diff --git a/examples/relational/Storage/RefreshTokenStorage.php b/examples/relational/Storage/RefreshTokenStorage.php
index 4a32f92d..8022cc8b 100644
--- a/examples/relational/Storage/RefreshTokenStorage.php
+++ b/examples/relational/Storage/RefreshTokenStorage.php
@@ -6,6 +6,8 @@ use League\OAuth2\Server\Storage\RefreshTokenInterface;
 use League\OAuth2\Server\Storage\Adapter;
 use League\OAuth2\Server\Entity\RefreshTokenEntity;
 
+use Illuminate\Database\Capsule\Manager as Capsule;
+
 class RefreshTokenStorage extends Adapter implements RefreshTokenInterface
 {
     /**
@@ -21,7 +23,12 @@ class RefreshTokenStorage extends Adapter implements RefreshTokenInterface
      */
     public function create($token, $expireTime, $accessToken)
     {
-        die(var_dump(__METHOD__, func_get_args()));
+        Capsule::table('oauth_refresh_tokens')
+                    ->insert([
+                        'refresh_token'     =>  $token,
+                        'access_token'    =>  $accessToken,
+                        'expire_time'   =>  $expireTime
+                    ]);
     }
 
     /**
diff --git a/examples/relational/authcode_grant.php b/examples/relational/authcode_grant.php
index 960147f2..51774676 100644
--- a/examples/relational/authcode_grant.php
+++ b/examples/relational/authcode_grant.php
@@ -1,24 +1,22 @@
 <?php
-
-namespace OAuth2Server\RelationalExample;
-
 use \Orno\Http\Request;
 use \Orno\Http\Response;
 use \Orno\Http\JsonResponse;
-use \Orno\Http\Exception\MethodNotAllowedException;
-
-use Illuminate\Database\Capsule\Manager as Capsule;
-
-// use \League\OAuth2\Server\Exception;
+use \Orno\Http\Exception\NotFoundException;
+use \League\OAuth2\Server\ResourceServer;
 use \RelationalExample\Storage;
 use \RelationalExample\Model;
+use Illuminate\Database\Capsule\Manager as Capsule;
+use \League\Event\Emitter;
 
 include __DIR__.'/vendor/autoload.php';
 
 // Routing setup
+$request = (new Request)->createFromGlobals();
 $router = new \Orno\Route\RouteCollection;
+$router->setStrategy(\Orno\Route\RouteStrategyInterface::RESTFUL_STRATEGY);
 
-// Set up the OAuth 2.0 resource server
+// Set up the OAuth 2.0 authorization server
 $server = new \League\OAuth2\Server\AuthorizationServer;
 $server->setSessionStorage(new Storage\SessionStorage);
 $server->setAccessTokenStorage(new Storage\AccessTokenStorage);
@@ -30,8 +28,12 @@ $server->setAuthCodeStorage(new Storage\AuthCodeStorage);
 $authCodeGrant = new \League\OAuth2\Server\Grant\AuthCodeGrant();
 $server->addGrantType($authCodeGrant);
 
+$refrehTokenGrant = new \League\OAuth2\Server\Grant\RefreshTokenGrant();
+$server->addGrantType($refrehTokenGrant);
+
+// Routing setup
 $request = (new Request)->createFromGlobals();
-$server->setRequest($request);
+$router = new \Orno\Route\RouteCollection;
 
 $router->get('/authorize', function (Request $request) use ($server) {
 
@@ -96,5 +98,42 @@ $router->post('/access_token', function (Request $request) use ($server) {
 });
 
 $dispatcher = $router->getDispatcher();
-$response = $dispatcher->dispatch($request->getMethod(), $request->getPathInfo());
-$response->send();
+
+try {
+
+    // A successful response
+    $response = $dispatcher->dispatch(
+        $request->getMethod(),
+        $request->getPathInfo()
+    );
+
+} catch (\Orno\Http\Exception $e) {
+
+    // A failed response
+    $response = $e->getJsonResponse();
+    $response->setContent(json_encode(['status_code' => $e->getStatusCode(), 'message' => $e->getMessage()]));
+
+} catch (\League\OAuth2\Server\Exception\OAuthException $e) {
+
+    $response = new Response(json_encode([
+        'error'     =>  $e->errorType,
+        'message'   =>  $e->getMessage()
+    ]), $e->httpStatusCode);
+
+    foreach ($e->getHttpHeaders() as $header) {
+        $response->headers($header);
+    }
+
+} catch (\Exception $e) {
+
+    $response = new Orno\Http\Response;
+    $response->setStatusCode(500);
+    $response->setContent(json_encode(['status_code' => 500, 'message' => $e->getMessage()]));
+
+} finally {
+
+    // Return the response
+    $response->headers->set('Content-type', 'application/json');
+    $response->send();
+
+}
diff --git a/examples/relational/other_grants.php b/examples/relational/other_grants.php
index 495af38b..a1c8c442 100644
--- a/examples/relational/other_grants.php
+++ b/examples/relational/other_grants.php
@@ -43,8 +43,8 @@ $passwordGrant->setVerifyCredentialsCallback(function ($username, $password) {
 });
 $server->addGrantType($passwordGrant);
 
-// $refrehTokenGrant = new \League\OAuth2\Server\Grant\RefreshTokenGrant();
-// $server->addGrantType($refrehTokenGrant);
+$refrehTokenGrant = new \League\OAuth2\Server\Grant\RefreshTokenGrant();
+$server->addGrantType($refrehTokenGrant);
 
 // Routing setup
 $request = (new Request)->createFromGlobals();
diff --git a/tests/fuzz/grant-password.yml b/tests/fuzz/grant-password.yml
index 96bcfbea..0348c5f2 100644
--- a/tests/fuzz/grant-password.yml
+++ b/tests/fuzz/grant-password.yml
@@ -80,6 +80,9 @@ response:
         -
             key: access_token
             valueRegex: /([a-zA-Z0-9]*)/
+        -
+            key: refresh_token
+            valueRegex: /([a-zA-Z0-9]*)/
         -
             key: token_type
             value: Bearer
\ No newline at end of file