Challenge 1 / 1

How to autowire an argument in the constructor of the ImageUploader service? The $kernelDir should be set to the kernel.project_dir parameter.

namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire('kernel.project_dir')]
        private readonly string $kernelDir,
    ) {
    }
}

Both C and D are valid.

namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire('%kernel.project_dir%')]
        private readonly string $kernelDir,
    ) {
    }
}

namespace App\Service;

use Symfony\Component\DependencyInjection\Attribute\Autowire;

class ImageUploader
{
    public function __construct(
        #[Autowire(param: 'kernel.project_dir')]
        private readonly string $kernelDir,
    ) {
    }
}

Rewatch the video