diff --git a/src/Controller/ConsoleApiController.php b/src/Controller/ConsoleApiController.php
index 0bc7b2c..28c423a 100644
--- a/src/Controller/ConsoleApiController.php
+++ b/src/Controller/ConsoleApiController.php
@@ -30,8 +30,9 @@ class ConsoleApiController extends AbstractController
     // Credentials Management
     public function credentials(Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         if ($request->getMethod() === 'GET') {
             $credentials = $this->entityManager->getRepository(S3Credential::class)->findAll();
@@ -74,8 +75,9 @@ class ConsoleApiController extends AbstractController
 
     public function credentialDetail(int $id, Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $credential = $this->entityManager->getRepository(S3Credential::class)->find($id);
         
@@ -129,8 +131,9 @@ class ConsoleApiController extends AbstractController
     // Buckets Management
     public function buckets(Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         if ($request->getMethod() === 'GET') {
             $buckets = $this->entityManager->getRepository(S3Bucket::class)->findAll();
@@ -194,8 +197,9 @@ class ConsoleApiController extends AbstractController
 
     public function bucketDetail(string $name, Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $bucket = $this->s3Service->findBucketByName($name);
         
@@ -244,8 +248,9 @@ class ConsoleApiController extends AbstractController
     // Objects Management
     public function objects(string $bucketName, Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $bucket = $this->s3Service->findBucketByName($bucketName);
         
@@ -293,8 +298,9 @@ class ConsoleApiController extends AbstractController
 
     public function objectDetail(string $bucketName, string $objectKey, Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $bucket = $this->s3Service->findBucketByName($bucketName);
         
@@ -335,8 +341,9 @@ class ConsoleApiController extends AbstractController
     // Multipart Uploads
     public function multipartUploads(string $bucketName, Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $bucket = $this->s3Service->findBucketByName($bucketName);
         
@@ -368,8 +375,9 @@ class ConsoleApiController extends AbstractController
     // Presigned URLs
     public function presignedUrls(Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         if ($request->getMethod() === 'GET') {
             $urls = $this->entityManager->getRepository(\App\Entity\S3PresignedUrl::class)
@@ -425,8 +433,9 @@ class ConsoleApiController extends AbstractController
     // Statistics
     public function stats(Request $request): JsonResponse
     {
-        if ($resp = $this->checkAuth($request)) {
-            return $resp;
+        $authResp = $this->checkAuth($request);
+        if ($authResp !== null) {
+            return $authResp;
         }
         $credentialCount = $this->entityManager->getRepository(S3Credential::class)->count([]);
         $bucketCount = $this->entityManager->getRepository(S3Bucket::class)->count([]);