Zend Expressive in 15 Minutes

Jun 14, 2016Download as PPTX, PDF3 likes1,229 views

Zend Expressive is a PHP microframework that implements the PSR-7 standard for HTTP messages. It uses a middleware approach where reusable code interacts with requests and responses. The document provides an example of creating an application, adding a route, and using middleware like sessions. It also gives resources for learning more about Zend Expressive.

Zend Expressive in 15
Minutes
Chris Tankersley
@dragonmantank
NomadPHP, March 2016
NomadPHP, March 2016 1

Who Am I
• PHP Programmer for over 11 years
• Sysadmin/DevOps for around 9 years
• https://github.com/dragonmantank
• Author of “Docker for Developers”
• Reigning, Defending, Undisputed PHP
MTG Champion of the World
NomadPHP, March 2016 2

It’s the Future! And Now!
• A Microframework
• Implements PSR-7
• Fully functional Middleware stack
• The beginnings of Zend Framework 3
NomadPHP, March 2016 4

The Microframework
NomadPHP, March 2016 5

The Microframework
• Lightweight wrapper around other libraries
• PSR-7 Compliant
• Supports multiple routers
• Supports multiple service locators
• Supports multiple templating systems
NomadPHP, March 2016 6

$NomadPHP, March 2016 7 <?php use ZendExpressiveAppFactory; chdir(dirname(__DIR__)); require 'vendor/autoload.php'; $app = AppFactory::create(); $app->get('/', function ($request, $response, $next) { $response->getBody()->write('Hello, world!'); return $response; }); $app->pipeRoutingMiddleware(); $app->pipeDispatchMiddleware(); $app->run();$

Not just for basic sites
• Provides support for Controllers, Dependency Injection, and
Templating
• Right now feels somewhere between a microframework and full stack
like ZF2 or symfony2
NomadPHP, March 2016 8

$NomadPHP, March 2016 9 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }$

PSR-7 Implementation
NomadPHP, March 2016 10

What is PSR-7?
• HTTP Message Interfaces
• Provides a consistent interface for HTTP requests and responses
• Allows multiple libraries to read and generate HTTP messages more
easily
NomadPHP, March 2016 11

$NomadPHP, March 2016 12 <?php use ZendExpressiveAppFactory; chdir(dirname(__DIR__)); require 'vendor/autoload.php'; $app = AppFactory::create(); $app->get('/', function ($request, $response, $next) { $response->getBody()->write('Hello, world!'); return $response; }); $app->pipeRoutingMiddleware(); $app->pipeDispatchMiddleware(); $app->run();$

$NomadPHP, March 2016 13 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }$

Built around Middleware
• Middleware interacts with the Request and Response
• Can be used for things like authentication, authorization, session
handling… anything “application”-y
• Almost everything is middleware, even routes
NomadPHP, March 2016 15

$NomadPHP, March 2016 16 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }$

$NomadPHP, March 2016 17 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }$

$NomadPHP, March 2016 18 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }$

$NomadPHP, March 2016 19 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }$

Resources
• Documentation - https://zend-expressive.readthedocs.org/en/latest/
• Skeleton App - https://github.com/zendframework/zend-expressive-
skeleton
• My Demo App - https://github.com/dragonmantank/phparch-zend-
expressive
• Session Middleware -
https://github.com/dragonmantank/zendexpressive-session-
middleware
NomadPHP, March 2016 21

http://ctankersley.com
chris@ctankersley.com
@dragonmantank
https://joind.in/talk/d9813
NomadPHP, March 2016 22

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Zend Expressive in 15 Minutes

1. Zend Expressive in 15 Minutes Chris Tankersley @dragonmantank NomadPHP, March 2016 NomadPHP, March 2016 1

2. Who Am I • PHP Programmer for over 11 years • Sysadmin/DevOps for around 9 years • https://github.com/dragonmantank • Author of “Docker for Developers” • Reigning, Defending, Undisputed PHP MTG Champion of the World NomadPHP, March 2016 2

3. What is it? NomadPHP, March 2016 3

4. It’s the Future! And Now! • A Microframework • Implements PSR-7 • Fully functional Middleware stack • The beginnings of Zend Framework 3 NomadPHP, March 2016 4

5. The Microframework NomadPHP, March 2016 5

6. The Microframework • Lightweight wrapper around other libraries • PSR-7 Compliant • Supports multiple routers • Supports multiple service locators • Supports multiple templating systems NomadPHP, March 2016 6

7. NomadPHP, March 2016 7 <?php use ZendExpressiveAppFactory; chdir(dirname(__DIR__)); require 'vendor/autoload.php'; $app = AppFactory::create(); $app->get('/', function ($request, $response, $next) { $response->getBody()->write('Hello, world!'); return $response; }); $app->pipeRoutingMiddleware(); $app->pipeDispatchMiddleware(); $app->run();

8. Not just for basic sites • Provides support for Controllers, Dependency Injection, and Templating • Right now feels somewhere between a microframework and full stack like ZF2 or symfony2 NomadPHP, March 2016 8

9. NomadPHP, March 2016 9 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }

10. PSR-7 Implementation NomadPHP, March 2016 10

11. What is PSR-7? • HTTP Message Interfaces • Provides a consistent interface for HTTP requests and responses • Allows multiple libraries to read and generate HTTP messages more easily NomadPHP, March 2016 11

12. NomadPHP, March 2016 12 <?php use ZendExpressiveAppFactory; chdir(dirname(__DIR__)); require 'vendor/autoload.php'; $app = AppFactory::create(); $app->get('/', function ($request, $response, $next) { $response->getBody()->write('Hello, world!'); return $response; }); $app->pipeRoutingMiddleware(); $app->pipeDispatchMiddleware(); $app->run();

13. NomadPHP, March 2016 13 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }

14. Middleware NomadPHP, March 2016 14

15. Built around Middleware • Middleware interacts with the Request and Response • Can be used for things like authentication, authorization, session handling… anything “application”-y • Almost everything is middleware, even routes NomadPHP, March 2016 15

16. NomadPHP, March 2016 16 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }

17. NomadPHP, March 2016 17 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }

18. NomadPHP, March 2016 18 class SessionMiddleware { protected $sessionContainer; // ... public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { $request = $request ->withAttribute('session', $this->sessionContainer->getSession()); if ($next) { return $next($request, $response); } return $response; } }

19. NomadPHP, March 2016 19 use PsrHttpMessageResponseInterface; use PsrHttpMessageServerRequestInterface; /** * Renders out the homepage * * @param ServerRequestInterface $request * @param ResponseInterface $response * @param callable|null $next * * @return HtmlResponse */ public function __invoke( ServerRequestInterface $request, ResponseInterface $response, callable $next = null) { return new HtmlResponse($this->template->render('index::homepage')); }

20. Getting Started NomadPHP, March 2016 20

21. Resources • Documentation - https://zend-expressive.readthedocs.org/en/latest/ • Skeleton App - https://github.com/zendframework/zend-expressive- skeleton • My Demo App - https://github.com/dragonmantank/phparch-zend- expressive • Session Middleware - https://github.com/dragonmantank/zendexpressive-sessionmiddleware NomadPHP, March 2016 21

22. http://ctankersley.com [email protected] @dragonmantank https://joind.in/talk/d9813 NomadPHP, March 2016 22

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