diff --git a/services/backup/docker-server/contents/server/src/Reactors/WriteReactorBase.h b/services/backup/docker-server/contents/server/src/Reactors/WriteReactorBase.h
deleted file mode 100644
--- a/services/backup/docker-server/contents/server/src/Reactors/WriteReactorBase.h
+++ /dev/null
@@ -1,69 +0,0 @@
-#pragma once
-
-#include <grpcpp/grpcpp.h>
-#include <iostream>
-#include <memory>
-#include <string>
-
-namespace comm {
-namespace network {
-
-template <class Request, class Response>
-class WriteReactorBase : public grpc::ServerWriteReactor<Response> {
-  Response response;
-
-protected:
-  // this is a const ref since it's not meant to be modified
-  const Request &request;
-
-public:
-  WriteReactorBase(const Request *request);
-
-  virtual void NextWrite();
-  void OnDone() override;
-  void OnWriteDone(bool ok) override;
-
-  virtual std::unique_ptr<grpc::Status> writeResponse(Response *response) = 0;
-};
-
-template <class Request, class Response>
-WriteReactorBase<Request, Response>::WriteReactorBase(const Request *request)
-    : request(*request) {
-  // we cannot call this->NextWrite() here because it's going to call it on
-  // the base class, not derived leading to the runtime error of calling
-  // a pure virtual function
-  // NextWrite has to be exposed as a public function and called explicitly
-  // to initialize writing
-}
-
-template <class Request, class Response>
-void WriteReactorBase<Request, Response>::NextWrite() {
-  this->response = Response();
-  std::unique_ptr<grpc::Status> status = this->writeResponse(&this->response);
-  if (status != nullptr) {
-    this->Finish(*status);
-    return;
-  }
-  this->StartWrite(&this->response);
-}
-
-template <class Request, class Response>
-void WriteReactorBase<Request, Response>::OnDone() {
-  delete this;
-}
-
-template <class Request, class Response>
-void WriteReactorBase<Request, Response>::OnWriteDone(bool ok) {
-  if (!ok) {
-    this->Finish(grpc::Status(grpc::StatusCode::INTERNAL, "writing error"));
-    return;
-  }
-  try {
-    this->NextWrite();
-  } catch (std::runtime_error &e) {
-    this->Finish(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
-  }
-}
-
-} // namespace network
-} // namespace comm
diff --git a/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerWriteReactorBase.h b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerWriteReactorBase.h
new file mode 100644
--- /dev/null
+++ b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerWriteReactorBase.h
@@ -0,0 +1,94 @@
+#pragma once
+
+#include <grpcpp/grpcpp.h>
+
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace comm {
+namespace network {
+namespace reactor {
+
+template <class Request, class Response>
+class ServerWriteReactorBase : public grpc::ServerWriteReactor<Response> {
+  Response response;
+  bool initialized = false;
+
+  void terminate(grpc::Status status);
+
+protected:
+  // this is a const ref since it's not meant to be modified
+  const Request &request;
+
+public:
+  ServerWriteReactorBase(const Request *request);
+
+  virtual void NextWrite();
+  void OnDone() override;
+  void OnWriteDone(bool ok) override;
+
+  virtual std::unique_ptr<grpc::Status> writeResponse(Response *response) = 0;
+  virtual void initialize(){};
+  virtual void doneCallback(){};
+};
+
+template <class Request, class Response>
+void ServerWriteReactorBase<Request, Response>::terminate(grpc::Status status) {
+  this->status = status;
+  this->Finish(status);
+}
+
+template <class Request, class Response>
+ServerWriteReactorBase<Request, Response>::ServerWriteReactorBase(
+    const Request *request)
+    : request(*request) {
+  // we cannot call this->NextWrite() here because it's going to call it on
+  // the base class, not derived leading to the runtime error of calling
+  // a pure virtual function
+  // NextWrite has to be exposed as a public function and called explicitly
+  // to initialize writing
+}
+
+template <class Request, class Response>
+void ServerWriteReactorBase<Request, Response>::NextWrite() {
+  try {
+    if (!this->initialized) {
+      this->initialize();
+      this->initialized = true;
+    }
+    this->response = Response();
+    std::unique_ptr<grpc::Status> status = this->writeResponse(&this->response);
+    if (status != nullptr) {
+      this->terminate(*status);
+      return;
+    }
+    this->StartWrite(&this->response);
+  } catch (std::runtime_error &e) {
+    std::cout << "error: " << e.what() << std::endl;
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
+  }
+}
+
+template <class Request, class Response>
+void ServerWriteReactorBase<Request, Response>::OnDone() {
+  this->doneCallback();
+  delete this;
+}
+
+template <class Request, class Response>
+void ServerWriteReactorBase<Request, Response>::OnWriteDone(bool ok) {
+  if (!ok) {
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, "writing error"));
+    return;
+  }
+  try {
+    this->NextWrite();
+  } catch (std::runtime_error &e) {
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
+  }
+}
+
+} // namespace reactor
+} // namespace network
+} // namespace comm