工具源码：https://github.com/lishuangquan1987/XFYun.SparkChat
工具效果截图：
支持流式输出:
其中ApiKey/ApiSecret/AppId需要自己到讯飞星火大模型官网去注册账号申请，免费的。
申请地址：https://xinghuo.xfyun.cn/
注册之后，在如下的服务管理里面即可看到自己的ApiKey/ApiSecret/AppId
拿到了那三个东西之后填入就可以进行聊天啦。
核心代码C#如下:
namespace XFYun.SparkChat.SDK
{
public class SparkWebSDK
{
private string _appId;
private string _apiSecret;
private string _apiKey;
private SparkVersions _version;
private ClientWebSocket _webSocketClient;
public SparkWebSDK()
{
}
public void Setup(string appId, string apiSecret, string apiKey, SparkVersions version = SparkVersions.V3_0)
{
this._apiKey = apiKey;
this._apiSecret = apiSecret;
this._appId = appId;
this._version = version;
}
private string GetAuthUrl(string baseUrl, string apiSecret, string apiKey)
{
string date = DateTime.UtcNow.ToString("r");
Uri uri = new Uri(baseUrl);
var str = $"host: {
uri.Host}\ndate: {
date}\nGET {
uri.LocalPath} HTTP/1.1";
//使用apisecret,HMACSHA256算法加密str
var sha256Bytes = new HMACSHA256(Encoding.UTF8.GetBytes(apiSecret)).ComputeHash(Encoding.UTF8.GetBytes(str));
var sha256Str = Convert.ToBase64String(sha256Bytes);
var authorization = $"api_key=\"{
apiKey}\",algorithm=\"hmac-sha256\",headers=\"host date request-line\",signature=\"{
sha256Str}\"";
//date要做url处理
date = Uri.EscapeDataString(date);
string newUrl = $"ws://{
uri.Host}{
uri.LocalPath}?authorization={
Convert.ToBase64String(Encoding.UTF8.GetBytes(authorization))}&date={
date}&host={
uri.Host}";
return newUrl;
}
/// <summary>
/// 询问问题，流式调用response
/// 返回结果表示调用成功还是失败，如果调用失败，则返回失败原因
/// </summary>
/// <param name="question"></param>
/// <param name="response"></param>
/// <returns></returns>
public async Task<(bool, string)> Ask(List<string> questions, CancellationToken token, Action<List<string>> responseHandler)
{
try
{
string url = "";
string domain = "";
switch (this._version)
{
case SparkVersions.V1_5:
url = "ws://spark-api.xf-yun.com/v1.1/chat";
domain = "general";
break;
case SparkVersions.V2_0:
url = "ws://spark-api.xf-yun.com/v2.1/chat";
domain = "generalv2";
break;
case SparkVersions.V3_0:
url = "ws://spark-api.xf-yun.com/v3.1/chat";
domain = "generalv3";
break;
}
var newUrl = GetAuthUrl(url, this._apiSecret, this._apiKey);
this._webSocketClient = new ClientWebSocket();
await this._webSocketClient.ConnectAsync(new Uri(newUrl), token);
var request = new JsonRequest()
{
Header = new RequestHeader()
{
AppId = this._appId,
Uid = "123"
},
Parameter = new RequestParameter()
{
Chat = new RequestChat()
{
Domain = domain,
Temperature = 0.5,
MaxTokens = 1024,
}
},
Payload = new RequestPayload()
{
Message = new RequestMessage()
{
Text = questions.Select(x => new ReuqestContent()
{
Role = "user",
Content = x
}).ToList()
}
}
};
var jsonStr = Newtonsoft.Json.JsonConvert.SerializeObject(request);
await this._webSocketClient.SendAsync(new ArraySegment<byte>(Encoding.UTF8.GetBytes(jsonStr)), WebSocketMessageType.Text, true, token);
var recvBuffer = new byte[1024];
while (true)
{
WebSocketReceiveResult result = await this._webSocketClient.ReceiveAsync(new ArraySegment<byte>(recvBuffer), token);
if (result.CloseStatus.HasValue) return (true, "");
if (result.MessageType == WebSocketMessageType.Text)
{
string recvMsg = Encoding.UTF8.GetString(recvBuffer, 0, result.Count);
var response = Newtonsoft.Json.JsonConvert.DeserializeObject<JsonResponse>(recvMsg);
if (response.Header.Code != 0)
{
return (false, response.Header.Message);
}
if (response.Payload.Choices.Status == 2)//最后一个消息
{
responseHandler?.Invoke(response.Payload.Choices.Text.Select(x => x.Content).ToList());
return (true, "调用成功！");
}
responseHandler?.Invoke(response.Payload.Choices.Text.Select(x => x.Content).ToList());
}
else if (result.MessageType == WebSocketMessageType.Close)
{
return (false, result.CloseStatusDescription);
}
}
}
catch (Exception e)
{
return (false, e.Message);
}
finally
{
await this._webSocketClient?.CloseAsync( WebSocketCloseStatus.NormalClosure,"client raise close request",token);
}
}
public async void Close()
{
if (_webSocketClient != null)
{
await _webSocketClient.CloseAsync(WebSocketCloseStatus.NormalClosure, "正常关闭", new CancellationToken());
}
}
}
public enum SparkVersions
{
V1_5,
V2_0,
V3_0
}
}