diff --git a/server/database/database.go b/server/database/database.go
index c315819..425da93 100644
--- a/server/database/database.go
+++ b/server/database/database.go
@@ -15,7 +15,7 @@ var Slot = sl.NewSlot[Database]()
 type Database interface {
 	// User
 
-	CreateUser(user model.User) error
+	CreateUser(user model.User) (db.Ref[model.User], error)
 	ReadUser(id db.Ref[model.User]) (model.User, error)
 	ReadUsers() ([]model.User, error)
 	UpdateUser(user model.User) error
@@ -40,9 +40,9 @@ type Memory struct {
 	Users []model.User
 }
 
-func (m *Memory) CreateUser(user model.User) error {
+func (m *Memory) CreateUser(user model.User) (db.Ref[model.User], error) {
 	m.Users = append(m.Users, user)
-	return nil
+	return db.Ref[model.User](user.Id), nil
 }
 
 func (m *Memory) ReadUser(id db.Ref[model.User]) (model.User, error) {
diff --git a/server/server.go b/server/server.go
index 1283e10..d45d27b 100644
--- a/server/server.go
+++ b/server/server.go
@@ -16,7 +16,6 @@ var Slot = sl.NewSlot[*Server]()
 var ApiRoutesHook = sl.NewHook[fiber.Router]()
 
 func Configure(l *sl.ServiceLocator) (*Server, error) {
-
 	cfg, err := sl.Use(l, config.Slot)
 	if err != nil {
 		return nil, err