diff --git a/services/backup/docker-server/contents/server/CMakeLists.txt b/services/backup/docker-server/contents/server/CMakeLists.txt
--- a/services/backup/docker-server/contents/server/CMakeLists.txt
+++ b/services/backup/docker-server/contents/server/CMakeLists.txt
@@ -50,7 +50,11 @@
 include_directories(
   ./src
   ./src/DatabaseEntities
-  ./src/Reactors
+  ./src/Reactors/server
+  ./src/Reactors/server/base-reactors
+  ./src/Reactors/client
+  ./src/Reactors/client/blob
+  ./src/Reactors/client/base-reactors
   ./_generated
   ${FOLLY_INCLUDES}
   ./lib/double-conversion
diff --git a/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerBidiReactorBase.h b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerBidiReactorBase.h
new file mode 100644
--- /dev/null
+++ b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerBidiReactorBase.h
@@ -0,0 +1,93 @@
+#pragma once
+
+#include <grpcpp/grpcpp.h>
+
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace comm {
+namespace network {
+namespace reactor {
+
+template <class Request, class Response>
+class ServerBidiReactorBase
+    : public grpc::ServerBidiReactor<Request, Response> {
+  Request request;
+  Response response;
+
+protected:
+  grpc::Status status;
+  bool readingAborted = false;
+  bool sendLastResponse = false;
+
+public:
+  ServerBidiReactorBase();
+
+  void OnDone() override;
+  void OnReadDone(bool ok) override;
+  void OnWriteDone(bool ok) override;
+
+  void terminate(grpc::Status status);
+
+  virtual std::unique_ptr<grpc::Status>
+  handleRequest(Request request, Response *response) = 0;
+  virtual void initialize(){};
+  virtual void doneCallback(){};
+};
+
+template <class Request, class Response>
+ServerBidiReactorBase<Request, Response>::ServerBidiReactorBase() {
+  this->initialize();
+  this->StartRead(&this->request);
+}
+
+template <class Request, class Response>
+void ServerBidiReactorBase<Request, Response>::OnDone() {
+  this->doneCallback();
+  delete this;
+}
+
+template <class Request, class Response>
+void ServerBidiReactorBase<Request, Response>::terminate(grpc::Status status) {
+  this->status = status;
+  if (this->sendLastResponse) {
+    this->StartWriteAndFinish(&this->response, grpc::WriteOptions(), status);
+  } else {
+    this->Finish(status);
+  }
+}
+
+template <class Request, class Response>
+void ServerBidiReactorBase<Request, Response>::OnReadDone(bool ok) {
+  if (!ok) {
+    this->readingAborted = true;
+    this->terminate(grpc::Status(grpc::StatusCode::ABORTED, "no more reads"));
+    return;
+  }
+  try {
+    this->response = Response();
+    std::unique_ptr<grpc::Status> status =
+        this->handleRequest(this->request, &this->response);
+    if (status != nullptr) {
+      this->terminate(*status);
+      return;
+    }
+    this->StartWrite(&this->response);
+  } catch (std::runtime_error &e) {
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
+  }
+}
+
+template <class Request, class Response>
+void ServerBidiReactorBase<Request, Response>::OnWriteDone(bool ok) {
+  if (!ok) {
+    std::cout << "Server write failed" << std::endl;
+    return;
+  }
+  this->StartRead(&this->request);
+}
+
+} // namespace reactor
+} // namespace network
+} // namespace comm
diff --git a/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerReadReactorBase.h b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerReadReactorBase.h
new file mode 100644
--- /dev/null
+++ b/services/backup/docker-server/contents/server/src/Reactors/server/base-reactors/ServerReadReactorBase.h
@@ -0,0 +1,75 @@
+#pragma once
+
+#include <grpcpp/grpcpp.h>
+
+#include <iostream>
+#include <memory>
+#include <string>
+
+namespace comm {
+namespace network {
+namespace reactor {
+
+template <class Request, class Response>
+class ServerReadReactorBase : public grpc::ServerReadReactor<Request> {
+  Request request;
+
+  void terminate(grpc::Status status);
+
+protected:
+  Response *response;
+  grpc::Status status;
+
+public:
+  ServerReadReactorBase(Response *response);
+
+  void OnDone() override;
+  void OnReadDone(bool ok) override;
+
+  virtual std::unique_ptr<grpc::Status> readRequest(Request request) = 0;
+  virtual void initialize(){};
+  virtual void doneCallback(){};
+};
+
+template <class Request, class Response>
+void ServerReadReactorBase<Request, Response>::terminate(grpc::Status status) {
+  this->status = status;
+  this->Finish(status);
+}
+
+template <class Request, class Response>
+ServerReadReactorBase<Request, Response>::ServerReadReactorBase(
+    Response *response)
+    : response(response) {
+  this->initialize();
+  this->StartRead(&this->request);
+}
+
+template <class Request, class Response>
+void ServerReadReactorBase<Request, Response>::OnDone() {
+  this->doneCallback();
+  delete this;
+}
+
+template <class Request, class Response>
+void ServerReadReactorBase<Request, Response>::OnReadDone(bool ok) {
+  if (!ok) {
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, "reading error"));
+    return;
+  }
+  try {
+    std::unique_ptr<grpc::Status> status = this->readRequest(this->request);
+    if (status != nullptr) {
+      this->terminate(*status);
+      return;
+    }
+  } catch (std::runtime_error &e) {
+    this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
+    return;
+  }
+  this->StartRead(&this->request);
+}
+
+} // namespace reactor
+} // 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 +1,86 @@
+#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;
+
+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>
+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->Finish(*status);
+      return;
+    }
+    this->StartWrite(&this->response);
+  } catch (std::runtime_error &e) {
+    std::cout << "error: " << e.what() << std::endl;
+    this->Finish(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->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 reactor
+} // namespace network
+} // namespace comm