test/app/Http/Middleware/Can.php

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Support\Facades\Auth;

class Can
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure $next
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $user = Auth::user();
        $role = $user->role ?? 0;
        $role->projects;
        $role->permissions;
        return $next($request);
    }
}