diff --git a/src/Controller/ConsoleApiController.php b/src/Controller/ConsoleApiController.php
index 0f08ff4..e3bdc6c 100644
--- a/src/Controller/ConsoleApiController.php
+++ b/src/Controller/ConsoleApiController.php
@@ -75,8 +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);
         
@@ -130,8 +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();
@@ -195,8 +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);
         
@@ -245,8 +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);
         
@@ -294,8 +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);
         
@@ -370,8 +375,9 @@ 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);
         
@@ -403,8 +409,9 @@ 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)
@@ -460,8 +467,9 @@ 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([]);