Silex - Symfony goes micro

Talk on the Silex microframework as given at symfonyday 2011.

2. • phpBB • Symfony2 • Silex igorw
4. Silex Symfony goes micro μ
5. Silex is not Symfony
6. Microframework
8. What? • Bare bones • Routes mapped to controllers • The ‘C’ of ‘MVC’ • REST • Single file app
9. Why?
10. Sometimes a full-stack framework is too much for a simple task.
11. simple
12. What makes silex special?
13. • concise • extensible • testable
14. • concise • extensible • testable
15. • concise • extensible • testable
16. • concise • extensible • testable
17. • concise • extensible • testable
18. Http Kernel Interface
19. Response handle(Request $request)
20. client
21. request client
22. reponse client request
23. clean
24. PSR-0
26. Silex is not Symfony
27. Silex is a user interface for Symfony
28. require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });
29. Phar require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });
30. Application require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; });
31. require_once __DIR__.'/silex.phar'; $app = new Silex\Application(); $app->get('/', function() { return "Hello world!"; }); Controller
32. $app->run();
34. <IfModule mod_rewrite.c> RewriteEngine On RewriteBase /some/path RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteRule ^(.*)$ index.php [QSA,L] </IfModule>
35. server { location / { if (-f $request_filename) { break; } rewrite ^(.*) /index.php last; } location ~ index\.php$ { fastcgi_pass /var/run/php5-fpm.sock; fastcgi_index index.php; include fastcgi_params; } }
36. Wait a minute!
37. Lambdas λ
38. $(function () { $("a").click(function (event) { alert("Thanks for visiting!"); }); });
39. PHP 5.3
40. $f = function ($a, $b) { return $a + $b; }; $f(1, 2);
41. lazy $f = function () { exit; };
42. nested $f = function () { return function () { return true; }; }; $g = $f(); $value = $g();
43. scope $outer = 'world'; $f = function () use ($outer) { $inner = 'hello'; return "$inner $outer"; }; => "hello world"
44. scope $helloWorld = function () { $outer = 'world'; $f = function () use ($outer) { $inner = 'hello'; return "$inner $outer"; }; return $f(); }
45. passing $output = function ($info) { echo $info."\n"; }; $doStuff = function ($output) { $output('doing some magic'); doMagic(); $output('did some magic'); };
46. factory $userFactory = function ($name) { return new User($name); }; // ... $user = $userFactory($_POST['name']);
47. Usage
48. $app->get('/', function () { return "Hello world!"; });
49. Dynamic Routing
50. $app->get('/hello/{name}', function ($name) use ($app) { return "Hello ".$app->escape($name); });
51. $app->get('/hello/{name}', function ($name) use ($app) { return "Hello ".$app->escape($name); });
52. Controllers
53. assert $app->get('/blog/{id}', function ($id) { ... }) ->assert('id', '\d+');
54. value $app->get('/{page}', function ($page) { ... }) ->value('page', 'index');
55. bind $app->get('/', function () { ... }) ->bind('homepage'); $app['url_generator']->generate('homepage')
56. bind $app->get('/blog/{id}', function ($id) { ... }) ->bind('blog_post'); $app['url_generator'] ->generate('blog_post', array('id' => $id))
57. convert $app->get('/blog/{post}', function (Post $post) { ... }) ->convert('post', function ($post) use ($app) { $id = (int) $post; return $app['posts']->find($id); });
58. Before & After
59. $app->before(function () { ... }); $app->get('/', function () { ... }); $app->after(function () { ... });
60. $app->before(function (Request $request) { $loggedIn = $request ->getSession() ->get('logged_in'); if (!$loggedIn) { return new RedirectResponse('/login'); } });
61. $app->after(function (Request $request, Response $response) { // tweak the Response });
62. $app->after(function ( Request $request, Response $response, ) use ($app) { $response->headers->set('x-csrf-token', $app['csrf_token']); });
63. REST
64. • get • post • put • delete • head • options • patch
65. $app->get('/posts/{id}', ...); $app->post('/posts', ...); $app->put('/posts/{id}', ...); $app->delete('/post/{id}', ...);
66. use Symfony\Component\HttpFoundation\Request; use Symfony\Component\HttpFoundation\Response; $app->post('/message', function (Request $request) { mail( 'me@me.me', 'New message', $request->get('body') ); return new Response('Email has been sent!', 201); });
67. Caching
68. Error Handling
69. use Symfony\Component\HttpFoundation\Response; $app->error(function (\Exception $e, $code) { return new Response('Whoops!', $code); });
70. use Symfony\Component\HttpKernel\Exception\NotFoundHttpException; throw new NotFoundHttpException("Could not find what you were looking for.");
71. $app->abort(404, "Could not find the thing.");
72. $app['debug'] = true;
73. Redirecting
74. $app->get('/', function () use ($app) { return $app->redirect('/hello'); });
75. Pimple
76. 50 NCLOC
77. Symfony2 DIC Pimple
78. Symfony2 DIC Pimple Container
79. Symfony2 DIC Pimple Container Builder
80. Symfony2 DIC Pimple Container Builder Extension
81. Symfony2 DIC Pimple Container Builder Extension Loader
82. Symfony2 DIC Pimple Container Builder Extension XML/Yaml Loader
83. Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader
84. Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader Container
85. Symfony2 DIC Pimple Container Builder Extension XML/Yaml Compiler Loader Container ServiceProvider ( )
86. $container = new Pimple();
87. $app = new Silex\Application();
88. Parameters $app['some_parameter'] = 'value'; $app['asset.host'] = 'http://cdn.mysite.com/'; $app['database.dsn'] = 'mysql:dbname=myapp';
89. Services $app['some_service'] = function () { return new Service(); };
90. $service = $app['some_service'];
91. Dependencies $app['some_service'] = function ($app) { return new Service( $app['some_other_service'], $app['some_service.config'] ); };
92. Shared $app['some_service'] = $app->share(function () { return new Service(); });
93. Protected $app['lambda_parameter'] = $app->protect( function ($a, $b) { return $a + $b; }); // will not execute the lambda $add = $app['lambda_parameter']; // calling it now echo $add(2, 3);
94. Exposed Services • debug • request • autoloader • routes • controllers • dispatcher • resolver • kernel
95. Service Providers
96. interface ServiceProviderInterface { function register(Application $app); }
97. Core Service Providers • doctrine • form • http cache • monolog • session • swiftmailer • symfony bridges • translation • twig • url generator • validator
98. Twig
99. $app->register( new Silex\ServiceProvider\TwigServiceProvider(), array( 'twig.path' => __DIR__.'/views', 'twig.class_path' => __DIR__.'/vendor/twig/lib', ) );
100. $app->get('/', function () use ($app) { return $app['twig']->render('hello.twig'); });
101. 3rd Party • doctrine orm • pomm (postgres) • predis • mongo • KyotoTycoon • memcache • rest • markdown • gravatar • buzz • config • solr • profiler • ...
102. Functional Testing
103. • src • app.php • web • index.php • tests • bootstrap.php • YourTest.php
104. src/app.php require_once __DIR__.'/../vendor/silex.phar'; ... return $app;
105. web/index.php $app = require_once __DIR__.'/../src/app.php'; $app->run();
106. tests/bootstrap.php require_once __DIR__.'/../vendor/silex.phar';
107. use Silex\WebTestCase; class YourTest extends WebTestCase { public function createApp() { return require __DIR__.'/../src/app.php'; } // tests... } tests/YourTest.php
108. public function testAbout() { $client = $this->createClient(); $client->request('GET', '/about'); $response = $client->getResponse(); $this->assertTrue($response->isOk()); $this->assertContains('trashbin', $response->getContent()); $this->assertContains('github', $response->getContent()); $this->assertContains('igorw', $response->getContent()); }
109. phpunit.xml.dist <?xml version="1.0" encoding="UTF-8"?> <phpunit backupGlobals="false" backupStaticAttributes="false" colors="true" convertErrorsToExceptions="true" convertNoticesToExceptions="true" convertWarningsToExceptions="true" processIsolation="false" stopOnFailure="false" syntaxCheck="false" bootstrap="tests/bootstrap.php" > <testsuites> <testsuite name="YourApp Test Suite"> <directory>./tests/</directory> </testsuite> </testsuites> </phpunit>
110. $ phpunit
113. • smallish sites • well-defined scope • prototyping • restful apis When to use
114. and many more...
115. The future
116. The future • Cookbooks
117. The future • Cookbooks • Best practices
118. The future • Cookbooks • Best practices • Symfony2 integration
119. The future • Cookbooks • Best practices • Symfony2 integration • FOSUserBundle
120. The future • Cookbooks • Best practices • Symfony2 integration • FOSUserBundle • Composer
121. on github fabpot/Silex fabpot/Pimple
122. silex.sensiolabs.org
123. Ω
124. Questions? joind.in/3699 @igorwesome speakerdeck.com /u/igorw