app = FastAPI(lifespan=lifespan) 我们定义lifespan,以便在启动时创建 db 和 tables。 让我们运行一下代码来测试一下: poetry run fastapi run 结果如下所示: 在浏览器登录如下地址: 127.0.0.1:8000/docs 可以看到如下界面: 可以在终端中按 Ctrl C 暂时关闭应用程序。 2.4 创建端点 接下来,创建端点来生成电子...
从.database 导入 get_async_db, User, initialize_database @asynccontextmanager async def lifespan(app: FastAPI): # 初始化数据库 await initialize_database() yield app = FastAPI(lifespan=lifespan) @app.get("/users/{user_id}") async def get_user(user_id: int, db: AsyncSession = Depends...
1.2 Tortoise-ORM初始化配置 在FastAPI启动时初始化数据库连接,推荐使用lifespan事件处理: from contextlib import asynccontextmanager from fastapi import FastAPI from tortoise import Tortoise @asynccontextmanager asyncdeflifespan(app: FastAPI): await Tortoise.init( db_url='postgres://user:pass@localhost:543...
db_url=settings.db_url, modules=settings.db_modules, generate_schemas=True, add_exception_handlers=True, ): # 数据库连接 yield # 应用清理完成 main_app = FastAPI(lifespan=lifespan) 所以利用这个方法,启动时的任务会在yield前插入,而关闭时的任务会在yield后插入。这是一个相当巧妙的想法。比如,我在...
FastBot# `plugins` parameter will pass to `fastbot.plugin.PluginManager.import_from(...)`# the rest parameter will pass to `FastAPI(...)`.build(plugins=["plugins"], lifespan=lifespan)# Parameter will pass to `uvicorn.run(...)`.run(host="0.0.0.0", port=80) ...
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...
If your application relies on lifespan events, theAsyncClientwon't trigger these events. To ensure they are triggered, useLifespanManagerfromflorimondmanca/asgi-lifespan. Other Asynchronous Function Calls¶ As the testing function is now asynchronous, you can now also call (andawait) otherasync...
# app/main.py from fastapi import FastAPI from .database import create_db_and_tables async def lifespan(app): await create_db_and_tables() yield app = FastAPI(lifespan=lifespan) lifespan是在应用程序启动和停止时用来执行一些操作的,这里将其定义为在启动时创建数据库和表。 要测试这一点,请运行...
description=settings.DESCRIPTION,#docs_url=settings.DOCS_URL,#redoc_url=settings.REDOCS_URL,#openapi_url=settings.OPENAPI_URL,#default_response_class=AjaxResponse,lifespan=register_init, ) app.include_router(api_router) 这样所有的路由信息全部汇总,就可以出现在fastApi的Swagger文档界面中了。
I can confirm that I am using fastapi version 0.110.0 with tortoise orm 0.20.0 and lifespan. The errorNoneType' object is not iterableis due to the fact that the connection is not registered when you run the query This is the solution I am currently using: ...