Docker containers on Spaces

Spaces
1

I am following this tutorial to learn docker with hf spaces.

This is the code in app.py.

from fastapi import FastAPI
from transformers import pipeline

app = FastAPI(docs_url="/", openapi_url="/api/v1/openapi.json")

pipe = pipeline('text2text-generation', 
                model='google/flan-t5-small')


@app.get("/generate")
def generate(text:str):

    output = pipe(text)
    return {"output": output[0]["generated_text"]}

I’m getting following error -
Failed to load API definition

Fetch error

response status is 404 /api/v1/openapi.json

I have tried without the openapi_url argument inside FastAPI() (as written in the blog)
but that is also giving the same error.

Would appreciate some help in how to resolve this.

PS: I ran the docker image locally and it’s not giving any issues.