cqrs.

Demo/Commands/CreatePersonCommand.cs

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+using FluentValidation;
+using PoweredSoft.CQRS.Abstractions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Demo.Commands
+{
+    public class CreatePersonCommand
+    {
+        public string FirstName { get; set; }
+        public string LastName { get; set; }
+    }
+
+    public class CreatePersonCommandValidator : AbstractValidator<CreatePersonCommand>
+    {
+        public CreatePersonCommandValidator()
+        {
+            RuleFor(t => t.FirstName).NotEmpty();
+            RuleFor(t => t.LastName).NotEmpty();
+        }
+    }
+
+    public class CreatePersonCommandHandler : ICommandHandler<CreatePersonCommand>
+    {
+        public Task HandleAsync(CreatePersonCommand command, CancellationToken cancellationToken = default)
+        {
+            return Task.CompletedTask;
+        }
+    }
+}

Demo/Commands/EchoCommand.cs

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+using FluentValidation;
+using PoweredSoft.CQRS.Abstractions;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading;
+using System.Threading.Tasks;
+
+namespace Demo.Commands
+{
+    public class EchoCommand
+    {
+        public string Message { get; set; }
+    }
+
+    public class EchoCommandValidator : AbstractValidator<EchoCommand>
+    {
+        public EchoCommandValidator()
+        {
+            RuleFor(t => t.Message).NotEmpty();
+        }
+    }
+
+    public class EchoCommandHandler : ICommandHandler<EchoCommand, string>
+    {
+        public Task<string> HandleAsync(EchoCommand command, CancellationToken cancellationToken = default)
+        {
+            return Task.FromResult(command.Message);
+        }
+    }
+}