East Foundation is a universal package to implement the #east philosophy ( http://blog.est.voyage/phpTour2015/ ) with any framework supporting PSR-11 or with Symfony 4+.

6.0.4 2022-04-17 18:08 UTC


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East Foundation is a universal package to implement the #east philosophy with any framework supporting PSR-11 or with Symfony 6.0+. : All public method of objects must return $this or a new instance of $this.

This bundle uses PSR7 requests and responses and do automatically the conversion from Symfony's requests and responses. So your controllers and services can be independent of Symfony. This bundle reuse internally Symfony's components to manage routes and find controller to call.

Quick Example



use Psr\Http\Message\MessageInterface;
use Teknoo\East\Foundation\Client\ResponseInterface;
use Teknoo\East\Foundation\Router\ResultInterface;
use DI\ContainerBuilder;
use Laminas\Diactoros\ServerRequest;
use Laminas\Diactoros\Response\TextResponse;
use Teknoo\East\Foundation\Client\ClientInterface;
use Teknoo\East\Foundation\Manager\ManagerInterface;
use Teknoo\East\Foundation\Middleware\MiddlewareInterface;
use Teknoo\East\Foundation\Recipe\RecipeInterface;
use Teknoo\East\Foundation\Router\Result;
use Teknoo\East\Foundation\Router\RouterInterface;

use function DI\decorate;

require_once 'vendor/autoload.php';

//Simulate client, accepts responses from controller and pass them to the "framework" or lower layer to send them to
//the browser.
$client = new class implements ClientInterface {
    private ResponseInterface | MessageInterface | null $response = null;

    private bool $inSilentlyMode = false;

    public function updateResponse(callable $modifier): ClientInterface
        $modifier($this, $this->response);

        return $this;

    public function acceptResponse(ResponseInterface | MessageInterface $response): ClientInterface
        $this->response = $response;

        return $this;

    public function sendResponse(
        ResponseInterface | MessageInterface | null $response = null,
        bool $silently = false
    ): ClientInterface
        $silently = $silently || $this->inSilentlyMode;

        if (null !== $response) {

        if (true === $silently && null === $this->response) {
            return $this;

        if ($this->response instanceof  MessageInterface) {
            print $this->response->getBody() . PHP_EOL;
        } else {
            print $this->response . PHP_EOL;

        return $this;

    public function errorInRequest(Throwable $throwable, bool $silently = false): ClientInterface
        print $throwable->getMessage() . PHP_EOL;

        return $this;

    public function mustSendAResponse(): ClientInterface
        $this->inSilentlyMode = false;

        return $this;

    public function sendAResponseIsOptional(): ClientInterface
        $this->inSilentlyMode = true;

        return $this;

//First controller / endpoint, dedicated for the request /foo
$endPoint1 = static function (MessageInterface $message, ClientInterface $client) {
        new TextResponse('request /bar, endpoint 1, value : ' . $message->getQueryParams()['value'])

//Second controller / endpoint, dedicated for the request /bar
$endPoint2 = static function (ClientInterface $client, string $value) {
        new class ($value) implements ResponseInterface {
            public function __construct(
                private string $value,
            ) {

            public function __toString()
                return "request /bar, endpoint 2, value : {$this->value}";

 * Simulate router
$router = new class($endPoint1, $endPoint2) implements RouterInterface {
     * @var callable
    private $endPoint1;

     * @var callable
    private $endPoint2;

    public function __construct(callable $endPoint1 , callable $endPoint2)
        $this->endPoint1 = $endPoint1;
        $this->endPoint2 = $endPoint2;

    public function execute(
        ClientInterface $client ,
        MessageInterface $message,
        ManagerInterface $manager
    ): MiddlewareInterface
        $uri = (string) $message->getUri();

            ResultInterface::class => match ($uri) {
                '/foo' => new Result($this->endPoint1),
                '/bar' => new Result($this->endPoint2),
        $manager->continueExecution($client, $message);

        return $this;

$builder = new ContainerBuilder();
    RouterInterface::class => $router,

    RecipeInterface::class => decorate(function ($previous) use ($router) {
        if ($previous instanceof RecipeInterface) {
            $previous = $previous->registerMiddleware(

        return $previous;

$container = $builder->build();

//Simulate Server request reception
$request1 = new ServerRequest([], [], '/foo', 'GET');
$request1 = $request1->withQueryParams(['value' => 'bar']);
$request2 = new ServerRequest([], [], '/bar', 'GET');
$request2 = $request2->withQueryParams(['value' => 'foo']);

$manager = $container->get(ManagerInterface::class);
$manager->receiveRequest($client, $request1);
//Print: request /bar, endpoint 1, value : bar
$manager->receiveRequest($client, $request2);
//Print: request /bar, endpoint 2, value : foo

Support this project

This project is free and will remain free, but it is developed on my personal time. If you like it and help me maintain it and evolve it, don't hesitate to support me on Patreon. Thanks :) Richard.

Installation & Requirements

To install this library with composer, run this command :

composer require teknoo/east-foundation

To install with Symfony

composer require teknoo/composer-install
composer require teknoo/east-foundation-symfony  

This library requires :

* PHP 8.1+
* A PHP autoloader (Composer is recommended)
* Teknoo/Immutable.
* Teknoo/States.
* Teknoo/Recipe.
* Optional: Symfony 6.0+

News from Teknoo East Foundation 6.0

This library requires PHP 8.1 or newer and it's only compatible with Symfony 6.1 or newer :

  • Constants are final in SessionMiddleware, processors, routers and sessions components.
  • Use readonly for immutables objects (Processor and routers' results).
  • Support Fibers in main Cookbook and RecipeEndPoint. RecipeEndPoint accepts also bowl and FiberRecipeBowl.
  • Remove support of PHP 8.0 and Symfony 5.4 and below.

News from Teknoo East Foundation 5.0

This library requires PHP 8.0 or newer and it's only compatible with Symfony 5.2 or newer :

  • Migrate to PHP 8.0+
  • Remove support of Symfony 4.4, only 5.2+
  • Constructor Property Promotion
  • Non-capturing catches
  • switch to str_contains
  • Messenger's executor use an empty manager and clone it
  • Add method to configure client's behavior when a it must send a missing response (silently or throw an exception)
  • Add ClientInterface::mustSendAResponse
  • Add ClientInterface::sendAResponseIsOptional
  • Processor will configure in non silent mode if a compatible callable is available and was returned by Router
  • This behavior can be disable by set teknoo.east.client.must_send_response to false in DI
  • Move ClientInterface to Teknoo\East\Foundation\Client from Teknoo\East\Foundation\Http
  • Add Teknoo\East\Foundation\Client\ResultInterface
  • ClientInterface accept also ResultInterface instead PSR's message
  • All clients implementations adopts new client interfaces
  • Symfony Clients implementations supports ResultInterface and JsonSerializable responses

News from Teknoo East Foundation 4.0

This library requires PHP 7.4 or newer and it's only compatible with Symfony 4.4 or newer :

  • Switch to States 4.1.9 and PHPStan 0.12.79
  • Prepare library to be used in non HTTP context
  • Use MessageInterface instead of ServerRequestInterface
  • Cookbook and ProcessorCookbook use BaseCookbookTrait
  • Add PSR11 Message only implementation
  • Add MessageFactory
  • Update Client Interface to use MessageInterface instead of RequestInterface
  • Add Recipe executor dedicated to Symfony Messenger
  • Add Client dedicated to Symfony Messenger
  • Remove some public services

News from Teknoo East Foundation 3.0

This library requires PHP 7.4 or newer and it's only compatible with Symfony 4.4 or newer :

  • Remove Symfony Template component (integration deprecated into symfony)
  • Create EngineInterface to allow creation of adapter to any templating Engine
  • Create ResultInterface to allow asynchrone template rendering for callback streaming
  • Create Twig Engine implementing EngineInterface and ResultInterface
  • Remove 'east.controller.service' tag (not used)
  • Add east.endpoint.template to inject Twig engine adapter
  • Fix services definitions
  • Complete tests
  • Migrate universal folder in src to src's root and remove legacy support

News from Teknoo East Foundation 2.0

This library requires PHP 7.4 or newer and it's only compatible with Symfony 4.4 or newer :

  • PHP 7.4 is the minimum required
  • Switch to typed properties
  • Remove some PHP useless DockBlocks
  • Replace array_merge by "..." operators for integer indexed arrays
  • Support zendframework/zend-diactoros 2.2
  • Restrict to Symfony 4.4 or 5.+ and remove some deprecated
  • Set Teknoo\East\Foundation\Manager\ManagerInterface and Teknoo\East\Foundation\Http\ClientInterface as synthetic services into Symfony's services definitions to avoid compilation error with Symfony 4.4
  • Set Symfony\Bridge\PsrHttpMessage\Factory\DiactorosFactory into Symfony's services definitions to avoid compilation error with Symfony 4.4
  • Enable PHPStan in QA Tools and disable PHPMD


Richard Déloge - richarddeloge@gmail.com - Lead developer. Teknoo Software - http://teknoo.software

About Teknoo Software

Teknoo Software is a PHP software editor, founded by Richard Déloge. Teknoo Software's DNA is simple : Provide to our partners and to the community a set of high quality services or software, sharing knowledge and skills.


East Foundation is licensed under the MIT License - see the licenses folder for details

Contribute :)

You are welcome to contribute to this project. Fork it on Github