Laravel Package development: Facade alias not found - laravel-7

Question

I try to create an alias for a facade in a Laravel 7 package.
On testing I get the message:
Error: Class 'MemberRequest' not found
Test:
/** #test */
public function a_member_request_can_be_created()
{
$this->assertDatabaseMissing('member_requests', ['created_at' => Date::now()]);
\MemberRequest::create(new CreateMemberRequestRequest(['email_address' => $this->email_address]));
$this->assertDatabaseHas('member_requests', ['created_at' => Date::now()]);
}
I did the following steps:
create a facade (extending the facade class from Laravel Illuminate
Register it in the service provider
add the alias to the config file
add the alias to the composer.json file
Create a Facade:
namespace martijn\UMS\Repositories\Facades;
use Illuminate\Support\Facades\Facade;
class MemberRequestRepositoryFacade extends Facade
{
public static function getFacadeAccessor()
{
return 'MemberRequest';
}
}
Register in serviceProvider:
namespace martijn\UMS\Providers;
use Illuminate\Support\ServiceProvider;
use martijn\UMS\Repositories\MemberRequestRepository;
class UMSBaseServiceProvider extends ServiceProvider
{
public function register()
{
$this->registerFacades();
}
private function registerFacades()
{
// Facades
$this->app->singleton('MemberRequest', function () {
return new MemberRequestRepository();
});
}
}
Add it to a config file:
return [
/*
|--------------------------------------------------------------------------
| Class Aliases
|--------------------------------------------------------------------------
|
| This array of class aliases will be registered when this application
| is started. However, feel free to register as many as you wish as
| the aliases are "lazy" loaded so they don't hinder performance.
|
*/
'aliases' => [
'MemberRequest' => \martijn\UMS\Repositories\Facades\MemberRequestRepositoryFacade::class,
]
];
Add it to composer.json:
"aliases": {
"MemberRequest": "martijn\\UMS\\Repositories\\Facades\\MemberRequestRepositoryFacade"
}

Answer 1

I found out that it is done in the boot loader of the service provider like this:
https://laracasts.com/discuss/channels/laravel/dynamic-class-aliases-in-package
In my example it was:
$loader = AliasLoader::getInstance();
$loader->alias('MemberRequest', \martijn\UMS\Repositories\Facades\MemberRequestRepositoryFacade::class);

Answer 2

In your ServiceProvider, try like this:
$this->app->singleton('MemberRequest', function () {
return new MemberRequestRepository;
});