diff --git a/README.md b/README.md
index adbdb6f..c3010e6 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 - ~~Пройтись по коду и максимально наставить const~~
 - Указать возможные исключения в интерфейсах DAO
 - Вынести User в структуру. Hashed Password структура должна изначально состоять в другой структуре
-- SharedPtr - передавать по константной ссылке.
+- ~~SharedPtr - передавать по константной ссылке.~~
 - Сделать интеграционный тест по ручкам
 
 # UseCase'ы приложения:
diff --git a/src/endpoints_handlers/AuthLoginExecutor.h b/src/endpoints_handlers/AuthLoginExecutor.h
index f6b4a51..bf66fb1 100644
--- a/src/endpoints_handlers/AuthLoginExecutor.h
+++ b/src/endpoints_handlers/AuthLoginExecutor.h
@@ -17,13 +17,13 @@ template <class Body, class Allocator, class ResponseType>
 class AuthLoginExecutor : public IExecutor<Body, Allocator, ResponseType>
 {
   mysqlx::Session& session_;
-  std::shared_ptr<IUserDAO> user_dao_;
-  std::shared_ptr<IAuthDAO> auth_dao_;
+  const std::shared_ptr<IUserDAO>& user_dao_;
+  const std::shared_ptr<IAuthDAO>& auth_dao_;
 
 public:
   AuthLoginExecutor(mysqlx::Session& session,
-                           std::shared_ptr<IUserDAO> user_dao,
-                           std::shared_ptr<IAuthDAO> auth_dao)
+                           const std::shared_ptr<IUserDAO>& user_dao,
+                           const std::shared_ptr<IAuthDAO>& auth_dao)
     : session_(session), user_dao_(user_dao), auth_dao_(auth_dao)
   {
   }
diff --git a/src/endpoints_handlers/AuthRegistrationExecutor.h b/src/endpoints_handlers/AuthRegistrationExecutor.h
index aee194d..2532b6b 100644
--- a/src/endpoints_handlers/AuthRegistrationExecutor.h
+++ b/src/endpoints_handlers/AuthRegistrationExecutor.h
@@ -15,11 +15,11 @@ template <class Body, class Allocator, class ResponseType>
 class AuthRegistrationExecutor : public IExecutor<Body, Allocator, ResponseType>
 {
   mysqlx::Session& session_;
-  std::shared_ptr<IUserDAO> user_dao_;
+  const std::shared_ptr<IUserDAO>& user_dao_;
 
 public:
   AuthRegistrationExecutor(mysqlx::Session& session,
-                           std::shared_ptr<IUserDAO> user_dao)
+                           const std::shared_ptr<IUserDAO>& user_dao)
     : session_(session), user_dao_(user_dao)
   {
   }
diff --git a/src/endpoints_handlers/HandleRequest.h b/src/endpoints_handlers/HandleRequest.h
index 860faf6..3f3b008 100644
--- a/src/endpoints_handlers/HandleRequest.h
+++ b/src/endpoints_handlers/HandleRequest.h
@@ -17,10 +17,13 @@ void HandleRequest(
   boost::beast::http::request<Body, boost::beast::http::basic_fields<Allocator>>&& req,
   Send&& send)
 {
+  static std::shared_ptr<IUserDAO> user_dao = std::make_shared<MySQLUserDAO>(GetMySqlSession());
+  static std::shared_ptr<IAuthDAO> auth_dao = std::make_shared<MemoryAuthDAO>(GetMySqlSession());
+
   static RootExecutor<Body, Allocator, boost::beast::http::string_body, Send> root_executor(
     GetMySqlSession(),
-    std::make_shared<MySQLUserDAO>(GetMySqlSession()),
-    std::make_shared<MemoryAuthDAO>(GetMySqlSession())
+    user_dao,
+    auth_dao
   );
 
   root_executor(doc_root, std::move(req), std::forward<Send>(send));
diff --git a/src/endpoints_handlers/RootExecutor.h b/src/endpoints_handlers/RootExecutor.h
index 03714ae..9adecc8 100644
--- a/src/endpoints_handlers/RootExecutor.h
+++ b/src/endpoints_handlers/RootExecutor.h
@@ -28,14 +28,14 @@ class RootExecutor
 private:
   RoutesPathes routes_pathes_;
   mysqlx::Session& session_;
-  std::shared_ptr<IUserDAO> user_dao_;
-  std::shared_ptr<IAuthDAO> auth_dao_;
+  const std::shared_ptr<IUserDAO>& user_dao_;
+  const std::shared_ptr<IAuthDAO>& auth_dao_;
 
 public:
   RootExecutor(
     mysqlx::Session& session,
-    std::shared_ptr<IUserDAO> user_dao,
-    std::shared_ptr<IAuthDAO> auth_dao) :
+    const std::shared_ptr<IUserDAO>& user_dao,
+    const std::shared_ptr<IAuthDAO>& auth_dao) :
     session_(session), user_dao_(user_dao), auth_dao_(auth_dao)
   {
     routes_pathes_["/api/v1/Auth/Register"] = std::make_unique<RouteController>(