diff --git a/backend/cmd/main.go b/backend/cmd/main.go
index 35a416e..57612c0 100644
--- a/backend/cmd/main.go
+++ b/backend/cmd/main.go
@@ -13,18 +13,21 @@
 package main
 
 import (
-	"time"
-	"net/http"
 	"context"
+	"fmt"
+	"net/http"
+	"time"
+
 	"github.com/gin-gonic/gin"
 	"go.uber.org/fx"
 
 	"easywish/config"
+	docs "easywish/docs"
 	"easywish/internal/controllers"
 	"easywish/internal/logger"
 	"easywish/internal/routes"
 	"easywish/internal/services"
-	docs "easywish/docs"
+
 	swaggerfiles "github.com/swaggo/files"
 	ginSwagger "github.com/swaggo/gin-swagger"
 )
@@ -35,26 +38,24 @@ func main() {
 		panic(err)
 	}
 
-  defer logger.Sync()
-
 	fx.New(	
-		services.Module,
 		fx.Provide(
+			logger.NewLogger,
 			gin.Default,
-			controllers.NewAuthController,
-			controllers.NewServiceController,
 		),
+		services.Module,
+		controllers.Module,
 		routes.Module,
 
-
 		fx.Invoke(func(lc fx.Lifecycle, router *gin.Engine) {
 
 			// Swagger
 			docs.SwaggerInfo.Schemes = []string{"http"}
 			router.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerfiles.Handler))
 
+			// Gin
 			server := &http.Server{
-				Addr:    ":8080",
+				Addr:    fmt.Sprintf(":%s", config.GetConfig().Port),
 				Handler: router,
 			}
 
diff --git a/backend/internal/controllers/setup.go b/backend/internal/controllers/setup.go
new file mode 100644
index 0000000..a4bf298
--- /dev/null
+++ b/backend/internal/controllers/setup.go
@@ -0,0 +1,12 @@
+package controllers
+
+import (
+    "go.uber.org/fx"
+)
+
+var Module = fx.Module("controllers",
+    fx.Provide(
+			NewServiceController,
+			NewAuthController,
+    ),
+)
diff --git a/backend/internal/logger/logger.go b/backend/internal/logger/logger.go
index 051297e..d2586bd 100644
--- a/backend/internal/logger/logger.go
+++ b/backend/internal/logger/logger.go
@@ -1,17 +1,31 @@
 package logger
+
 import (
 	"sync"
 
-	"go.uber.org/zap"
 	"easywish/config"
+
+	"go.uber.org/zap"
 )
 
+type Logger interface {
+	Get() *zap.Logger	
+	Sync() error
+}
+
+type loggerImpl struct {
+}
+
+func NewLogger() Logger {
+	return &loggerImpl{}
+}
+
 var (
 	logger *zap.Logger
 	once   sync.Once
 )
 
-func GetLogger() *zap.Logger {
+func (l *loggerImpl) Get() *zap.Logger {
 	once.Do(func() {
 		var err error
 		cfg := config.GetConfig()
@@ -28,6 +42,6 @@ func GetLogger() *zap.Logger {
 	return logger
 }
 
-func Sync() error {
+func (l *loggerImpl) Sync() error {
 	return logger.Sync()
 }