diff --git a/services/backup/src/Reactors/server/AddAttachmentReactor.h b/services/backup/src/Reactors/server/AddAttachmentReactor.h
new file mode 100644
--- /dev/null
+++ b/services/backup/src/Reactors/server/AddAttachmentReactor.h
@@ -0,0 +1,65 @@
+#pragma once
+
+#include "DatabaseEntitiesTools.h"
+#include "ServerReadReactorBase.h"
+#include "ServiceBlobClient.h"
+
+#include "../_generated/backup.grpc.pb.h"
+#include "../_generated/backup.pb.h"
+
+#include <memory>
+#include <string>
+
+namespace comm {
+namespace network {
+namespace reactor {
+
+class AddAttachmentReactor : public ServerReadReactorBase<
+                                 backup::AddAttachmentRequest,
+                                 google::protobuf::Empty> {
+  enum class State {
+    USER_ID = 1,
+    BACKUP_ID = 2,
+    LOG_ID = 3,
+    DATA_HASH = 4,
+    DATA_CHUNK = 5,
+  };
+
+  enum class ParentType {
+    UNKNOWN = 0,
+    BACKUP = 1,
+    LOG = 2,
+  };
+
+  State state = State::USER_ID;
+  ParentType parentType = ParentType::UNKNOWN;
+  std::string userID;
+  std::shared_ptr<database::BackupItem> backupItem;
+  std::shared_ptr<database::LogItem> logItem;
+  std::string logID;
+  std::string holder;
+  std::string hash;
+  std::mutex reactorStateMutex;
+
+  std::condition_variable blobPutDoneCV;
+  std::mutex blobPutDoneCVMutex;
+
+  std::shared_ptr<reactor::BlobPutClientReactor> putReactor;
+  ServiceBlobClient blobClient;
+
+  void initializePutReactor();
+  void storeInDatabase();
+
+public:
+  using ServerReadReactorBase<
+      backup::AddAttachmentRequest,
+      google::protobuf::Empty>::ServerReadReactorBase;
+
+  std::unique_ptr<grpc::Status>
+  readRequest(backup::AddAttachmentRequest request) override;
+  void terminateCallback() override;
+};
+
+} // namespace reactor
+} // namespace network
+} // namespace comm
diff --git a/services/backup/src/Reactors/server/AddAttachmentReactor.cpp b/services/backup/src/Reactors/server/AddAttachmentReactor.cpp
new file mode 100644
--- /dev/null
+++ b/services/backup/src/Reactors/server/AddAttachmentReactor.cpp
@@ -0,0 +1,45 @@
+#include "AddAttachmentReactor.h"
+
+#include "Constants.h"
+#include "DatabaseManager.h"
+#include "GlobalTools.h"
+#include "Tools.h"
+
+#include <iostream>
+
+namespace comm {
+namespace network {
+namespace reactor {
+
+void AddAttachmentReactor::initializePutReactor() {
+}
+
+void AddAttachmentReactor::storeInDatabase() {
+}
+
+std::unique_ptr<grpc::Status>
+AddAttachmentReactor::readRequest(backup::AddAttachmentRequest request) {
+  // we make sure that the blob client's state is flushed to the main memory
+  // as there may be multiple threads from the pool taking over here
+  const std::lock_guard<std::mutex> lock(this->reactorStateMutex);
+  switch (this->state) {
+    case State::USER_ID: {
+    };
+    case State::BACKUP_ID: {
+    };
+    case State::LOG_ID: {
+    };
+    case State::DATA_HASH: {
+    };
+    case State::DATA_CHUNK: {
+    };
+  }
+  throw std::runtime_error("send attachment - invalid state");
+}
+
+void AddAttachmentReactor::terminateCallback() {
+}
+
+} // namespace reactor
+} // namespace network
+} // namespace comm