src/AuthModule/Service/AuthenticationServiceFactory.php
public function createService(ServiceLocatorInterface $serviceLocator)
    {
        $config = $this->getConfig($serviceLocator);
        $authService = new AuthenticationService();

        $sessionStorageConfig = [
            'namespace' => __NAMESPACE__,
            'member'    => null,
        ];
        if (isset($config['session_storage']) && is_array($config['session_storage'])) {
            $sessionStorageConfig = array_merge($sessionStorageConfig, $config['session_storage']);
        }

        /** @var $sessionManager SessionManager */
        $sessionManager = $serviceLocator->get('Zend\Session\SessionManager');

        $authService->setStorage(
            new Session($sessionStorageConfig['namespace'], $sessionStorageConfig['member'], $sessionManager)
        );

        if (isset($config['adapter']) && is_string($config['adapter']) && $serviceLocator->has($config['adapter'])) {
            /** @var $adapter AdapterInterface */
            $adapter = $serviceLocator->get($config['adapter']);
            $authService->setAdapter($adapter);
        }

        return $authService;
    }
public function createService(ServiceLocatorInterface $serviceLocator)
    {
        $config = $this->getConfig($serviceLocator);
        $authService = new AuthenticationService();

        $sessionStorageConfig = [
            'namespace' => __NAMESPACE__,
            'member'    => null,
        ];
        if (isset($config['session_storage']) && is_array($config['session_storage'])) {
            $sessionStorageConfig = array_merge($sessionStorageConfig, $config['session_storage']);
        }

        /** @var $sessionManager SessionManager */
        $sessionManager = $serviceLocator->get('Zend\Session\SessionManager');

        $authService->setStorage(
            new Session($sessionStorageConfig['namespace'], $sessionStorageConfig['member'], $sessionManager)
        );

        if (isset($config['adapter']) && is_string($config['adapter']) && $serviceLocator->has($config['adapter'])) {
            /** @var $adapter AdapterInterface */
            $adapter = $serviceLocator->get($config['adapter']);
            $authService->setAdapter($adapter);
        }

        return $authService;
    }
Create service

@param ServiceLocatorInterface $serviceLocator
@return AuthenticationService