I am trying to implement an auth driver for authentification over an API to another pre-existing system. For login this works fine, however I am running into issues when trying to implement the ability to register.

I am overriding the Registrar class, what I have found so far is:

create(array $data) must only be called when the system is sure its a valid data set (IE, I can't get the API response [which may tell us that the email is in use] and then redirect away with errors).

As such, I'm trying to implement a validation method which can send the data to the API, which has a validation endpoint. To pass all the data through, I have a function similar to this:

public function validator(array $data)
{
    $data['allData'] = $data;
    return Validator::make($data, [
        'allData' => 'customerAPIValid'
    ]);
}

A little hacky, but it works.

I've also extended the Validation class:

Validator::extend('customerAPIValid', function($attribute, $value, $parameters)
{
    $api = new API();

    $result = $api->validateCustomer($value);

    return isset( $result['error'] );
});

This works fine, but I cannot find a way to pass the validation errors that the API returns, to the view. (The errors are set in $result['error'] which is an array).

Any tips on how I can dynamically, set the error messages into the view?