Add project files.

Core.Blueprint.Service.UseCases/GetSecret/Validator/GetSecretValidator.cs

@@ -0,0 +1,21 @@
+using Core.Blueprint.Service.UseCases.GetSampleItems.Input;
+using Core.Blueprint.Service.UseCases.GetSecret.Input;
+using FluentValidation;
+using System;
+using System.Collections.Generic;
+using System.Diagnostics.CodeAnalysis;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Core.Blueprint.Service.UseCases.GetSecret.Validator
+{
+    [ExcludeFromCodeCoverage]
+    public class GetSecretValidator : AbstractValidator<GetSecretRequest>
+    {
+        public GetSecretValidator()
+        {
+            RuleFor(i => i.Secret).NotNull().NotEmpty().WithMessage("Is required.");
+        }
+    }
+}