validate alphanumeric parameter on route of api

I created a resource in my API to check if an given nickname exists on database, like this:

Route::get('checknickname/{nickname}', 'AuthController@check_nickname');

But I want to vallidate if the parameter nickname is alpha_dash, just like we use on an POST method, for example. How can I do this?

I found out that on check_nickname function at AuthController I can't check like this:

$request->validate([
        'nickname' => 'required|alpha_dash|string',
    ]);

Best Answer

Level 18

@mhery createa a custom Validation rule i.e AlphaDash and then use it on the validation

Validator::make($data, [
            'AlphaDash' => [
                'required',
                new AlphaDash
            ]
        ]);

Level 122

If you want to validate the route parameter then you need to create a manual validator and pass in the nickname as part of an array to the validator

But ideally, you should pass the nickname the first time as post data or query string - not as part of the route.

eg GET /checknickname?nickname='snapey'

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