代码结构参考了多个技术文档的最佳实践: fromcontextlibimportasynccontextmanagerfromfastapiimportFastAPI, WebSocket, Request, Response, BackgroundTasksfromfastapi.middleware.corsimportCORSMiddlewarefromfastapi.middleware.gzipimportGZipMiddlewarefromfastapi.staticfilesimportStaticFilesfromfastapi.responsesimportStreamingResponsei...
app = FastAPI()# Redis 连接池配置REDIS_URL ="redis://192.168.252.128:6379/0"@asynccontextmanagerasyncdeflifespan(app: FastAPI):# 初始化 Redis 客户端app.state.redis =awaitaioredis.from_url(REDIS_URL)yield# 关闭 Redis 连接awaitapp.state.redis.close() app.router.lifespan_context = lifespande...
fromcontextlibimportasynccontextmanagerfromfastapiimportFastAPI,Depends,HTTPExceptionfromsqlalchemy.ext.asyncioimportAsyncSessionfromsqlalchemyimportselectfrom.databaseimportget_async_db,User,initialize_database@asynccontextmanagerasync def lifespan(app: FastAPI):# 启动:初始化数据库await initialize_database()yield...
lifespan的用法大致是这个样子的: fromcontextlibimportasynccontextmanager...@asynccontextmanagerasyncdeflifespan(app:FastAPI):asyncio.create_task(commandA(a_queue))asyncio.create_task(commandB(b_queue))asyncio.create_task(commandC(c_queue))yieldapp=FastAPI(lifespan=lifespan) 坦白来说,我觉得这个东西...
answer_to_everything_ml_model(x:float):returnx*42ml_models={}@asynccontextmanagerasyncdeflife...
@asynccontextmanager async def lifespan(app: FastAPI): # Load the ML model ml_models["answer_to_everything"] = fake_answer_to_everything_ml_model yield # Clean up the ML models and release resources ml_models.clear() app = FastAPI(lifespan=lifespan) ...
async def destory(request: Request): await request.state.engine.close() 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 应用启动和关闭事件(新版本) 新版本推荐使用lifespan+异步上下文 from contextlib import asynccontextmanager app = FastAPI() ...
简介:FastAPI(35)- 依赖项中使用 yield + Context Manager 上下文管理器 什么是 Context Manager 上下文管理器 在Python 中,是可以在 with 语句中使用的任何 Python 对象,比如通过 with 来读取文件 with open("./somefile.txt") as f: contents =f.read() ...
("npu:0")@asynccontextmanagerasyncdeflifespan(app:FastAPI):yieldiftorch_npu.npu.is_available():torch_npu.npu.empty_cache()# 实例化api服务器app=FastAPI(lifespan=lifespan)app.add_middleware(CORSMiddleware,allow_origins=["*"],)# 推理实现@app.post("/llm/chat")asyncdefgenerate_chat_output(...
# app.py 中的代码 import asyncio from contextlib import asynccontextmanager from fastapi import FastAPI from config.config import settings # 配置 from src.api.v1.services.kafka.kafka import kafka_consumer # kafka消费者 from src.route.router import router # 路由 @asynccontextmanager async def lif...