# Response Your Slim app’s routes and middleware are given a PSR-7 response object that represents the current HTTP response to be returned to the client. The response object implements the[PSR-7 ResponseInterface](http://www.php-fig.org/psr/psr-7/#3-2-1-psr-http-message-responseinterface)with which you can inspect and manipulate the HTTP response status, headers, and body. > Slim應用程序的路由和中間件都有一個PSR-7響應對象，該對象表示當前要返回給客戶機的HTTP響應。response對象實現了[PSR-7 ResponseInterface](http://www.php-fig.org/psr/psr-7/#3-2-1-psr-http-message-responseinterface)，您可以使用該對象檢查和操作HTTP響應狀態、頭和正文。 ## 如何獲取響應對象 The PSR-7 response object is injected into your Slim application routes as the second argument to the route callback like this: > 將PSR-7響應對象作為路由回調的第二個參數注入到slim應用程序路由中，如下所示: ~~~php <?php use Psr\Http\Message\ResponseInterface as Response; use Psr\Http\Message\ServerRequestInterface as Request; use Slim\Factory\AppFactory; require __DIR__ . '/../vendor/autoload.php'; $app = AppFactory::create(); $app->get('/hello', function (ServerRequest $request, Response $response) { $response->getBody()->write('Hello World'); return $response; }); $app->run(); ~~~ Figure 1: Inject PSR-7 response into application route callback.