DeepSeekSDK-NET

DeepSeek API SDK specifically for .NET developers

中文文档

🚀 Features

• List models
• Dialogue completion
• Dialog completion (streaming processing)

Usage Requirements

Please go to official website, register and apply for DeepSeek's ApiKey

Supported .NET version: .NET8

Tip

Free to fork the repository to support other versions

Usage

Instantiate DeepSeekClient

Two methods are provided for instantiation:

public DeepSeekClient(string apiKey);
public DeepSeekClient(HttpClient http, string apiKey);

The first type only requires providing the 'apiKey' to create an instance;

The second method provides a HttpClient parameter, which is suitable for maintaining the HttpClient through the HttpClientFactory and then instance it.

Calling method

Three asynchronous methods are provided:

Task<ModelResponse?> ListModelsAsync(CancellationToken cancellationToken);
Task<ChatResponse?> ChatAsync(ChatRequest request, CancellationToken cancellationToken);
Task<IAsyncEnumerable<Choice>?> ChatStreamAsync(ChatRequest request, CancellationToken cancellationToken)

List Models Sample

// Create an instance using the apiKey
var client = new DeepSeekClient(apiKey);

var modelResponse = await client.ListModelsAsync(new CancellationToken());
if (modelResponse is null)
{
    Console.WriteLine(client.ErrorMsg);
    return;
}
foreach (var model in modelResponse.Data)
{
    Console.WriteLine(model);
}

Chat Examples

// Create an instance using the apiKey
var client = new DeepSeekClient(apiKey);
// Construct the request body
var request = new ChatRequest
{
    Messages = [
        Message.NewSystemMessage("You are a language translator"),
        Message.NewUserMessage("Please translate 'They are scared! ' into English!")
    ],
    // Specify the model
    Model = Constant.Model.ChatModel
};

var chatResponse = await client.ChatAsync(request, new CancellationToken());
if (chatResponse is null)
{
    Console.WriteLine(client.ErrorMsg);
}
Console.WriteLine(chatResponse?.Choices.First().Message?.Content);

Chat Examples (Stream)

// Create an instance using the apiKey
var client = new DeepSeekClient(apiKey);
// Construct the request body
var request = new ChatRequest
{
    Messages = [
        Message.NewSystemMessage("You are a language translator"),
        Message.NewUserMessage("Please translate 'They are scared! ' into English!")
    ],
    // Specify the model
    Model = Constant.Model.ChatModel
};

var choices = await client.ChatStreamAsync(request, new CancellationToken());
if (choices is null)
{
    Console.WriteLine(client.ErrorMsg);
    return;
}
await foreach (var choice in choices)
{
    Console.Write(choice.Delta?.Content);
}
Console.WriteLine();

Tip

You can also refer to the usage example in this repository