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92 lines
2.9 KiB
92 lines
2.9 KiB
import inspect
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import json
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import logging
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import os
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import warnings
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from logging.handlers import RotatingFileHandler
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import fastapi
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import uvicorn
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from fastapi import FastAPI
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from sse_starlette import EventSourceResponse
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from starlette.staticfiles import StaticFiles
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from Util.LightRagUtil import initialize_rag
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from lightrag import QueryParam
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# 初始化日志
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logger = logging.getLogger(__name__)
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logger.setLevel(logging.INFO)
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# 配置日志处理器
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log_file = os.path.join(os.path.dirname(__file__), 'Logs', 'app.log')
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os.makedirs(os.path.dirname(log_file), exist_ok=True)
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# 文件处理器
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file_handler = RotatingFileHandler(
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log_file, maxBytes=1024 * 1024, backupCount=5, encoding='utf-8')
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file_handler.setFormatter(logging.Formatter(
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'%(asctime)s - %(name)s - %(levelname)s - %(message)s'))
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# 控制台处理器
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console_handler = logging.StreamHandler()
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console_handler.setFormatter(logging.Formatter(
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'%(asctime)s - %(name)s - %(levelname)s - %(message)s'))
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logger.addHandler(file_handler)
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logger.addHandler(console_handler)
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async def lifespan(app: FastAPI):
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# 抑制HTTPS相关警告
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warnings.filterwarnings('ignore', message='Connecting to .* using TLS with verify_certs=False is insecure')
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warnings.filterwarnings('ignore', message='Unverified HTTPS request is being made to host')
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yield
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app = FastAPI(lifespan=lifespan)
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# 挂载静态文件目录
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app.mount("/static", StaticFiles(directory="Static"), name="static")
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@app.post("/api/rag", response_model=None)
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async def rag(request: fastapi.Request):
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data = await request.json()
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query = data.get('query', '')
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working_dir = "./Test/Math" # 使用与T2_Query.py相同的目录
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async def generate_response_stream():
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rag = None
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try:
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logger.info(f"Initializing RAG with working_dir: {working_dir}")
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rag = await initialize_rag(working_dir)
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logger.info("RAG initialized successfully")
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resp = await rag.aquery(
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query,
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param=QueryParam(mode="hybrid", stream=True),
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)
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logger.info("Query execution started")
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async for chunk in resp:
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if not chunk: # Skip empty chunks
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continue
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try:
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yield f"data: {json.dumps({'reply': chunk}, ensure_ascii=False)}\n\n"
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except Exception as e:
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logger.error(f"Error processing chunk: {e}")
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yield f"data: {json.dumps({'error': str(e)})}\n\n"
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except Exception as e:
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yield f"data: {json.dumps({'error': str(e)})}\n\n"
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finally:
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if rag:
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await rag.finalize_storages()
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return EventSourceResponse(generate_response_stream())
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if __name__ == "__main__":
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uvicorn.run(app, host="0.0.0.0", port=8000)
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