add postgres and refactor code

handler/users.go

@@ -129,7 +129,7 @@ func (h *Handler) DeleteUser(c echo.Context) (err error) {
 }
 
 func (h *Handler) CreateUser(c echo.Context) (err error) {
-	var user = new(model.User)
+	user := new(model.APIUser)
 
 	if err = c.Bind(user); err != nil {
 		return c.NoContent(http.StatusBadRequest)
@@ -137,13 +137,17 @@ func (h *Handler) CreateUser(c echo.Context) (err error) {
 
 	user.Password = fmt.Sprintf("%x", sha256.Sum256([]byte(user.Password)))
 
-	tx := h.DB.Create(user)
+	newUser, err := utils.TypeConverter[model.User](&user)
+
+	tx := h.DB.Create(&newUser)
 
 	if tx.RowsAffected == 0 {
 		return c.NoContent(http.StatusBadGateway)
 	}
 
-	user.Password = ""
+	newUser.Password = ""
 
-	return c.JSON(http.StatusCreated, user)
+	h.DB.Find(&newUser.Position, newUser.PositionID)
+
+	return c.JSON(http.StatusCreated, newUser)
 }