diff --git a/samples/apis/Backet.Api/Backet.Api.csproj b/samples/apis/Backet.Api/Backet.Api.csproj
index 75312f8..7b52d42 100644
--- a/samples/apis/Backet.Api/Backet.Api.csproj
+++ b/samples/apis/Backet.Api/Backet.Api.csproj
@@ -5,6 +5,13 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <Compile Remove="Application\**" />
+    <Content Remove="Application\**" />
+    <EmbeddedResource Remove="Application\**" />
+    <None Remove="Application\**" />
+  </ItemGroup>
+
+  <ItemGroup>
     <PackageReference Include="Grpc.AspNetCore" Version="2.26.0" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="3.1.1">
       <PrivateAssets>all</PrivateAssets>
@@ -26,8 +33,5 @@
     <ProjectReference Include="..\..\..\src\Pole.EventStorage.PostgreSql\Pole.EventStorage.PostgreSql.csproj" />
     <ProjectReference Include="..\..\..\src\Pole.Orleans.Provider.EntityframeworkCore\Pole.Orleans.Provider.EntityframeworkCore.csproj" />
   </ItemGroup>
-  <ItemGroup>
-    <Folder Include="Application\IntegrationEvent\" />
-  </ItemGroup>
 
 </Project>
diff --git a/samples/apis/Backet.Api/Controllers/BacketController.cs b/samples/apis/Backet.Api/Controllers/BacketController.cs
index 2b63024..650312c 100644
--- a/samples/apis/Backet.Api/Controllers/BacketController.cs
+++ b/samples/apis/Backet.Api/Controllers/BacketController.cs
@@ -21,7 +21,7 @@ namespace Backet.Api.Controllers
         [HttpPost("api/backet/AddBacket")]
         public Task<bool> AddBacket([FromBody]Backet.Api.Grains.Abstraction.BacketDto backet)
         {
-            var newId = "da8a489fa7b4409294ee1b358fbbfba5";
+            var newId = "da8a489fa7b44092eeeeeee";
             backet.Id = newId;
             var grain = clusterClient.GetGrain<IBacketGrain>(newId);
             return grain.AddBacket(backet);
diff --git a/samples/apis/Backet.Api/Domain/Event/BacketCreatedEvent.cs b/samples/apis/Backet.Api/Domain/Event/BacketCreatedEvent.cs
new file mode 100644
index 0000000..6ec6345
--- /dev/null
+++ b/samples/apis/Backet.Api/Domain/Event/BacketCreatedEvent.cs
@@ -0,0 +1,13 @@
+using Pole.Core.EventBus.Event;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Backet.Api.Domain.Event
+{
+    public class BacketCreatedEvent:IEvent
+    {
+        public string BacketId { get; set; }
+    }
+}
diff --git a/samples/apis/Backet.Api/EventHandlers/ToNoticeBacketCreatedEventHandler.cs b/samples/apis/Backet.Api/EventHandlers/ToNoticeBacketCreatedEventHandler.cs
new file mode 100644
index 0000000..8e20550
--- /dev/null
+++ b/samples/apis/Backet.Api/EventHandlers/ToNoticeBacketCreatedEventHandler.cs
@@ -0,0 +1,17 @@
+using Backet.Api.Domain.Event;
+using Pole.Core.EventBus.EventHandler;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Backet.Api.EventHandlers
+{
+    public class ToNoticeBacketCreatedEventHandler : PoleEventHandler
+    {
+        public Task EventHandle(BacketCreatedEvent @event)
+        {
+            return Task.CompletedTask;
+        }
+    }
+}
diff --git a/samples/apis/Backet.Api/Grains/BacketGrain.cs b/samples/apis/Backet.Api/Grains/BacketGrain.cs
index 3920385..03bd0c6 100644
--- a/samples/apis/Backet.Api/Grains/BacketGrain.cs
+++ b/samples/apis/Backet.Api/Grains/BacketGrain.cs
@@ -1,4 +1,5 @@
-using Backet.Api.Grains.Abstraction;
+using Backet.Api.Domain.Event;
+using Backet.Api.Grains.Abstraction;
 using Pole.Core.Grains;
 using System;
 using System.Collections.Generic;
@@ -16,18 +17,20 @@ namespace Backet.Api.Grains
             Backet.Api.Domain.AggregatesModel.BacketAggregate.Backet backet = new Backet.Api.Domain.AggregatesModel.BacketAggregate.Backet
             {
                 Id = backetDto.Id,
-                UserId= backetDto.UserId
+                UserId = backetDto.UserId
             };
             if (backetDto.BacketItems == null || backetDto.BacketItems.Count == 0) return false;
-            backetDto.BacketItems.ForEach(item => {
+            backetDto.BacketItems.ForEach(item =>
+            {
                 backet.AddBacketItem(item.ProductId, item.ProductName, item.Price);
             });
             Add(backet);
+            backet.AddDomainEvent(new BacketCreatedEvent() { BacketId = backet.Id });
             await WriteStateAsync();
             return true;
         }
 
-        public async Task<bool> AddBacketItem(string productId,string productName,long price)
+        public async Task<bool> AddBacketItem(string productId, string productName, long price)
         {
             if (State == null) return false;
 
diff --git a/src/Pole.Core/Processor/PendingMessageRetryProcessor.cs b/src/Pole.Core/Processor/PendingMessageRetryProcessor.cs
index 2fefae9..c71c71c 100644
--- a/src/Pole.Core/Processor/PendingMessageRetryProcessor.cs
+++ b/src/Pole.Core/Processor/PendingMessageRetryProcessor.cs
@@ -63,7 +63,7 @@ namespace Pole.Core.Processor
             foreach (var pendingMessage in pendingMessages)
             {
                 var eventType = eventTypeFinder.FindType(pendingMessage.Name);
-                var eventContentBytes = serializer.SerializeToUtf8Bytes(pendingMessage, eventType);
+                var eventContentBytes = Encoding.UTF8.GetBytes(pendingMessage.Content);
                 var bytesTransport = new EventBytesTransport(pendingMessage.Name, pendingMessage.Id, eventContentBytes);
                 var bytes = bytesTransport.GetBytes();
                 if (pendingMessage.Retries > producerOptions.MaxFailedRetryCount)
diff --git a/src/Pole.Core/UnitOfWork/UnitOfWork.cs b/src/Pole.Core/UnitOfWork/UnitOfWork.cs
index ca19828..07a6db2 100644
--- a/src/Pole.Core/UnitOfWork/UnitOfWork.cs
+++ b/src/Pole.Core/UnitOfWork/UnitOfWork.cs
@@ -42,7 +42,7 @@ namespace Pole.Core.UnitOfWork
             bufferedEvents.ForEach(async @event =>
             {
                 var eventType = eventTypeFinder.FindType(@event.Name);
-                var eventContentBytes = serializer.SerializeToUtf8Bytes(@event, eventType);
+                var eventContentBytes = Encoding.UTF8.GetBytes(@event.Content);
                 var bytesTransport = new EventBytesTransport(@event.Name, @event.Id, eventContentBytes);
                 var bytes = bytesTransport.GetBytes();
                 var producer = await producerContainer.GetProducer(eventType);