Ollama系列06：C#使用OllamaSharp集成Ollama服务

// set up the client
var uri = new Uri("http://localhost:11434");
var ollama = new OllamaApiClient(uri);

// list models
var models = await ollama.ListLocalModelsAsync();
if (models != null && models.Any())
{
    Console.WriteLine("Models: ");
    foreach (var model in models)
    {
        Console.WriteLine("  " + model.Name);
    }
}

// chat with ollama
var chat = new Chat(ollama);
Console.WriteLine();
Console.WriteLine($"Chat with {ollama.SelectedModel}");

while (true)
{
    var currentMessageCount = chat.Messages.Count;

    Console.Write(">>");
    var message = Console.ReadLine();
    await foreach (var answerToken in chat.SendAsync(message, Tools))
        Console.Write(answerToken);

    Console.WriteLine();

    // find the latest message from the assistant and possible tools
    var newMessages = chat.Messages.Skip(currentMessageCount - 1);
    foreach (var newMessage in newMessages)
    {
        if (newMessage.ToolCalls?.Any() ?? false)
        {
            Console.WriteLine("\nTools used:");

            foreach (var function in newMessage.ToolCalls.Where(t => t.Function != null).Select(t => t.Function))
            {
                Console.WriteLine($"  - {function!.Name}");
                Console.WriteLine($"    - parameters");

                if (function?.Arguments is not null)
                {
                    foreach (var argument in function.Arguments)
                        Console.WriteLine($"      - {argument.Key}: {argument.Value}");
                }
            }
        }

        if (newMessage.Role.GetValueOrDefault() == OllamaSharp.Models.Chat.ChatRole.Tool)
            Console.WriteLine($"    - results: \"{newMessage.Content}\"");
    }
}

/// <summary>
/// Gets the current datetime
/// </summary>
/// <returns>The current datetime</returns>
[OllamaTool]
public static string GetDateTime() => $"{DateTime.Now: yyyy-MM-dd HH:mm:ss ddd}";

public static List<object> Tools { get; } = [
    new GetDateTimeTool(),
];

await chat.SendAsync(message, Tools)