If current userid and username is all you need, just use Auth::user()->id and Auth::user()->name in a view.

As for why View::share() is not working for you, it's because at the time routes.php is executed (as part of registering and booting service providers) current user is not yet set, because sessions are handled by a middleware, and middlewares are run after service providers.

Another way to solve your issue is by using wildcard view composers. Add these lines to boot method of your App\Providers\AppServiceProvider class:

\View::composer('*', function($view)
{
	$view->with('currentUser', \Auth::user());
});

This closure will be executed when rendering a view, and by that time session will already be started.

Thank you very much Xum