I’m building an algo trading system and need to fetch historical data (like 1-minute candles) from Zerodha.I saw the historical\_data function but not sure what’s the correct way to use it in production.Can someone share a simple and reliable way to fetch historical candles?
To fetch the historical data from zerodha’s api below is the sample code that you can refer and modify it accordingg to your requirenment.
def fetch_historical(kite, token, interval="minute", days=7):
try:
to_date = datetime.now()
from_date = to_date - timedelta(days=days)
data = kite.historical_data(
instrument_token=token,
from_date=from_date,
to_date=to_date,
interval=interval
)
# FIX: strip timezone from all historical candle dates for consistent comparison
for c in data:
if c.get("date") and hasattr(c["date"], "tzinfo") and c["date"].tzinfo:
c["date"] = c["date"].replace(tzinfo=None)
return data
except Exception as error:
print(f"Historical fetch failed for token {token}: {error}")
return []
fetch_historical(kite = kite,token=209604 , interval="minute", days=5)Since the from\_date and to\_date are necessary parameters gives the candle data between this 2 dates in format datetime.
There are the 2 more parametrs we can pass to the kite.historical\_data that is IO ( for IO data ) and continuous ( for continuous data ), but they are optional also sees thatin offical documentation <https://www.kite.trade/docs/>.