diff --git a/Example.Backend/Printer.cs b/Example.Backend/Printer.cs
index eba0d19..87958c9 100644
--- a/Example.Backend/Printer.cs
+++ b/Example.Backend/Printer.cs
@@ -12,6 +12,7 @@ namespace Example.Backend
 
         public void OnPrintExternal(IPage p0, RequestContext ro)
         {
+            OnPrint?.Invoke(p0, ro);
         }
 
         public double Resource { get; set; } = 100d;
@@ -27,7 +28,7 @@ namespace Example.Backend
             // throw new Exception("The method or operation is not implemented.");
             var page = new Page { Text = text };
             Console.WriteLine($"Request id : :{context.RequestId}");
-            OnPrint?.Invoke(page, new RequestContext(Guid.NewGuid(), 132));
+            OnPrint?.Invoke(page, context);
             Resource /= 1.5;
             return page;
         }
diff --git a/mROA.CodegenTools/mROA.CodegenTools.csproj b/mROA.CodegenTools/mROA.CodegenTools.csproj
new file mode 100644
index 0000000..d2a210c
--- /dev/null
+++ b/mROA.CodegenTools/mROA.CodegenTools.csproj
@@ -0,0 +1,7 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+    <PropertyGroup>
+        <TargetFramework>netstandard2.0</TargetFramework>
+    </PropertyGroup>
+
+</Project>
diff --git a/mROA.sln b/mROA.sln
index 1cfa5fa..6ca35dc 100644
--- a/mROA.sln
+++ b/mROA.sln
@@ -31,6 +31,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Example.Events.Backend", "E
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Example.Events.Client", "Example.Events.Client\Example.Events.Client.csproj", "{98451C0E-E179-4F5F-9F1A-8B353EDE2EBC}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "mROA.CodegenTools", "mROA.CodegenTools\mROA.CodegenTools.csproj", "{2A2821B7-E5C5-443A-9801-9622493594A0}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -81,6 +83,10 @@ Global
 		{98451C0E-E179-4F5F-9F1A-8B353EDE2EBC}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{98451C0E-E179-4F5F-9F1A-8B353EDE2EBC}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{98451C0E-E179-4F5F-9F1A-8B353EDE2EBC}.Release|Any CPU.Build.0 = Release|Any CPU
+		{2A2821B7-E5C5-443A-9801-9622493594A0}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{2A2821B7-E5C5-443A-9801-9622493594A0}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{2A2821B7-E5C5-443A-9801-9622493594A0}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{2A2821B7-E5C5-443A-9801-9622493594A0}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE