Factory Pattern C#

FactoryPattern.cs

public interface IUser
{
  string Username { get; }
  // rest of the properties
}

public interface IUserFactory
{
    IUser CreateUser(UserState userState);
}


public TwitchUserFactory : IUserFactory
{
   public IUser CreateUser(UserState userState)
   {
        // You can include more information here or validations
       return new TwitchUser(userState);
   }

}