Add project files.

Core.Blueprint.Service.UseCases/UpdateSampleItem/Adapter/UpdateSampleItemPort.cs

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+using Core.Blueprint.Service.Domain.Entities;
+using Core.Blueprint.Service.UseCases.UpdateSampleItem.Ports;
+using Lib.Architecture.BuildingBlocks;
+using Microsoft.AspNetCore.Mvc;
+
+namespace Core.Blueprint.Service.UseCases.UpdateSampleItem.Adapter
+{
+    public class UpdateSampleItemPort : BasePresenter, IUpdateSampleItemPort
+    {
+        public void Success(SqlSampleItemEntity output)
+        {
+            ViewModel = new OkObjectResult(output);
+        }
+    }
+}

Core.Blueprint.Service.UseCases/UpdateSampleItem/Input/UpdateSampleItemRequest.cs

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+using Lib.Architecture.BuildingBlocks;
+
+namespace Core.Blueprint.Service.UseCases.UpdateSampleItem.Input
+{
+    public class UpdateSampleItemRequest : Notificator, ICommand
+    {
+        public string Id { get; set; } = string.Empty;
+        public string TestName { get; set; } = string.Empty;
+        public int NumValue { get; set; } = 0;
+        public char StatusCode { get; set; } = 'P';
+
+        public bool Validate()
+        {
+            return true;
+        }
+    }
+}

Core.Blueprint.Service.UseCases/UpdateSampleItem/Ports/IUpdateSampleItemPort.cs

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+using Core.Blueprint.Service.Domain.Entities;
+using Lib.Architecture.BuildingBlocks;
+
+namespace Core.Blueprint.Service.UseCases.UpdateSampleItem.Ports
+{
+    public interface IUpdateSampleItemPort : IBasePort, ICommandSuccessPort<SqlSampleItemEntity>, INoContentPort, IBusinessErrorPort, ITimeoutPort, IValidationErrorPort
+    {
+    }
+}

Core.Blueprint.Service.UseCases/UpdateSampleItem/UpdateSampleItemHandler.cs

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+using Core.Blueprint.Service.Domain.Entities;
+using Core.Blueprint.Service.External.Clients.SampleItemClient;
+using Core.Blueprint.Service.UseCases.UpdateSampleItem.Input;
+using Core.Blueprint.Service.UseCases.UpdateSampleItem.Ports;
+using FluentValidation;
+using Lib.Architecture.BuildingBlocks;
+
+namespace Core.Blueprint.Service.UseCases.UpdateSampleItem
+{
+    public class UpdateSampleItemHandler(IUpdateSampleItemPort port, IValidator<UpdateSampleItemRequest> validator, ISampleItemClientService clientService) : IComponentHandler<UpdateSampleItemRequest>
+    {
+        private readonly IUpdateSampleItemPort _port = port;
+        private readonly IValidator<UpdateSampleItemRequest> _validator = validator;
+        private readonly ISampleItemClientService _clientService = clientService;
+
+        public async ValueTask ExecuteAsync(UpdateSampleItemRequest command, CancellationToken cancellationToken = default)
+        {
+            try
+            {
+                if (!command.IsValid(_validator))
+                {
+                    _port.ValidationErrors(command.Notifications);
+                    return;
+                }
+
+                var result = await _clientService.UpdateSampleItemAsync(command.Id,
+
+                    new SqlSampleItemEntity { Id = command.Id, TestName = command.TestName, NumValue = command.NumValue, StatusCode = command.StatusCode });
+
+                if (result == null)
+                {
+                    _port.NoContentSuccess();
+                    return;
+                }
+
+                _port.Success(result);
+            }
+            catch (Exception ex)
+            {
+                _port.BusinessError(ex.Message);
+            }
+
+        }
+    }
+}

Core.Blueprint.Service.UseCases/UpdateSampleItem/Validator/UpdateSampleItemValidator.cs

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+using Core.Blueprint.Service.UseCases.UpdateSampleItem.Input;
+using FluentValidation;
+using System.Diagnostics.CodeAnalysis;
+
+namespace Core.Blueprint.Service.UseCases.UpdateSampleItem.Validator
+{
+    [ExcludeFromCodeCoverage]
+    public class UpdateSampleItemValidator : AbstractValidator<UpdateSampleItemRequest>
+    {
+        public UpdateSampleItemValidator()
+        {
+            RuleFor(i => i.TestName).NotNull().NotEmpty().WithMessage("Is required.");
+            RuleFor(i => i.NumValue).GreaterThanOrEqualTo(1).LessThanOrEqualTo(100).WithMessage("Should be between 1-100.");
+        }
+    }
+}