Medium: OpenAPI and CodeGen - FastAPI

main.py

from fastapi import FastAPI
from fastapi.middleware.cors import CORSMiddleware
from fastapi.responses import JSONResponse
from pydantic import BaseModel

app = FastAPI()
app.add_middleware(CORSMiddleware, allow_origins=['*'])

class Bar(BaseModel):
  items: list[str] = []

@app.get('/GetFoo', operation_id='GetFoo',
    response_class=JSONResponse, response_model=Bar, tags=['First'])
async def get_foo():
  return Bar(items=[1,2,3])