Langchain-Chatchat

1
from fastchat.conversation import Conversation
2
from server.model_workers.base import *
3
from fastchat import conversation as conv
4
import sys
5
import json
6
from server.model_workers import SparkApi
7
import websockets
8
from server.utils import iter_over_async, asyncio
9
from typing import List, Dict
10

11

12
async def request(appid, api_key, api_secret, Spark_url, domain, question, temperature, max_token):
13
    wsParam = SparkApi.Ws_Param(appid, api_key, api_secret, Spark_url)
14
    wsUrl = wsParam.create_url()
15
    data = SparkApi.gen_params(appid, domain, question, temperature, max_token)
16
    async with websockets.connect(wsUrl) as ws:
17
        await ws.send(json.dumps(data, ensure_ascii=False))
18
        finish = False
19
        while not finish:
20
            chunk = await ws.recv()
21
            response = json.loads(chunk)
22
            if response.get("header", {}).get("status") == 2:
23
                finish = True
24
            if text := response.get("payload", {}).get("choices", {}).get("text"):
25
                yield text[0]["content"]
26

27

28
class XingHuoWorker(ApiModelWorker):
29
    def __init__(
30
            self,
31
            *,
32
            model_names: List[str] = ["xinghuo-api"],
33
            controller_addr: str = None,
34
            worker_addr: str = None,
35
            version: str = None,
36
            **kwargs,
37
    ):
38
        kwargs.update(model_names=model_names, controller_addr=controller_addr, worker_addr=worker_addr)
39
        kwargs.setdefault("context_len", 8000)
40
        super().__init__(**kwargs)
41
        self.version = version
42

43
    def do_chat(self, params: ApiChatParams) -> Dict:
44
        params.load_config(self.model_names[0])
45

46
        version_mapping = {
47
            "v1.5": {"domain": "general", "url": "ws://spark-api.xf-yun.com/v1.1/chat", "max_tokens": 4000},
48
            "v2.0": {"domain": "generalv2", "url": "ws://spark-api.xf-yun.com/v2.1/chat", "max_tokens": 8000},
49
            "v3.0": {"domain": "generalv3", "url": "ws://spark-api.xf-yun.com/v3.1/chat", "max_tokens": 8000},
50
            "v3.5": {"domain": "generalv3", "url": "ws://spark-api.xf-yun.com/v3.5/chat", "max_tokens": 16000},
51
        }
52

53
        def get_version_details(version_key):
54
            return version_mapping.get(version_key, {"domain": None, "url": None})
55

56
        details = get_version_details(params.version)
57
        domain = details["domain"]
58
        Spark_url = details["url"]
59
        text = ""
60
        try:
61
            loop = asyncio.get_event_loop()
62
        except:
63
            loop = asyncio.new_event_loop()
64
        params.max_tokens = min(details["max_tokens"], params.max_tokens or 0)
65
        for chunk in iter_over_async(
66
                request(params.APPID, params.api_key, params.APISecret, Spark_url, domain, params.messages,
67
                        params.temperature, params.max_tokens),
68
                loop=loop,
69
        ):
70
            if chunk:
71
                text += chunk
72
                yield {"error_code": 0, "text": text}
73

74
    def get_embeddings(self, params):
75
        print("embedding")
76
        print(params)
77

78
    def make_conv_template(self, conv_template: str = None, model_path: str = None) -> Conversation:
79
        return conv.Conversation(
80
            name=self.model_names[0],
81
            system_message="你是一个聪明的助手，请根据用户的提示来完成任务",
82
            messages=[],
83
            roles=["user", "assistant"],
84
            sep="\n### ",
85
            stop_str="###",
86
        )
87

88

89
if __name__ == "__main__":
90
    import uvicorn
91
    from server.utils import MakeFastAPIOffline
92
    from fastchat.serve.model_worker import app
93

94
    worker = XingHuoWorker(
95
        controller_addr="http://127.0.0.1:20001",
96
        worker_addr="http://127.0.0.1:21003",
97
    )
98
    sys.modules["fastchat.serve.model_worker"].worker = worker
99
    MakeFastAPIOffline(app)
100
    uvicorn.run(app, port=21003)
101