fix(docs_src): changing all app.event refrence to asynccontextmanager

docs_src/sql_databases/tutorial001.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import List, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -27,13 +28,15 @@ def get_session():
         yield session
 
 
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: Session = Depends(get_session)) -> Hero:

docs_src/sql_databases/tutorial001_an.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import List, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -30,13 +31,15 @@ def get_session():
 
 SessionDep = Annotated[Session, Depends(get_session)]
 
-app = FastAPI()
 
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: SessionDep) -> Hero:

docs_src/sql_databases/tutorial001_an_py310.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Annotated
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -29,13 +30,14 @@ def get_session():
 
 SessionDep = Annotated[Session, Depends(get_session)]
 
-app = FastAPI()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #This Allows app to run
 
+    #Statements below yield are ran after shutdown
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
-
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: SessionDep) -> Hero:

docs_src/sql_databases/tutorial001_an_py39.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Annotated, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -29,13 +30,15 @@ def get_session():
 
 SessionDep = Annotated[Session, Depends(get_session)]
 
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: SessionDep) -> Hero:

docs_src/sql_databases/tutorial001_py310.py

@@ -1,3 +1,5 @@
+from contextlib import asynccontextmanager
+
 from fastapi import Depends, FastAPI, HTTPException, Query
 from sqlmodel import Field, Session, SQLModel, create_engine, select
 
@@ -25,13 +27,14 @@ def get_session():
         yield session
 
 
-app = FastAPI()
-
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: Session = Depends(get_session)) -> Hero:

docs_src/sql_databases/tutorial001_py39.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -27,13 +28,14 @@ def get_session():
         yield session
 
 
-app = FastAPI()
 
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
-
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/")
 def create_hero(hero: Hero, session: Session = Depends(get_session)) -> Hero:

docs_src/sql_databases/tutorial002.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import List, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -44,14 +45,17 @@ def get_session():
         yield session
 
 
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #StartUp
+    yield #Allows app to run
+    #Shut down
 
 
+app = FastAPI(lifespan=lifespan)
+
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: Session = Depends(get_session)):
     db_hero = Hero.model_validate(hero)

docs_src/sql_databases/tutorial002_an.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import List, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -46,13 +47,15 @@ def get_session():
 
 
 SessionDep = Annotated[Session, Depends(get_session)]
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: SessionDep):

docs_src/sql_databases/tutorial002_an_py310.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Annotated
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -45,13 +46,15 @@ def get_session():
 
 
 SessionDep = Annotated[Session, Depends(get_session)]
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: SessionDep):

docs_src/sql_databases/tutorial002_an_py39.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Annotated, Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -45,13 +46,15 @@ def get_session():
 
 
 SessionDep = Annotated[Session, Depends(get_session)]
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: SessionDep):

docs_src/sql_databases/tutorial002_py310.py

@@ -1,3 +1,5 @@
+from contextlib import asynccontextmanager
+
 from fastapi import Depends, FastAPI, HTTPException, Query
 from sqlmodel import Field, Session, SQLModel, create_engine, select
 
@@ -42,13 +44,15 @@ def get_session():
         yield session
 
 
-app = FastAPI()
 
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: Session = Depends(get_session)):

docs_src/sql_databases/tutorial002_py39.py

@@ -1,3 +1,4 @@
+from contextlib import asynccontextmanager
 from typing import Union
 
 from fastapi import Depends, FastAPI, HTTPException, Query
@@ -44,13 +45,14 @@ def get_session():
         yield session
 
 
-app = FastAPI()
 
+@asynccontextmanager
+async def lifespan(app:FastAPI):
+    create_db_and_tables() #Startup
+    yield #Allows app to run
+    #Shutdown
 
-@app.on_event("startup")
-def on_startup():
-    create_db_and_tables()
-
+app = FastAPI(lifespan=lifespan)
 
 @app.post("/heroes/", response_model=HeroPublic)
 def create_hero(hero: HeroCreate, session: Session = Depends(get_session)):