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PyPI version CircleCI

alpaca-backtrader-api

alpaca-backtrader-api is a python library for the Alpaca trade API within backtrader framework. It allows rapid trading algo development easily, with support for the both REST and streaming interfaces. For details of each API behavior, please see the online API document.

Note this module supports only python version 3.5 and above, due to the underlying library alpaca-trade-api.

Install

$ pip3 install alpaca-backtrader-api

Example

In order to call Alpaca's trade API, you need to obtain API key pairs. Replace <key_id> and <secret_key> with what you get from the web console.

import backtrader as bt
import alpaca_backtrader_api

class SmaCross(bt.SignalStrategy):
    def __init__(self):
        sma1, sma2 = bt.ind.SMA(period=10), bt.ind.SMA(period=30)
        crossover = bt.ind.CrossOver(sma1, sma2)
        self.signal_add(bt.SIGNAL_LONG, crossover)

cerebro = bt.Cerebro()
cerebro.addstrategy(SmaCross)

store = alpaca_backtrader_api.AlpacaStore(
    key_id=<key_id>,
    secret_key=<secret_key>,
    paper=True
)

broker = store.getbroker()  # or just alpaca_backtrader_api.AlpacaBroker()
cerebro.setbroker(broker)

DataFactory = store.getdata # or use alpaca_backtrader_api.AlpacaData
data0 = DataFactory(dataname='AAPL', historical=True, fromdate=datetime(2015, 1,1), timeframe=bt.TimeFrame.TFrame("Days"))  # Supported timeframes: "Days"/"Minutes"
cerebro.adddata(data0)

cerebro.run(exactbars=1)
cerebro.plot()

API Document

The HTTP API document is located in https://docs.alpaca.markets/

Authentication

The Alpaca API requires API key ID and secret key, which you can obtain from the web console after you sign in. You can set them in the AlpacaStore constructor, using 'key_id' and 'secret_key'.

Paper/Live mode

The 'paper' parameter is default to False, which allows live trading. If you set it to True, then you are in the paper trading mode.

Support and Contribution

For technical issues particular to this module, please report the issue on this GitHub repository. Any API issues can be reported through Alpaca's customer support.

New features, as well as bug fixes, by sending pull request is always welcomed.

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