Python で株式最新相場を取得：リクエストからパースまで

1import json, os, uuid
2from datetime import datetime, timezone
3import requests
4
5BASE_URL = "https://quote.alltick.co/quote-stock-b-api"
6
7def latest_trades(codes: list[str]) -> list[dict]:
8    token = os.getenv("ALLTICK_API_TOKEN", "YOUR_API_TOKEN")
9    query = {
10        "trace": str(uuid.uuid4()),
11        "data": {"symbol_list": [{"code": c} for c in codes]},
12    }
13    resp = requests.get(
14        f"{BASE_URL}/trade-tick",
15        params={"token": token, "query": json.dumps(query)},
16        timeout=10,
17    )
18    body = resp.json() if resp.content else {}
19    if body.get("ret") != 200:
20        raise RuntimeError(f"API エラー ret={body.get('ret')} msg={body.get('msg')}")
21    resp.raise_for_status()
22    return body.get("data", {}).get("tick_list", [])
23
24def to_local_time(ms: str) -> str:
25    return datetime.fromtimestamp(int(ms) / 1000, tz=timezone.utc).astimezone().isoformat()
26
27if __name__ == "__main__":
28    for tick in latest_trades(["700.HK", "AAPL.US"]):
29        print(tick.get("code"), tick.get("price"), to_local_time(tick.get("tick_time", "0")))