Microweber\Providers\Socialite\MicroweberProvider::getAccessToken PHP Method

    public function getAccessToken($code)
    {
        $query = $this->getTokenFields($code);
        $tokenUrl = $this->getTokenUrl() . '?grant_type=authorization_code';
        $response = $this->getHttpClient()->post($tokenUrl, ['body' => $query]);
        return $this->parseAccessToken($response);
    }