diff --git a/src/endpoints_handlers/AuthRegistrationExecutor.h b/src/endpoints_handlers/AuthRegistrationExecutor.h
index 440093b..436441d 100644
--- a/src/endpoints_handlers/AuthRegistrationExecutor.h
+++ b/src/endpoints_handlers/AuthRegistrationExecutor.h
@@ -9,6 +9,8 @@
 #include "IExecutor.h"
 #include "../DAO/IUserDAO.h"
 #include "../exceptions/exception400_bad_request.h"
+#include "../exceptions/exception409_conflict.h"
+#include "../exceptions/exception422_unprocessable_entity.h"
 
 namespace uad
 {
@@ -36,7 +38,6 @@ public:
 
     const auto& body = req.body();
     value req_json;
-    value response_body;
 
     try
     {
@@ -47,41 +48,19 @@ public:
       throw exception400_bad_request("cannot deserialize json");
     }
 
-    response_body.emplace_object();
-
     const std::string login = req_json.as_object().at("login").as_string().c_str();
     const std::string password = req_json.as_object().at("password").as_string().c_str();
 
     if (!ValidateLogin(login) || !ValidatePassword(password))
     {
-      http::response<ResponseType> res{http::status::unprocessable_entity, req.version()};
-
-      response_body.as_object().emplace(
-        "Result",
-        "Validations failed. Login should have length from 3 to 50. Password from 5 characters length."
+      throw exception422_unprocessable_entity(
+        "Validations failed. Login should have length from 3 to 50. Password from 5 characters length."s
         );
-
-      res.body() = serialize(response_body);
-      res.set(http::field::content_type, "application/json");
-      res.content_length(res.body().size());
-
-      return res;
     }
 
     if (user_dao_->GetByLogin(login).has_value())
     {
-      http::response<ResponseType> res{http::status::conflict, req.version()};
-
-      response_body.as_object().emplace(
-        "Result",
-        "user with login "s + login + " exists"s
-        );
-
-      res.body() = serialize(response_body);
-      res.set(http::field::content_type, "application/json");
-      res.content_length(res.body().size());
-
-      return res;
+      throw exception409_conflict("user with login "s + login + " exists"s);
     }
 
     user user;
@@ -94,6 +73,9 @@ public:
     http::response<ResponseType> res{
         http::status::created, req.version()
       };
+    value response_body;
+
+    response_body.emplace_object();
 
     response_body.as_object().emplace(
         "uuid",
diff --git a/src/endpoints_handlers/RootExecutor.h b/src/endpoints_handlers/RootExecutor.h
index 480f679..53e1ca8 100644
--- a/src/endpoints_handlers/RootExecutor.h
+++ b/src/endpoints_handlers/RootExecutor.h
@@ -108,6 +108,34 @@ public:
           res.set(boost::beast::http::field::content_type, "application/json");
           res.content_length(res.body().size());
 
+          return send(std::move(res));
+        }
+        catch (const exception409_conflict& e)
+        {
+          boost::beast::http::response<ResponseType> res{boost::beast::http::status::conflict, req.version()};
+          boost::json::value response_body;
+
+          response_body.emplace_object();
+          response_body.as_object().emplace("Result", e.what());
+
+          res.body() = serialize(response_body);
+          res.set(boost::beast::http::field::content_type, "application/json");
+          res.content_length(res.body().size());
+
+          return send(std::move(res));
+        }
+        catch (const exception422_unprocessable_entity& e)
+        {
+          boost::beast::http::response<ResponseType> res{boost::beast::http::status::unprocessable_entity, req.version()};
+          boost::json::value response_body;
+
+          response_body.emplace_object();
+          response_body.as_object().emplace("Result", e.what());
+
+          res.body() = serialize(response_body);
+          res.set(boost::beast::http::field::content_type, "application/json");
+          res.content_length(res.body().size());
+
           return send(std::move(res));
         }
       }