Customizing IdentityUser

IdentityUser has the following fields: Id, Username, Password, Email, and Phonenumber.

Since the display name might differ from the username, we should add a Name property. Say we would like to send birthday wishes to the user; so, we would like to know their date of birth.

To do so, a file called WebAppUser.cs is added to the Data folder that contains the following lines:

using Microsoft.AspNetCore.Identity;
namespace AuthSample.Data;
public class WebAppUser : IdentityUser
{
    [PersonalData]
    public string? Name { get; set; }
    [PersonalData]
    public DateTime DOB { get; set; }
}

As shown here, WebAppUser derives from IdentityUser and extends it with the two already-mentioned properties.

In Program.cs, we need to modify the service registration to use the new WebAppUser:

builder.Services.AddDefaultIdentity<WebAppUser>

We also need to change...