I`m trying to get instanse of my class using dependency injection. This class has own service provider that registered in app.php
class Something
{
private $variable;
public function __construct(string $variable)
{
$this->variable = $variable;
}
}
this is service provider
class SomethingServiceProvider extends ServiceProvider
{
public function boot()
{
}
public function register()
{
$this->app->singleton('Something', function () {
return new Something( 'test');
});
}
}
and when I try to use this class instance in controller...
class TestController extends AppBaseController
{
public function __construct(Something $something)
{
$this->something = $something;
}
...
I got error:
"Unresolvable dependency resolving [Parameter #0 [ string $variable ]] in class Something at Container->unresolvablePrimitive(object(ReflectionParameter)) in Container.php (line 848) "
I guess YourServiceProvider::__construct accepts a non-typed $app instance. This means that Laravel cannot automatically resolve it. Try typing it; public function __construct(Application $app) with the proper use-statement.
More: https://laravel.com/docs/5.3/container#automatic-injection
When you register something to be injected you need to use the fully qualified class name:
public function register()
{
$this->app->singleton(Something::class, function () {
return new Something( 'test');
});
}
Otherwise Laravel will try to automatically inject something which implies that it will try to inject the dependencies of Something first and then determine that this is a string and fail.