[Serve] Fastapi 0.109.0 is breaking the Serve proxy #42711
Description
What happened + What you expected to happen
pip install fastapi==0.109.0.
run
import ray
import requests
from fastapi import FastAPI
from ray import serve
app = FastAPI()
@serve.deployment
@serve.ingress(app)
class MyFastAPIDeployment:
@app.get("/")
def root(self):
return "Hello, world!"
serve.run(MyFastAPIDeployment.bind(), route_prefix="/hello")
resp = requests.get("http://localhost:8000/hello")
# Got 404 response
assert resp.json() == "Hello, world!"
Upstream issue: fastapi/fastapi#10948
Versions / Dependencies
master
Reproduction script
N/A
Issue Severity
Medium: It is a significant difficulty but I can work around it.