save refresh token in login route

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+    "cSpell.words": [
+        "pgxpool"
+    ]
+}

cmd/evening_detective_server/main.go

@@ -7,6 +7,7 @@ import (
 	"evening_detective_server/internal/modules/email_sender"
 	"evening_detective_server/internal/modules/password_generator"
 	"evening_detective_server/internal/modules/processor_jwt"
+	"evening_detective_server/internal/repos/refresh_tokens_repo"
 	"evening_detective_server/internal/repos/users_repo"
 	"evening_detective_server/internal/services/users_service"
 	proto "evening_detective_server/proto"
@@ -51,7 +52,8 @@ func main() {
 	smtpPassword := os.Getenv("SMTP_PASSWORD")
 	emailSender := email_sender.NewSender(smtpHost, smtpPort, smtpUser, smtpPassword)
 	processorJWT := processor_jwt.NewProcessor(os.Getenv("SECRET"))
-	usersService := users_service.NewUsersService(usersRepo, passwordGenerator, emailSender, processorJWT)
+	refreshTokensRepo := refresh_tokens_repo.NewRefreshTokensRepo(dbpool)
+	usersService := users_service.NewUsersService(usersRepo, passwordGenerator, emailSender, processorJWT, refreshTokensRepo)
 
 	// Create a listener on TCP port
 	lis, err := net.Listen("tcp", ":8080")

internal/repos/refresh_tokens_repo/repo.go

@@ -0,0 +1,43 @@
+package refresh_tokens_repo
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+type RefreshTokensRepo struct {
+	pool *pgxpool.Pool
+}
+
+func NewRefreshTokensRepo(pool *pgxpool.Pool) *RefreshTokensRepo {
+	return &RefreshTokensRepo{
+		pool: pool,
+	}
+}
+
+func (s *RefreshTokensRepo) AddRefreshToken(
+	ctx context.Context,
+	userId int,
+	refreshToken string,
+) error {
+	_, err := s.pool.Exec(
+		ctx,
+		`INSERT INTO refresh_tokens (user_id, refresh_token) VALUES ($1, $2)`,
+		userId,
+		refreshToken,
+	)
+	return err
+}
+
+func (s *RefreshTokensRepo) DeleteRefreshTokensByUserId(
+	ctx context.Context,
+	userId int,
+) error {
+	_, err := s.pool.Exec(
+		ctx,
+		`DELETE FROM refresh_tokens WHERE user_id = $1`,
+		userId,
+	)
+	return err
+}

internal/services/users_service/service.go

@@ -6,6 +6,7 @@ import (
 	"evening_detective_server/internal/modules/email_sender"
 	"evening_detective_server/internal/modules/password_generator"
 	"evening_detective_server/internal/modules/processor_jwt"
+	"evening_detective_server/internal/repos/refresh_tokens_repo"
 	"evening_detective_server/internal/repos/users_repo"
 	"fmt"
 	"strings"
@@ -18,6 +19,7 @@ type UsersService struct {
 	passwordGenerator password_generator.IPasswordGenerator
 	emailSender       email_sender.IEmailSender
 	processorJWT      processor_jwt.IProcessorJWT
+	refreshTokensRepo *refresh_tokens_repo.RefreshTokensRepo
 }
 
 func NewUsersService(
@@ -25,12 +27,14 @@ func NewUsersService(
 	passwordGenerator password_generator.IPasswordGenerator,
 	emailSender email_sender.IEmailSender,
 	processorJWT processor_jwt.IProcessorJWT,
+	refreshTokensRepo *refresh_tokens_repo.RefreshTokensRepo,
 ) *UsersService {
 	return &UsersService{
 		usersRepo:         usersRepo,
 		passwordGenerator: passwordGenerator,
 		emailSender:       emailSender,
 		processorJWT:      processorJWT,
+		refreshTokensRepo: refreshTokensRepo,
 	}
 }
 
@@ -130,8 +134,13 @@ func (s *UsersService) Login(
 
 	fmt.Println(accessToken, refreshToken)
 
-	// delete refresh tokens
+	if err := s.refreshTokensRepo.DeleteRefreshTokensByUserId(ctx, user.ID); err != nil {
-	// save new refresh token
+		return "", "", err
+	}
+
+	if err := s.refreshTokensRepo.AddRefreshToken(ctx, user.ID, refreshToken); err != nil {
+		return "", "", err
+	}
 
 	return accessToken, refreshToken, nil
 }

migrations/20260704192907_refresh_tokens_table.sql

@@ -0,0 +1,11 @@
+-- +goose Up
+CREATE TABLE IF NOT EXISTS refresh_tokens (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    user_id INT NOT NULL,
+    refresh_token TEXT NOT NULL,
+    
+    CONSTRAINT fk_user FOREIGN KEY (user_id) REFERENCES users(id) ON DELETE CASCADE
+);
+
+-- +goose Down
+DROP TABLE IF EXISTS refresh_tokens;