laravel-mollie get access token from refresh token

laravel-mollie-access-token-from-refresh.php

<?php
public function getRefreshTokenResponse($code)
{
    $response = $this->getHttpClient()->post($this->getTokenUrl(), [
        'headers' => ['Accept' => 'application/json'],
        'form_params' => $this->getRefreshTokenFields($code),
    ]);
    return json_decode($response->getBody(), true);
}

public function getRefreshTokenFields($code)
{
    
    return [
        'client_id' => $this->clientId,
        'client_secret' => $this->clientSecret,
        'code' => $code,
        'grant_type' => 'refresh_token',
        'refresh_token' => $code,
    ];
}

// works with
$result = Socialite::with('mollie')
->scopes($scopes)
->getRefreshTokenResponse($refreshToken);