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diff --git a/include/AittTransport.h b/include/AittTransport.h
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+++ b/include/AittTransport.h
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+/*
+ * Copyright (c) 2021-2022 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#pragma once
+
+#include <AittDiscovery.h>
+#include <AittTypes.h>
+
+#include <functional>
+#include <string>
+
+namespace aitt {
+
+class AittTransport {
+  public:
+    typedef void *(*ModuleEntry)(const char *ip, AittDiscovery &discovery);
+    using SubscribeCallback = std::function<void(const std::string &topic, const void *msg,
+          const size_t szmsg, void *cbdata, const std::string &correlation)>;
+
+    static constexpr const char *const MODULE_ENTRY_NAME = "aitt_module_entry";
+
+    explicit AittTransport(AittDiscovery &discovery) : discovery(discovery) {}
+    virtual ~AittTransport(void) = default;
+
+    virtual void Publish(const std::string &topic, const void *data, const size_t datalen,
+          const std::string &correlation, AittQoS qos = AITT_QOS_AT_MOST_ONCE,
+          bool retain = false) = 0;
+
+    virtual void Publish(const std::string &topic, const void *data, const size_t datalen,
+          AittQoS qos = AITT_QOS_AT_MOST_ONCE, bool retain = false) = 0;
+
+    virtual void *Subscribe(const std::string &topic, const SubscribeCallback &cb,
+          void *cbdata = nullptr, AittQoS qos = AITT_QOS_AT_MOST_ONCE) = 0;
+    virtual void *Subscribe(const std::string &topic, const SubscribeCallback &cb, const void *data,
+          const size_t datalen, void *cbdata = nullptr, AittQoS qos = AITT_QOS_AT_MOST_ONCE) = 0;
+
+    virtual void *Unsubscribe(void *handle) = 0;
+
+  protected:
+    aitt::AittDiscovery &discovery;
+};
+
+}  // namespace aitt