/home/mip/mip/app/Modules/Client/Middleware/RedirectIfAuthenticated.php
<?php

namespace QxCMS\Modules\Client\Middleware;

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

class RedirectIfAuthenticated
{
    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  string|null  $guard
     * @return mixed
     */
    public function handle($request, Closure $next, $guard = 'client')
    {
        if (Auth::guard($guard)->check()) {
            $request->setUserResolver(function () use ($guard) {
                return Auth::guard($guard)->user();
            });
            return redirect('client/dashboard');
        }
        return $next($request);
    }
}