\u670d\u52a1<\/p>\n<\/td>\n
\u9762\u5411<\/p>\n<\/td>\n
\u529f\u80fd<\/p>\n<\/td>\n<\/tr>\n
AI \u5bf9\u8bdd\u670d\u52a1<\/p>\n<\/td>\n
\u7ec8\u7aef\u7528\u6237<\/p>\n<\/td>\n
\u5bf9\u63a5 DeepSeek \u5927\u6a21\u578b，\u652f\u6301\u591a\u8f6e\u5bf9\u8bdd\u3001\u4f1a\u8bdd\u7ba1\u7406<\/p>\n<\/td>\n<\/tr>\n
\u5b9e\u65f6\u4eea\u8868\u76d8<\/p>\n<\/td>\n
\u8fd0\u8425\/\u5f00\u53d1<\/p>\n<\/td>\n
\u5b9e\u65f6\u67e5\u770b\u7528\u6237\u6d3b\u8dc3\u5ea6\u3001Token \u6d88\u8017\u3001\u8d39\u7528\u7edf\u8ba1\u3001\u54cd\u5e94\u5ef6\u8fdf<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u4e24\u4e2a\u670d\u52a1\u7684\u6570\u636e\u6d41\u662f\u4e32\u8054\u7684：\u7528\u6237\u6bcf\u53d1\u4e00\u6761\u6d88\u606f，\u4eea\u8868\u76d8\u65e0\u9700\u5237\u65b0\u5c31\u80fd\u770b\u5230\u65b0\u7684\u6d3b\u52a8\u8bb0\u5f55\u548c\u7edf\u8ba1\u53d8\u5316\u3002<\/p>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdac59de8.png\")
<\/p>\n
\n
\u4e8c\u3001\u5feb\u901f\u542f\u52a8<\/h3>\n2.1 \u73af\u5883\u8981\u6c42<\/h4>\n\n- Python 3.11+<\/li>\n<\/ul>\n
\n- DeepSeek API Key（\u5728 platform.deepseek.com \u83b7\u53d6）<\/li>\n<\/ul>\n
2.2 \u5b89\u88c5\u6b65\u9aa4<\/h4>\n
# 1. \u8fdb\u5165\u9879\u76ee\u76ee\u5f55
\ncd D:\\\\Dashboard<\/p>\n
# 2. \u521b\u5efa\u865a\u62df\u73af\u5883
\npython -m venv venv
\nvenv\\\\Scripts\\\\activate # Windows
\n# source venv\/bin\/activate # macOS\/Linux<\/p>\n
# 3. \u5b89\u88c5\u4f9d\u8d56
\npip install -r requirements.txt<\/p>\n
# 4. \u914d\u7f6e\u73af\u5883\u53d8\u91cf
\ncopy .env.example .env <\/p>\n
\u7f16\u8f91 .env \u6587\u4ef6，\u586b\u5165\u4f60\u7684 DeepSeek API Key：<\/p>\n
DEEPSEEK_API_KEY=sk-your-actual-key-here
\nDEEPSEEK_MODEL=deepseek-chat <\/p>\n
2.3 \u542f\u52a8\u670d\u52a1<\/h4>\n
python run.py <\/p>\n
\u542f\u52a8\u540e\u8bbf\u95ee\u4ee5\u4e0b\u5730\u5740：<\/p>\n
\n\n\n\n\u5730\u5740<\/p>\n<\/td>\n
\n\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n\nhttp:\/\/localhost:8000\/chat<\/p>\n<\/td>\n
\n\u7528\u6237\u5bf9\u8bdd\u754c\u9762<\/p>\n<\/td>\n<\/tr>\n
\n\nhttp:\/\/localhost:8000\/dashboard<\/p>\n<\/td>\n
\n\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8<\/p>\n<\/td>\n<\/tr>\n
\n\nHigh Performance Web Crawler API – Swagger UI<\/p>\n<\/td>\n
\nAPI \u4ea4\u4e92\u6587\u6863（Swagger UI）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
2.4 \u4f7f\u7528\u6d41\u7a0b<\/h4>\n
- \u6253\u5f00 \/chat \u9875\u9762，\u8f93\u5165\u7528\u6237\u540d（\u5982"\u5f20\u4e09"）<\/li>\n
- \u8f93\u5165\u6d88\u606f，\u5982"\u5e2e\u6211\u5199\u4e00\u9996\u5173\u4e8e\u79cb\u5929\u7684\u8bd7"<\/li>\n
- DeepSeek \u8fd4\u56de\u56de\u590d，\u754c\u9762\u5e95\u90e8\u663e\u793a\u672c\u6b21\u8c03\u7528\u7684 Token \u6570\u548c\u8d39\u7528<\/li>\n
- \u6253\u5f00 \/dashboard \u9875\u9762（\u53ef\u4ee5\u5f00\u5728\u65b0\u6807\u7b7e\u9875）<\/li>\n
- \u5728\u5bf9\u8bdd\u9875\u53d1\u4e00\u6761\u65b0\u6d88\u606f \u2192 \u4eea\u8868\u76d8\u7684"\u5b9e\u65f6\u6d3b\u52a8"\u533a\u57df\u7acb\u5373\u51fa\u73b0\u8fd9\u6761\u8bb0\u5f55<\/li>\n
- \u7edf\u8ba1\u5361\u7247\u3001Token \u8d8b\u52bf\u56fe\u3001\u8d39\u7528\u8d8b\u52bf\u56fe\u4e5f\u4f1a\u540c\u6b65\u5237\u65b0<\/li>\n
\n\u4e09\u3001\u9879\u76ee\u7ed3\u6784<\/h3>\n
![\"\"](\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdaca4159.png\")
<\/p>\n
\u6574\u4f53\u91c7\u7528\u5206\u5c42\u67b6\u6784：\u8def\u7531\u5c42（routers）\u8d1f\u8d23 HTTP \u5165\u53e3，\u670d\u52a1\u5c42（services）\u5c01\u88c5\u4e1a\u52a1\u903b\u8f91，\u6570\u636e\u5c42（models + database）\u7ba1\u7406\u6301\u4e45\u5316，WebSocket \u5c42（ws）\u5904\u7406\u5b9e\u65f6\u901a\u4fe1\u3002\u5404\u5c42\u4e4b\u95f4\u901a\u8fc7\u4f9d\u8d56\u6ce8\u5165\u89e3\u8026\u3002<\/p>\n
\n\u56db\u3001\u5173\u952e\u6280\u672f\u73af\u8282\u8be6\u89e3<\/h3>\n4.1 DeepSeek API \u96c6\u6210：\u590d\u7528 OpenAI SDK<\/h4>\n
DeepSeek \u7684 API \u5b8c\u5168\u517c\u5bb9 OpenAI \u63a5\u53e3\u683c\u5f0f，\u8fd9\u610f\u5473\u7740\u4e0d\u9700\u8981\u5b89\u88c5\u989d\u5916\u7684 SDK\u2014\u2014\u76f4\u63a5\u7528 openai \u5b98\u65b9\u5e93，\u628a base_url \u6307\u5411 DeepSeek \u5373\u53ef\u3002<\/p>\n
# app\/services\/deepseek.py<\/p>\n
from openai import AsyncOpenAI<\/p>\n
class DeepSeekService:
\n def __init__(self):
\n self.client = AsyncOpenAI(
\n api_key=settings.deepseek_api_key,
\n base_url="https:\/\/api.deepseek.com", # \u5173\u952e：\u6307\u5411 DeepSeek
\n )
\n self.model = "deepseek-chat"<\/p>\n
async def chat(self, messages: list[dict]) -> DeepSeekResult:
\n start = time.monotonic()<\/p>\n
response = await self.client.chat.completions.create(
\n model=self.model,
\n messages=messages,
\n )<\/p>\n
latency_ms = int((time.monotonic() – start) * 1000)<\/p>\n
return DeepSeekResult(
\n content=response.choices[0].message.content,
\n model=self.model,
\n tokens_input=response.usage.prompt_tokens, # \u8f93\u5165 Token
\n tokens_output=response.usage.completion_tokens, # \u8f93\u51fa Token
\n latency_ms=latency_ms,
\n ) <\/p>\n
\u5173\u952e\u70b9：<\/p>\n
\n- \u4f7f\u7528 AsyncOpenAI \u800c\u975e\u540c\u6b65\u5ba2\u6237\u7aef，\u786e\u4fdd API \u8c03\u7528\u4e0d\u963b\u585e\u4e8b\u4ef6\u5faa\u73af<\/li>\n<\/ul>\n
\n- time.monotonic() \u800c\u975e time.time() \u6d4b\u91cf\u5ef6\u8fdf\u2014\u2014\u524d\u8005\u4e0d\u53d7\u7cfb\u7edf\u65f6\u949f\u8c03\u6574\u5f71\u54cd<\/li>\n<\/ul>\n
\n- \u4ece response.usage \u76f4\u63a5\u63d0\u53d6 Token \u7528\u91cf，\u65e0\u9700\u81ea\u5df1\u5b9e\u73b0\u5206\u8bcd\u8ba1\u6570<\/li>\n<\/ul>\n
\n- \u8fd4\u56de\u503c\u7528 dataclass \u5c01\u88c5，\u7c7b\u578b\u6e05\u6670，\u4fbf\u4e8e\u4e0b\u6e38\u6d88\u8d39<\/li>\n<\/ul>\n
4.2 \u5f02\u6b65\u6570\u636e\u5e93：SQLAlchemy 2.0 + aiosqlite<\/h4>\n
\u6574\u4e2a\u6570\u636e\u5c42\u57fa\u4e8e\u5f02\u6b65\u5b9e\u73b0，\u907f\u514d I\/O \u963b\u585e FastAPI \u7684\u4e8b\u4ef6\u5faa\u73af\u3002<\/p>\n
\u5f15\u64ce\u4e0e\u4f1a\u8bdd\u5de5\u5382：<\/p>\n
# app\/database.py<\/p>\n
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession<\/p>\n
engine = create_async_engine("sqlite+aiosqlite:\/\/\/.\/dashboard.db", echo=False)
\nasync_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)<\/p>\n
async def get_db() -> AsyncSession:
\n """FastAPI \u4f9d\u8d56\u6ce8\u5165\u5165\u53e3"""
\n async with async_session() as session:
\n yield session <\/p>\n
\u5173\u952e\u8bbe\u8ba1：<\/p>\n
\n- expire_on_commit=False：commit \u4e4b\u540e ORM \u5bf9\u8c61\u4ecd\u7136\u53ef\u7528（\u9ed8\u8ba4\u4e3a True \u4f1a\u5bfc\u81f4 commit \u540e\u8bbf\u95ee\u5c5e\u6027\u89e6\u53d1\u989d\u5916\u67e5\u8be2）<\/li>\n<\/ul>\n
\n- get_db() \u662f\u4e00\u4e2a\u5f02\u6b65\u751f\u6210\u5668，\u901a\u8fc7 FastAPI \u7684 Depends \u6ce8\u5165\u5230\u6bcf\u4e2a\u8def\u7531\u51fd\u6570\u4e2d，\u8bf7\u6c42\u7ed3\u675f\u81ea\u52a8\u5173\u95ed\u4f1a\u8bdd<\/li>\n<\/ul>\n
\n- \u4f7f\u7528 SQLite + aiosqlite \u4f5c\u4e3a\u96f6\u914d\u7f6e\u5b58\u50a8，\u751f\u4ea7\u73af\u5883\u53ef\u65e0\u7f1d\u5207\u6362\u4e3a PostgreSQL（\u6539\u8fde\u63a5\u5b57\u7b26\u4e32\u5373\u53ef）<\/li>\n<\/ul>\n
\u6570\u636e\u6a21\u578b：<\/p>\n
# app\/models.py（\u7cbe\u7b80）<\/p>\n
class User(Base):
\n id: Mapped[int] # \u81ea\u589e\u4e3b\u952e
\n user_id: Mapped[str] # \u4e1a\u52a1\u7528\u6237ID（\u5982 "\u5f20\u4e09"）
\n name: Mapped[str]
\n created_at \/ last_active_at<\/p>\n
class ChatSession(Base):
\n session_id: Mapped[str] # \u4e1a\u52a1\u4f1a\u8bddID（\u5982 "sess_a1b2c3…"）
\n user_id \u2192 ForeignKey("users.user_id")
\n title: Mapped[str] # \u53d6\u9996\u6761\u6d88\u606f\u524d30\u5b57\u4f5c\u4e3a\u6807\u9898<\/p>\n
class Message(Base):
\n session_id \u2192 ForeignKey("sessions.session_id")
\n role: Mapped[str] # "user" \u6216 "assistant"
\n content: Mapped[str]
\n model: Mapped[str] # \u8bb0\u5f55\u662f\u54ea\u4e2a\u6a21\u578b\u56de\u590d\u7684
\n tokens_input \/ tokens_output # Token \u7528\u91cf
\n cost: Mapped[float] # \u672c\u6b21\u8c03\u7528\u8d39\u7528（\u5143）
\n latency_ms: Mapped[int] # \u54cd\u5e94\u5ef6\u8fdf（\u6beb\u79d2）
\n created_at: Mapped[datetime] <\/p>\n
\u4e09\u5c42\u6a21\u578b\u5f62\u6210 User \u2192 ChatSession \u2192 Message \u7684\u5f52\u5c5e\u94fe\u3002\u5173\u952e\u7d22\u5f15 ix_messages_session_time \u8986\u76d6\u4e86"\u6309\u4f1a\u8bdd\u67e5\u6d88\u606f\u3001\u6309\u65f6\u95f4\u6392\u5e8f"\u7684\u9ad8\u9891\u67e5\u8be2\u8def\u5f84\u3002<\/p>\n
4.3 \u7528\u91cf\u8ffd\u8e2a\u7f16\u6392：track_chat \u65b9\u6cd5<\/h4>\n
tracker.track_chat() \u662f\u6574\u4e2a\u7cfb\u7edf\u7684\u6838\u5fc3\u7f16\u6392\u65b9\u6cd5，\u4e00\u6b21\u8c03\u7528\u4e32\u8054\u4e86"\u5efa\u7528\u6237 \u2192 \u5efa\u4f1a\u8bdd \u2192 \u5b58\u7528\u6237\u6d88\u606f \u2192 \u8c03 DeepSeek \u2192 \u5b58 AI \u56de\u590d \u2192 \u63a8\u9001\u4e8b\u4ef6"\u7684\u5b8c\u6574\u6d41\u7a0b：<\/p>\n
# app\/services\/tracker.py（\u7cbe\u7b80）<\/p>\n
class UsageTracker:
\n async def track_chat(self, db, user_id, user_name, session_id,
\n user_message, history) -> dict:
\n # 1. \u786e\u4fdd\u7528\u6237\u5b58\u5728（\u4e0d\u5b58\u5728\u5219\u521b\u5efa，\u5df2\u5b58\u5728\u5219\u66f4\u65b0\u6d3b\u8dc3\u65f6\u95f4）
\n await self.ensure_user(db, user_id, user_name)<\/p>\n
# 2. \u786e\u4fdd\u4f1a\u8bdd\u5b58\u5728（session_id \u4e3a\u7a7a\u5219\u81ea\u52a8\u521b\u5efa）
\n session = await self.ensure_session(db, session_id, user_id, title)<\/p>\n
# 3. \u5148\u5b58\u7528\u6237\u6d88\u606f
\n await self.record_message(db, session.session_id, "user", user_message)<\/p>\n
# 4. \u8c03\u7528 DeepSeek（\u62fc\u63a5\u5386\u53f2\u4e0a\u4e0b\u6587 + \u5f53\u524d\u6d88\u606f）
\n messages_for_api = history + [{"role": "user", "content": user_message}]
\n result = await deepseek_service.chat(messages_for_api)
\n cost = deepseek_service.calculate_cost(result.tokens_input,
\n result.tokens_output)<\/p>\n
# 5. \u5b58 AI \u56de\u590d（\u542b Token\/\u8d39\u7528\/\u5ef6\u8fdf）
\n await self.record_message(db, session.session_id, "assistant",
\n result.content, model=result.model,
\n tokens_input=result.tokens_input,
\n tokens_output=result.tokens_output,
\n cost=cost, latency_ms=result.latency_ms)
\n await db.commit()<\/p>\n
# 6. WebSocket \u5e7f\u64ad\u5b9e\u65f6\u4e8b\u4ef6
\n await ws_manager.broadcast("activity", {
\n "user_name": user_name,
\n "message_preview": user_message[:80],
\n "tokens_input": result.tokens_input,
\n "tokens_output": result.tokens_output,
\n "cost": cost,
\n "latency_ms": result.latency_ms,
\n …
\n })<\/p>\n
return {"reply": result.content, "cost": cost, …} <\/p>\n
\u5173\u952e\u8bbe\u8ba1：<\/p>\n
\n- \u5148\u8bb0\u5f55\u540e\u63d0\u4ea4：\u7528\u6237\u6d88\u606f\u548c AI \u56de\u590d\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5199\u5165，\u8981\u4e48\u90fd\u6210\u529f，\u8981\u4e48\u90fd\u56de\u6eda<\/li>\n<\/ul>\n
\n- commit \u5728 broadcast \u4e4b\u524d：\u786e\u4fdd\u63a8\u9001\u5230\u4eea\u8868\u76d8\u7684\u6570\u636e\u5df2\u7ecf\u6301\u4e45\u5316，\u4e0d\u4f1a\u51fa\u73b0"\u4eea\u8868\u76d8\u663e\u793a\u4e86\u4f46\u6570\u636e\u5e93\u6ca1\u6709"\u7684\u4e0d\u4e00\u81f4<\/li>\n<\/ul>\n
\n- broadcast \u5728 commit \u4e4b\u540e：\u5982\u679c\u5e7f\u64ad\u5931\u8d25（\u5982 WebSocket \u65ad\u5f00），\u4e0d\u5f71\u54cd\u6570\u636e\u6301\u4e45\u5316<\/li>\n<\/ul>\n
\n- \u8d39\u7528\u8ba1\u7b97：\u57fa\u4e8e DeepSeek \u5b98\u65b9\u5b9a\u4ef7（\u8f93\u5165 1 \u5143\/\u767e\u4e07 Token，\u8f93\u51fa 2 \u5143\/\u767e\u4e07 Token），\u5728 config.py \u4e2d\u53ef\u914d\u7f6e<\/li>\n<\/ul>\n
4.4 WebSocket \u5b9e\u65f6\u63a8\u9001\u67b6\u6784<\/h4>\n
\u8fd9\u662f\u4eea\u8868\u76d8"\u5b9e\u65f6"\u80fd\u529b\u7684\u6838\u5fc3\u3002\u6574\u4e2a\u63a8\u9001\u94fe\u8def\u5206\u4e3a\u4e09\u5c42：<\/p>\n
\u7b2c\u4e00\u5c42：\u8fde\u63a5\u7ba1\u7406\u5668（ws\/manager.py）<\/p>\n
class WebSocketManager:
\n def __init__(self):
\n self._connections: list[WebSocket] = [] # \u6240\u6709\u6d3b\u8dc3\u8fde\u63a5<\/p>\n
async def connect(self, ws: WebSocket):
\n await ws.accept()
\n self._connections.append(ws)<\/p>\n
def disconnect(self, ws: WebSocket):
\n if ws in self._connections:
\n self._connections.remove(ws)<\/p>\n
async def broadcast(self, event_type: str, data: dict):
\n if not self._connections:
\n return # \u6ca1\u6709\u8fde\u63a5\u65f6\u76f4\u63a5\u8df3\u8fc7，\u96f6\u5f00\u9500<\/p>\n
payload = json.dumps({"type": event_type, "data": data}, ensure_ascii=False)
\n dead = []
\n for ws in self._connections:
\n try:
\n await ws.send_text(payload)
\n except Exception:
\n dead.append(ws) # \u6536\u96c6\u53d1\u9001\u5931\u8d25\u7684\u8fde\u63a5
\n for ws in dead:
\n self.disconnect(ws) # \u6e05\u7406\u6b7b\u8fde\u63a5 <\/p>\n
\u5173\u952e\u70b9：<\/p>\n
\n- broadcast \u5728\u6ca1\u6709\u8fde\u63a5\u65f6\u76f4\u63a5\u8fd4\u56de，\u4e0d\u5f71\u54cd\u5bf9\u8bdd\u670d\u52a1\u6027\u80fd<\/li>\n<\/ul>\n
\n- \u53d1\u9001\u5931\u8d25\u7684\u8fde\u63a5\u88ab\u6536\u96c6\u5230 dead \u5217\u8868，\u5e7f\u64ad\u7ed3\u675f\u540e\u7edf\u4e00\u6e05\u7406，\u907f\u514d\u904d\u5386\u8fc7\u7a0b\u4e2d\u4fee\u6539\u5217\u8868<\/li>\n<\/ul>\n
\n- ensure_ascii=False \u786e\u4fdd\u4e2d\u6587\u6d88\u606f\u6b63\u5e38\u4f20\u8f93<\/li>\n<\/ul>\n
\u7b2c\u4e8c\u5c42：WebSocket \u7aef\u70b9（routers\/dashboard.py）<\/p>\n
@router.websocket("\/ws")
\nasync def dashboard_ws(ws: WebSocket):
\n await ws_manager.connect(ws)
\n try:
\n while True:
\n await ws.receive_text() # \u4fdd\u6301\u8fde\u63a5，\u7b49\u5f85\u5ba2\u6237\u7aef\u6d88\u606f
\n except WebSocketDisconnect:
\n ws_manager.disconnect(ws) <\/p>\n
\u8fd9\u4e2a\u7aef\u70b9\u672c\u8eab\u4e0d\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6d88\u606f（\u4eea\u8868\u76d8\u53ea\u9700\u8981\u63a5\u6536\u63a8\u9001），receive_text() \u7684\u4f5c\u7528\u662f\u7ef4\u6301\u8fde\u63a5\u5b58\u6d3b\u3002\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u65f6\u629b\u51fa WebSocketDisconnect \u5f02\u5e38，\u89e6\u53d1\u6e05\u7406\u3002<\/p>\n
\u7b2c\u4e09\u5c42：\u524d\u7aef\u6d88\u8d39（dashboard.js）<\/p>\n
function connectWebSocket() {
\n const protocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
\n const ws = new WebSocket(`${protocol}\/\/${location.host}\/api\/dashboard\/ws`);<\/p>\n
ws.onopen = () => {
\n document.getElementById('wsStatus').textContent = '\u5df2\u8fde\u63a5';
\n };<\/p>\n
ws.onmessage = (event) => {
\n const msg = JSON.parse(event.data);
\n if (msg.type === 'activity') {
\n addActivityItem(msg.data); \/\/ \u63d2\u5165\u5230\u6d3b\u52a8\u6d41\u9876\u90e8
\n loadStats(); \/\/ \u5237\u65b0\u7edf\u8ba1\u5361\u7247
\n loadUsers(); \/\/ \u5237\u65b0\u7528\u6237\u6392\u884c
\n }
\n };<\/p>\n
ws.onclose = () => {
\n document.getElementById('wsStatus').textContent = '\u5df2\u65ad\u5f00';
\n setTimeout(connectWebSocket, 5000); \/\/ 5\u79d2\u540e\u81ea\u52a8\u91cd\u8fde
\n };
\n} <\/p>\n
\u524d\u7aef\u5173\u952e\u70b9：<\/p>\n
\n- \u81ea\u52a8\u9009\u62e9 ws:\/\/ \u6216 wss:\/\/ \u534f\u8bae，\u9002\u914d HTTP\/HTTPS \u90e8\u7f72<\/li>\n<\/ul>\n
\n- \u6536\u5230\u6d88\u606f\u540e\u9664\u4e86\u63d2\u5165\u6d3b\u52a8\u6d41，\u8fd8\u4e3b\u52a8\u62c9\u53d6\u6700\u65b0\u7684\u7edf\u8ba1\u6570\u636e\u548c\u7528\u6237\u5217\u8868（\u56e0\u4e3a WebSocket \u53ea\u63a8\u9001"\u589e\u91cf\u4e8b\u4ef6"，\u805a\u5408\u7edf\u8ba1\u9700\u8981\u91cd\u65b0\u67e5\u8be2）<\/li>\n<\/ul>\n
\n- \u65ad\u7ebf\u540e 5 \u79d2\u81ea\u52a8\u91cd\u8fde，\u4fdd\u8bc1\u957f\u65f6\u95f4\u6253\u5f00\u4eea\u8868\u76d8\u65f6\u7684\u8fde\u63a5\u53ef\u9760\u6027<\/li>\n<\/ul>\n
4.5 \u591a\u8f6e\u5bf9\u8bdd\u4e0a\u4e0b\u6587\u7ba1\u7406<\/h4>\n
\u5bf9\u8bdd\u670d\u52a1\u652f\u6301\u591a\u8f6e\u5bf9\u8bdd，\u5173\u952e\u5728\u4e8e\u5982\u4f55\u6784\u5efa\u4e0a\u4e0b\u6587：<\/p>\n
# app\/routers\/chat.py<\/p>\n
@router.post("")
\nasync def chat(req: ChatRequest, db: AsyncSession = Depends(get_db)):
\n history: list[dict] = []<\/p>\n
if req.session_id:
\n # \u4ece\u6570\u636e\u5e93\u52a0\u8f7d\u8be5\u4f1a\u8bdd\u7684\u5386\u53f2\u6d88\u606f
\n result = await db.execute(
\n select(Message)
\n .where(Message.session_id == req.session_id)
\n .order_by(Message.id)
\n )
\n msgs = result.scalars().all()
\n # \u53ea\u53d6\u6700\u8fd1 10 \u6761\u4f5c\u4e3a\u4e0a\u4e0b\u6587，\u63a7\u5236 Token \u6d88\u8017
\n history = [
\n {"role": m.role, "content": m.content}
\n for m in msgs[-10:]
\n ]<\/p>\n
result = await tracker.track_chat(
\n db=db, user_id=req.user_id, user_message=req.message,
\n session_id=req.session_id, history=history,
\n )
\n return ChatResponse(**result) <\/p>\n
\u5173\u952e\u8bbe\u8ba1：<\/p>\n
\n- \u4e0a\u4e0b\u6587\u4ece\u6570\u636e\u5e93\u6301\u4e45\u5316\u52a0\u8f7d，\u800c\u975e\u4f9d\u8d56\u5185\u5b58\u2014\u2014\u670d\u52a1\u91cd\u542f\u540e\u5bf9\u8bdd\u4e0d\u4e22\u5931<\/li>\n<\/ul>\n
\n- msgs[-10:] \u53ea\u53d6\u6700\u8fd1 10 \u6761\u6d88\u606f，\u907f\u514d\u4e0a\u4e0b\u6587\u65e0\u9650\u81a8\u80c0\u5bfc\u81f4 Token \u6d88\u8017\u5931\u63a7<\/li>\n<\/ul>\n
\n- session_id \u9996\u6b21\u8bf7\u6c42\u65f6\u4e3a None，\u7531 tracker.ensure_session() \u81ea\u52a8\u521b\u5efa\u5e76\u8fd4\u56de，\u540e\u7eed\u8bf7\u6c42\u643a\u5e26\u6b64 ID \u5373\u53ef\u5ef6\u7eed\u5bf9\u8bdd<\/li>\n<\/ul>\n
4.6 \u4eea\u8868\u76d8\u805a\u5408\u67e5\u8be2<\/h4>\n
\u4eea\u8868\u76d8\u7684\u7edf\u8ba1\u63a5\u53e3\u5927\u91cf\u4f7f\u7528 SQL \u805a\u5408\u51fd\u6570，\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5c42\u9762\u5b8c\u6210\u8ba1\u7b97，\u907f\u514d\u628a\u5168\u91cf\u6570\u636e\u62c9\u5230 Python \u4e2d\u5904\u7406：<\/p>\n
# \u603b\u89c8\u7edf\u8ba1 \u2014\u2014 \u4e00\u6b21\u8bf7\u6c42\u62ff\u5230 7 \u4e2a\u6307\u6807
\n@router.get("\/stats")
\nasync def get_stats(db: AsyncSession = Depends(get_db)):
\n total_users = await db.scalar(select(func.count(User.id)))
\n total_cost = await db.scalar(
\n select(func.coalesce(func.sum(Message.cost), 0.0))
\n )
\n avg_latency = await db.scalar(
\n select(func.coalesce(func.avg(Message.latency_ms), 0.0))
\n .where(Message.role == "assistant")
\n )
\n active_24h = await db.scalar(
\n select(func.count(func.distinct(ChatSession.user_id)))
\n .where(ChatSession.updated_at >= cutoff)
\n )
\n …
\n# \u7528\u6237\u7528\u91cf\u6392\u884c \u2014\u2014 \u4e09\u8868 JOIN + GROUP BY
\nstmt = (
\n select(
\n ChatSession.user_id,
\n User.name.label("name"),
\n func.count(Message.id).label("message_count"),
\n func.sum(Message.tokens_input).label("tokens_input"),
\n func.sum(Message.cost).label("total_cost"),
\n func.avg(Message.latency_ms).label("avg_latency_ms"),
\n )
\n .select_from(Message)
\n .join(ChatSession, Message.session_id == ChatSession.session_id)
\n .join(User, ChatSession.user_id == User.user_id)
\n .where(Message.role == "assistant")
\n .group_by(ChatSession.user_id, User.name)
\n .order_by(desc("total_cost"))
\n)
\n# 24\u5c0f\u65f6\u65f6\u95f4\u7ebf \u2014\u2014 \u6309\u5c0f\u65f6\u805a\u5408
\nstmt = (
\n select(
\n func.strftime("%Y-%m-%dT%H:00:00", Message.created_at).label("ts"),
\n func.count(Message.id).label("messages"),
\n func.sum(Message.tokens_input + Message.tokens_output).label("tokens"),
\n func.sum(Message.cost).label("cost"),
\n )
\n .where(Message.created_at >= cutoff)
\n .group_by("ts")
\n .order_by("ts")
\n) <\/p>\n
\u5173\u952e\u70b9：<\/p>\n
\n- func.coalesce(sum(…), 0) \u786e\u4fdd\u65e0\u6570\u636e\u65f6\u8fd4\u56de 0 \u800c\u975e None<\/li>\n<\/ul>\n
\n- func.distinct() \u7528\u4e8e\u7edf\u8ba1\u53bb\u91cd\u6307\u6807（\u5982 24h \u6d3b\u8dc3\u7528\u6237\u6570）<\/li>\n<\/ul>\n
\n- func.strftime() \u5728 SQLite \u4e2d\u505a\u65f6\u95f4\u622a\u65ad\u805a\u5408，\u6309\u5c0f\u65f6\u5206\u7ec4<\/li>\n<\/ul>\n
\n- \u5ef6\u8fdf\u5e73\u5747\u503c\u53ea\u7edf\u8ba1 role == "assistant" \u7684\u6d88\u606f，\u56e0\u4e3a\u7528\u6237\u6d88\u606f\u6ca1\u6709 API \u8c03\u7528\u5ef6\u8fdf<\/li>\n<\/ul>\n
4.7 \u524d\u7aef\u53ef\u89c6\u5316：Chart.js \u8d8b\u52bf\u56fe<\/h4>\n
\u4eea\u8868\u76d8\u4f7f\u7528 Chart.js \u7ed8\u5236 Token \u548c\u8d39\u7528\u7684\u65f6\u95f4\u8d8b\u52bf\u56fe：<\/p>\n
async function loadTimeline() {
\n const res = await fetch(`${API}\/timeline?hours=24`);
\n const points = await res.json();<\/p>\n
const labels = points.map(p => {
\n const d = new Date(p.timestamp);
\n return d.getHours().toString().padStart(2, '0') + ':00';
\n });<\/p>\n
tokenChart = new Chart(tokenCtx, {
\n type: 'line',
\n data: {
\n labels: labels,
\n datasets: [{
\n label: 'Tokens',
\n data: points.map(p => p.tokens),
\n borderColor: '#4f6ef7',
\n backgroundColor: 'rgba(79,110,247,0.08)',
\n fill: true,
\n tension: 0.3, \/\/ \u5e73\u6ed1\u66f2\u7ebf
\n pointRadius: 2,
\n }]
\n },
\n options: {
\n responsive: true,
\n maintainAspectRatio: false,
\n plugins: { legend: { display: false } },
\n }
\n });
\n} <\/p>\n
\u65f6\u95f4\u7ebf\u6bcf 60 \u79d2\u81ea\u52a8\u5237\u65b0\u4e00\u6b21，\u914d\u5408 WebSocket \u7684\u5b9e\u65f6\u63a8\u9001，\u5f62\u6210"\u5b9e\u65f6\u4e8b\u4ef6\u6d41 + \u5b9a\u65f6\u8d8b\u52bf\u5237\u65b0"\u7684\u53cc\u5c42\u66f4\u65b0\u673a\u5236\u3002<\/p>\n
4.8 \u914d\u7f6e\u7ba1\u7406\u4e0e\u5b9a\u4ef7\u6a21\u578b<\/h4>\n
\u4f7f\u7528 pydantic-settings \u7ba1\u7406\u914d\u7f6e，\u652f\u6301\u73af\u5883\u53d8\u91cf\u6ce8\u5165：<\/p>\n
# app\/config.py<\/p>\n
class Settings(BaseSettings):
\n deepseek_api_key: str = os.getenv("DEEPSEEK_API_KEY", "")
\n deepseek_base_url: str = "https:\/\/api.deepseek.com"
\n deepseek_model: str = "deepseek-chat"<\/p>\n
# DeepSeek \u5b9a\u4ef7（\u5143\/\u767e\u4e07 Token）
\n price_input_per_million: float = 1.0 # \u8f93\u5165
\n price_output_per_million: float = 2.0 # \u8f93\u51fa<\/p>\n
database_url: str = "sqlite+aiosqlite:\/\/\/.\/dashboard.db"
\n host: str = "0.0.0.0"
\n port: int = 8000 <\/p>\n
\u8d39\u7528\u8ba1\u7b97\u903b\u8f91：<\/p>\n
def calculate_cost(self, tokens_input: int, tokens_output: int) -> float:
\n cost_in = tokens_input \/ 1_000_000 * settings.price_input_per_million
\n cost_out = tokens_output \/ 1_000_000 * settings.price_output_per_million
\n return round(cost_in + cost_out, 6) <\/p>\n
\u5207\u6362\u6a21\u578b\u65f6\u53ea\u9700\u4fee\u6539 deepseek_model \u548c\u5b9a\u4ef7\u53c2\u6570，\u65e0\u9700\u6539\u4ee3\u7801\u3002<\/p>\n
\n\u4e94\u3001API \u63a5\u53e3\u4e00\u89c8<\/h3>\n\u5bf9\u8bdd\u670d\u52a1<\/h4>\n
\n\n\n\n\u65b9\u6cd5<\/p>\n<\/td>\n
\n\u8def\u5f84<\/p>\n<\/td>\n
\n\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n\nPOST<\/p>\n<\/td>\n
\n\/api\/chat<\/p>\n<\/td>\n
\n\u53d1\u9001\u6d88\u606f，\u83b7\u53d6 AI \u56de\u590d<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/chat\/sessions<\/p>\n<\/td>\n
\n\u83b7\u53d6\u4f1a\u8bdd\u5217\u8868（\u652f\u6301 user_id \u8fc7\u6ee4）<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/chat\/sessions\/{id}<\/p>\n<\/td>\n
\n\u83b7\u53d6\u4f1a\u8bdd\u8be6\u60c5（\u542b\u5b8c\u6574\u6d88\u606f\u5386\u53f2）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
POST \/api\/chat \u8bf7\u6c42\u4f53：<\/p>\n
{
\n "message": "\u5e2e\u6211\u5199\u4e00\u9996\u5173\u4e8e\u79cb\u5929\u7684\u8bd7",
\n "user_id": "zhangsan",
\n "user_name": "\u5f20\u4e09",
\n "session_id": null
\n} <\/p>\n
\u54cd\u5e94：<\/p>\n
{
\n "session_id": "sess_a1b2c3d4e5f6",
\n "reply": "\u79cb\u98ce\u8d77\u5904\u53f6\u7eb7\u98de…",
\n "model": "deepseek-chat",
\n "tokens_input": 52,
\n "tokens_output": 128,
\n "cost": 0.000308,
\n "latency_ms": 1840
\n} <\/p>\n
\u4eea\u8868\u76d8\u670d\u52a1<\/h4>\n
\n\n\n\n\u65b9\u6cd5<\/p>\n<\/td>\n
\n\u8def\u5f84<\/p>\n<\/td>\n
\n\u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/dashboard\/stats<\/p>\n<\/td>\n
\n\u603b\u89c8\u7edf\u8ba1（7 \u4e2a\u6307\u6807）<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/dashboard\/users<\/p>\n<\/td>\n
\n\u7528\u6237\u7528\u91cf\u6392\u884c<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/dashboard\/timeline<\/p>\n<\/td>\n
\n24 \u5c0f\u65f6\u65f6\u95f4\u7ebf（\u6309\u5c0f\u65f6\u805a\u5408）<\/p>\n<\/td>\n<\/tr>\n
\n\nGET<\/p>\n<\/td>\n
\n\/api\/dashboard\/recent-activity<\/p>\n<\/td>\n
\n\u6700\u8fd1 20 \u6761\u6d3b\u52a8<\/p>\n<\/td>\n<\/tr>\n
\n\nWS<\/p>\n<\/td>\n
\n\/api\/dashboard\/ws<\/p>\n<\/td>\n
\nWebSocket \u5b9e\u65f6\u63a8\u9001\u7aef\u70b9<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\u516d\u3001\u6570\u636e\u6d41\u5168\u666f<\/h3>\n
\u628a\u6240\u6709\u73af\u8282\u4e32\u8d77\u6765，\u4e00\u6b21\u5b8c\u6574\u7684\u5bf9\u8bdd\u8bf7\u6c42\u7ecf\u8fc7\u4ee5\u4e0b\u6b65\u9aa4：<\/p>\n
1. \u7528\u6237\u5728 \/chat \u9875\u9762\u8f93\u5165\u6d88\u606f
\n2. chat.js \u53d1\u9001 POST \/api\/chat
\n3. chat.py \u8def\u7531\u6536\u5230\u8bf7\u6c42，\u4ece DB \u52a0\u8f7d\u6700\u8fd1 10 \u6761\u5386\u53f2\u6d88\u606f
\n4. \u8c03\u7528 tracker.track_chat():
\n a. ensure_user() \u2192 \u521b\u5efa\u6216\u66f4\u65b0\u7528\u6237\u8bb0\u5f55
\n b. ensure_session() \u2192 \u521b\u5efa\u6216\u66f4\u65b0\u4f1a\u8bdd\u8bb0\u5f55
\n c. record_message() \u2192 \u5b58\u50a8\u7528\u6237\u6d88\u606f
\n d. deepseek_service.chat() \u2192 \u5f02\u6b65\u8c03\u7528 DeepSeek API
\n e. calculate_cost() \u2192 \u8ba1\u7b97\u8d39\u7528
\n f. record_message() \u2192 \u5b58\u50a8 AI \u56de\u590d（\u542b Token\/\u8d39\u7528\/\u5ef6\u8fdf）
\n g. db.commit() \u2192 \u63d0\u4ea4\u4e8b\u52a1
\n h. ws_manager.broadcast() \u2192 WebSocket \u63a8\u9001\u4e8b\u4ef6
\n5. \u8fd4\u56de JSON \u54cd\u5e94\u7ed9 chat.js
\n6. chat.js \u66f4\u65b0\u5bf9\u8bdd\u754c\u9762，\u663e\u793a\u56de\u590d\u548c\u7528\u91cf
\n7. dashboard.js \u6536\u5230 WebSocket \u6d88\u606f:
\n a. \u63d2\u5165\u6d3b\u52a8\u6d41\u9876\u90e8
\n b. \u5237\u65b0\u7edf\u8ba1\u5361\u7247
\n c. \u5237\u65b0\u7528\u6237\u6392\u884c <\/p>\n
\u6574\u4e2a\u8fc7\u7a0b\u4e2d，DeepSeek API \u8c03\u7528\u662f\u6700\u6162\u7684\u4e00\u73af（\u901a\u5e38 1-3 \u79d2），\u5176\u4ed6\u73af\u8282\u90fd\u662f\u6beb\u79d2\u7ea7\u3002\u7531\u4e8e\u5168\u90e8\u5f02\u6b65\u5b9e\u73b0，\u5373\u4f7f\u6709\u591a\u4e2a\u7528\u6237\u540c\u65f6\u5bf9\u8bdd，\u4e5f\u4e0d\u4f1a\u4e92\u76f8\u963b\u585e\u3002<\/p>\n
\n\u4e03\u3001\u6269\u5c55\u65b9\u5411<\/h3>\n
\u8fd9\u4e2a Demo \u662f\u4e00\u4e2a\u6700\u5c0f\u53ef\u8fd0\u884c\u7248\u672c，\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b9e\u7528\u7684\u6269\u5c55\u65b9\u5411：<\/p>\n
\n\n\n\n\u65b9\u5411<\/p>\n<\/td>\n
\n\u505a\u6cd5<\/p>\n<\/td>\n<\/tr>\n
\n\n\u6d41\u5f0f\u8f93\u51fa<\/p>\n<\/td>\n
\n\u4f7f\u7528 DeepSeek \u7684 stream=True + FastAPI \u7684 StreamingResponse，\u8ba9\u7528\u6237\u9010\u5b57\u770b\u5230\u56de\u590d<\/p>\n<\/td>\n<\/tr>\n
\n\n\u7528\u6237\u8ba4\u8bc1<\/p>\n<\/td>\n
\n\u52a0\u5165 JWT \u8ba4\u8bc1，user_id \u4ece Token \u4e2d\u63d0\u53d6\u800c\u975e\u524d\u7aef\u4f20\u5165<\/p>\n<\/td>\n<\/tr>\n
\n\n\u6570\u636e\u5e93\u8fc1\u79fb<\/p>\n<\/td>\n
\n\u5f15\u5165 Alembic \u7ba1\u7406\u8868\u7ed3\u6784\u53d8\u66f4，\u652f\u6301\u5e73\u6ed1\u5347\u7ea7<\/p>\n<\/td>\n<\/tr>\n
\n\n\u591a\u6a21\u578b\u652f\u6301<\/p>\n<\/td>\n
\n\u5728 config.py \u4e2d\u914d\u7f6e\u591a\u4e2a\u6a21\u578b，\u524d\u7aef\u53ef\u9009\u62e9，\u7edf\u8ba1\u6309\u6a21\u578b\u5206\u7ec4<\/p>\n<\/td>\n<\/tr>\n
\n\n\u544a\u8b66\u673a\u5236<\/p>\n<\/td>\n
\n\u5f53\u67d0\u7528\u6237 Token \u6d88\u8017\u8d85\u8fc7\u9608\u503c\u65f6，\u901a\u8fc7 WebSocket \u63a8\u9001\u544a\u8b66\u4e8b\u4ef6<\/p>\n<\/td>\n<\/tr>\n
\n\n\u6570\u636e\u5bfc\u51fa<\/p>\n<\/td>\n
\n\u589e\u52a0\u5bfc\u51fa CSV\/Excel \u63a5\u53e3，\u65b9\u4fbf\u79bb\u7ebf\u5206\u6790<\/p>\n<\/td>\n<\/tr>\n
\n\n\u90e8\u7f72\u4e0a\u7ebf<\/p>\n<\/td>\n
\n\u7528 Gunicorn + Uvicorn worker \u90e8\u7f72，\u6570\u636e\u5e93\u5207\u6362\u4e3a PostgreSQL<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\u516b\u3001\u603b\u7ed3<\/h3>\n
\u8fd9\u4e2a Demo \u5c55\u793a\u4e86\u6784\u5efa AI \u5e94\u7528\u76d1\u63a7\u4f53\u7cfb\u7684\u51e0\u4e2a\u6838\u5fc3\u6a21\u5f0f：<\/p>\n
- API \u517c\u5bb9\u590d\u7528：DeepSeek \u517c\u5bb9 OpenAI \u63a5\u53e3，\u76f4\u63a5\u7528 openai SDK \u5373\u53ef\u96c6\u6210，\u96f6\u989d\u5916\u5b66\u4e60\u6210\u672c<\/li>\n
- \u5168\u94fe\u8def\u5f02\u6b65：\u4ece\u6570\u636e\u5e93（aiosqlite）\u5230 HTTP（FastAPI）\u5230 LLM \u8c03\u7528（AsyncOpenAI），\u5168\u5f02\u6b65\u5b9e\u73b0，\u9ad8\u5e76\u53d1\u53cb\u597d<\/li>\n
- \u8ffd\u8e2a\u5d4c\u5165\u5f0f\u8bbe\u8ba1：\u7528\u91cf\u8ffd\u8e2a\u903b\u8f91\u5185\u5d4c\u5728\u5bf9\u8bdd\u6d41\u7a0b\u4e2d（track_chat \u65b9\u6cd5），\u4e1a\u52a1\u4ee3\u7801\u65e0\u9700\u611f\u77e5<\/li>\n
- WebSocket \u5b9e\u65f6\u63a8\u9001：\u8f7b\u91cf\u7ea7\u7684\u8fde\u63a5\u7ba1\u7406\u5668 + \u5e7f\u64ad\u6a21\u5f0f，\u5b9e\u73b0\u4eea\u8868\u76d8\u7684\u5b9e\u65f6\u66f4\u65b0<\/li>\n
- SQL \u805a\u5408\u4e0b\u6c89：\u7edf\u8ba1\u8ba1\u7b97\u76f4\u63a5\u7528 SQL \u805a\u5408\u51fd\u6570\u5b8c\u6210，\u907f\u514d\u628a\u6570\u636e\u62c9\u5230\u5e94\u7528\u5c42\u5904\u7406<\/li>\n
\u9879\u76ee\u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e：\u5b83\u628a"AI \u5bf9\u8bdd"\u548c"\u7528\u91cf\u76d1\u63a7"\u8fd9\u4e24\u4ef6\u4e8b\u7528\u6700\u5c0f\u4ee3\u4ef7\u4e32\u8054\u8d77\u6765\u4e86\u3002\u5982\u679c\u4f60\u6b63\u5728\u505a\u4e00\u4e2a\u63a5\u5165\u5927\u6a21\u578b\u7684\u5e94\u7528，\u8fd9\u4e2a\u67b6\u6784\u53ef\u4ee5\u76f4\u63a5\u4f5c\u4e3a\u8d77\u70b9\u3002<\/p>\n
\u4e5d\u3001\u6e90\u4ee3\u7801\u5730\u5740<\/h3>\n
Dashboard<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，\\”\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48\\”\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48
\n\u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237 <\/p>\n","protected":false},"author":2,"featured_media":85305,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[72,947,50],"topic":[],"class_list":["post-85307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-fastapi","tag-websocket","tag-50"],"yoast_head":"\n
\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/85307.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，"\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48"\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48 \u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/85307.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-27T03:17:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdac59de8.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/85307.html\",\"name\":\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-07-27T03:17:01+00:00\",\"dateModified\":\"2026-07-27T03:17:01+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/85307.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/85307.html","og_locale":"zh_CN","og_type":"article","og_title":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，\"\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48\"\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48 \u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237","og_url":"https:\/\/www.wsisp.com\/helps\/85307.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-07-27T03:17:01+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdac59de8.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"8 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/85307.html","url":"https:\/\/www.wsisp.com\/helps\/85307.html","name":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-07-27T03:17:01+00:00","dateModified":"2026-07-27T03:17:01+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/85307.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/85307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=85307"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/85307\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/85305"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=85307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=85307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=85307"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=85307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \n
- Python 3.11+<\/li>\n<\/ul>\n
- \n
- DeepSeek API Key（\u5728 platform.deepseek.com \u83b7\u53d6）<\/li>\n<\/ul>\n
2.2 \u5b89\u88c5\u6b65\u9aa4<\/h4>\n
# 1. \u8fdb\u5165\u9879\u76ee\u76ee\u5f55
\ncd D:\\\\Dashboard<\/p>\n# 2. \u521b\u5efa\u865a\u62df\u73af\u5883
\npython -m venv venv
\nvenv\\\\Scripts\\\\activate # Windows
\n# source venv\/bin\/activate # macOS\/Linux<\/p>\n# 3. \u5b89\u88c5\u4f9d\u8d56
\npip install -r requirements.txt<\/p>\n# 4. \u914d\u7f6e\u73af\u5883\u53d8\u91cf
\ncopy .env.example .env <\/p>\n\u7f16\u8f91 .env \u6587\u4ef6，\u586b\u5165\u4f60\u7684 DeepSeek API Key：<\/p>\n
DEEPSEEK_API_KEY=sk-your-actual-key-here
\nDEEPSEEK_MODEL=deepseek-chat <\/p>\n2.3 \u542f\u52a8\u670d\u52a1<\/h4>\n
python run.py <\/p>\n
\u542f\u52a8\u540e\u8bbf\u95ee\u4ee5\u4e0b\u5730\u5740：<\/p>\n
\n\n
\n \n \u5730\u5740<\/p>\n<\/td>\n
\n \u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n \n http:\/\/localhost:8000\/chat<\/p>\n<\/td>\n
\n \u7528\u6237\u5bf9\u8bdd\u754c\u9762<\/p>\n<\/td>\n<\/tr>\n
\n \n http:\/\/localhost:8000\/dashboard<\/p>\n<\/td>\n
\n \u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8<\/p>\n<\/td>\n<\/tr>\n
\n \n High Performance Web Crawler API – Swagger UI<\/p>\n<\/td>\n
\n API \u4ea4\u4e92\u6587\u6863（Swagger UI）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
2.4 \u4f7f\u7528\u6d41\u7a0b<\/h4>\n
- \u6253\u5f00 \/chat \u9875\u9762，\u8f93\u5165\u7528\u6237\u540d（\u5982"\u5f20\u4e09"）<\/li>\n
- \u8f93\u5165\u6d88\u606f，\u5982"\u5e2e\u6211\u5199\u4e00\u9996\u5173\u4e8e\u79cb\u5929\u7684\u8bd7"<\/li>\n
- DeepSeek \u8fd4\u56de\u56de\u590d，\u754c\u9762\u5e95\u90e8\u663e\u793a\u672c\u6b21\u8c03\u7528\u7684 Token \u6570\u548c\u8d39\u7528<\/li>\n
- \u6253\u5f00 \/dashboard \u9875\u9762（\u53ef\u4ee5\u5f00\u5728\u65b0\u6807\u7b7e\u9875）<\/li>\n
- \u5728\u5bf9\u8bdd\u9875\u53d1\u4e00\u6761\u65b0\u6d88\u606f \u2192 \u4eea\u8868\u76d8\u7684"\u5b9e\u65f6\u6d3b\u52a8"\u533a\u57df\u7acb\u5373\u51fa\u73b0\u8fd9\u6761\u8bb0\u5f55<\/li>\n
- \u7edf\u8ba1\u5361\u7247\u3001Token \u8d8b\u52bf\u56fe\u3001\u8d39\u7528\u8d8b\u52bf\u56fe\u4e5f\u4f1a\u540c\u6b65\u5237\u65b0<\/li>\n
\n\u4e09\u3001\u9879\u76ee\u7ed3\u6784<\/h3>\n
<\/p>\n\u6574\u4f53\u91c7\u7528\u5206\u5c42\u67b6\u6784：\u8def\u7531\u5c42（routers）\u8d1f\u8d23 HTTP \u5165\u53e3，\u670d\u52a1\u5c42（services）\u5c01\u88c5\u4e1a\u52a1\u903b\u8f91，\u6570\u636e\u5c42（models + database）\u7ba1\u7406\u6301\u4e45\u5316，WebSocket \u5c42（ws）\u5904\u7406\u5b9e\u65f6\u901a\u4fe1\u3002\u5404\u5c42\u4e4b\u95f4\u901a\u8fc7\u4f9d\u8d56\u6ce8\u5165\u89e3\u8026\u3002<\/p>\n
\n\u56db\u3001\u5173\u952e\u6280\u672f\u73af\u8282\u8be6\u89e3<\/h3>\n
4.1 DeepSeek API \u96c6\u6210：\u590d\u7528 OpenAI SDK<\/h4>\n
DeepSeek \u7684 API \u5b8c\u5168\u517c\u5bb9 OpenAI \u63a5\u53e3\u683c\u5f0f，\u8fd9\u610f\u5473\u7740\u4e0d\u9700\u8981\u5b89\u88c5\u989d\u5916\u7684 SDK\u2014\u2014\u76f4\u63a5\u7528 openai \u5b98\u65b9\u5e93，\u628a base_url \u6307\u5411 DeepSeek \u5373\u53ef\u3002<\/p>\n
# app\/services\/deepseek.py<\/p>\n
from openai import AsyncOpenAI<\/p>\n
class DeepSeekService:
\n def __init__(self):
\n self.client = AsyncOpenAI(
\n api_key=settings.deepseek_api_key,
\n base_url="https:\/\/api.deepseek.com", # \u5173\u952e：\u6307\u5411 DeepSeek
\n )
\n self.model = "deepseek-chat"<\/p>\nasync def chat(self, messages: list[dict]) -> DeepSeekResult:
\n start = time.monotonic()<\/p>\nresponse = await self.client.chat.completions.create(
\n model=self.model,
\n messages=messages,
\n )<\/p>\nlatency_ms = int((time.monotonic() – start) * 1000)<\/p>\n
return DeepSeekResult(
\n content=response.choices[0].message.content,
\n model=self.model,
\n tokens_input=response.usage.prompt_tokens, # \u8f93\u5165 Token
\n tokens_output=response.usage.completion_tokens, # \u8f93\u51fa Token
\n latency_ms=latency_ms,
\n ) <\/p>\n\u5173\u952e\u70b9：<\/p>\n
- \n
- \u4f7f\u7528 AsyncOpenAI \u800c\u975e\u540c\u6b65\u5ba2\u6237\u7aef，\u786e\u4fdd API \u8c03\u7528\u4e0d\u963b\u585e\u4e8b\u4ef6\u5faa\u73af<\/li>\n<\/ul>\n
- \n
- time.monotonic() \u800c\u975e time.time() \u6d4b\u91cf\u5ef6\u8fdf\u2014\u2014\u524d\u8005\u4e0d\u53d7\u7cfb\u7edf\u65f6\u949f\u8c03\u6574\u5f71\u54cd<\/li>\n<\/ul>\n
- \n
- \u4ece response.usage \u76f4\u63a5\u63d0\u53d6 Token \u7528\u91cf，\u65e0\u9700\u81ea\u5df1\u5b9e\u73b0\u5206\u8bcd\u8ba1\u6570<\/li>\n<\/ul>\n
- \n
- \u8fd4\u56de\u503c\u7528 dataclass \u5c01\u88c5，\u7c7b\u578b\u6e05\u6670，\u4fbf\u4e8e\u4e0b\u6e38\u6d88\u8d39<\/li>\n<\/ul>\n
4.2 \u5f02\u6b65\u6570\u636e\u5e93：SQLAlchemy 2.0 + aiosqlite<\/h4>\n
\u6574\u4e2a\u6570\u636e\u5c42\u57fa\u4e8e\u5f02\u6b65\u5b9e\u73b0，\u907f\u514d I\/O \u963b\u585e FastAPI \u7684\u4e8b\u4ef6\u5faa\u73af\u3002<\/p>\n
\u5f15\u64ce\u4e0e\u4f1a\u8bdd\u5de5\u5382：<\/p>\n
# app\/database.py<\/p>\n
from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession<\/p>\n
engine = create_async_engine("sqlite+aiosqlite:\/\/\/.\/dashboard.db", echo=False)
\nasync_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)<\/p>\nasync def get_db() -> AsyncSession:
\n """FastAPI \u4f9d\u8d56\u6ce8\u5165\u5165\u53e3"""
\n async with async_session() as session:
\n yield session <\/p>\n\u5173\u952e\u8bbe\u8ba1：<\/p>\n
- \n
- expire_on_commit=False：commit \u4e4b\u540e ORM \u5bf9\u8c61\u4ecd\u7136\u53ef\u7528（\u9ed8\u8ba4\u4e3a True \u4f1a\u5bfc\u81f4 commit \u540e\u8bbf\u95ee\u5c5e\u6027\u89e6\u53d1\u989d\u5916\u67e5\u8be2）<\/li>\n<\/ul>\n
- \n
- get_db() \u662f\u4e00\u4e2a\u5f02\u6b65\u751f\u6210\u5668，\u901a\u8fc7 FastAPI \u7684 Depends \u6ce8\u5165\u5230\u6bcf\u4e2a\u8def\u7531\u51fd\u6570\u4e2d，\u8bf7\u6c42\u7ed3\u675f\u81ea\u52a8\u5173\u95ed\u4f1a\u8bdd<\/li>\n<\/ul>\n
- \n
- \u4f7f\u7528 SQLite + aiosqlite \u4f5c\u4e3a\u96f6\u914d\u7f6e\u5b58\u50a8，\u751f\u4ea7\u73af\u5883\u53ef\u65e0\u7f1d\u5207\u6362\u4e3a PostgreSQL（\u6539\u8fde\u63a5\u5b57\u7b26\u4e32\u5373\u53ef）<\/li>\n<\/ul>\n
\u6570\u636e\u6a21\u578b：<\/p>\n
# app\/models.py（\u7cbe\u7b80）<\/p>\n
class User(Base):
\n id: Mapped[int] # \u81ea\u589e\u4e3b\u952e
\n user_id: Mapped[str] # \u4e1a\u52a1\u7528\u6237ID（\u5982 "\u5f20\u4e09"）
\n name: Mapped[str]
\n created_at \/ last_active_at<\/p>\nclass ChatSession(Base):
\n session_id: Mapped[str] # \u4e1a\u52a1\u4f1a\u8bddID（\u5982 "sess_a1b2c3…"）
\n user_id \u2192 ForeignKey("users.user_id")
\n title: Mapped[str] # \u53d6\u9996\u6761\u6d88\u606f\u524d30\u5b57\u4f5c\u4e3a\u6807\u9898<\/p>\nclass Message(Base):
\n session_id \u2192 ForeignKey("sessions.session_id")
\n role: Mapped[str] # "user" \u6216 "assistant"
\n content: Mapped[str]
\n model: Mapped[str] # \u8bb0\u5f55\u662f\u54ea\u4e2a\u6a21\u578b\u56de\u590d\u7684
\n tokens_input \/ tokens_output # Token \u7528\u91cf
\n cost: Mapped[float] # \u672c\u6b21\u8c03\u7528\u8d39\u7528（\u5143）
\n latency_ms: Mapped[int] # \u54cd\u5e94\u5ef6\u8fdf（\u6beb\u79d2）
\n created_at: Mapped[datetime] <\/p>\n\u4e09\u5c42\u6a21\u578b\u5f62\u6210 User \u2192 ChatSession \u2192 Message \u7684\u5f52\u5c5e\u94fe\u3002\u5173\u952e\u7d22\u5f15 ix_messages_session_time \u8986\u76d6\u4e86"\u6309\u4f1a\u8bdd\u67e5\u6d88\u606f\u3001\u6309\u65f6\u95f4\u6392\u5e8f"\u7684\u9ad8\u9891\u67e5\u8be2\u8def\u5f84\u3002<\/p>\n
4.3 \u7528\u91cf\u8ffd\u8e2a\u7f16\u6392：track_chat \u65b9\u6cd5<\/h4>\n
tracker.track_chat() \u662f\u6574\u4e2a\u7cfb\u7edf\u7684\u6838\u5fc3\u7f16\u6392\u65b9\u6cd5，\u4e00\u6b21\u8c03\u7528\u4e32\u8054\u4e86"\u5efa\u7528\u6237 \u2192 \u5efa\u4f1a\u8bdd \u2192 \u5b58\u7528\u6237\u6d88\u606f \u2192 \u8c03 DeepSeek \u2192 \u5b58 AI \u56de\u590d \u2192 \u63a8\u9001\u4e8b\u4ef6"\u7684\u5b8c\u6574\u6d41\u7a0b：<\/p>\n
# app\/services\/tracker.py（\u7cbe\u7b80）<\/p>\n
class UsageTracker:
\n async def track_chat(self, db, user_id, user_name, session_id,
\n user_message, history) -> dict:
\n # 1. \u786e\u4fdd\u7528\u6237\u5b58\u5728（\u4e0d\u5b58\u5728\u5219\u521b\u5efa，\u5df2\u5b58\u5728\u5219\u66f4\u65b0\u6d3b\u8dc3\u65f6\u95f4）
\n await self.ensure_user(db, user_id, user_name)<\/p>\n# 2. \u786e\u4fdd\u4f1a\u8bdd\u5b58\u5728（session_id \u4e3a\u7a7a\u5219\u81ea\u52a8\u521b\u5efa）
\n session = await self.ensure_session(db, session_id, user_id, title)<\/p>\n# 3. \u5148\u5b58\u7528\u6237\u6d88\u606f
\n await self.record_message(db, session.session_id, "user", user_message)<\/p>\n# 4. \u8c03\u7528 DeepSeek（\u62fc\u63a5\u5386\u53f2\u4e0a\u4e0b\u6587 + \u5f53\u524d\u6d88\u606f）
\n messages_for_api = history + [{"role": "user", "content": user_message}]
\n result = await deepseek_service.chat(messages_for_api)
\n cost = deepseek_service.calculate_cost(result.tokens_input,
\n result.tokens_output)<\/p>\n# 5. \u5b58 AI \u56de\u590d（\u542b Token\/\u8d39\u7528\/\u5ef6\u8fdf）
\n await self.record_message(db, session.session_id, "assistant",
\n result.content, model=result.model,
\n tokens_input=result.tokens_input,
\n tokens_output=result.tokens_output,
\n cost=cost, latency_ms=result.latency_ms)
\n await db.commit()<\/p>\n# 6. WebSocket \u5e7f\u64ad\u5b9e\u65f6\u4e8b\u4ef6
\n await ws_manager.broadcast("activity", {
\n "user_name": user_name,
\n "message_preview": user_message[:80],
\n "tokens_input": result.tokens_input,
\n "tokens_output": result.tokens_output,
\n "cost": cost,
\n "latency_ms": result.latency_ms,
\n …
\n })<\/p>\nreturn {"reply": result.content, "cost": cost, …} <\/p>\n
\u5173\u952e\u8bbe\u8ba1：<\/p>\n
- \n
- \u5148\u8bb0\u5f55\u540e\u63d0\u4ea4：\u7528\u6237\u6d88\u606f\u548c AI \u56de\u590d\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5199\u5165，\u8981\u4e48\u90fd\u6210\u529f，\u8981\u4e48\u90fd\u56de\u6eda<\/li>\n<\/ul>\n
- \n
- commit \u5728 broadcast \u4e4b\u524d：\u786e\u4fdd\u63a8\u9001\u5230\u4eea\u8868\u76d8\u7684\u6570\u636e\u5df2\u7ecf\u6301\u4e45\u5316，\u4e0d\u4f1a\u51fa\u73b0"\u4eea\u8868\u76d8\u663e\u793a\u4e86\u4f46\u6570\u636e\u5e93\u6ca1\u6709"\u7684\u4e0d\u4e00\u81f4<\/li>\n<\/ul>\n
- \n
- broadcast \u5728 commit \u4e4b\u540e：\u5982\u679c\u5e7f\u64ad\u5931\u8d25（\u5982 WebSocket \u65ad\u5f00），\u4e0d\u5f71\u54cd\u6570\u636e\u6301\u4e45\u5316<\/li>\n<\/ul>\n
- \n
- \u8d39\u7528\u8ba1\u7b97：\u57fa\u4e8e DeepSeek \u5b98\u65b9\u5b9a\u4ef7（\u8f93\u5165 1 \u5143\/\u767e\u4e07 Token，\u8f93\u51fa 2 \u5143\/\u767e\u4e07 Token），\u5728 config.py \u4e2d\u53ef\u914d\u7f6e<\/li>\n<\/ul>\n
4.4 WebSocket \u5b9e\u65f6\u63a8\u9001\u67b6\u6784<\/h4>\n
\u8fd9\u662f\u4eea\u8868\u76d8"\u5b9e\u65f6"\u80fd\u529b\u7684\u6838\u5fc3\u3002\u6574\u4e2a\u63a8\u9001\u94fe\u8def\u5206\u4e3a\u4e09\u5c42：<\/p>\n
\u7b2c\u4e00\u5c42：\u8fde\u63a5\u7ba1\u7406\u5668（ws\/manager.py）<\/p>\n
class WebSocketManager:
\n def __init__(self):
\n self._connections: list[WebSocket] = [] # \u6240\u6709\u6d3b\u8dc3\u8fde\u63a5<\/p>\nasync def connect(self, ws: WebSocket):
\n await ws.accept()
\n self._connections.append(ws)<\/p>\ndef disconnect(self, ws: WebSocket):
\n if ws in self._connections:
\n self._connections.remove(ws)<\/p>\nasync def broadcast(self, event_type: str, data: dict):
\n if not self._connections:
\n return # \u6ca1\u6709\u8fde\u63a5\u65f6\u76f4\u63a5\u8df3\u8fc7，\u96f6\u5f00\u9500<\/p>\npayload = json.dumps({"type": event_type, "data": data}, ensure_ascii=False)
\n dead = []
\n for ws in self._connections:
\n try:
\n await ws.send_text(payload)
\n except Exception:
\n dead.append(ws) # \u6536\u96c6\u53d1\u9001\u5931\u8d25\u7684\u8fde\u63a5
\n for ws in dead:
\n self.disconnect(ws) # \u6e05\u7406\u6b7b\u8fde\u63a5 <\/p>\n\u5173\u952e\u70b9：<\/p>\n
- \n
- broadcast \u5728\u6ca1\u6709\u8fde\u63a5\u65f6\u76f4\u63a5\u8fd4\u56de，\u4e0d\u5f71\u54cd\u5bf9\u8bdd\u670d\u52a1\u6027\u80fd<\/li>\n<\/ul>\n
- \n
- \u53d1\u9001\u5931\u8d25\u7684\u8fde\u63a5\u88ab\u6536\u96c6\u5230 dead \u5217\u8868，\u5e7f\u64ad\u7ed3\u675f\u540e\u7edf\u4e00\u6e05\u7406，\u907f\u514d\u904d\u5386\u8fc7\u7a0b\u4e2d\u4fee\u6539\u5217\u8868<\/li>\n<\/ul>\n
- \n
- ensure_ascii=False \u786e\u4fdd\u4e2d\u6587\u6d88\u606f\u6b63\u5e38\u4f20\u8f93<\/li>\n<\/ul>\n
\u7b2c\u4e8c\u5c42：WebSocket \u7aef\u70b9（routers\/dashboard.py）<\/p>\n
@router.websocket("\/ws")
\nasync def dashboard_ws(ws: WebSocket):
\n await ws_manager.connect(ws)
\n try:
\n while True:
\n await ws.receive_text() # \u4fdd\u6301\u8fde\u63a5，\u7b49\u5f85\u5ba2\u6237\u7aef\u6d88\u606f
\n except WebSocketDisconnect:
\n ws_manager.disconnect(ws) <\/p>\n\u8fd9\u4e2a\u7aef\u70b9\u672c\u8eab\u4e0d\u5904\u7406\u5ba2\u6237\u7aef\u53d1\u6765\u7684\u6d88\u606f（\u4eea\u8868\u76d8\u53ea\u9700\u8981\u63a5\u6536\u63a8\u9001），receive_text() \u7684\u4f5c\u7528\u662f\u7ef4\u6301\u8fde\u63a5\u5b58\u6d3b\u3002\u5f53\u5ba2\u6237\u7aef\u65ad\u5f00\u65f6\u629b\u51fa WebSocketDisconnect \u5f02\u5e38，\u89e6\u53d1\u6e05\u7406\u3002<\/p>\n
\u7b2c\u4e09\u5c42：\u524d\u7aef\u6d88\u8d39（dashboard.js）<\/p>\n
function connectWebSocket() {
\n const protocol = location.protocol === 'https:' ? 'wss:' : 'ws:';
\n const ws = new WebSocket(`${protocol}\/\/${location.host}\/api\/dashboard\/ws`);<\/p>\nws.onopen = () => {
\n document.getElementById('wsStatus').textContent = '\u5df2\u8fde\u63a5';
\n };<\/p>\nws.onmessage = (event) => {
\n const msg = JSON.parse(event.data);
\n if (msg.type === 'activity') {
\n addActivityItem(msg.data); \/\/ \u63d2\u5165\u5230\u6d3b\u52a8\u6d41\u9876\u90e8
\n loadStats(); \/\/ \u5237\u65b0\u7edf\u8ba1\u5361\u7247
\n loadUsers(); \/\/ \u5237\u65b0\u7528\u6237\u6392\u884c
\n }
\n };<\/p>\nws.onclose = () => {
\n document.getElementById('wsStatus').textContent = '\u5df2\u65ad\u5f00';
\n setTimeout(connectWebSocket, 5000); \/\/ 5\u79d2\u540e\u81ea\u52a8\u91cd\u8fde
\n };
\n} <\/p>\n\u524d\u7aef\u5173\u952e\u70b9：<\/p>\n
- \n
- \u81ea\u52a8\u9009\u62e9 ws:\/\/ \u6216 wss:\/\/ \u534f\u8bae，\u9002\u914d HTTP\/HTTPS \u90e8\u7f72<\/li>\n<\/ul>\n
- \n
- \u6536\u5230\u6d88\u606f\u540e\u9664\u4e86\u63d2\u5165\u6d3b\u52a8\u6d41，\u8fd8\u4e3b\u52a8\u62c9\u53d6\u6700\u65b0\u7684\u7edf\u8ba1\u6570\u636e\u548c\u7528\u6237\u5217\u8868（\u56e0\u4e3a WebSocket \u53ea\u63a8\u9001"\u589e\u91cf\u4e8b\u4ef6"，\u805a\u5408\u7edf\u8ba1\u9700\u8981\u91cd\u65b0\u67e5\u8be2）<\/li>\n<\/ul>\n
- \n
- \u65ad\u7ebf\u540e 5 \u79d2\u81ea\u52a8\u91cd\u8fde，\u4fdd\u8bc1\u957f\u65f6\u95f4\u6253\u5f00\u4eea\u8868\u76d8\u65f6\u7684\u8fde\u63a5\u53ef\u9760\u6027<\/li>\n<\/ul>\n
4.5 \u591a\u8f6e\u5bf9\u8bdd\u4e0a\u4e0b\u6587\u7ba1\u7406<\/h4>\n
\u5bf9\u8bdd\u670d\u52a1\u652f\u6301\u591a\u8f6e\u5bf9\u8bdd，\u5173\u952e\u5728\u4e8e\u5982\u4f55\u6784\u5efa\u4e0a\u4e0b\u6587：<\/p>\n
# app\/routers\/chat.py<\/p>\n
@router.post("")
\nasync def chat(req: ChatRequest, db: AsyncSession = Depends(get_db)):
\n history: list[dict] = []<\/p>\nif req.session_id:
\n # \u4ece\u6570\u636e\u5e93\u52a0\u8f7d\u8be5\u4f1a\u8bdd\u7684\u5386\u53f2\u6d88\u606f
\n result = await db.execute(
\n select(Message)
\n .where(Message.session_id == req.session_id)
\n .order_by(Message.id)
\n )
\n msgs = result.scalars().all()
\n # \u53ea\u53d6\u6700\u8fd1 10 \u6761\u4f5c\u4e3a\u4e0a\u4e0b\u6587，\u63a7\u5236 Token \u6d88\u8017
\n history = [
\n {"role": m.role, "content": m.content}
\n for m in msgs[-10:]
\n ]<\/p>\nresult = await tracker.track_chat(
\n db=db, user_id=req.user_id, user_message=req.message,
\n session_id=req.session_id, history=history,
\n )
\n return ChatResponse(**result) <\/p>\n\u5173\u952e\u8bbe\u8ba1：<\/p>\n
- \n
- \u4e0a\u4e0b\u6587\u4ece\u6570\u636e\u5e93\u6301\u4e45\u5316\u52a0\u8f7d，\u800c\u975e\u4f9d\u8d56\u5185\u5b58\u2014\u2014\u670d\u52a1\u91cd\u542f\u540e\u5bf9\u8bdd\u4e0d\u4e22\u5931<\/li>\n<\/ul>\n
- \n
- msgs[-10:] \u53ea\u53d6\u6700\u8fd1 10 \u6761\u6d88\u606f，\u907f\u514d\u4e0a\u4e0b\u6587\u65e0\u9650\u81a8\u80c0\u5bfc\u81f4 Token \u6d88\u8017\u5931\u63a7<\/li>\n<\/ul>\n
- \n
- session_id \u9996\u6b21\u8bf7\u6c42\u65f6\u4e3a None，\u7531 tracker.ensure_session() \u81ea\u52a8\u521b\u5efa\u5e76\u8fd4\u56de，\u540e\u7eed\u8bf7\u6c42\u643a\u5e26\u6b64 ID \u5373\u53ef\u5ef6\u7eed\u5bf9\u8bdd<\/li>\n<\/ul>\n
4.6 \u4eea\u8868\u76d8\u805a\u5408\u67e5\u8be2<\/h4>\n
\u4eea\u8868\u76d8\u7684\u7edf\u8ba1\u63a5\u53e3\u5927\u91cf\u4f7f\u7528 SQL \u805a\u5408\u51fd\u6570，\u76f4\u63a5\u5728\u6570\u636e\u5e93\u5c42\u9762\u5b8c\u6210\u8ba1\u7b97，\u907f\u514d\u628a\u5168\u91cf\u6570\u636e\u62c9\u5230 Python \u4e2d\u5904\u7406：<\/p>\n
# \u603b\u89c8\u7edf\u8ba1 \u2014\u2014 \u4e00\u6b21\u8bf7\u6c42\u62ff\u5230 7 \u4e2a\u6307\u6807
\n@router.get("\/stats")
\nasync def get_stats(db: AsyncSession = Depends(get_db)):
\n total_users = await db.scalar(select(func.count(User.id)))
\n total_cost = await db.scalar(
\n select(func.coalesce(func.sum(Message.cost), 0.0))
\n )
\n avg_latency = await db.scalar(
\n select(func.coalesce(func.avg(Message.latency_ms), 0.0))
\n .where(Message.role == "assistant")
\n )
\n active_24h = await db.scalar(
\n select(func.count(func.distinct(ChatSession.user_id)))
\n .where(ChatSession.updated_at >= cutoff)
\n )
\n …
\n# \u7528\u6237\u7528\u91cf\u6392\u884c \u2014\u2014 \u4e09\u8868 JOIN + GROUP BY
\nstmt = (
\n select(
\n ChatSession.user_id,
\n User.name.label("name"),
\n func.count(Message.id).label("message_count"),
\n func.sum(Message.tokens_input).label("tokens_input"),
\n func.sum(Message.cost).label("total_cost"),
\n func.avg(Message.latency_ms).label("avg_latency_ms"),
\n )
\n .select_from(Message)
\n .join(ChatSession, Message.session_id == ChatSession.session_id)
\n .join(User, ChatSession.user_id == User.user_id)
\n .where(Message.role == "assistant")
\n .group_by(ChatSession.user_id, User.name)
\n .order_by(desc("total_cost"))
\n)
\n# 24\u5c0f\u65f6\u65f6\u95f4\u7ebf \u2014\u2014 \u6309\u5c0f\u65f6\u805a\u5408
\nstmt = (
\n select(
\n func.strftime("%Y-%m-%dT%H:00:00", Message.created_at).label("ts"),
\n func.count(Message.id).label("messages"),
\n func.sum(Message.tokens_input + Message.tokens_output).label("tokens"),
\n func.sum(Message.cost).label("cost"),
\n )
\n .where(Message.created_at >= cutoff)
\n .group_by("ts")
\n .order_by("ts")
\n) <\/p>\n\u5173\u952e\u70b9：<\/p>\n
- \n
- func.coalesce(sum(…), 0) \u786e\u4fdd\u65e0\u6570\u636e\u65f6\u8fd4\u56de 0 \u800c\u975e None<\/li>\n<\/ul>\n
- \n
- func.distinct() \u7528\u4e8e\u7edf\u8ba1\u53bb\u91cd\u6307\u6807（\u5982 24h \u6d3b\u8dc3\u7528\u6237\u6570）<\/li>\n<\/ul>\n
- \n
- func.strftime() \u5728 SQLite \u4e2d\u505a\u65f6\u95f4\u622a\u65ad\u805a\u5408，\u6309\u5c0f\u65f6\u5206\u7ec4<\/li>\n<\/ul>\n
- \n
- \u5ef6\u8fdf\u5e73\u5747\u503c\u53ea\u7edf\u8ba1 role == "assistant" \u7684\u6d88\u606f，\u56e0\u4e3a\u7528\u6237\u6d88\u606f\u6ca1\u6709 API \u8c03\u7528\u5ef6\u8fdf<\/li>\n<\/ul>\n
4.7 \u524d\u7aef\u53ef\u89c6\u5316：Chart.js \u8d8b\u52bf\u56fe<\/h4>\n
\u4eea\u8868\u76d8\u4f7f\u7528 Chart.js \u7ed8\u5236 Token \u548c\u8d39\u7528\u7684\u65f6\u95f4\u8d8b\u52bf\u56fe：<\/p>\n
async function loadTimeline() {
\n const res = await fetch(`${API}\/timeline?hours=24`);
\n const points = await res.json();<\/p>\nconst labels = points.map(p => {
\n const d = new Date(p.timestamp);
\n return d.getHours().toString().padStart(2, '0') + ':00';
\n });<\/p>\ntokenChart = new Chart(tokenCtx, {
\n type: 'line',
\n data: {
\n labels: labels,
\n datasets: [{
\n label: 'Tokens',
\n data: points.map(p => p.tokens),
\n borderColor: '#4f6ef7',
\n backgroundColor: 'rgba(79,110,247,0.08)',
\n fill: true,
\n tension: 0.3, \/\/ \u5e73\u6ed1\u66f2\u7ebf
\n pointRadius: 2,
\n }]
\n },
\n options: {
\n responsive: true,
\n maintainAspectRatio: false,
\n plugins: { legend: { display: false } },
\n }
\n });
\n} <\/p>\n\u65f6\u95f4\u7ebf\u6bcf 60 \u79d2\u81ea\u52a8\u5237\u65b0\u4e00\u6b21，\u914d\u5408 WebSocket \u7684\u5b9e\u65f6\u63a8\u9001，\u5f62\u6210"\u5b9e\u65f6\u4e8b\u4ef6\u6d41 + \u5b9a\u65f6\u8d8b\u52bf\u5237\u65b0"\u7684\u53cc\u5c42\u66f4\u65b0\u673a\u5236\u3002<\/p>\n
4.8 \u914d\u7f6e\u7ba1\u7406\u4e0e\u5b9a\u4ef7\u6a21\u578b<\/h4>\n
\u4f7f\u7528 pydantic-settings \u7ba1\u7406\u914d\u7f6e，\u652f\u6301\u73af\u5883\u53d8\u91cf\u6ce8\u5165：<\/p>\n
# app\/config.py<\/p>\n
class Settings(BaseSettings):
\n deepseek_api_key: str = os.getenv("DEEPSEEK_API_KEY", "")
\n deepseek_base_url: str = "https:\/\/api.deepseek.com"
\n deepseek_model: str = "deepseek-chat"<\/p>\n# DeepSeek \u5b9a\u4ef7（\u5143\/\u767e\u4e07 Token）
\n price_input_per_million: float = 1.0 # \u8f93\u5165
\n price_output_per_million: float = 2.0 # \u8f93\u51fa<\/p>\ndatabase_url: str = "sqlite+aiosqlite:\/\/\/.\/dashboard.db"
\n host: str = "0.0.0.0"
\n port: int = 8000 <\/p>\n\u8d39\u7528\u8ba1\u7b97\u903b\u8f91：<\/p>\n
def calculate_cost(self, tokens_input: int, tokens_output: int) -> float:
\n cost_in = tokens_input \/ 1_000_000 * settings.price_input_per_million
\n cost_out = tokens_output \/ 1_000_000 * settings.price_output_per_million
\n return round(cost_in + cost_out, 6) <\/p>\n\u5207\u6362\u6a21\u578b\u65f6\u53ea\u9700\u4fee\u6539 deepseek_model \u548c\u5b9a\u4ef7\u53c2\u6570，\u65e0\u9700\u6539\u4ee3\u7801\u3002<\/p>\n
\n\u4e94\u3001API \u63a5\u53e3\u4e00\u89c8<\/h3>\n
\u5bf9\u8bdd\u670d\u52a1<\/h4>\n
\n\n
\n \n \u65b9\u6cd5<\/p>\n<\/td>\n
\n \u8def\u5f84<\/p>\n<\/td>\n
\n \u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n \n POST<\/p>\n<\/td>\n
\n \/api\/chat<\/p>\n<\/td>\n
\n \u53d1\u9001\u6d88\u606f，\u83b7\u53d6 AI \u56de\u590d<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/chat\/sessions<\/p>\n<\/td>\n
\n \u83b7\u53d6\u4f1a\u8bdd\u5217\u8868（\u652f\u6301 user_id \u8fc7\u6ee4）<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/chat\/sessions\/{id}<\/p>\n<\/td>\n
\n \u83b7\u53d6\u4f1a\u8bdd\u8be6\u60c5（\u542b\u5b8c\u6574\u6d88\u606f\u5386\u53f2）<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
POST \/api\/chat \u8bf7\u6c42\u4f53：<\/p>\n
{
\n "message": "\u5e2e\u6211\u5199\u4e00\u9996\u5173\u4e8e\u79cb\u5929\u7684\u8bd7",
\n "user_id": "zhangsan",
\n "user_name": "\u5f20\u4e09",
\n "session_id": null
\n} <\/p>\n\u54cd\u5e94：<\/p>\n
{
\n "session_id": "sess_a1b2c3d4e5f6",
\n "reply": "\u79cb\u98ce\u8d77\u5904\u53f6\u7eb7\u98de…",
\n "model": "deepseek-chat",
\n "tokens_input": 52,
\n "tokens_output": 128,
\n "cost": 0.000308,
\n "latency_ms": 1840
\n} <\/p>\n\u4eea\u8868\u76d8\u670d\u52a1<\/h4>\n
\n\n
\n \n \u65b9\u6cd5<\/p>\n<\/td>\n
\n \u8def\u5f84<\/p>\n<\/td>\n
\n \u8bf4\u660e<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/dashboard\/stats<\/p>\n<\/td>\n
\n \u603b\u89c8\u7edf\u8ba1（7 \u4e2a\u6307\u6807）<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/dashboard\/users<\/p>\n<\/td>\n
\n \u7528\u6237\u7528\u91cf\u6392\u884c<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/dashboard\/timeline<\/p>\n<\/td>\n
\n 24 \u5c0f\u65f6\u65f6\u95f4\u7ebf（\u6309\u5c0f\u65f6\u805a\u5408）<\/p>\n<\/td>\n<\/tr>\n
\n \n GET<\/p>\n<\/td>\n
\n \/api\/dashboard\/recent-activity<\/p>\n<\/td>\n
\n \u6700\u8fd1 20 \u6761\u6d3b\u52a8<\/p>\n<\/td>\n<\/tr>\n
\n \n WS<\/p>\n<\/td>\n
\n \/api\/dashboard\/ws<\/p>\n<\/td>\n
\n WebSocket \u5b9e\u65f6\u63a8\u9001\u7aef\u70b9<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\u516d\u3001\u6570\u636e\u6d41\u5168\u666f<\/h3>\n
\u628a\u6240\u6709\u73af\u8282\u4e32\u8d77\u6765，\u4e00\u6b21\u5b8c\u6574\u7684\u5bf9\u8bdd\u8bf7\u6c42\u7ecf\u8fc7\u4ee5\u4e0b\u6b65\u9aa4：<\/p>\n
1. \u7528\u6237\u5728 \/chat \u9875\u9762\u8f93\u5165\u6d88\u606f
\n2. chat.js \u53d1\u9001 POST \/api\/chat
\n3. chat.py \u8def\u7531\u6536\u5230\u8bf7\u6c42，\u4ece DB \u52a0\u8f7d\u6700\u8fd1 10 \u6761\u5386\u53f2\u6d88\u606f
\n4. \u8c03\u7528 tracker.track_chat():
\n a. ensure_user() \u2192 \u521b\u5efa\u6216\u66f4\u65b0\u7528\u6237\u8bb0\u5f55
\n b. ensure_session() \u2192 \u521b\u5efa\u6216\u66f4\u65b0\u4f1a\u8bdd\u8bb0\u5f55
\n c. record_message() \u2192 \u5b58\u50a8\u7528\u6237\u6d88\u606f
\n d. deepseek_service.chat() \u2192 \u5f02\u6b65\u8c03\u7528 DeepSeek API
\n e. calculate_cost() \u2192 \u8ba1\u7b97\u8d39\u7528
\n f. record_message() \u2192 \u5b58\u50a8 AI \u56de\u590d（\u542b Token\/\u8d39\u7528\/\u5ef6\u8fdf）
\n g. db.commit() \u2192 \u63d0\u4ea4\u4e8b\u52a1
\n h. ws_manager.broadcast() \u2192 WebSocket \u63a8\u9001\u4e8b\u4ef6
\n5. \u8fd4\u56de JSON \u54cd\u5e94\u7ed9 chat.js
\n6. chat.js \u66f4\u65b0\u5bf9\u8bdd\u754c\u9762，\u663e\u793a\u56de\u590d\u548c\u7528\u91cf
\n7. dashboard.js \u6536\u5230 WebSocket \u6d88\u606f:
\n a. \u63d2\u5165\u6d3b\u52a8\u6d41\u9876\u90e8
\n b. \u5237\u65b0\u7edf\u8ba1\u5361\u7247
\n c. \u5237\u65b0\u7528\u6237\u6392\u884c <\/p>\n\u6574\u4e2a\u8fc7\u7a0b\u4e2d，DeepSeek API \u8c03\u7528\u662f\u6700\u6162\u7684\u4e00\u73af（\u901a\u5e38 1-3 \u79d2），\u5176\u4ed6\u73af\u8282\u90fd\u662f\u6beb\u79d2\u7ea7\u3002\u7531\u4e8e\u5168\u90e8\u5f02\u6b65\u5b9e\u73b0，\u5373\u4f7f\u6709\u591a\u4e2a\u7528\u6237\u540c\u65f6\u5bf9\u8bdd，\u4e5f\u4e0d\u4f1a\u4e92\u76f8\u963b\u585e\u3002<\/p>\n
\n\u4e03\u3001\u6269\u5c55\u65b9\u5411<\/h3>\n
\u8fd9\u4e2a Demo \u662f\u4e00\u4e2a\u6700\u5c0f\u53ef\u8fd0\u884c\u7248\u672c，\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5b9e\u7528\u7684\u6269\u5c55\u65b9\u5411：<\/p>\n
\n\n
\n \n \u65b9\u5411<\/p>\n<\/td>\n
\n \u505a\u6cd5<\/p>\n<\/td>\n<\/tr>\n
\n \n \u6d41\u5f0f\u8f93\u51fa<\/p>\n<\/td>\n
\n \u4f7f\u7528 DeepSeek \u7684 stream=True + FastAPI \u7684 StreamingResponse，\u8ba9\u7528\u6237\u9010\u5b57\u770b\u5230\u56de\u590d<\/p>\n<\/td>\n<\/tr>\n
\n \n \u7528\u6237\u8ba4\u8bc1<\/p>\n<\/td>\n
\n \u52a0\u5165 JWT \u8ba4\u8bc1，user_id \u4ece Token \u4e2d\u63d0\u53d6\u800c\u975e\u524d\u7aef\u4f20\u5165<\/p>\n<\/td>\n<\/tr>\n
\n \n \u6570\u636e\u5e93\u8fc1\u79fb<\/p>\n<\/td>\n
\n \u5f15\u5165 Alembic \u7ba1\u7406\u8868\u7ed3\u6784\u53d8\u66f4，\u652f\u6301\u5e73\u6ed1\u5347\u7ea7<\/p>\n<\/td>\n<\/tr>\n
\n \n \u591a\u6a21\u578b\u652f\u6301<\/p>\n<\/td>\n
\n \u5728 config.py \u4e2d\u914d\u7f6e\u591a\u4e2a\u6a21\u578b，\u524d\u7aef\u53ef\u9009\u62e9，\u7edf\u8ba1\u6309\u6a21\u578b\u5206\u7ec4<\/p>\n<\/td>\n<\/tr>\n
\n \n \u544a\u8b66\u673a\u5236<\/p>\n<\/td>\n
\n \u5f53\u67d0\u7528\u6237 Token \u6d88\u8017\u8d85\u8fc7\u9608\u503c\u65f6，\u901a\u8fc7 WebSocket \u63a8\u9001\u544a\u8b66\u4e8b\u4ef6<\/p>\n<\/td>\n<\/tr>\n
\n \n \u6570\u636e\u5bfc\u51fa<\/p>\n<\/td>\n
\n \u589e\u52a0\u5bfc\u51fa CSV\/Excel \u63a5\u53e3，\u65b9\u4fbf\u79bb\u7ebf\u5206\u6790<\/p>\n<\/td>\n<\/tr>\n
\n \n \u90e8\u7f72\u4e0a\u7ebf<\/p>\n<\/td>\n
\n \u7528 Gunicorn + Uvicorn worker \u90e8\u7f72，\u6570\u636e\u5e93\u5207\u6362\u4e3a PostgreSQL<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n\u516b\u3001\u603b\u7ed3<\/h3>\n
\u8fd9\u4e2a Demo \u5c55\u793a\u4e86\u6784\u5efa AI \u5e94\u7528\u76d1\u63a7\u4f53\u7cfb\u7684\u51e0\u4e2a\u6838\u5fc3\u6a21\u5f0f：<\/p>\n
- API \u517c\u5bb9\u590d\u7528：DeepSeek \u517c\u5bb9 OpenAI \u63a5\u53e3，\u76f4\u63a5\u7528 openai SDK \u5373\u53ef\u96c6\u6210，\u96f6\u989d\u5916\u5b66\u4e60\u6210\u672c<\/li>\n
- \u5168\u94fe\u8def\u5f02\u6b65：\u4ece\u6570\u636e\u5e93（aiosqlite）\u5230 HTTP（FastAPI）\u5230 LLM \u8c03\u7528（AsyncOpenAI），\u5168\u5f02\u6b65\u5b9e\u73b0，\u9ad8\u5e76\u53d1\u53cb\u597d<\/li>\n
- \u8ffd\u8e2a\u5d4c\u5165\u5f0f\u8bbe\u8ba1：\u7528\u91cf\u8ffd\u8e2a\u903b\u8f91\u5185\u5d4c\u5728\u5bf9\u8bdd\u6d41\u7a0b\u4e2d（track_chat \u65b9\u6cd5），\u4e1a\u52a1\u4ee3\u7801\u65e0\u9700\u611f\u77e5<\/li>\n
- WebSocket \u5b9e\u65f6\u63a8\u9001：\u8f7b\u91cf\u7ea7\u7684\u8fde\u63a5\u7ba1\u7406\u5668 + \u5e7f\u64ad\u6a21\u5f0f，\u5b9e\u73b0\u4eea\u8868\u76d8\u7684\u5b9e\u65f6\u66f4\u65b0<\/li>\n
- SQL \u805a\u5408\u4e0b\u6c89：\u7edf\u8ba1\u8ba1\u7b97\u76f4\u63a5\u7528 SQL \u805a\u5408\u51fd\u6570\u5b8c\u6210，\u907f\u514d\u628a\u6570\u636e\u62c9\u5230\u5e94\u7528\u5c42\u5904\u7406<\/li>\n
\u9879\u76ee\u7684\u6838\u5fc3\u4ef7\u503c\u5728\u4e8e：\u5b83\u628a"AI \u5bf9\u8bdd"\u548c"\u7528\u91cf\u76d1\u63a7"\u8fd9\u4e24\u4ef6\u4e8b\u7528\u6700\u5c0f\u4ee3\u4ef7\u4e32\u8054\u8d77\u6765\u4e86\u3002\u5982\u679c\u4f60\u6b63\u5728\u505a\u4e00\u4e2a\u63a5\u5165\u5927\u6a21\u578b\u7684\u5e94\u7528，\u8fd9\u4e2a\u67b6\u6784\u53ef\u4ee5\u76f4\u63a5\u4f5c\u4e3a\u8d77\u70b9\u3002<\/p>\n
\u4e5d\u3001\u6e90\u4ee3\u7801\u5730\u5740<\/h3>\n
Dashboard<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，\\”\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48\\”\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48
\n\u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237 <\/p>\n","protected":false},"author":2,"featured_media":85305,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[72,947,50],"topic":[],"class_list":["post-85307","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-fastapi","tag-websocket","tag-50"],"yoast_head":"\n\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.wsisp.com\/helps\/85307.html\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"og:description\" content=\"\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，"\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48"\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48 \u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.wsisp.com\/helps\/85307.html\" \/>\n<meta property=\"og:site_name\" content=\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-27T03:17:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdac59de8.png\" \/>\n<meta name=\"author\" content=\"admin\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"admin\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"8 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html\",\"url\":\"https:\/\/www.wsisp.com\/helps\/85307.html\",\"name\":\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"isPartOf\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\"},\"datePublished\":\"2026-07-27T03:17:01+00:00\",\"dateModified\":\"2026-07-27T03:17:01+00:00\",\"author\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.wsisp.com\/helps\/85307.html\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.wsisp.com\/helps\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#website\",\"url\":\"https:\/\/www.wsisp.com\/helps\/\",\"name\":\"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3\",\"description\":\"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41\",\"name\":\"admin\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"zh-Hans\",\"@id\":\"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"contentUrl\":\"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery\",\"caption\":\"admin\"},\"sameAs\":[\"http:\/\/wp.wsisp.com\"],\"url\":\"https:\/\/www.wsisp.com\/helps\/author\/admin\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.wsisp.com\/helps\/85307.html","og_locale":"zh_CN","og_type":"article","og_title":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","og_description":"\u5f53\u4f60\u7684 AI \u5e94\u7528\u5f00\u59cb\u6709\u771f\u5b9e\u7528\u6237\u65f6，\"\u6a21\u578b\u56de\u590d\u4e86\u4ec0\u4e48\"\u5df2\u7ecf\u4e0d\u591f\u4e86\u2014\u2014\u4f60\u9700\u8981\u77e5\u9053\u8c01\u5728\u7528\u3001\u7528\u4e86\u591a\u5c11 Token\u3001\u82b1\u4e86\u591a\u5c11\u94b1\u3001\u54cd\u5e94\u6709\u591a\u5feb\u3002\u672c\u6587\u901a\u8fc7\u4e00\u4e2a\u5b8c\u6574\u7684 Demo \u9879\u76ee，\u5c55\u793a\u5982\u4f55\u7528 FastAPI DeepSeek WebSocket \u6784\u5efa\u4e00\u4e2a\u5e26\u5b9e\u65f6\u76d1\u63a7\u4eea\u8868\u76d8\u7684 AI \u5bf9\u8bdd\u670d\u52a1\u3002 \u4e00\u3001\u8fd9\u4e2a Demo \u505a\u4e86\u4ec0\u4e48 \u9879\u76ee\u63d0\u4f9b\u4e24\u4e2a\u670d\u52a1，\u8dd1\u5728\u540c\u4e00\u4e2a FastAPI \u5e94\u7528\u91cc： \u670d\u52a1 \u9762\u5411 \u529f\u80fd AI \u5bf9\u8bdd\u670d\u52a1 \u7ec8\u7aef\u7528\u6237","og_url":"https:\/\/www.wsisp.com\/helps\/85307.html","og_site_name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","article_published_time":"2026-07-27T03:17:01+00:00","og_image":[{"url":"https:\/\/www.wsisp.com\/helps\/wp-content\/uploads\/2026\/07\/20260727031700-6a66cdac59de8.png"}],"author":"admin","twitter_card":"summary_large_image","twitter_misc":{"\u4f5c\u8005":"admin","\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4":"8 \u5206"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.wsisp.com\/helps\/85307.html","url":"https:\/\/www.wsisp.com\/helps\/85307.html","name":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5 - \u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","isPartOf":{"@id":"https:\/\/www.wsisp.com\/helps\/#website"},"datePublished":"2026-07-27T03:17:01+00:00","dateModified":"2026-07-27T03:17:01+00:00","author":{"@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41"},"breadcrumb":{"@id":"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb"},"inLanguage":"zh-Hans","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.wsisp.com\/helps\/85307.html"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/www.wsisp.com\/helps\/85307.html#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"\u9996\u9875","item":"https:\/\/www.wsisp.com\/helps"},{"@type":"ListItem","position":2,"name":"\u4ece\u96f6\u6784\u5efa AI \u5bf9\u8bdd\u76d1\u63a7\u4eea\u8868\u76d8\uff1aLangfuse + Langchain + DeepSeek + FastAPI + WebSocket \u5b9e\u65f6\u67b6\u6784\u5b9e\u8df5"}]},{"@type":"WebSite","@id":"https:\/\/www.wsisp.com\/helps\/#website","url":"https:\/\/www.wsisp.com\/helps\/","name":"\u7f51\u7855\u4e92\u8054\u5e2e\u52a9\u4e2d\u5fc3","description":"\u9999\u6e2f\u670d\u52a1\u5668_\u9999\u6e2f\u4e91\u670d\u52a1\u5668\u8d44\u8baf_\u670d\u52a1\u5668\u5e2e\u52a9\u6587\u6863_\u670d\u52a1\u5668\u6559\u7a0b","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.wsisp.com\/helps\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"zh-Hans"},{"@type":"Person","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/358e386c577a3ab51c4493330a20ad41","name":"admin","image":{"@type":"ImageObject","inLanguage":"zh-Hans","@id":"https:\/\/www.wsisp.com\/helps\/#\/schema\/person\/image\/","url":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","contentUrl":"https:\/\/gravatar.wp-china-yes.net\/avatar\/?s=96&d=mystery","caption":"admin"},"sameAs":["http:\/\/wp.wsisp.com"],"url":"https:\/\/www.wsisp.com\/helps\/author\/admin"}]}},"_links":{"self":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/85307","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/comments?post=85307"}],"version-history":[{"count":0,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/posts\/85307\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media\/85305"}],"wp:attachment":[{"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/media?parent=85307"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/categories?post=85307"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/tags?post=85307"},{"taxonomy":"topic","embeddable":true,"href":"https:\/\/www.wsisp.com\/helps\/wp-json\/wp\/v2\/topic?post=85307"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- \u5ef6\u8fdf\u5e73\u5747\u503c\u53ea\u7edf\u8ba1 role == "assistant" \u7684\u6d88\u606f，\u56e0\u4e3a\u7528\u6237\u6d88\u606f\u6ca1\u6709 API \u8c03\u7528\u5ef6\u8fdf<\/li>\n<\/ul>\n
- func.strftime() \u5728 SQLite \u4e2d\u505a\u65f6\u95f4\u622a\u65ad\u805a\u5408，\u6309\u5c0f\u65f6\u5206\u7ec4<\/li>\n<\/ul>\n
- func.distinct() \u7528\u4e8e\u7edf\u8ba1\u53bb\u91cd\u6307\u6807（\u5982 24h \u6d3b\u8dc3\u7528\u6237\u6570）<\/li>\n<\/ul>\n
- func.coalesce(sum(…), 0) \u786e\u4fdd\u65e0\u6570\u636e\u65f6\u8fd4\u56de 0 \u800c\u975e None<\/li>\n<\/ul>\n
- session_id \u9996\u6b21\u8bf7\u6c42\u65f6\u4e3a None，\u7531 tracker.ensure_session() \u81ea\u52a8\u521b\u5efa\u5e76\u8fd4\u56de，\u540e\u7eed\u8bf7\u6c42\u643a\u5e26\u6b64 ID \u5373\u53ef\u5ef6\u7eed\u5bf9\u8bdd<\/li>\n<\/ul>\n
- msgs[-10:] \u53ea\u53d6\u6700\u8fd1 10 \u6761\u6d88\u606f，\u907f\u514d\u4e0a\u4e0b\u6587\u65e0\u9650\u81a8\u80c0\u5bfc\u81f4 Token \u6d88\u8017\u5931\u63a7<\/li>\n<\/ul>\n
- \u4e0a\u4e0b\u6587\u4ece\u6570\u636e\u5e93\u6301\u4e45\u5316\u52a0\u8f7d，\u800c\u975e\u4f9d\u8d56\u5185\u5b58\u2014\u2014\u670d\u52a1\u91cd\u542f\u540e\u5bf9\u8bdd\u4e0d\u4e22\u5931<\/li>\n<\/ul>\n
- \u65ad\u7ebf\u540e 5 \u79d2\u81ea\u52a8\u91cd\u8fde，\u4fdd\u8bc1\u957f\u65f6\u95f4\u6253\u5f00\u4eea\u8868\u76d8\u65f6\u7684\u8fde\u63a5\u53ef\u9760\u6027<\/li>\n<\/ul>\n
- \u6536\u5230\u6d88\u606f\u540e\u9664\u4e86\u63d2\u5165\u6d3b\u52a8\u6d41，\u8fd8\u4e3b\u52a8\u62c9\u53d6\u6700\u65b0\u7684\u7edf\u8ba1\u6570\u636e\u548c\u7528\u6237\u5217\u8868（\u56e0\u4e3a WebSocket \u53ea\u63a8\u9001"\u589e\u91cf\u4e8b\u4ef6"，\u805a\u5408\u7edf\u8ba1\u9700\u8981\u91cd\u65b0\u67e5\u8be2）<\/li>\n<\/ul>\n
- \u81ea\u52a8\u9009\u62e9 ws:\/\/ \u6216 wss:\/\/ \u534f\u8bae，\u9002\u914d HTTP\/HTTPS \u90e8\u7f72<\/li>\n<\/ul>\n
- ensure_ascii=False \u786e\u4fdd\u4e2d\u6587\u6d88\u606f\u6b63\u5e38\u4f20\u8f93<\/li>\n<\/ul>\n
- \u53d1\u9001\u5931\u8d25\u7684\u8fde\u63a5\u88ab\u6536\u96c6\u5230 dead \u5217\u8868，\u5e7f\u64ad\u7ed3\u675f\u540e\u7edf\u4e00\u6e05\u7406，\u907f\u514d\u904d\u5386\u8fc7\u7a0b\u4e2d\u4fee\u6539\u5217\u8868<\/li>\n<\/ul>\n
- broadcast \u5728\u6ca1\u6709\u8fde\u63a5\u65f6\u76f4\u63a5\u8fd4\u56de，\u4e0d\u5f71\u54cd\u5bf9\u8bdd\u670d\u52a1\u6027\u80fd<\/li>\n<\/ul>\n
- \u8d39\u7528\u8ba1\u7b97：\u57fa\u4e8e DeepSeek \u5b98\u65b9\u5b9a\u4ef7（\u8f93\u5165 1 \u5143\/\u767e\u4e07 Token，\u8f93\u51fa 2 \u5143\/\u767e\u4e07 Token），\u5728 config.py \u4e2d\u53ef\u914d\u7f6e<\/li>\n<\/ul>\n
- broadcast \u5728 commit \u4e4b\u540e：\u5982\u679c\u5e7f\u64ad\u5931\u8d25（\u5982 WebSocket \u65ad\u5f00），\u4e0d\u5f71\u54cd\u6570\u636e\u6301\u4e45\u5316<\/li>\n<\/ul>\n
- commit \u5728 broadcast \u4e4b\u524d：\u786e\u4fdd\u63a8\u9001\u5230\u4eea\u8868\u76d8\u7684\u6570\u636e\u5df2\u7ecf\u6301\u4e45\u5316，\u4e0d\u4f1a\u51fa\u73b0"\u4eea\u8868\u76d8\u663e\u793a\u4e86\u4f46\u6570\u636e\u5e93\u6ca1\u6709"\u7684\u4e0d\u4e00\u81f4<\/li>\n<\/ul>\n
- \u5148\u8bb0\u5f55\u540e\u63d0\u4ea4：\u7528\u6237\u6d88\u606f\u548c AI \u56de\u590d\u5728\u540c\u4e00\u4e2a\u4e8b\u52a1\u4e2d\u5199\u5165，\u8981\u4e48\u90fd\u6210\u529f，\u8981\u4e48\u90fd\u56de\u6eda<\/li>\n<\/ul>\n
- \u4f7f\u7528 SQLite + aiosqlite \u4f5c\u4e3a\u96f6\u914d\u7f6e\u5b58\u50a8，\u751f\u4ea7\u73af\u5883\u53ef\u65e0\u7f1d\u5207\u6362\u4e3a PostgreSQL（\u6539\u8fde\u63a5\u5b57\u7b26\u4e32\u5373\u53ef）<\/li>\n<\/ul>\n
- get_db() \u662f\u4e00\u4e2a\u5f02\u6b65\u751f\u6210\u5668，\u901a\u8fc7 FastAPI \u7684 Depends \u6ce8\u5165\u5230\u6bcf\u4e2a\u8def\u7531\u51fd\u6570\u4e2d，\u8bf7\u6c42\u7ed3\u675f\u81ea\u52a8\u5173\u95ed\u4f1a\u8bdd<\/li>\n<\/ul>\n
- expire_on_commit=False：commit \u4e4b\u540e ORM \u5bf9\u8c61\u4ecd\u7136\u53ef\u7528（\u9ed8\u8ba4\u4e3a True \u4f1a\u5bfc\u81f4 commit \u540e\u8bbf\u95ee\u5c5e\u6027\u89e6\u53d1\u989d\u5916\u67e5\u8be2）<\/li>\n<\/ul>\n
- \u8fd4\u56de\u503c\u7528 dataclass \u5c01\u88c5，\u7c7b\u578b\u6e05\u6670，\u4fbf\u4e8e\u4e0b\u6e38\u6d88\u8d39<\/li>\n<\/ul>\n
- \u4ece response.usage \u76f4\u63a5\u63d0\u53d6 Token \u7528\u91cf，\u65e0\u9700\u81ea\u5df1\u5b9e\u73b0\u5206\u8bcd\u8ba1\u6570<\/li>\n<\/ul>\n
- time.monotonic() \u800c\u975e time.time() \u6d4b\u91cf\u5ef6\u8fdf\u2014\u2014\u524d\u8005\u4e0d\u53d7\u7cfb\u7edf\u65f6\u949f\u8c03\u6574\u5f71\u54cd<\/li>\n<\/ul>\n
- DeepSeek API Key（\u5728 platform.deepseek.com \u83b7\u53d6）<\/li>\n<\/ul>\n