diff --git a/src/Potter/Http/Server/HttpServerAwareInterface.php b/src/Potter/Http/Server/HttpServerAwareInterface.php
index c5197b3..be68c8a 100644
--- a/src/Potter/Http/Server/HttpServerAwareInterface.php
+++ b/src/Potter/Http/Server/HttpServerAwareInterface.php
@@ -11,4 +11,6 @@ interface HttpServerAwareInterface extends AwareInterface
 {
     public function getHttpServer(): HttpServer;
     public function hasHttpServer(): bool;
+    public function withHttpServer(HttpServer $httpServer): static;
+    public function withoutHttpServer(): static;
 }
diff --git a/src/Potter/Http/Server/HttpServerAwareTrait.php b/src/Potter/Http/Server/HttpServerAwareTrait.php
index a2da572..18fa01d 100644
--- a/src/Potter/Http/Server/HttpServerAwareTrait.php
+++ b/src/Potter/Http/Server/HttpServerAwareTrait.php
@@ -4,11 +4,41 @@ declare(strict_types=1);
 
 namespace Potter\Http\Server;
 
+use \React\Http\HttpServer;
+
 trait HttpServerAwareTrait 
 {
     private const string HTTP_SERVER = 'httpServer';
     
-    final public function getHttpServer(): HttpServer;
-    final public function hasHttpServer(): bool;
-    final protected function setHttpServer(HttpServer $httpServer): HttpServer;
+    final public function getHttpServer(): HttpServer
+    {
+        return $this->get(self::HTTP_SERVER);
+    }
+    
+    final public function hasHttpServer(): bool
+    {
+        return $this->has(self::HTTP_SERVER);
+    }
+    
+    final protected function setHttpServer(HttpServer $httpServer): HttpServer
+    {
+        return $this->set(self::HTTP_SERVER, $httpServer);
+    }
+    
+    final public function withHttpServer(HttpServer $httpServer): static
+    {
+        return $this->with(self::HTTP_SERVER, $httpServer);
+    }
+    
+    final public function withoutHttpServer(): static
+    {
+        return $this->without(self::HTTP_SERVER);
+    }
+    
+    abstract public function get(string $key): mixed;
+    abstract public function has(string $key): mixed;
+    abstract protected function set(string $key, mixed $value): mixed;
+    abstract protected function unset(string $key): null;
+    abstract public function with(string $key, mixed $value): static;
+    abstract public function without(string $key): static;
 }