diff --git a/services/lib/src/client-base-reactors/ClientBidiReactorBase.h b/services/lib/src/client-base-reactors/ClientBidiReactorBase.h
--- a/services/lib/src/client-base-reactors/ClientBidiReactorBase.h
+++ b/services/lib/src/client-base-reactors/ClientBidiReactorBase.h
@@ -3,6 +3,7 @@
 #include "BaseReactor.h"
 
 #include <grpcpp/grpcpp.h>
+#include <glog/logging.h>
 
 namespace comm {
 namespace network {
@@ -108,8 +109,7 @@
     this->statusHolder->setStatus(status);
   }
   if (!this->statusHolder->getStatus().ok()) {
-    std::cout << "error: " << this->statusHolder->getStatus().error_message()
-              << std::endl;
+    LOG(ERROR) << this->statusHolder->getStatus().error_message();
   }
   if (this->statusHolder->state != ReactorState::RUNNING) {
     return;
diff --git a/services/lib/src/client-base-reactors/ClientReadReactorBase.h b/services/lib/src/client-base-reactors/ClientReadReactorBase.h
--- a/services/lib/src/client-base-reactors/ClientReadReactorBase.h
+++ b/services/lib/src/client-base-reactors/ClientReadReactorBase.h
@@ -3,6 +3,7 @@
 #include "BaseReactor.h"
 
 #include <grpcpp/grpcpp.h>
+#include <glog/logging.h>
 
 namespace comm {
 namespace network {
@@ -86,8 +87,7 @@
     this->statusHolder->setStatus(status);
   }
   if (!this->statusHolder->getStatus().ok()) {
-    std::cout << "error: " << this->statusHolder->getStatus().error_message()
-              << std::endl;
+    LOG(ERROR) << this->statusHolder->getStatus().error_message();
   }
   if (this->statusHolder->state != ReactorState::RUNNING) {
     return;
diff --git a/services/lib/src/client-base-reactors/ClientWriteReactorBase.h b/services/lib/src/client-base-reactors/ClientWriteReactorBase.h
--- a/services/lib/src/client-base-reactors/ClientWriteReactorBase.h
+++ b/services/lib/src/client-base-reactors/ClientWriteReactorBase.h
@@ -3,6 +3,7 @@
 #include "BaseReactor.h"
 
 #include <grpcpp/grpcpp.h>
+#include <glog/logging.h>
 
 namespace comm {
 namespace network {
@@ -93,8 +94,7 @@
     this->statusHolder->setStatus(status);
   }
   if (!this->statusHolder->getStatus().ok()) {
-    std::cout << "error: " << this->statusHolder->getStatus().error_message()
-              << std::endl;
+    LOG(ERROR) << this->statusHolder->getStatus().error_message();
   }
   if (this->statusHolder->state != ReactorState::RUNNING) {
     return;
diff --git a/services/lib/src/server-base-reactors/ServerReadReactorBase.h b/services/lib/src/server-base-reactors/ServerReadReactorBase.h
--- a/services/lib/src/server-base-reactors/ServerReadReactorBase.h
+++ b/services/lib/src/server-base-reactors/ServerReadReactorBase.h
@@ -3,6 +3,7 @@
 #include "BaseReactor.h"
 
 #include <grpcpp/grpcpp.h>
+#include <glog/logging.h>
 
 #include <atomic>
 #include <iostream>
@@ -91,8 +92,7 @@
         grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
   }
   if (!this->statusHolder->getStatus().ok()) {
-    std::cout << "error: " << this->statusHolder->getStatus().error_message()
-              << std::endl;
+    LOG(ERROR) << this->statusHolder->getStatus().error_message();
   }
   if (this->statusHolder->state != ReactorState::RUNNING) {
     return;
diff --git a/services/lib/src/server-base-reactors/ServerWriteReactorBase.h b/services/lib/src/server-base-reactors/ServerWriteReactorBase.h
--- a/services/lib/src/server-base-reactors/ServerWriteReactorBase.h
+++ b/services/lib/src/server-base-reactors/ServerWriteReactorBase.h
@@ -3,6 +3,7 @@
 #include "BaseReactor.h"
 
 #include <grpcpp/grpcpp.h>
+#include <glog/logging.h>
 
 #include <atomic>
 #include <iostream>
@@ -69,8 +70,7 @@
         grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
   }
   if (!this->statusHolder->getStatus().ok()) {
-    std::cout << "error: " << this->statusHolder->getStatus().error_message()
-              << std::endl;
+    LOG(ERROR) << this->statusHolder->getStatus().error_message();
   }
   if (this->statusHolder->state != ReactorState::RUNNING) {
     return;
@@ -105,7 +105,7 @@
     }
     this->StartWrite(&this->response);
   } catch (std::runtime_error &e) {
-    std::cout << "error: " << e.what() << std::endl;
+    LOG(ERROR) << "error: " << e.what();
     this->terminate(grpc::Status(grpc::StatusCode::INTERNAL, e.what()));
   }
 }