How to properly validate the parameters passed in the URL?

Question

Laravel

Good afternoon. Please tell me what I'm doing wrong.
There is a route:

Route::get('/user/{name}', 'Page\[email protected]');

Created a userName method in PageController:

public function userName(Request $request, $name)
{
    $request->validate([
        'name' => 'required|alpha_num|max:50',
    ]);
}

For example, I follow the link http: // site address / user / userName
If the method returns return $ request-> name, then I will get userName, but it does not work in the validation itself, in the validation this parameter turns out to be empty.

Answer 1

https://laravel.com/docs/5.7/routing#parameters-re...