def main():
logging.basicConfig(level=logging.INFO)
feed = 'iex' # <- replace to SIP if you have PRO subscription
stream = Stream(data_feed=feed, raw_data=True)
stream.subscribe_trade_updates(print_trade_update)
stream.subscribe_trades(print_trade, 'AAPL')
stream.subscribe_quotes(print_quote, 'IBM')
stream.subscribe_crypto_trades(print_crypto_trade, 'BTCUSD')
@stream.on_bar('MSFT')
async def _(bar):
print('bar', bar)
@stream.on_updated_bar('MSFT')
async def _(bar):
print('updated bar', bar)
@stream.on_status("*")
async def _(status):
print('status', status)
@stream.on_luld('AAPL', 'MSFT')
async def _(luld):
print('LULD', luld)
stream.run()
class Streamer:
conn = None
def __init__(self,
q,
api_key='',
api_secret='',
instrument='',
method: StreamingMethod = StreamingMethod.AccountUpdate,
base_url='',
data_url='',
data_feed='iex',
*args,
**kwargs):
try:
# make sure we have an event loop, if not create a new one
asyncio.get_event_loop()
except RuntimeError:
asyncio.set_event_loop(asyncio.new_event_loop())
self.conn = Stream(api_key,
api_secret,
base_url,
data_stream_url=data_url,
data_feed=data_feed)
self.instrument = instrument
self.method = method
self.q = q
def run(self):
if self.method == StreamingMethod.AccountUpdate:
self.conn.subscribe_trade_updates(self.on_trade)
elif self.method == StreamingMethod.MinuteAgg:
self.conn.subscribe_bars(self.on_agg_min, self.instrument)
elif self.method == StreamingMethod.Quote:
self.conn.subscribe_quotes(self.on_quotes, self.instrument)
# this code runs in a new thread. we need to set the loop for it
loop = asyncio.new_event_loop()
asyncio.set_event_loop(loop)
self.conn.run()
async def on_listen(self, conn, stream, msg):
pass
async def on_quotes(self, msg):
msg._raw['time'] = msg.timestamp
self.q.put(msg._raw)
async def on_agg_min(self, msg):
msg._raw['time'] = msg.timestamp
self.q.put(msg._raw)
async def on_account(self, msg):
self.q.put(msg)
async def on_trade(self, msg):
self.q.put(msg)
class AlpacaStream(StreamingAPI):
def __init__(self, queues: QueueMapper):
self.alpaca_ws_client = Stream(
key_id=config.alpaca_api_key, secret_key=config.alpaca_api_secret
)
if not self.alpaca_ws_client:
raise AssertionError(
"Failed to authenticate Alpaca web_socket client"
)
self.alpaca_ws_client.subscribe_trade_updates(
AlpacaStream.trade_update_handler
)
self.alpaca_ws_client.run()
super().__init__(queues)
@classmethod
async def trade_update_handler(cls, msg):
print(f"trade_update_handler:{msg}")
@classmethod
async def bar_handler(cls, msg):
print(f"bar_handler:{msg}")
@classmethod
async def trades_handler(cls, msg):
print(f"trades_handler:{msg}")
@classmethod
async def quotes_handler(cls, msg):
print(f"quotes_handler:{msg}")
async def subscribe(
self, symbols: List[str], events: List[WSEventType]
) -> bool:
for event in events:
if event == WSEventType.SEC_AGG:
raise NotImplementedError(
f"event {event} not implemente in Alpaca"
)
elif event == WSEventType.MIN_AGG:
self.alpaca_ws_client.subscribe_bars(
AlpacaStream.bar_handler, symbols
)
elif event == WSEventType.TRADE:
self.alpaca_ws_client.subscribe_trades(
AlpacaStream.trades_handler, symbols
)
elif event == WSEventType.QUOTE:
self.alpaca_ws_client.subscribe_quotes(
AlpacaStream.quotes_handler, symbols
)
return True
def main():
logging.basicConfig(level=logging.INFO)
feed = 'iex' # <- replace to SIP if you have PRO subscription
stream = Stream(data_feed=feed, raw_data=True)
stream.subscribe_trade_updates(print_trade_update)
stream.subscribe_trades(print_trade, 'AAPL')
stream.subscribe_quotes(print_quote, 'IBM')
@stream.on_bar('MSFT')
async def _(bar):
print('bar', bar)
stream.run()
class AlpacaTrader(Trader):
def __init__(self, qm: QueueMapper = None):
self.market_open: Optional[datetime]
self.market_close: Optional[datetime]
self.alpaca_rest_client = REST(
base_url=URL(config.alpaca_base_url),
key_id=config.alpaca_api_key,
secret_key=config.alpaca_api_secret,
)
if not self.alpaca_rest_client:
raise AssertionError(
"Failed to authenticate Alpaca RESTful client"
)
if qm:
self.alpaca_ws_client = Stream(
base_url=URL(config.alpaca_base_url),
key_id=config.alpaca_api_key,
secret_key=config.alpaca_api_secret,
)
if not self.alpaca_ws_client:
raise AssertionError(
"Failed to authenticate Alpaca web_socket client"
)
self.alpaca_ws_client.subscribe_trade_updates(
AlpacaTrader.trade_update_handler
)
self.running_task: Optional[asyncio.Task] = None
now = datetime.now(nyc)
calendar = self.alpaca_rest_client.get_calendar(
start=now.strftime("%Y-%m-%d"), end=now.strftime("%Y-%m-%d")
)[0]
if now.date() >= calendar.date.date():
self.market_open = now.replace(
hour=calendar.open.hour,
minute=calendar.open.minute,
second=0,
microsecond=0,
)
self.market_close = now.replace(
hour=calendar.close.hour,
minute=calendar.close.minute,
second=0,
microsecond=0,
)
else:
self.market_open = self.market_close = None
super().__init__(qm)
async def is_order_completed(self, order) -> Tuple[bool, float]:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
status = self.alpaca_rest_client.get_order(order_id=order.id)
if status.filled_qty == order.qty:
return True, float(status.filled_avg_price)
return False, 0.0
def get_market_schedule(
self,
) -> Tuple[Optional[datetime], Optional[datetime]]:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
return self.market_open, self.market_close
def get_trading_days(
self, start_date: date, end_date: date = date.today()
) -> pd.DataFrame:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
calendars = self.alpaca_rest_client.get_calendar(
start=str(start_date), end=str(end_date)
)
_df = pd.DataFrame.from_dict([calendar._raw for calendar in calendars])
_df["date"] = pd.to_datetime(_df.date)
return _df.set_index("date")
def get_position(self, symbol: str) -> float:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
return self.alpaca_rest_client.get_position(symbol)
async def get_order(self, order_id: str):
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
return self.alpaca_rest_client.get_order(order_id)
def is_market_open_today(self) -> bool:
return self.market_open is not None
def get_time_market_close(self) -> Optional[timedelta]:
if not self.is_market_open_today():
raise AssertionError("Market closed today")
return (
self.market_close - datetime.now(nyc)
if self.market_close
else None
)
async def reconnect(self):
self.alpaca_rest_client = REST(
key_id=config.alpaca_api_key, secret_key=config.alpaca_api_secret
)
if not self.alpaca_rest_client:
raise AssertionError(
"Failed to authenticate Alpaca RESTful client"
)
async def run(self) -> Optional[asyncio.Task]:
if not self.running_task:
tlog("starting Alpaca listener")
self.running_task = asyncio.create_task(
self.alpaca_ws_client._trading_ws._run_forever()
)
return self.running_task
async def close(self):
if not self.alpaca_ws_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
if self.running_task:
await self.alpaca_ws_client.stop_ws()
async def get_tradeable_symbols(self) -> List[str]:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
data = self.alpaca_rest_client.list_assets()
return [asset.symbol for asset in data if asset.tradable]
async def get_shortable_symbols(self) -> List[str]:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
data = self.alpaca_rest_client.list_assets()
return [
asset.symbol
for asset in data
if asset.tradable and asset.easy_to_borrow and asset.shortable
]
async def is_shortable(self, symbol) -> bool:
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
asset = self.alpaca_rest_client.get_asset(symbol)
return (
asset.tradable is not False
and asset.shortable is not False
and asset.status != "inactive"
and asset.easy_to_borrow is not False
)
async def cancel_order(self, order_id: str):
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
self.alpaca_rest_client.cancel_order(order_id)
async def submit_order(
self,
symbol: str,
qty: float,
side: str,
order_type: str,
time_in_force: str,
limit_price: str = None,
stop_price: str = None,
client_order_id: str = None,
extended_hours: bool = None,
order_class: str = None,
take_profit: dict = None,
stop_loss: dict = None,
trail_price: str = None,
trail_percent: str = None,
):
if not self.alpaca_rest_client:
raise AssertionError("Must call w/ authenticated Alpaca client")
return self.alpaca_rest_client.submit_order(
symbol,
str(qty),
side,
order_type,
time_in_force,
limit_price,
stop_price,
client_order_id,
extended_hours,
order_class,
take_profit,
stop_loss,
trail_price,
trail_percent,
)
@classmethod
async def trade_update_handler(cls, data):
symbol = data.__dict__["_raw"]["order"]["symbol"]
data.__dict__["_raw"]["EV"] = "trade_update"
data.__dict__["_raw"]["symbol"] = symbol
try:
cls.get_instance().queues[symbol].put(
data.__dict__["_raw"], timeout=1
)
except queue.Full as f:
tlog(
f"[EXCEPTION] process_message(): queue for {symbol} is FULL:{f}, sleeping for 2 seconds and re-trying."
)
raise
except AssertionError:
for q in cls.get_instance().queues.get_allqueues():
q.put(data.__dict__["_raw"], timeout=1)
except Exception as e:
tlog(f"[EXCEPTION] process_message(): exception {e}")
traceback.print_exc()
def start_trading(self):
conn = Stream(
self.key_id,
self.secret_key,
base_url=self.base_url,
data_feed='iex') # <- replace to SIP if you have PRO subscription
# Listen for second aggregates and perform trading logic
async def handle_bar(bar):
self.tick_index = (self.tick_index + 1) % self.tick_size
if self.tick_index == 0:
# It's time to update
# Update price info
tick_open = self.last_price
tick_close = bar.close
self.last_price = tick_close
self.process_current_tick(tick_open, tick_close)
conn.subscribe_bars(handle_bar, self.symbol)
# Listen for quote data and perform trading logic
async def handle_trades(trade):
now = datetime.datetime.utcnow()
if now - self.last_trade_time < datetime.timedelta(seconds=1):
# don't react every tick unless at least 1 second past
return
self.last_trade_time = now
self.tick_index = (self.tick_index + 1) % self.tick_size
if self.tick_index == 0:
# It's time to update
# Update price info
tick_open = self.last_price
tick_close = trade.price
self.last_price = tick_close
self.process_current_tick(tick_open, tick_close)
conn.subscribe_trades(handle_trades, self.symbol)
# Listen for updates to our orders
async def handle_trade_updates(data):
symbol = data.order['symbol']
if symbol != self.symbol:
# The order was for a position unrelated to this script
return
event_type = data.event
qty = int(data.order['filled_qty'])
side = data.order['side']
oid = data.order['id']
if event_type == 'fill' or event_type == 'partial_fill':
# Our position size has changed
self.position = int(data.position_qty)
print(f'New position size due to order fill: {self.position}')
if (event_type == 'fill' and self.current_order
and self.current_order.id == oid):
self.current_order = None
elif event_type == 'rejected' or event_type == 'canceled':
if self.current_order and self.current_order.id == oid:
# Our last order should be removed
self.current_order = None
elif event_type != 'new':
print(f'Unexpected order event type {event_type} received')
conn.subscribe_trade_updates(handle_trade_updates)
conn.run()
