middlewares/aura-router

Middleware to use Aura.Router with a few more extras.

Requirements

• PHP >= 7.2
• A PSR-7 http library
• A PSR-15 middleware dispatcher

Installation

This package is installable and autoloadable via Composer as middlewares/aura-router.

composer require middlewares/aura-router

Example

In this example, we are using middleware/request-handler to execute the route handler:

// Create the router
$router = new Aura\Router\RouterContainer();

$map = $router->getMap();

$map->get('hello', '/hello/{name}', function ($request) {

    // The route parameters are mapped to attributes
    $name = $request->getAttribute('name');

    // You can echo the output (it will be captured and wrote into the body)
    echo sprintf('Hello %s', $name);

    // Or return a string
    return sprintf('Hello %s', $name);

    // Or return a response
    return new Response();
});

$dispatcher = new Dispatcher([
    new Middlewares\AuraRouter($router),
    new Middlewares\RequestHandler()
]);

$response = $dispatcher->dispatch(new ServerRequest('/hello/world'));

Aura.Router allows to define anything as the router handler (a closure, callback, action object, controller class, etc.). The middleware will store this handler in a request attribute.

Usage

Create the middleware with a Aura\Router\RouterContainer instance:

$routerContainer = new Aura\Router\RouterContainer();

$route = new Middlewares\AuraRouter($routerContainer);

Optionally, you can provide a Psr\Http\Message\ResponseFactoryInterface as the second argument, that will be used to create the error responses (404, 405 or 406). If it's not defined, Middleware\Utils\Factory will be used to detect it automatically.

$routerContainer = new Aura\Router\RouterContainer();
$map = $router->getMap();
$map->get('list', '/users', 'listUsers')->extras(
    'key' => 'value'
]);

$optionalResponseFactory = new MyOwnResponseFactory();

$middleware = new Middlewares\AuraRouter($routerContainer, $optionalResponseFactory);

$dispatcher = new Dispatcher([
    // Hold the resolved route handler reference in an attribute called "handler"
    // (default: request-handler)
    $middleware->handlerAttribute('handler'),
       
    // Hold Aura's resolved route instance in an attribute called "aura-route"
    // (default: route)
    $middleware->routeAttribute('aura-route'),

    // Execute the route handler
    (new Middlewares\RequestHandler())->handlerAttribute('handler')
]);

// then, inside our Request Handler or Middleware
public function process(
    ServerRequestInterface $request,
    RequestHandlerInterface $handler
): ResponseInterface {
    /** @var string $handler this returns 'listUsers' */
    $handler = $request->getAttribute('handler');
    
    /** @var Route $route this returns the resolved Route instance */
    $route = $request->getAttribute('aura-route');
    
    // example to retrieve the previously set extra key/value "value"
    $route->extras['key'];
    
    // example to retrieve the route name "list"
    $route->name;
}

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Please see CHANGELOG for more information about recent changes and CONTRIBUTING for contributing details.

The MIT License (MIT). Please see LICENSE for more information.