.Net: Add MistralAI to the AppInsights sample (#6301)

### Motivation and Context

<!-- Thank you for your contribution to the semantic-kernel repo!
Please help reviewers and future users, providing the following
information:
  1. Why is this change required?
  2. What problem does it solve?
  3. What scenario does it contribute to?
  4. If it fixes an open issue, please link to the issue here.
-->

### Description

<!-- Describe your changes, the overall approach, the underlying design.
These notes will help understanding how your code works. Thanks! -->

### Contribution Checklist

<!-- Before submitting this PR, please make sure: -->

- [ ] The code builds clean without any errors or warnings
- [ ] The PR follows the [SK Contribution
Guidelines](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md)
and the [pre-submission formatting
script](https://github.com/microsoft/semantic-kernel/blob/main/CONTRIBUTING.md#development-scripts)
raises no violations
- [ ] All unit tests pass, and I have added new tests where possible
- [ ] I didn't break anyone 😄

dotnet/samples/Demos/TelemetryWithAppInsights/Program.cs

@@ -13,6 +13,7 @@
 using Microsoft.SemanticKernel;
 using Microsoft.SemanticKernel.Connectors.Google;
 using Microsoft.SemanticKernel.Connectors.HuggingFace;
+using Microsoft.SemanticKernel.Connectors.MistralAI;
 using Microsoft.SemanticKernel.Connectors.OpenAI;
 using Microsoft.SemanticKernel.Services;
 using OpenTelemetry;
@@ -84,6 +85,8 @@ public static async Task Main()
             await RunGoogleAIChatAsync(kernel);
             Console.WriteLine();
             await RunHuggingFaceChatAsync(kernel);
+            Console.WriteLine();
+            await RunMistralAIChatAsync(kernel);
         }
 
         Console.WriteLine();
@@ -115,6 +118,7 @@ public static async Task Main()
     private const string AzureOpenAIServiceKey = "AzureOpenAI";
     private const string GoogleAIGeminiServiceKey = "GoogleAIGemini";
     private const string HuggingFaceServiceKey = "HuggingFace";
+    private const string MistralAIServiceKey = "MistralAI";
 
     #region chat completion
     private static async Task RunAzureOpenAIChatAsync(Kernel kernel)
@@ -170,6 +174,24 @@ private static async Task RunHuggingFaceChatAsync(Kernel kernel)
         }
     }
 
+    private static async Task RunMistralAIChatAsync(Kernel kernel)
+    {
+        Console.WriteLine("============= MistralAI Chat Completion =============");
+
+        using var activity = s_activitySource.StartActivity(MistralAIServiceKey);
+        SetTargetService(kernel, MistralAIServiceKey);
+
+        try
+        {
+            await RunChatAsync(kernel);
+        }
+        catch (Exception ex)
+        {
+            activity?.SetStatus(ActivityStatusCode.Error, ex.Message);
+            Console.WriteLine($"Error: {ex.Message}");
+        }
+    }
+
     private static async Task RunChatAsync(Kernel kernel)
     {
         // Using non-streaming to get the poem.
@@ -243,7 +265,12 @@ private static Kernel GetKernel(ILoggerFactory loggerFactory)
                 model: TestConfiguration.HuggingFace.ModelId,
                 endpoint: new Uri("https://api-inference.huggingface.co"),
                 apiKey: TestConfiguration.HuggingFace.ApiKey,
-                serviceId: HuggingFaceServiceKey);
+                serviceId: HuggingFaceServiceKey)
+            .AddMistralChatCompletion(
+                modelId: TestConfiguration.MistralAI.ChatModelId,
+                apiKey: TestConfiguration.MistralAI.ApiKey,
+                serviceId: MistralAIServiceKey
+            );
 
         builder.Services.AddSingleton<IAIServiceSelector>(new AIServiceSelector());
         builder.Plugins.AddFromPromptDirectory(Path.Combine(folder, "WriterPlugin"));
@@ -305,6 +332,11 @@ private sealed class AIServiceSelector : IAIServiceSelector
                         {
                             Temperature = 0,
                         },
+                        MistralAIServiceKey => new MistralAIPromptExecutionSettings()
+                        {
+                            Temperature = 0,
+                            ToolCallBehavior = MistralAIToolCallBehavior.AutoInvokeKernelFunctions
+                        },
                         _ => null,
                     };
 

dotnet/samples/Demos/TelemetryWithAppInsights/README.md

@@ -68,6 +68,9 @@ dotnet user-secrets set "GoogleAI:ApiKey" "..."
 dotnet user-secrets set "HuggingFace:ModelId" "..."
 dotnet user-secrets set "HuggingFace:ApiKey" "..."
 
+dotnet user-secrets set "MistralAI:ChatModelId" "mistral-large-latest"
+dotnet user-secrets set "MistralAI:ApiKey" "..."
+
 dotnet user-secrets set "ApplicationInsights:ConnectionString" "..."
 ```
 

dotnet/samples/Demos/TelemetryWithAppInsights/TelemetryWithAppInsights.csproj

@@ -18,10 +18,10 @@
   </ItemGroup>
 
   <ItemGroup>
+    <ProjectReference Include="..\..\..\src\Connectors\Connectors.MistralAI\Connectors.MistralAI.csproj" />
     <ProjectReference Include="..\..\..\src\Connectors\Connectors.OpenAI\Connectors.OpenAI.csproj" />
     <ProjectReference Include="..\..\..\src\Connectors\Connectors.Google\Connectors.Google.csproj" />
-    <ProjectReference
-      Include="..\..\..\src\Connectors\Connectors.HuggingFace\Connectors.HuggingFace.csproj" />
+    <ProjectReference Include="..\..\..\src\Connectors\Connectors.HuggingFace\Connectors.HuggingFace.csproj" />
     <ProjectReference Include="..\..\..\src\Planners\Planners.Handlebars\Planners.Handlebars.csproj" />
     <ProjectReference Include="..\..\..\src\SemanticKernel.Core\SemanticKernel.Core.csproj" />
     <ProjectReference Include="..\..\..\src\Plugins\Plugins.Core\Plugins.Core.csproj" />

dotnet/samples/Demos/TelemetryWithAppInsights/TestConfiguration.cs

@@ -28,6 +28,8 @@ public static void Initialize(IConfigurationRoot configRoot)
 
     public static HuggingFaceConfig HuggingFace => LoadSection<HuggingFaceConfig>();
 
+    public static MistralAIConfig MistralAI => LoadSection<MistralAIConfig>();
+
     private static T LoadSection<T>([CallerMemberName] string? caller = null)
     {
         if (s_instance is null)
@@ -78,5 +80,11 @@ public class HuggingFaceConfig
         public string EmbeddingModelId { get; set; }
     }
 
+    public class MistralAIConfig
+    {
+        public string ApiKey { get; set; }
+        public string ChatModelId { get; set; }
+    }
+
 #pragma warning restore CS8618 // Non-nullable field must contain a non-null value when exiting constructor.
 }