Singleton Attribute in DI is not respected (reset at each request in same worker)

[kamil-michalak]

Octane Version

2.13.1

Laravel Version

12.38.1

PHP Version

8.4.14

What server type are you using?

Swoole

Server Version

nginx

Database Driver & Version

No response

Description

When registering a singleton via AppServiceProvider, the constructor is triggered only once per worker, as expected. However, when using the attribute-based singleton registration (https://laravel.com/docs/12.x/container#singleton-attribute
), the constructor appears to be triggered once per request scope, behaving more like a scoped service. This may be due to the sandbox being registered earlier.

Steps To Reproduce

Check running this part

namespace App\TestService;

use Illuminate\Container\Attributes\Singleton;

#[Singleton]
class TestService
{
    public function __construct()
    {
        echo("__construct TestService");
        echo(spl_object_id($this));
    }
}

in some controler use

app(\App\TestService\TestService::class);
app(\App\TestService\TestService::class);
app(\App\TestService\TestService::class);

[nafetsrybak]

Hi,

I’m experiencing a slightly different behaviour.

When I register my service in a service provider as a singleton like this:

$this->app->singleton(TestService::class);

it still gets created on every request.

It looks like this may be caused by Laravel\Octane\Listeners\GiveNewApplicationInstanceToRouter, which results in a new container instance being passed to Illuminate\Routing\Router.
Because of that, the singleton is not preserved between requests.