Inject Configuration and Models Directly with Contextual Attributes

Use #[Config], #[CurrentUser], and #[RouteParameter] attributes to inject configuration and contextual parameters directly into service constructors.

Traditionally, injecting primitive values (like API keys or base URLs) into service classes required writing manual $this->app->when(...)->needs(...)->give(...) bindings in AppServiceProvider.

Modern Laravel supports contextual dependency injection attributes directly on constructor parameters.

Injecting Configuration with #[Config]

namespace App\Services;

use Illuminate\Container\Attributes\Config;

class StripePaymentGateway
{
    public function __construct(
        #[Config('services.stripe.secret')]
        protected string $secretKey,

        #[Config('services.stripe.currency', 'usd')]
        protected string $currency
    ) {}
}

Injecting the Authenticated User with #[CurrentUser]

namespace App\Services;

use App\Models\User;
use Illuminate\Container\Attributes\CurrentUser;

class UserAuditLogger
{
    public function __construct(
        #[CurrentUser]
        protected ?User $actor
    ) {}
}

Summary

• Eliminates verbose contextual bindings in AppServiceProvider.
• Works on controller actions, service classes, and job constructors.
• Native PHP attributes: #[Config], #[CurrentUser], #[RouteParameter], #[Storage].