FastAPI:LifespanEvents
수명 이벤트
Example
from contextlib import asynccontextmanager
from fastapi import FastAPI
def fake_answer_to_everything_ml_model(x: float):
return x * 42
ml_models = {}
@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 the resources
ml_models.clear()
app = FastAPI(lifespan=lifespan)
@app.get("/predict")
async def predict(x: float):
result = ml_models["answer_to_everything"](x)
return {"result": result}