Refresh token with Client Credentials Grant about saloon HOT 5 CLOSED

class MyConnector extends Connector
{
    use ClientCredentialsGrant;
    use AcceptsJson;

    private function __construct(
        private readonly string $clientKey,
    ) {
        $authenticator = $this->getAccessToken();
        $this->authenticate($authenticator);
    }

    public function resolveBaseUrl(): string
    {
        return '';
    }

    protected function defaultOauthConfig(): OAuthConfig
    {
        return OAuthConfig::make()
            ->setClientId('')
            ->setClientSecret('')
            ->setAuthorizeEndpoint('authorize')
            ->setTokenEndpoint('/oauth/token');
    }

    /**
     * @throws JsonException
     */
    protected function createOAuthAuthenticatorFromResponse(Response $response): OAuthAuthenticator
    {
        $responseData = $response->object();

        $accessToken = $responseData->access_token;

        $expiresAt = null;
        if (isset($responseData->expires_in) && is_numeric($responseData->expires_in)) {
            $expiresAt = (new DateTimeImmutable())->add(
                DateInterval::createFromDateString((int) $responseData->expires_in . ' seconds')
            );
        }

        $refreshToken = $responseData->refresh_token ?: null;

        return new AccessTokenAuthenticator($accessToken, $refreshToken, $expiresAt);
    }

    /**
     * @throws FatalRequestException
     * @throws RequestException
     * @throws JsonException
     */
    public function send(Request $request, MockClient $mockClient = null, callable $handleRetry = null): Response
    {
        if ($this->authenticator?->hasExpired()) {
            $refreshTokenResponse = parent::send(
                new GetRefreshTokenRequest(
                    $this->oauthConfig,
                    $this->authenticator->getRefreshToken()
                )
            );
            $authenticator = $this->createOAuthAuthenticatorFromResponse($refreshTokenResponse);
            $this->authenticate($authenticator);
        }

        return parent::send($request, $mockClient, $handleRetry);
    }
}