moved to authentication middleware

src/Middleware/AuthenticationServerMiddleware.php

@@ -0,0 +1,51 @@
+<?php
+
+namespace League\OAuth2\Server\Middleware;
+
+use League\OAuth2\Server\Exception\OAuthServerException;
+use League\OAuth2\Server\Server;
+use Psr\Http\Message\ResponseInterface;
+use Psr\Http\Message\ServerRequestInterface;
+
+class AuthenticationServerMiddleware
+{
+    /**
+     * @var \League\OAuth2\Server\Server
+     */
+    private $server;
+
+    /**
+     * AuthenticationServerMiddleware constructor.
+     *
+     * @param \League\OAuth2\Server\Server $server
+     */
+    public function __construct(Server $server)
+    {
+        $this->server = $server;
+    }
+
+    /**
+     * @param \Psr\Http\Message\ServerRequestInterface $request
+     * @param \Psr\Http\Message\ResponseInterface      $response
+     * @param callable                                 $next
+     *
+     * @return \Psr\Http\Message\ResponseInterface
+     */
+    public function __invoke(ServerRequestInterface $request, ResponseInterface $response, callable $next)
+    {
+        try {
+            $response = $server->respondToRequest($request, $response);
+        } catch (OAuthServerException $exception) {
+            return $exception->generateHttpResponse($response);
+        } catch (\Exception $exception) {
+            return $response->withStatus(500)->write($exception->getMessage());
+        }
+
+        if (in_array($response->getStatusCode(), [400, 401, 500])) {
+            return $response;
+        }
+
+        // Pass the request and response on to the next responder in the chain
+        return $next($request, $response);
+    }
+}

src/Middleware/ResourceServerMiddleware.php

@@ -14,7 +14,6 @@ class ResourceServerMiddleware
      */
     private $server;
 
-
     /**
      * ResourceServerMiddleware constructor.
      *