IM_NEW/FileService.WebApi/Controllers/FileTask/CompleteTaskRequest.cs

using FileService.Application.StorageContracts;
using FluentValidation;

namespace FileService.WebApi.Controllers.FileTask
{
    public class CompleteTaskRequest
    {
        public string SessionId { get; set; }
        public List<UploadPart> Parts { get; set; }
    }

    public class CompleteTaskRequestValidator : AbstractValidator<CompleteTaskRequest>
    {
        public CompleteTaskRequestValidator()
        {
            RuleFor(x => x.SessionId).NotEmpty()
                .NotNull();

            RuleFor(x => x.Parts)
                .NotNull();
        }
    }
}