Created
November 12, 2015 14:14
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Simple ESI rendering example using Silex and Varnish v4. The render_esi function in Twig renders ESI tags when the right Surrogate-Capability header is thrown, otherwise it uses internal subrequests.
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| { | |
| "require": { | |
| "silex/silex": "1.3.*", | |
| "symfony/twig-bridge": "2.7", | |
| "twig/twig": "1.23.*" | |
| } | |
| } |
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| vcl 4.0; | |
| backend default { | |
| .host = "127.0.0.1"; | |
| .port = "8080"; | |
| } | |
| sub vcl_recv { | |
| set req.http.Surrogate-Capability = "key=ESI/1.0"; | |
| } | |
| sub vcl_backend_response { | |
| if (beresp.http.Surrogate-Control ~ "ESI/1.0") { | |
| unset beresp.http.Surrogate-Control; | |
| set beresp.do_esi = true; | |
| } | |
| } |
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| <?php | |
| if (php_sapi_name() == 'cli-server' && preg_match('/\.(?:png|jpg|jpeg|gif|css|js|ico|ttf|woff)$/', $_SERVER["REQUEST_URI"])) { | |
| return false; | |
| } | |
| date_default_timezone_set('Europe/Brussels'); | |
| require_once __DIR__.'/../vendor/autoload.php'; | |
| use \Symfony\Component\HttpFoundation\Response; | |
| use \Silex\Application; | |
| $app = new Application(); | |
| $app['debug'] = true; | |
| $app->register(new \Silex\Provider\TwigServiceProvider(), array( | |
| 'twig.path' => dirname(__DIR__).'/views', | |
| )); | |
| $app->register(new Silex\Provider\HttpCacheServiceProvider()); | |
| $app->register(new Silex\Provider\HttpFragmentServiceProvider()); | |
| $app->register(new Silex\Provider\UrlGeneratorServiceProvider()); | |
| $app->get('/', function () use ($app) { | |
| $response = new Response($app['twig']->render('index.twig'),200); | |
| $response->setSharedMaxAge(100); | |
| return $response; | |
| })->bind('home'); | |
| $app->get('/header', function () use ($app) { | |
| $response = new Response("Header: ".date('Y-m-d H:i:s'),200); | |
| $response->headers->addCacheControlDirective('no-cache',true); | |
| $response->headers->addCacheControlDirective('no-store',true); | |
| return $response; | |
| })->bind('header'); | |
| $app->get('/footer', function () use ($app) { | |
| $response = new Response("Footer: ".date('Y-m-d H:i:s'),200); | |
| $response->setSharedMaxAge(10); | |
| return $response; | |
| })->bind('footer'); | |
| $app->run(); |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>ESI</title> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /> | |
| </head> | |
| <body> | |
| <h1>{{ render_esi(url('header')) }}</h1> | |
| Main block: {{ "now"|date("Y-m-d H:i:s") }} | |
| <h1>{{ render_esi(url('footer')) }}</h1> | |
| </body> | |
| </html> |
Author
ThijsFeryn
commented
Nov 12, 2015
- index.twig belongs in the "views" folder
- index.php belongs in the "web" folder
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