This is example source code using Population.NET libraries

• Models

  public class User : BaseEntity
  {
      public string Name { get; set; } = default!;
  
      public string Email { get; set; } = default!;
  
      public string UserName { get; set; } = default!;
  
      public string Password { get; set; } = default!;
  
      public UserOperationStatus Status { get; set; } = UserOperationStatus.Active;
  
      public Guid RoleId { get; set; }
  
      public Role? Role { get; set; }
  }
  
  public enum UserOperationStatus
  {
      /// <summary>
      /// Active
      /// </summary>
      Active = 1,
  
      /// <summary>
      /// Locked
      /// </summary>
      Locked = 2,
  }

  public class Role : BaseEntity
  {
      public string Name { get; set; } = default!;
  
      public string? Description { get; set; }
  
      public ICollection<User> Users { get; set; } = default!;
  
      public ICollection<Permission> Permissions { get; set; } = default!;
  }

  public class Permission : BaseEntity
  {
      public string Code { get; set; } = default!;
  
      public string Name { get; set; } = default!;
  
      public Guid RoleId { get; set; }
  
      public Role? Role { get; set; }
  }

• Response DTOs

  public class UserResponse : BaseEntity
  {
      public string Name { get; set; } = default!;
  
      public string Email { get; set; } = default!;
  
      public string UserName { get; set; } = default!;
  
      public string Password { get; set; } = default!;
  
      public UserOperationStatus Status { get; set; } = UserOperationStatus.Active;
  
      public RoleResponse? Role { get; set; }
  }

  public class RoleResponse : BaseEntity
  {
      public string Name { get; set; } = default!;
  
      public string? Description { get; set; }
  
      public ICollection<PermissionResponse> Permissions { get; set; } = default!;
  }

  public class PermissionResponse : BaseEntity
  {
      public string Code { get; set; } = default!;
  
      public string Name { get; set; } = default!;
  }

• Config mapping

  public class MappingProfile : Profile
  {
      public MappingProfile()
      {
          CreateMap<User, UserResponse>();
          CreateMap<Role, RoleResponse>();
          CreateMap<Permission, PermissionResponse>();
      }
  }

• Prepare Test Data

  Let’s create a simple API for creating users and use the provided test data.

  [HttpPost]
  public async Task<IActionResult> CreateAsync([FromBody] CreateUserRequest request)
  {
      User user = mapper.Map<User>(request);
      await context.Users.AddAsync(user);
      await context.SaveChangesAsync();
      return Ok();
  }

  Example JSON Payload

  {
    "name": "John Doe",
    "email": "[email protected]",
    "userName": "johndoe123",
    "password": "Password@123",
    "status": 1,
    "role": {
      "name": "Admin",
      "description": "Administrator role with full access",
      "permissions": [
             {
                "code": "READ",
                "name": "Read Access"
             },
             {
                "code": "WRITE",
                "name": "Write Access"
             }
          ]
      }
  }

  {
     "name": "Jane Smith",
     "email": "[email protected]",
     "userName": "janesmith456",
     "password": "SecurePass@2024",
     "status": 1,
     "role": {
      "name": "Editor",
      "description": "Editor role with limited access",
      "permissions": [
              {
                  "code": "UPDATE",
                  "name": "Update Access"
              }
          ]
      }
  }

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