fastapi Session 设置过期时间 demo

Sure, here's a demo of setting the expiration time for a session in FastAPI:

from fastapi import FastAPI, Request, Response, APIRouter, Depends, HTTPException, status
from fastapi.templating import Jinja2Templates
from fastapi.security import OAuth2PasswordRequestForm
from datetime import timedelta

app = FastAPI()
router = APIRouter()

templates = Jinja2Templates(directory="templates")

def get_settings():
    return settings

# Configurations
class Settings(BaseSettings):
    access_token_expire_minutes: int = 30
    refresh_token_expire_days: int = 30
    api_prefix: str

settings = Settings()

# Session
router = APIRouter()
ACCESS_TOKEN_EXPIRE_MINUTES = settings.access_token_expire_minutes


@router.post("/login/access-token")
async def login_access_token(
    form_data: OAuth2PasswordRequestForm = Depends(),
    session: Session = Depends(get_session),
):
    user = authenticate_user(session, form_data.username, form_data.password)
    if not user:
        raise HTTPException(status_code=400, detail="Incorrect username or password")
    access_token_expires = timedelta(minutes=ACCESS_TOKEN_EXPIRE_MINUTES)
    access_token = create_access_token(
        data={"sub": user.email}, expires_delta=access_token_expires
    )
    return {"access_token": access_token, "token_type": "bearer"}


async def on_startup():
    app.session_cookie_name = "access_token"
    app.include_router(router)
    return


@app.on_event("startup")
async def startup():
    await on_startup()

Hope that helps! Let me know if you have any more questions.