61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
import enum
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import re
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from typing import Any, DefaultDict, List, Optional
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import httpx
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from fastapi import FastAPI, HTTPException
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from fastapi.params import Header, Path
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from pydantic import BaseModel
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app = FastAPI()
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class Passage(BaseModel):
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ligne: str
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delais: List[str]
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class Passages(BaseModel):
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passages: List[Passage]
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stop_id: int
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@app.get("/stop/{stop_id}", response_model=Passages)
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async def stop(
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stop_id: int = Path(
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None,
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description="Stop id to monitor. Can be obtained using https://data.grandlyon.com/jeux-de-donnees/points-arret-reseau-transports-commun-lyonnais/donnees",
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),
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authorization: Optional[str] = Header(
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None,
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alias="Authorization",
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description="Basic auth for remote API (data grand lyon)",
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),
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):
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if authorization is None:
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raise HTTPException(status_code=401, detail="Not authenticated")
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headers = {"Authorization": authorization}
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async with httpx.AsyncClient(headers=headers) as client:
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res = await client.get(
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"https://download.data.grandlyon.com/ws/rdata/tcl_sytral.tclpassagearret/all.json?maxfeatures=-1"
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)
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if res.status_code != 200:
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raise HTTPException(
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status_code=res.status_code,
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detail="HTTP error during call to remote API",
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)
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passages = DefaultDict(list)
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for passage in res.json().get("values"):
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if passage.get("id") == stop_id:
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ligne = passage.get("ligne")
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ligne = re.sub(
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"[A-Z]$", "", ligne
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) # Remove letter suffix to group by commercial line name
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passages[ligne].append(passage.get("delaipassage"))
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passages_list = []
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for ligne, delais in passages.items():
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passages_list.append(Passage(ligne=ligne, delais=delais))
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return Passages(passages=passages_list, stop_id=stop_id)
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