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# middlewares/fast-route

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[![Software License][ico-license]](LICENSE)
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Middleware to use [FastRoute](https://github.com/nikic/FastRoute).

## Requirements

* PHP >= 5.6
* A [PSR-7](https://packagist.org/providers/psr/http-message-implementation) http mesage implementation ([Diactoros](https://github.com/zendframework/zend-diactoros), [Guzzle](https://github.com/guzzle/psr7), [Slim](https://github.com/slimphp/Slim), etc...)
* A [PSR-15 middleware dispatcher](https://github.com/middlewares/awesome-psr15-middlewares#dispatcher)

## Installation

This package is installable and autoloadable via Composer as [middlewares/fast-route](https://packagist.org/packages/middlewares/fast-route).

```sh
composer require middlewares/fast-route
```

## Example

```php
//Create the router dispatcher
$dispatcher = FastRoute\simpleDispatcher(function (FastRoute\RouteCollector $r) {
    $r->addRoute('GET', '/hello/{name}', function ($request) {
        //The route parameters are stored as attributes
        $name = $request->getAttribute('name');

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

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

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

$dispatcher = new Dispatcher([
    new Middlewares\FastRoute($dispatcher)
]);

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

**fastRoute** allows to define anything as the router handler (a closure, callback, action object, controller class, etc). By default, it's interpreted in the following way:

* If it's a string similar to `Namespace\Class::method`, and the method is not static, create a instance of `Namespace\Class` and call the method.
* If the string is the name of a existing class (like: `Namespace\Class`) and contains the method `__invoke`, create a instance and execute that method.
* Otherwise, treat it as a callable.

If you want to change this behaviour, use a container implementing the [container-interop](https://github.com/container-interop/container-interop) to return the route callable.

## Options

#### `__construct(FastRoute\Dispatcher $dispatcher)`

The dispatcher instance to use.

#### `resolver(Interop\Container\ContainerInterface $resolver)`

To use a container implementing [container-interop](https://github.com/container-interop/container-interop) to resolve the route handlers.

#### `arguments(...$args)`

Extra arguments to pass to the controller. This is useful to inject, for example a service container:

```php
$dispatcher = FastRoute\simpleDispatcher(function (FastRoute\RouteCollector $r) {
    $r->addRoute('GET', '/posts/{id}', function ($request, $app) {
        $id = $request->getAttribute('id');
        $post = $app->get('database')->select($id);
        
        return $app->get('templates')->render($post);
    });
});

$dispatcher = new Dispatcher([
    (new Middlewares\FastRoute($dispatcher))
        ->arguments($app)
]);
```

---

Please see [CHANGELOG](CHANGELOG.md) for more information about recent changes and [CONTRIBUTING](CONTRIBUTING.md) for contributing details.

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

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[link-packagist]: https://packagist.org/packages/middlewares/fast-route
[link-travis]: https://travis-ci.org/middlewares/fast-route
[link-scrutinizer]: https://scrutinizer-ci.com/g/middlewares/fast-route
[link-downloads]: https://packagist.org/packages/middlewares/fast-route
[link-sensiolabs]: https://insight.sensiolabs.com/projects/bb44398f-43ee-4a09-a60e-d5c9735fa0be