Opções sobre Futuros

# 1) Vencimentos disponíveis
curl -H "Authorization: Bearer $BRAPI_TOKEN" \
  "https://brapi.dev/api/v2/futures/options/expirations?underlying=BGI"

# 2) Cadeia (calls + puts) de um vencimento
curl -H "Authorization: Bearer $BRAPI_TOKEN" \
  "https://brapi.dev/api/v2/futures/options/chain?underlying=BGI&expirationDate=2026-05-29"

# 3) Histórico de uma série
curl -H "Authorization: Bearer $BRAPI_TOKEN" \
  "https://brapi.dev/api/v2/futures/options/historical?symbol=BGIK26C034300"

const BASE = 'https://brapi.dev/api/v2/futures/options';
const headers = { Authorization: `Bearer ${process.env.BRAPI_TOKEN}` };

// 1) Vencimentos
const exps = await fetch(`${BASE}/expirations?underlying=BGI`, {
  headers,
}).then((r) => r.json());

const nextExp = exps.expirations[0];

// 2) Cadeia
const chain = await fetch(
  `${BASE}/chain?underlying=BGI&expirationDate=${nextExp}`,
  { headers },
).then((r) => r.json());

// 3) Histórico da série mais próxima do preço
const atm = chain.series[0];
const history = await fetch(
  `${BASE}/historical?symbol=${atm.symbol}`,
  { headers },
).then((r) => r.json());

console.log(history);

import os, requests

BASE = "https://brapi.dev/api/v2/futures/options"
headers = {"Authorization": f"Bearer {os.environ['BRAPI_TOKEN']}"}

# 1) Vencimentos
exps = requests.get(
    f"{BASE}/expirations", params={"underlying": "BGI"}, headers=headers
).json()
next_exp = exps["expirations"][0]

# 2) Cadeia
chain = requests.get(
    f"{BASE}/chain",
    params={"underlying": "BGI", "expirationDate": next_exp},
    headers=headers,
).json()

# 3) Histórico
atm = chain["series"][0]
history = requests.get(
    f"{BASE}/historical", params={"symbol": atm["symbol"]}, headers=headers
).json()

print(history)