dotnet demos

DataObject.cs

using System;
using System.Collections.Generic;
using System.Linq;

public class UserDTO {
  
  public string Id { get; set; }
  public string Login { get; set; }
  public string FirstName { get; set; }
  public string LastName { get; set; }
  public string Email { get; set; }
  public string ImageUrl { get; set; }
  public bool Activated { get; set; }
  public string LangKey { get; set; }
  public ISet<string> Roles { get; set; }
}

public class Program
{
  public static void Main()
  {
    var userDto = new UserDTO {
      Login = "johwick",
      FirstName = "John",
      LastName = "Wick",
      Email = "john@iluvmydog.com",
      Activated = false,
      ImageUrl = "http://placehold.it/50x50",
      LangKey = "en",
      Roles = new HashSet<string> {
       "ROLE_USER"
      }
    };

    Console.WriteLine(userDto.FirstName);
  }
}

Extension.cs

public static class WebConfiguration {

   public static IServiceCollection AddWebModule(this IServiceCollection @this)
   {
       @this.AddHttpContextAccessor();

       //https://docs.microsoft.com/en-us/aspnet/core/host-and-deploy/health-checks?view=aspnetcore-2.2
       @this.AddHealthChecks();

       @this.AddMvc(options => { 
    options.ModelBinderProviders.Insert(0, new PageableBinderProvider());
       })
       .SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
       .AddJsonOptions(options => {
           options.SerializerSettings.NullValueHandling = NullValueHandling.Ignore;
       });

       return @this;
   }

}

Program.cs

public async Task<User> CreateUser(UserDto userDto)
{
   var user = new User {
       UserName = userDto.Login.ToLower(),
       FirstName = userDto.FirstName,
       LastName = userDto.LastName,
       Email = userDto.Email.ToLower(),
       ImageUrl = userDto.ImageUrl,
       LangKey = userDto.LangKey ?? Constants.DefaultLangKey,
       PasswordHash = "..."
       ResetKey = RandomUtil.GenerateResetKey(),
       ResetDate = DateTime.Now,
       Activated = true
   };
   await _userManager.CreateAsync(user);
   await CreateUserRoles(user, userDto.Roles);
   _log.LogDebug($"Created Information for User: {user}");
   return user;
}