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examples/302-dotnet-sk-km-chat/302-dotnet-sk-km-chat.csproj
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <OutputType>Exe</OutputType> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <ImplicitUsings>enable</ImplicitUsings> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="Microsoft.SemanticKernel" /> | ||
| </ItemGroup> | ||
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| <ItemGroup> | ||
| <ProjectReference Include="..\..\service\Core\Core.csproj" /> | ||
| </ItemGroup> | ||
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| </Project> |
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| // Copyright (c) Microsoft. All rights reserved. | ||
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| using System.Security.Cryptography; | ||
| using System.Text; | ||
| using Microsoft.KernelMemory; | ||
| using Microsoft.KernelMemory.DocumentStorage.DevTools; | ||
| using Microsoft.KernelMemory.MemoryStorage.DevTools; | ||
| using Microsoft.SemanticKernel; | ||
| using Microsoft.SemanticKernel.ChatCompletion; | ||
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| internal sealed class Program | ||
| { | ||
| private static readonly List<string> s_documentation = | ||
| [ | ||
| "https://raw.githubusercontent.com/microsoft/kernel-memory/main/README.md", | ||
| "https://microsoft.github.io/kernel-memory/quickstart", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/configuration", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/start-service", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/python", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/csharp", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/java", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/javascript", | ||
| "https://microsoft.github.io/kernel-memory/quickstart/bash", | ||
| "https://microsoft.github.io/kernel-memory/service", | ||
| "https://microsoft.github.io/kernel-memory/service/architecture", | ||
| "https://microsoft.github.io/kernel-memory/serverless", | ||
| "https://microsoft.github.io/kernel-memory/security/filters", | ||
| "https://microsoft.github.io/kernel-memory/how-to/custom-partitioning", | ||
| "https://microsoft.github.io/kernel-memory/concepts/indexes", | ||
| "https://microsoft.github.io/kernel-memory/concepts/document", | ||
| "https://microsoft.github.io/kernel-memory/concepts/memory", | ||
| "https://microsoft.github.io/kernel-memory/concepts/tag", | ||
| "https://microsoft.github.io/kernel-memory/concepts/llm", | ||
| "https://microsoft.github.io/kernel-memory/concepts/embedding", | ||
| "https://microsoft.github.io/kernel-memory/concepts/cosine-similarity", | ||
| "https://microsoft.github.io/kernel-memory/faq", | ||
| "https://raw.githubusercontent.com/microsoft/semantic-kernel/main/README.md", | ||
| "https://raw.githubusercontent.com/microsoft/semantic-kernel/main/dotnet/README.md", | ||
| "https://raw.githubusercontent.com/microsoft/semantic-kernel/main/python/README.md", | ||
| "https://raw.githubusercontent.com/microsoft/semantic-kernel/main/java/README.md", | ||
| "https://learn.microsoft.com/en-us/semantic-kernel/overview/", | ||
| "https://learn.microsoft.com/en-us/semantic-kernel/get-started/quick-start-guide", | ||
| "https://learn.microsoft.com/en-us/semantic-kernel/agents/", | ||
| ]; | ||
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| internal static async Task Main() | ||
| { | ||
| var openAIApiKey = Environment.GetEnvironmentVariable("OPENAI_APIKEY") ?? throw new ConfigurationException("OPENAI_APIKEY env var not found"); | ||
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| Kernel kernel = Kernel.CreateBuilder() | ||
| .AddOpenAIChatCompletion(modelId: "gpt-4", apiKey: openAIApiKey) | ||
| .Build(); | ||
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| // Memory instance with persistent storage on disk | ||
| IKernelMemory memory = new KernelMemoryBuilder() | ||
| .WithOpenAIDefaults(openAIApiKey) | ||
| .WithSimpleVectorDb(SimpleVectorDbConfig.Persistent) | ||
| .WithSimpleFileStorage(SimpleFileStorageConfig.Persistent) | ||
| .Build<MemoryServerless>(); | ||
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| // Memorize some data | ||
| Console.WriteLine("# Saving documentation into kernel memory..."); | ||
| await MemorizeDocuments(memory, s_documentation); | ||
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| // Infinite chat loop | ||
| Console.WriteLine("# Starting chat..."); | ||
| var chatService = kernel.GetRequiredService<IChatCompletionService>(); | ||
| await ChatLoop(chatService, memory); | ||
| } | ||
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| private static async Task ChatLoop(IChatCompletionService chatService, IKernelMemory memory) | ||
| { | ||
| // Chat setup | ||
| var systemPrompt = """ | ||
| You are a helpful assistant replying to user questions using information from your memory. | ||
| The topic of the conversation is Kernel Memory (KM) and Semantic Kernel (SK). | ||
| Sometimes you don't have relevant memories so you reply saying you don't know, don't have the information. | ||
| """; | ||
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| var chatHistory = new ChatHistory(systemPrompt); | ||
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| // Start the chat | ||
| var assistantMessage = "Hello, how can I help?"; | ||
| Console.WriteLine($"Copilot> {assistantMessage}\n"); | ||
| chatHistory.AddAssistantMessage(assistantMessage); | ||
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| // Infinite chat loop | ||
| var reply = new StringBuilder(); | ||
| while (true) | ||
| { | ||
| // Get user message (retry if the user enters an empty string) | ||
| Console.Write("You> "); | ||
| var userMessage = Console.ReadLine()?.Trim(); | ||
| if (string.IsNullOrWhiteSpace(userMessage)) { continue; } | ||
| else { chatHistory.AddUserMessage(userMessage); } | ||
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| // Recall relevant information from memory | ||
| MemoryAnswer recall = await memory.AskAsync(userMessage); | ||
| Console.WriteLine("--- recall from memory ---"); | ||
| Console.WriteLine(recall.Result.Trim()); | ||
| Console.WriteLine("--------------------------"); | ||
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| // Inject the memory recall in the initial system message | ||
| chatHistory[0].Content = $"{systemPrompt}\n\nLong term memory:\n{recall.Result}"; | ||
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| // Generate the next chat message, stream the response | ||
| Console.Write("\nCopilot> "); | ||
| reply.Clear(); | ||
| await foreach (StreamingChatMessageContent stream in chatService.GetStreamingChatMessageContentsAsync(chatHistory)) | ||
| { | ||
| Console.Write(stream.Content); | ||
| reply.Append(stream.Content); | ||
| } | ||
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| chatHistory.AddAssistantMessage(reply.ToString()); | ||
| Console.WriteLine("\n"); | ||
| } | ||
| } | ||
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| private static async Task MemorizeDocuments(IKernelMemory memory, List<string> pages) | ||
| { | ||
| await memory.ImportTextAsync("We can talk about Semantic Kernel and Kernel Memory, you can ask any questions, I will try to reply using information from KM public documentation in Github", documentId: "help"); | ||
| foreach (var url in pages) | ||
| { | ||
| var id = GetUrlId(url); | ||
| // Check if the page is already in memory, to avoid importing twice | ||
| if (!await memory.IsDocumentReadyAsync(id)) | ||
| { | ||
| await memory.ImportWebPageAsync(url, documentId: GetUrlId(url)); | ||
| } | ||
| } | ||
| } | ||
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| private static string GetUrlId(string url) | ||
| { | ||
| return Convert.ToHexString(SHA256.HashData(Encoding.UTF8.GetBytes(url))).ToUpperInvariant(); | ||
| } | ||
| } |
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| launchSettings.json | ||
| !launchSettings.json.example |
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examples/302-dotnet-sk-km-chat/Properties/launchSettings.json.example
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| { | ||
| "profiles": { | ||
| "example302": { | ||
| "commandName": "Project", | ||
| "launchBrowser": false, | ||
| "environmentVariables": { | ||
| "ASPNETCORE_ENVIRONMENT": "Development", | ||
| "OPENAI_APIKEY": "" | ||
| } | ||
| } | ||
| } | ||
| } |