Ollama

Ollama SDK for .NET

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Ollama SDK for .NET is a fully generated C# SDK based on OpenAPI specification using OpenApiGenerator. It supports automatic releases of new preview versions, source generator for defining tools natively through C# interfaces, and all modern .NET features. The SDK provides support for all Ollama API endpoints including chats, embeddings, listing models, pulling and creating new models, and more. It also offers tools for interacting with weather data and providing weather-related information to users.

README:

Ollama SDK for .NET 🦙

Features 🔥

Fully generated C# SDK based on OpenAPI specification using OpenApiGenerator
Automatic releases of new preview versions if there was an update to the OpenAPI specification
Source generator to define tools natively through C# interfaces
All modern .NET features - nullability, trimming, NativeAOT, etc.
Support .Net Framework/.Net Standard 2.0
Support for all Ollama API endpoints including chats, embeddings, listing models, pulling and creating new models, and more.

Usage

Initializing

using var ollama = new OllamaApiClient();
// or if you have a custom server
// using var ollama = new OllamaApiClient(baseUri: new Uri("http://10.10.5.85:11434/api")

var models = await ollama.Models.ListModelsAsync();

// Pulling a model and reporting progress
await foreach (var response in ollama.PullModelAsync("all-minilm", stream: true))
{
    Console.WriteLine($"{response.Status}. Progress: {response.Completed}/{response.Total}");
}
// or just pull the model and wait for it to finish
await ollama.Models.PullModelAsync("all-minilm").EnsureSuccessAsync();

// Generating an embedding
var embedding = await ollama.Embeddings.GenerateEmbeddingAsync(
    model: "all-minilm",
    prompt: "hello");

// Streaming a completion directly into the console
// keep reusing the context to keep the chat topic going
IList<long>? context = null;
var enumerable = ollama.Completions.GenerateCompletionAsync("llama3.2", "answer 5 random words");
await foreach (var response in enumerable)
{
    Console.WriteLine($"> {response.Response}");
    
    context = response.Context;
}

var lastResponse = await ollama.Completions.GenerateCompletionAsync("llama3.2", "answer 123", stream: false, context: context).WaitAsync();
Console.WriteLine(lastResponse.Response);

var chat = ollama.Chat("mistral");
while (true)
{
    var message = await chat.SendAsync("answer 123");
    
    Console.WriteLine(message.Content);
    
    var newMessage = Console.ReadLine();
    await chat.Send(newMessage);
}

Tools

using var ollama = new OllamaApiClient();
var chat = ollama.Chat(
    model: "llama3.2",
    systemMessage: "You are a helpful weather assistant.",
    autoCallTools: true);

var service = new WeatherService();
chat.AddToolService(service.AsTools().AsOllamaTools(), service.AsCalls());

try
{
    _ = await chat.SendAsync("What is the current temperature in Dubai, UAE in Celsius?");
}
finally
{
    Console.WriteLine(chat.PrintMessages());
}

> System:
You are a helpful weather assistant.
> User:
What is the current temperature in Dubai, UAE in Celsius?
> Assistant:
Tool calls:
GetCurrentWeather({"location":"Dubai, UAE","unit":"celsius"})
> Tool:
{"location":"Dubai, UAE","temperature":22,"unit":"celsius","description":"Sunny"}
> Assistant:
The current temperature in Dubai, UAE is 22°C.

using CSharpToJsonSchema;

public enum Unit
{
    Celsius,
    Fahrenheit,
}

public class Weather
{
    public string Location { get; set; } = string.Empty;
    public double Temperature { get; set; }
    public Unit Unit { get; set; }
    public string Description { get; set; } = string.Empty;
}

[GenerateJsonSchema]
public interface IWeatherFunctions
{
    [Description("Get the current weather in a given location")]
    public Task<Weather> GetCurrentWeatherAsync(
        [Description("The city and state, e.g. San Francisco, CA")] string location,
        Unit unit = Unit.Celsius,
        CancellationToken cancellationToken = default);
}

public class WeatherService : IWeatherFunctions
{
    public Task<Weather> GetCurrentWeatherAsync(string location, Unit unit = Unit.Celsius, CancellationToken cancellationToken = default)
    {
        return Task.FromResult(new Weather
        {
            Location = location,
            Temperature = 22.0,
            Unit = unit,
            Description = "Sunny",
        });
    }
}

Credits

Icon and name were reused from the amazing Ollama project.
The project was forked from this repository, after which automatic code generation was applied based on this OpenAPI specification (in the future it will be replaced by the official one, if one appears)

Support

Priority place for bugs: https://github.com/tryAGI/Ollama/issues
Priority place for ideas and general questions: https://github.com/tryAGI/Ollama/discussions
Discord: https://discord.gg/Ca2xhfBf3v

Acknowledgments

This project is supported by JetBrains through the Open Source Support Program.

This project is supported by CodeRabbit through the Open Source Support Program.

For Tasks:

Click tags to check more tools for each tasks

generate embedding stream completion chat interaction get current weather send message

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