Support HttpDriverFactory

composer.json

@@ -25,12 +25,13 @@
             "email": "[email protected]"
         }
     ],
+    "minimum-stability": "dev",
     "require": {
         "php": ">=8.1",
         "amphp/amp": "^3",
         "amphp/cache": "^2",
-        "amphp/http": "^2",
-        "amphp/http-server": "^3",
+        "amphp/http": "dev-structured-fields as v2.1.0",
+        "amphp/http-server": "dev-http3 as 3.1",
         "amphp/socket": "^2",
         "nikic/fast-route": "^1",
         "psr/log": "^1|^2|^3"

src/Router.php

@@ -6,13 +6,18 @@
 use Amp\ForbidCloning;
 use Amp\ForbidSerialization;
 use Amp\Http\HttpStatus;
+use Amp\Http\Server\Driver\Client;
+use Amp\Http\Server\Driver\HttpDriver;
+use Amp\Http\Server\Driver\HttpDriverFactory;
+use Amp\Http\Server\Driver\HttpDriverMergedFactory;
+use Amp\Http\Server\Driver\HttpDriverMiddleware;
 use Amp\Http\Server\RequestHandler\ClosureRequestHandler;
 use FastRoute\Dispatcher;
 use FastRoute\RouteCollector;
 use Psr\Log\LoggerInterface;
 use function FastRoute\simpleDispatcher;
 
-final class Router implements RequestHandler
+final class Router implements RequestHandler, HttpDriverMiddleware
 {
     use ForbidCloning;
     use ForbidSerialization;
@@ -113,6 +118,26 @@ public function handleRequest(Request $request): Response
         }
     }
 
+    public function createHttpDriver(HttpDriverFactory $factory, RequestHandler $requestHandler, ErrorHandler $errorHandler, Client $client): HttpDriver
+    {
+        $middlewares = [];
+        foreach ($this->routes as [, , $routeHandler]) {
+            if ($requestHandler instanceof HttpDriverMiddleware) {
+                $middlewares[] = $routeHandler;
+            }
+        }
+
+        if ($middlewares) {
+            if (count($middlewares) == 1) {
+                return $middlewares[0]->createHttpDriver($factory, $requestHandler, $errorHandler, $client);
+            }
+
+            $factory = new HttpDriverMergedFactory($middlewares, $factory);
+        }
+
+        return $factory->createHttpDriver($requestHandler, $errorHandler, $client);
+    }
+
     /**
      * Merge another router's routes into this router.
      *