diff --git a/services/backup/docker-server/contents/server/src/BackupServiceImpl.h b/services/backup/docker-server/contents/server/src/BackupServiceImpl.h
--- a/services/backup/docker-server/contents/server/src/BackupServiceImpl.h
+++ b/services/backup/docker-server/contents/server/src/BackupServiceImpl.h
@@ -8,31 +8,27 @@
 namespace comm {
 namespace network {
 
-class BackupServiceImpl final : public backup::BackupService::Service {
+class BackupServiceImpl final : public backup::BackupService::CallbackService {
 
 public:
   BackupServiceImpl();
   virtual ~BackupServiceImpl();
 
-  grpc::Status CreateNewBackup(
-      grpc::ServerContext *context,
-      grpc::ServerReaderWriter<
-          backup::CreateNewBackupResponse,
-          backup::CreateNewBackupRequest> *stream) override;
-  grpc::Status SendLog(
-      grpc::ServerContext *context,
-      grpc::ServerReader<backup::SendLogRequest> *reader,
-      google::protobuf::Empty *response) override;
-  grpc::Status RecoverBackupKey(
-      grpc::ServerContext *context,
-      grpc::ServerReaderWriter<
-          backup::RecoverBackupKeyResponse,
-          backup::RecoverBackupKeyRequest> *stream) override;
-  grpc::Status PullBackup(
-      grpc::ServerContext *context,
-      grpc::ServerReaderWriter<
-          backup::PullBackupResponse,
-          backup::PullBackupRequest> *stream) override;
+  grpc::ServerBidiReactor<
+      backup::CreateNewBackupRequest,
+      backup::CreateNewBackupResponse> *
+  CreateNewBackup(grpc::CallbackServerContext *context) override;
+
+  grpc::ServerBidiReactor<backup::SendLogRequest, google::protobuf::Empty> *
+  SendLog(grpc::CallbackServerContext *context) override;
+
+  grpc::ServerBidiReactor<
+      backup::RecoverBackupKeyRequest,
+      backup::RecoverBackupKeyResponse> *
+  RecoverBackupKey(grpc::CallbackServerContext *context) override;
+
+  grpc::ServerBidiReactor<backup::PullBackupRequest, backup::PullBackupResponse>
+      *PullBackup(grpc::CallbackServerContext *context) override;
 };
 
 } // namespace network
diff --git a/services/backup/docker-server/contents/server/src/BackupServiceImpl.cpp b/services/backup/docker-server/contents/server/src/BackupServiceImpl.cpp
--- a/services/backup/docker-server/contents/server/src/BackupServiceImpl.cpp
+++ b/services/backup/docker-server/contents/server/src/BackupServiceImpl.cpp
@@ -1,5 +1,9 @@
 #include "BackupServiceImpl.h"
 
+#include "PakeAuthenticationHandler.h"
+#include "ReactorBase.h"
+#include "WalletAuthenticationHandler.h"
+
 #include <aws/core/Aws.h>
 
 namespace comm {
@@ -13,35 +17,78 @@
   Aws::ShutdownAPI({});
 }
 
-grpc::Status BackupServiceImpl::CreateNewBackup(
-    grpc::ServerContext *context,
-    grpc::ServerReaderWriter<
-        backup::CreateNewBackupResponse,
-        backup::CreateNewBackupRequest> *stream) {
-  return grpc::Status(grpc::StatusCode::UNIMPLEMENTED, "not implemented yet");
+grpc::ServerBidiReactor<
+    backup::CreateNewBackupRequest,
+    backup::CreateNewBackupResponse> *
+BackupServiceImpl::CreateNewBackup(grpc::CallbackServerContext *context) {
+  class CreateNewBackupReactor : public ReactorBase<
+                                     backup::CreateNewBackupRequest,
+                                     backup::CreateNewBackupResponse> {
+  public:
+    backup::CreateNewBackupResponse
+    handleRequest(backup::CreateNewBackupRequest request) override {
+      throw EndConnectionError();
+      // TODO handle request
+      // backup::CreateNewBackupResponse response;
+      // return response;
+    }
+  };
+
+  return new CreateNewBackupReactor();
 }
 
-grpc::Status BackupServiceImpl::SendLog(
-    grpc::ServerContext *context,
-    grpc::ServerReader<backup::SendLogRequest> *reader,
-    google::protobuf::Empty *response) {
-  return grpc::Status(grpc::StatusCode::UNIMPLEMENTED, "not implemented yet");
+grpc::ServerBidiReactor<backup::SendLogRequest, google::protobuf::Empty> *
+BackupServiceImpl::SendLog(grpc::CallbackServerContext *context) {
+  class SendLogReactor
+      : public ReactorBase<backup::SendLogRequest, google::protobuf::Empty> {
+  public:
+    google::protobuf::Empty
+    handleRequest(backup::SendLogRequest request) override {
+      throw EndConnectionError();
+      // TODO handle request
+      return google::protobuf::Empty();
+    }
+  };
+
+  return new SendLogReactor();
 }
 
-grpc::Status BackupServiceImpl::RecoverBackupKey(
-    grpc::ServerContext *context,
-    grpc::ServerReaderWriter<
-        backup::RecoverBackupKeyResponse,
-        backup::RecoverBackupKeyRequest> *stream) {
-  return grpc::Status(grpc::StatusCode::UNIMPLEMENTED, "not implemented yet");
+grpc::ServerBidiReactor<
+    backup::RecoverBackupKeyRequest,
+    backup::RecoverBackupKeyResponse> *
+BackupServiceImpl::RecoverBackupKey(grpc::CallbackServerContext *context) {
+  class RecoverBackupKeyReactor : public ReactorBase<
+                                      backup::RecoverBackupKeyRequest,
+                                      backup::RecoverBackupKeyResponse> {
+  public:
+    backup::RecoverBackupKeyResponse
+    handleRequest(backup::RecoverBackupKeyRequest request) override {
+      throw EndConnectionError();
+      // TODO handle request
+      // backup::RecoverBackupKeyResponse response;
+      // return response;
+    }
+  };
+
+  return new RecoverBackupKeyReactor();
 }
 
-grpc::Status BackupServiceImpl::PullBackup(
-    grpc::ServerContext *context,
-    grpc::ServerReaderWriter<
-        backup::PullBackupResponse,
-        backup::PullBackupRequest> *stream) {
-  return grpc::Status(grpc::StatusCode::UNIMPLEMENTED, "not implemented yet");
+grpc::ServerBidiReactor<backup::PullBackupRequest, backup::PullBackupResponse> *
+BackupServiceImpl::PullBackup(grpc::CallbackServerContext *context) {
+  class PullBackupReactor : public ReactorBase<
+                                backup::PullBackupRequest,
+                                backup::PullBackupResponse> {
+  public:
+    backup::PullBackupResponse
+    handleRequest(backup::PullBackupRequest request) override {
+      throw EndConnectionError();
+      // TODO handle request
+      // backup::PullBackupResponse response;
+      // return response;
+    }
+  };
+
+  return new PullBackupReactor();
 }
 
 } // namespace network