Refactor MCP SSE server integration and update package references

Author: jongalloway

04-PracticalSamples/src/src/McpSample.AspNetCoreSseServer/McpEndpointRouteBuilderExtensions.cs

@@ -9,6 +9,7 @@
 
   <ItemGroup>
     <PackageReference Include="ModelContextProtocol" Version="0.3.0-preview.3" />
+    <PackageReference Include="ModelContextProtocol.Core" Version="0.3.0-preview.3" />
   </ItemGroup>
 
   <ItemGroup>

04-PracticalSamples/src/src/McpSample.AspNetCoreSseServer/McpSample.AspNetCoreSseServer.csproj

@@ -17,6 +17,5 @@
 
 // map endpoints
 app.MapGet("/", () => $"Hello World! {DateTime.Now}");
-app.MapMcpSse();
 
 app.Run();

04-PracticalSamples/src/src/McpSample.AspNetCoreSseServer/Program.cs

@@ -8,3 +8,4 @@
 @using Microsoft.JSInterop
 @using McpSample.BlazorChat
 @using McpSample.BlazorChat.Components
+@using Microsoft.Extensions.AI

04-PracticalSamples/src/src/McpSample.Chat/Components/_Imports.razor

@@ -11,6 +11,7 @@
 	<ItemGroup>
 		<PackageReference Include="Azure.AI.OpenAI" Version="2.2.0-beta.5" />
 		<PackageReference Include="Azure.Identity" Version="1.14.2" />
+		<PackageReference Include="Microsoft.Extensions.AI" Version="9.5.0" />
 		<PackageReference Include="Microsoft.Extensions.AI.AzureAIInference" Version="9.5.0-preview.1.25265.7" />
 		<PackageReference Include="Microsoft.Extensions.AI.Ollama" Version="9.5.0-preview.1.25265.7" />
 		<PackageReference Include="ModelContextProtocol" Version="0.3.0-preview.3" />

04-PracticalSamples/src/src/McpSample.Chat/McpSample.BlazorChat.csproj

@@ -1,8 +1,7 @@
+using McpSample.BlazorChat;
 using McpSample.BlazorChat.Components;
 using Microsoft.Extensions.AI;
 using ModelContextProtocol.Client;
-using ModelContextProtocol.Configuration;
-using ModelContextProtocol.Protocol.Transport;
 
 var builder = WebApplication.CreateBuilder(args);
 
@@ -28,23 +27,15 @@
 // add MCP client
 builder.Services.AddSingleton<IMcpClient>(sp =>
 {
-    McpClientOptions mcpClientOptions = new() 
-    { ClientInfo = new() { Name = "AspNetCoreSseClient", Version = "1.0.0" } };
-
-    HttpClient httpClient = new()
-    {
-        BaseAddress = new("https://localhost:7133/sse")  //"https +http://aspnetsseserver" + "/sse")
-    }; 
-
-    McpServerConfig mcpServerConfig = new()
-    {
-        Id = "AspNetCoreSse",
-        Name = "AspNetCoreSse",
-        TransportType = TransportTypes.Sse,
-        Location = httpClient.BaseAddress.ToString(),
-    };
-
-    var mcpClient = McpClientFactory.CreateAsync(mcpServerConfig, mcpClientOptions).GetAwaiter().GetResult();
+    var clientTransport = new SseClientTransport(
+        new()
+        {
+            Name = "AspNetCoreSse Server",
+            Endpoint = new Uri("https://localhost:7133"), // Remove /sse endpoint since it's deprecated
+            TransportMode = HttpTransportMode.StreamableHttp // Use new Streamable HTTP transport
+        });
+
+    var mcpClient = McpClientFactory.CreateAsync(clientTransport).GetAwaiter().GetResult();
     return mcpClient;
 });