6. Container Configuration

6.1. Aura.Di

The Radar dependency injection container is an instance of Aura.Di. The Radar boot process runs a list of container configuration classes when building the container. You can learn about container configuration classes here.

6.2. Configuration (aka "Providers")

To tell the boot process which container configuration (aka "provider") classes to load, and in which order, pass an array of config class names to the Boot() call in web/index.php. This array will automatically be merged with the default Config that comes with ADR.

$boot = new Boot();
$adr = $boot->adr([
    'Foo\Bar\ContainerConfig',
    'Baz\Dib\_Config',
    'Some\Other\ConfigClass'
]);

These will be loaded by the container builder in order.

Of special importance, if your Domain is in a separate package and has its own configuration class, be sure to include that class name in the list.

6.3. Extracting Setup To Configuration

If you like, you can greatly reduce the size of your web/index.php file by moving all the middleware and route setup logic to a configuration class, and then specifying that class as part of the container configuration. For example, if your web/index.php has this setup logic ...

$adr->middle('Radar\Adr\Handler\ExceptionHandler');
$adr->middle('My\Middleware\BarHandler');
$adr->middle('Radar\Adr\Handler\RoutingHandler');

...

$adr->get(...);
$adr->post(...);
$adr->delete(...);

... you can extract that to a DI configuration class like so. The follwing My\Config class might be saved in src/My/Config.php; note the use of $di->get() to retrieve the $adr service.

namespace My;

use Aura\Di\Container;
use Aura\Di\ContainerConfig;

class Config extends ContainerConfig
{
    public function modify(Container $di)
    {
        $adr = $di->get('radar/adr:adr');

        $adr->middle('Radar\Adr\Handler\ExceptionHandler');
        $adr->middle('My\Middleware\FooHandler');
        $adr->middle('My\Middleware\BarHandler');
        $adr->middle('Radar\Adr\Handler\RoutingHandler');
        $adr->middle('Radar\Adr\Handler\ActionHandler');
        $adr->middle('Radar\Adr\Handler\SendingHandler');

        $adr->get(...);
        $adr->post(...);
        $adr->delete(...);
    }
}

Then you can replace the setup logic from web/index.php by specifying a Config file in the Boot() params:

$boot = new Boot();
$adr = $boot->adr([
    'Foo\Bar\ContainerConfig',
    'My\Config',
]);