ntakouris

public class PostResponse
{
    public Guid Id { get; set; }

    public string Name { get; set; }

    public string UserId { get; set; }

    public IEnumerable<TagResponse> Tags { get; set; }
}

ntakouris

public class TagResponse
{
    public string Name { get; set; }
}

ntakouris

var response = new XResponse {
  Name = XDomain.Name;
  Id = XDomain.Id
};

ntakouris

public DomainToResponseProfile()
{
    CreateMap<Post, PostResponse>()
        .ForMember(dest => dest.Tags, opt => 
            opt.MapFrom(src => src.Tags.Select(x => new TagResponse{Name = x.TagName})));

    CreateMap<Tag, TagResponse>();
}

ntakouris

if(string.IsNullOrEmpty(request.TagName)
{
  return BadRequest(new {error = "Tag name should not be empty"});
}

ntakouris

public CreateTagRequestValidator()
{
    RuleFor(x => x.TagName)
        .NotEmpty()
        .Matches("^[a-zA-Z0-9 ]*$"); // alphanumerics and space
}

ntakouris

public class ErrorModel
{
    public string FieldName { get; set; } // actual name of the field

    public string Message { get; set; } // user friendly error message
}

ntakouris

public async Task OnActionExecutionAsync(ActionExecutingContext context, ActionExecutionDelegate next)
{
    if (!context.ModelState.IsValid)
    {
        var errorsInModelState = context.ModelState
            .Where(x => x.Value.Errors.Count > 0)
            .ToDictionary(kvp => kvp.Key, kvp => kvp.Value.Errors.Select(x => x.ErrorMessage)).ToArray();

        var errorResponse = new ErrorResponse();

ntakouris

var xmlFile = $"{Assembly.GetExecutingAssembly().GetName().Name}.xml";
var xmlPath = Path.Combine(AppContext.BaseDirectory, xmlFile);
x.IncludeXmlComments(xmlPath);

ntakouris

<PropertyGroup>
  <GenerateDocumentationFile>true</GenerateDocumentationFile>
  <NoWarn>$(NoWarn);1591</NoWarn>
</PropertyGroup>