如何将请求注入Laravel的Facade类？

Question

So I have the following class that's a facade:

namespace App\Helpers;

use App\Http\Requests\HomepageRequest;

class Params {

    public function __construct(HomepageRequest $request) {

    }

Then I have the ParamsServiceProvider class which instantiates the facade class on script startup:

public function register()
{
    //
    App::bind('params', function() {
        return new Params();
    });
}

edit: here is the actual facade for the Params class

use Illuminate\Support\Facades\Facade;

class Params extends Facade {
    protected static function getFacadeAccessor() {
        return 'params';
    }
}

This all works fine, the class is instantiated properly, however, it doesn't seem to inject the request object in the constructor like it would in a controller class. Is there a way to inject the request into a facade class like you would in a controller? With the current code, I get the following error:

Too few arguments to function App\Helpers\Params::__construct(), 0 passed in /var/www/v4api/html/app/Providers/ParamsServiceProvider.php on line 21 and exactly 1 expected

I want to avoid having to manually pass the request input into the class and just have it automatically be injected in the constructor. Any help that you guys can give would be appreciated!

Answer 1

Looks like this worked out:

In the ParamsServiceProvider, instead of using App::bind to instantiate the Params class, do this instead:

public function register()
{
    App::alias(Params::class, 'params');
}

then the request object will be injected properly into the facade.