Semantic Kernel/C#:接入智谱AI的两种方式

Semantie Kernel中对话请求默认是发送到OpenAI去的:

image-20240820135810583

其他与OpenAI对话请求接口兼任的模型平台,一般只需要修改host即可,如下所示:

 default:
     uriBuilder = new UriBuilder(request.RequestUri)
     {
         // 这里是你要修改的 URL
         Scheme = "https",
         Host = host,
         Path = "v1/chat/completions",
     };
     request.RequestUri = uriBuilder.Uri;
     break;

但是智谱AI的对话接口地址如下:

image-20240820140509016

在python中这样就可以用,但SemanticKernel中好像还没有base_url的设置。

有两种方式可以实现。

一种是想和之前其他模型用相同的方式,把智普平台作为一种特殊的方式处理。

在appsettings.json中添加一个Platform字段,请求接口完全兼容OpenAI的可以不写:

image-20240820141319013

创建Kernel是这样的:

 var builder = Kernel.CreateBuilder()
 .AddOpenAIChatCompletion(
    modelId: OpenAIOption.ChatModel,
    apiKey: OpenAIOption.Key,
    httpClient: new HttpClient(handler));
_kernel = builder.Build();

然后在OpenAIHttpClientHandler为智谱平台做一下不同的处理:

public class OpenAIHttpClientHandler : HttpClientHandler
{
    protected override async Task<HttpResponseMessage> SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
    {
        UriBuilder uriBuilder;
        string url = OpenAIOption.Endpoint;
        string platform = OpenAIOption.Platform;
        Uri uri = new Uri(url);
        string host = uri.Host;
        switch (request.RequestUri?.LocalPath)
        {
            case "/v1/chat/completions":
                switch(platform)
                {
                    case "ZhiPu":
                        uriBuilder = new UriBuilder(request.RequestUri)
                        {
                            // 这里是你要修改的 URL
                            Scheme = "https",
                            Host = host,
                            Path = "api/paas/v4/chat/completions",
                        };
                        request.RequestUri = uriBuilder.Uri;
                        break;
                    default:
                        uriBuilder = new UriBuilder(request.RequestUri)
                        {
                            // 这里是你要修改的 URL
                            Scheme = "https",
                            Host = host,
                            Path = "v1/chat/completions",
                        };
                        request.RequestUri = uriBuilder.Uri;
                        break;
                }
                break;
        }
    
        HttpResponseMessage response = await base.SendAsync(request, cancellationToken);
      
        return response;
    }
}

尝试是否成功:

image-20240820141544371

另一种方式更加简单,只需要在appsettings.json中这样写:

image-20240820141816259

使用这种方式创建Kernel即可:

image-20240820141925142

尝试是否成功:

image-20240820142138323

在AvaloniaChat中为了和其他平台保持统一的使用方式,我选择第一种方式。

OpenAIHttpClientHandler可以在此处查看:https://github.com/Ming-jiayou/AvaloniaChat/blob/main/src/AvaloniaChat/Model/OpenAIHttpClientHandler.cs

创建Kernel的两种方式可以在此处查看:https://github.com/Ming-jiayou/AvaloniaChat/blob/main/src/AvaloniaChat/ViewModels/MainViewModel.cs

posted @ 2024-08-21 09:16  mingupupup  阅读(190)  评论(0编辑  收藏  举报