Added code samples for AI-Agents
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124
agents/gigachat_client.py
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124
agents/gigachat_client.py
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"""Клиент для работы с GigaChat API."""
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import json
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from typing import List, Optional
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import aiohttp
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from models.gigachat_types import GigaChatMessage, GigaChatRequest, GigaChatResponse
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from services.token_manager import TokenManager
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class GigaChatClient:
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"""Клиент для взаимодействия с GigaChat API."""
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def __init__(
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self,
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token_manager: TokenManager,
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base_url: Optional[str] = None,
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):
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self.token_manager = token_manager
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self.base_url = base_url or "https://gigachat.devices.sberbank.ru/api/v1"
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self._session: Optional[aiohttp.ClientSession] = None
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async def _get_session(self) -> aiohttp.ClientSession:
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"""Получить HTTP сессию (lazy initialization)."""
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if self._session is None or self._session.closed:
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self._session = aiohttp.ClientSession()
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return self._session
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async def chat(
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self,
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message: str,
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context: Optional[List[GigaChatMessage]] = None,
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model: str = "GigaChat-2",
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temperature: float = 0.7,
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max_tokens: int = 2000,
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) -> str:
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"""
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Отправить сообщение в GigaChat.
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Args:
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message: Текст сообщения
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context: История сообщений
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model: Модель GigaChat (GigaChat-2, GigaChat-2-Lite, GigaChat-2-Pro, GigaChat-2-Max)
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temperature: Температура генерации
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max_tokens: Максимальное количество токенов
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Returns:
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Ответ от модели
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"""
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messages = context or []
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messages.append(GigaChatMessage(role="user", content=message))
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request = GigaChatRequest(
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model=model,
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messages=messages,
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temperature=temperature,
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max_tokens=max_tokens,
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)
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response = await self._make_request(request)
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return response.choices[0].message.content
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async def chat_with_response(
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self,
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message: str,
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context: Optional[List[GigaChatMessage]] = None,
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model: str = "GigaChat-2",
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temperature: float = 0.7,
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max_tokens: int = 2000,
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) -> GigaChatResponse:
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"""
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Отправить сообщение и получить полный ответ.
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Args:
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message: Текст сообщения
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context: История сообщений
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model: Модель GigaChat
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temperature: Температура генерации
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max_tokens: Максимальное количество токенов
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Returns:
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Полный ответ от API
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"""
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messages = context or []
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messages.append(GigaChatMessage(role="user", content=message))
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request = GigaChatRequest(
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model=model,
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messages=messages,
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temperature=temperature,
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max_tokens=max_tokens,
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)
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return await self._make_request(request)
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async def _make_request(self, request: GigaChatRequest) -> GigaChatResponse:
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"""Выполнить запрос к API."""
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token = await self.token_manager.get_token()
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session = await self._get_session()
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headers = {
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"Authorization": f"Bearer {token}",
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"Content-Type": "application/json",
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}
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url = f"{self.base_url}/chat/completions"
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async with session.post(
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url,
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headers=headers,
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json=request.model_dump(exclude_none=True),
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) as response:
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if response.status != 200:
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error_text = await response.text()
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raise Exception(f"GigaChat API error: {response.status} - {error_text}")
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data = await response.json()
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return GigaChatResponse(**data)
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async def close(self):
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"""Закрыть HTTP сессию."""
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if self._session and not self._session.closed:
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await self._session.close()
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