mymiddleware.php

<?php

namespace App\Http\Middleware;

use Closure;

class MyMiddleware
{
    /**
     *
     * @param  \Illuminate\Http\Request $request
     * @param  \Closure                 $next
     *
     * @return mixed
     */
    public function handle($request, Closure $next)
    {
        $bar = $request->route('bar'); //null
        $bar1 = $request->bar; //null
        
        return $next($request);
    }
}