diff --git a/examples/custom-apps/ndn-api-app.h b/examples/custom-apps/ndn-api-app.h
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+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2013 University of California, Los Angeles
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Alexander Afanasyev <alexander.afanasyev@ucla.edu>
+ */
+
+#ifndef NDN_EXAMPLES_API_APP_H
+#define NDN_EXAMPLES_API_APP_H
+
+#include "ns3/core-module.h"
+#include "ns3/network-module.h"
+#include "ns3/ndnSIM-module.h"
+
+#include "ns3/ndnSIM/ndn.cxx/ndn-handler.h"
+
+namespace ns3 {
+namespace ndn {
+
+class ApiApp : public Application
+{
+public:
+  static TypeId
+  GetTypeId ();
+
+  ApiApp ();
+
+private:
+  void
+  RequestData ();
+  
+protected:
+  // inherited from Application base class.
+  virtual void
+  StartApplication ();
+
+  virtual void
+  StopApplication ();
+
+private:
+  Ptr<Handler> m_handler;
+};
+
+} // namespace ndn
+} // namespace ns3
+
+#endif // NDN_EXAMPLES_API_APP_H