Middleware for chiled route laravel 5.1

In fact i'm looking for filter chields route for admins route for example

get('admins/*', ['middleware' => 'auth' ,function() {}]);

I think in laravel 4 was Route::when('admins/*', '/');

to redirect user for / in not has auth by Call Pattern Filter from filter.php

Is there someway to achieve that in laravel 5.1 ?

via Chebli Mohamed