AK DTO authentification with first_name and Last_Name

BackEndAaaapero/DTO/CustomerDTO.cs

@@ -1,12 +1,19 @@
 using System.Collections.Generic;
 using Models;
+using System.ComponentModel.DataAnnotations;
 
 namespace DTO
 {
     public class CustomerDTO
     {
-        public int customer_id { get; set; }
+        public int Customer_id { get; set; }
+
         public string First_name {get; set;}
         public string Last_name { get; set; }
+        
+        [Required]
+        public string username { get; set; }
+        [Required]
+        public string password { get; set; }
     }
 }

BackEndAaaapero/DTO/RegisterModel.cs

@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+namespace DTO
+{
+    public class RegisterModel
+    {
+        [Required]
+        public string FirstName { get; set; }
+
+        [Required]
+        public string LastName { get; set; }
+
+        [Required]
+        public string Username { get; set; }
+
+        [Required]
+        public string Password { get; set; }
+    }
+}

BackEndAaaapero/DTO/UpdateModel.cs

@@ -0,0 +1,12 @@
+namespace DTO
+{
+    public class UpdateModel
+    {
+        public string FirstName { get; set; }
+        public string LastName { get; set; }
+        public string Username { get; set; }
+        public string CurrentPassword { get; set; }
+        public string NewPassword { get; set; }
+        public string ConfirmNewPassword { get; set; }
+    }
+}

BackEndAaaapero/DTO/UserModel.cs

@@ -0,0 +1,10 @@
+namespace DTO
+{
+    public class UserModel
+    {
+        public int Id { get; set; }
+        public string FirstName { get; set; }
+        public string LastName { get; set; }
+        public string Username { get; set; }
+    }
+}