#pragma once

#include <string>

#include "envoy/http/request_id_extension.h"

#include "envoy/server/filter_config.h"

#include "source/common/protobuf/protobuf.h"

namespace Envoy {

namespace Server {

namespace Configuration {

/**

 * Implemented for each RequestIDExtension and registered via Registry::registerFactory

 * or the convenience class RegisterFactory.

 */

class RequestIDExtensionFactory : public Envoy::Config::TypedFactory {

public:

  /**

   * Create a Request ID Extension instance from the provided config proto.

   * @param config the custom configuration for this request id extension type.

   * @param context general filter context through which persistent resources can be accessed.

   */

  virtual Http::RequestIDExtensionSharedPtr createExtensionInstance(const Protobuf::Message& config,

                                                                    FactoryContext& context) PURE;

};

} // namespace Configuration

} // namespace Server

} // namespace Envoy