string) *TransferService {
-	file, err := os.OpenFile(loggerPath, os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0644)
-	if err != nil {
-		panic(err)
-	}
-	logger := slog.New(slog.NewJSONHandler(io.MultiWriter(os.Stdout, file), nil))
-	slog.SetDefault(logger)
-	slog.Info("создан логгер")
-	return &TransferService{
-		tx:    tx,
-		cache: cache,
-		log:   logger,
-	}
-}
-
-// Transfer - главная функция процессинга. Создает транзакцию.
-// Как работает: вычет с балансов аккаунтов -> создание транзакции
-// принимает контекст, ключ для redis, sender_id, receiver_id, amount
-func (ts *TransferService) Transfer(
-	ctx context.Context,
-	sender_id, receiver_id uuid.UUID,
-	key string,
-	amount decimal.Decimal,
-) error {
-	if err := ts.cache.CheckRateLimit(ctx, sender_id); err != nil {
-		ts.log.Error("CheckRateLimit", "err", err)
-		return err
-	}
-	//проверка идемпотентности запроса
-	if err := ts.cache.IdempotencyCheck(ctx, key, 1, 24*time.Hour); err != nil {
-		ts.log.Error("IdempotencyCheck", "err", err)
-		return err
-	}
-	//новая транзакция
-	uow, err := ts.tx.NewTX(ctx)
-	if err != nil {
-		ts.log.Error("NewTX", "err", err)
-		return err
-	}
-
-	defer uow.Rollback()
-
-	//получаем пользователей по айди валидации
-	sender, err := uow.Accounts().GetById(ctx, sender_id)
-	if err != nil {
-		ts.log.Error("Accounts.GetById", "err", err)
-		return err
-	}
-	receiver, err := uow.Accounts().GetById(ctx, receiver_id)
-	if err != nil {
-		ts.log.Error("Account.GetById", "err", err)
-		return err
-	}
-	//валидация
-	if err := domain.ValidateTransferRequest(sender.ID, receiver.ID, sender.Balance, amount); err != nil {
-		return err
-	}
-	//сначала вычитаем сумму с баланса отправителя
-	if err := uow.Accounts().Sub(ctx, sender_id, amount); err != nil {
-		ts.log.Error("DB substituion", "err", err)
-		return err
-	}
-	//затем прибавляем сумму на баланс получателя
-	if err := uow.Accounts().Add(ctx, receiver_id, amount); err != nil {
-		ts.log.Error("DB Amount add", "err", err)
-		return err
-	}
-
-	//создание транзакции
-	tx, err := domain.NewTransaction(amount, sender_id, receiver_id)
-	if err != nil {
-		ts.log.Error("creating domain.Transaction", "err", err)
-		return err
-	}
-
-	if err := uow.Transactions().Transaction(ctx, tx); err != nil {
-		ts.log.Error("DB transaction creating", "err", err)
-		return err
-	}
-
-	if err := uow.Transactions().UpdateStatus(ctx, tx, domain.StatusCompleted); err != nil {
-		ts.log.Error("update status", "err", err)
-		return err
-	}
-
-	return uow.Commit()
-}
-
-func (ts *TransferService) GetTransaction(
-	ctx context.Context,
-	transactionID,
-	userID uuid.UUID,
-	key string,
-) (domain.Transaction, error) {
-	if err := ts.cache.CheckRateLimit(ctx, userID); err != nil {
-		ts.log.Error("CheckRateLimit", "err", err)
-		return domain.Transaction{}, err
-	}
-
-	if err := ts.cache.IdempotencyCheck(ctx, key, 10, time.Minute); err != nil {
-		ts.log.Error("IdempotencyCheck", "err", err)
-		return domain.Transaction{}, err
-	}
-	uow, err := ts.tx.NewTX(ctx)
-	if err != nil {
-		ts.log.Error("NewTX", "err", err)
-		return domain.Transaction{}, fmt.Errorf("ошибка начала транзакции бд: %w", err)
-	}
-	defer uow.Rollback()
-
-	transaction, err := uow.Transactions().GetByID(ctx, transactionID)
-	if err != nil {
-		ts.log.Error("Transactions.GetByID", "err", err)
-		return domain.Transaction{}, fmt.Errorf("ошибка получения транзакции из бд: %w", err)
-	}
-
-	uow.Commit()
-	return transaction, nil
-}
-
-func (ts *TransferService) GetTransactionFilter(
-	ctx context.Context,
-	t *domain.TransactionFilter,
-	userID uuid.UUID,
-	key string,
-) ([]domain.Transaction, error) {
-	if err := ts.cache.CheckRateLimit(ctx, userID); err != nil {
-		ts.log.Error("CheckRateLimit", "err", err)
-		return nil, err
-	}
-
-	if err := ts.cache.IdempotencyCheck(ctx, key, 10, time.Minute); err != nil {
-		ts.log.Error("IdempotencyCheck", "err", err)
-		return nil, err
-	}
-
-	uow, err := ts.tx.NewTX(ctx)
-	if err != nil {
-		ts.log.Error("NewTX", "err", err)
-		return nil, fmt.Errorf("ошибка начала транзакции бд: %w", err)
-	}
-	defer uow.Rollback()
-
-	transactions, err := uow.Transactions().GetTransactions(ctx, *t)
-	if err != nil {
-		ts.log.Error("Transactions.GetTransactions", "err", err)
-		return nil, fmt.Errorf("ошибка получения транзакций из бд: %w", err)
-	}
-
-	if err := uow.Commit(); err != nil {
-		ts.log.Error("Commit", "err", err)
-		return nil, fmt.Errorf("ошибка коммита транзакции: %w", err)
-	}
-
-	return transactions, nil
-}
+package usecase
+
+import (
+	"context"
+	"log/slog"
+	"processing/internal/decimal"
+	"processing/internal/domain"
+	"processing/internal/infrastructure/logger"
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type TransactionsService struct {
+	tx    domain.TxUOW
+	cache domain.Cache
+	log   *slog.Logger
+}
+
+func NewTransactionsService(txUOW domain.TxUOW, cache domain.Cache, log *slog.Logger) *TransactionsService {
+	log = logger.WithService(log, "Transactions")
+	return &TransactionsService{
+		tx:    txUOW,
+		cache: cache,
+		log:   log,
+	}
+}
+
+// Transfer - главная функция процессинга. Создает транзакцию.
+// Как работает: вычет с балансов аккаунтов -> создание транзакции
+// принимает контекст, sender_id, receiver_id, ключ для redis, amount
+func (ts *TransactionsService) Transfer(
+	ctx context.Context,
+	sender_id, receiver_id uuid.UUID,
+	key string,
+	amount decimal.Decimal,
+) (string, error) {
+	if err := ts.cache.CheckRateLimit(ctx, sender_id.String()); err != nil {
+		ts.log.WarnContext(ctx, "превышен лимит запросов при переводе", "sender_id", sender_id)
+		return "", err
+	}
+
+	if err := ts.cache.IdempotencyCheck(ctx, key, 24*time.Hour); err != nil {
+		ts.log.WarnContext(ctx, "повторный запрос на перевод", "sender_id", sender_id, "receiver_id", receiver_id)
+		return "", err
+	}
+
+	uow, err := ts.tx.NewTX(ctx)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка создания транзакции БД", "err", err)
+		return "", err
+	}
+
+	defer uow.Rollback()
+
+	sender, err := uow.Accounts().GetById(ctx, sender_id)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка получения аккаунта отправителя", "err", err, "sender_id", sender_id)
+		return "", err
+	}
+	receiver, err := uow.Accounts().GetById(ctx, receiver_id)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка получения аккаунта получателя", "err", err, "receiver_id", receiver_id)
+		return "", err
+	}
+
+	if sender.ID == receiver.ID {
+		ts.log.WarnContext(ctx, "попытка перевода на собственный счет", "sender_id", sender_id)
+		return "", domain.ErrSameAccount
+	}
+
+	if !amount.IsPositive() {
+		ts.log.WarnContext(ctx, "попытка перевода отрицательной суммы", "sender_id", sender_id, "amount", amount)
+		return "", domain.ErrInvalidAmount
+	}
+
+	if err := uow.Accounts().Sub(ctx, sender_id, amount); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка вычисления суммы со счета отправителя", "err", err, "sender_id", sender_id, "amount", amount)
+		return "", err
+	}
+
+	if err := uow.Accounts().Add(ctx, receiver_id, amount); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка добавления суммы на счет получателя", "err", err, "receiver_id", receiver_id, "amount", amount)
+		return "", err
+	}
+
+	tx, err := domain.NewTransaction(amount, sender_id, receiver_id)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка создания объекта транзакции", "err", err, "sender_id", sender_id, "receiver_id", receiver_id)
+		return "", err
+	}
+
+	if err := uow.Transactions().Transaction(ctx, tx); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка сохранения транзакции в БД", "err", err, "transaction_id", tx.ID)
+		return "", err
+	}
+
+	if err := uow.Transactions().UpdateStatus(ctx, tx, domain.StatusCompleted); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка обновления статуса транзакции", "err", err, "transaction_id", tx.ID)
+		return "", err
+	}
+
+	if err := uow.Commit(); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка коммита транзакции БД", "err", err, "transaction_id", tx.ID)
+		return "", err
+	}
+
+	ts.log.InfoContext(ctx, "транзакция успешно завершена", "transaction_id", tx.ID, "sender_id", sender_id, "receiver_id", receiver_id, "amount", amount)
+	return tx.ID.String(), nil
+}
+
+// GetTransaction
+func (ts *TransactionsService) GetTransaction(
+	ctx context.Context,
+	transactionID,
+	userID uuid.UUID,
+	key string,
+) (domain.Transaction, error) {
+	if err := ts.cache.CheckRateLimit(ctx, userID.String()); err != nil {
+		ts.log.WarnContext(ctx, "превышен лимит запросов при получении транзакции", "user_id", userID)
+		return domain.Transaction{}, err
+	}
+
+	uow, err := ts.tx.NewTX(ctx)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка создания транзакции БД", "err", err)
+		return domain.Transaction{}, err
+	}
+	defer uow.Rollback()
+
+	transaction, err := uow.Transactions().GetByID(ctx, transactionID)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка получения транзакции из БД", "err", err, "transaction_id", transactionID)
+		return domain.Transaction{}, err
+	}
+
+	if transaction.Sender_id != userID && transaction.Receiver_id != userID {
+		ts.log.WarnContext(ctx, "попытка доступа к чужой транзакции", "user_id", userID, "transaction_id", transactionID)
+		return domain.Transaction{}, domain.ErrAccessDenied
+	}
+
+	if err := uow.Commit(); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка коммита транзакции БД", "err", err)
+		return domain.Transaction{}, err
+	}
+
+	return transaction, nil
+}
+
+func (ts *TransactionsService) GetTransactionFilter(
+	ctx context.Context,
+	t *domain.TransactionFilter,
+	userID uuid.UUID,
+	key string,
+) ([]domain.Transaction, error) {
+	if err := ts.cache.CheckRateLimit(ctx, userID.String()); err != nil {
+		ts.log.WarnContext(ctx, "превышен лимит запросов при фильтрации транзакций", "user_id", userID)
+		return nil, err
+	}
+
+	uow, err := ts.tx.NewTX(ctx)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка создания транзакции БД", "err", err)
+		return nil, err
+	}
+	defer uow.Rollback()
+
+	transactions, err := uow.Transactions().GetTransactions(ctx, *t)
+	if err != nil {
+		ts.log.ErrorContext(ctx, "ошибка получения транзакций из БД", "err", err, "account_id", t.AccountID)
+		return nil, err
+	}
+
+	if err := uow.Commit(); err != nil {
+		ts.log.ErrorContext(ctx, "ошибка коммита транзакции БД", "err", err)
+		return nil, err
+	}
+
+	ts.log.InfoContext(ctx, "транзакции по фильтру получены", "user_id", userID, "count", len(transactions))
+	return transactions, nil
+}
diff --git a/makefile b/makefile
index b2fe163..1621e72 100644
--- a/makefile
+++ b/makefile
@@ -1,16 +1,16 @@
-DB_URL = postgres://admin:secret@localhost:5432/postgres_bd
-
-docker-up:
-	docker compose up -d 
-
-docker-down:
-	docker compose down
-
-migrate-up:
-	goose -dir migrations postgres $(DB_URL) up
-
-migrate-down:
-	goose -dir migrations postgres $(DB_URL) down
-
-run:
+DB_URL = postgres://admin:secret@localhost:5432/postgres_bd
+
+docker-up:
+	docker compose up -d 
+
+docker-down:
+	docker compose down
+
+migrate-up:
+	goose -dir migrations postgres $(DB_URL) up
+
+migrate-down:
+	goose -dir migrations postgres $(DB_URL) down
+
+run:
 	go run cmd/main.go
\ No newline at end of file
diff --git a/migrations/00001_processing.sql b/migrations/00001_processing.sql
new file mode 100644
index 0000000..42eb988
--- /dev/null
+++ b/migrations/00001_processing.sql
@@ -0,0 +1,32 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS accounts (
+	id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+	name TEXT NOT NULL,
+	email TEXT NOT NULL UNIQUE,
+	password_hash TEXT NOT NULL,
+	role TEXT NOT NULL DEFAULT 'user',
+	balance NUMERIC(36, 18) NOT NULL DEFAULT 0, 
+	CONSTRAINT balance_is_positive CHECK (balance >= 0) 
+);
+
+CREATE TABLE IF NOT EXISTS transactions (
+	id UUID PRIMARY KEY, 
+  	amount NUMERIC(36, 18) NOT NULL,
+  	sender_id UUID NOT NULL REFERENCES accounts(id),
+  	receiver_id UUID NOT NULL REFERENCES accounts(id),
+  	status VARCHAR(20) NOT NULL DEFAULT 'pending' CHECK(status IN ('pending', 'completed', 'failed')),
+  	created_at TIMESTAMPTZ DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS refresh_token (
+	jti TEXT PRIMARY KEY NOT NULL,
+	user_id UUID NOT NULL REFERENCES accounts(id) ON DELETE CASCADE,
+	revoked BOOLEAN NOT NULL DEFAULT FALSE,
+	expires_at TIMESTAMPTZ NOT NULL,
+	created_at TIMESTAMPTZ NOT NULL DEFAULT now() 
+);
+
+-- +goose Down
+DROP TABLE IF EXISTS refresh_token;
+DROP TABLE IF EXISTS transactions;
+DROP TABLE IF EXISTS accounts;
diff --git a/migrations/00001_transaction.sql b/migrations/00001_transaction.sql
deleted file mode 100644
index c1f4826..0000000
--- a/migrations/00001_transaction.sql
+++ /dev/null
@@ -1,20 +0,0 @@
--- +goose Up
-CREATE TABLE IF NOT EXISTS accounts ( 
-	id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
-	name TEXT NOT NULL,
-	balance NUMERIC(36, 18) NOT NULL
-);
-
-CREATE TABLE IF NOT EXISTS transactions (
-	id UUID PRIMARY KEY, 
-  	amount NUMERIC(36, 18) NOT NULL,
-  	sender_id UUID NOT NULL REFERENCES accounts(id),
-  	receiver_id UUID NOT NULL REFERENCES accounts(id),
-  	status VARCHAR(20) NOT NULL DEFAULT 'pending',
-  	created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
-);
-
-
--- +goose Down
-DROP TABLE IF EXISTS transactions;
-DROP TABLE IF EXISTS accounts;
diff --git a/photo_2026-06-06_10-22-39.jpg b/photo_2026-06-06_10-22-39.jpg
deleted file mode 100644
index 8c32825..0000000
Binary files a/photo_2026-06-06_10-22-39.jpg and /dev/null differ