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betfairexecution.py
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betfairexecution.py
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import logging
import requests
from typing import Callable
from betfairlightweight import BetfairError
from .baseexecution import BaseExecution
from ..clients.clients import ExchangeType
from ..order.orderpackage import BaseOrderPackage, OrderPackageType
from ..exceptions import OrderExecutionError
logger = logging.getLogger(__name__)
class BetfairExecution(BaseExecution):
EXCHANGE = ExchangeType.BETFAIR
def execute_place(
self, order_package: BaseOrderPackage, http_session: requests.Session
) -> None:
response = self._execution_helper(self.place, order_package, http_session)
if response:
for (order, instruction_report) in zip(
order_package, response.place_instruction_reports
):
with order.trade:
self._order_logger(
order, instruction_report, OrderPackageType.PLACE
)
if instruction_report.status == "SUCCESS":
order.executable()
elif instruction_report.status == "FAILURE":
order.lapsed() # todo correct?
elif instruction_report.status == "TIMEOUT":
# https://docs.developer.betfair.com/display/1smk3cen4v3lu3yomq5qye0ni/Betting+Enums#BettingEnums-ExecutionReportStatus
pass
# update transaction counts
order_package.client.add_transaction(len(order_package))
def place(self, order_package: OrderPackageType, session: requests.Session):
return order_package.client.betting_client.betting.place_orders(
market_id=order_package.market_id,
instructions=order_package.place_instructions,
customer_ref=order_package.id.hex,
market_version=order_package.market_version,
customer_strategy_ref=order_package.customer_strategy_ref,
async_=order_package.async_,
session=session,
)
def execute_cancel(
self, order_package: BaseOrderPackage, http_session: requests.Session
) -> None:
response = self._execution_helper(self.cancel, order_package, http_session)
if response:
failed_transaction_count = 0
order_lookup = {o.bet_id: o for o in order_package}
for instruction_report in response.cancel_instruction_reports:
# get order (can't rely on the order they are returned)
order = order_lookup.pop(instruction_report.instruction.bet_id)
with order.trade:
self._order_logger(
order, instruction_report, OrderPackageType.CANCEL
)
if instruction_report.status == "SUCCESS":
if (
instruction_report.size_cancelled == order.size_remaining
): # todo what if?
order.execution_complete()
else:
order.executable()
elif instruction_report.status == "FAILURE":
order.executable()
failed_transaction_count += 1
elif instruction_report.status == "TIMEOUT":
order.executable()
# reset any not returned so that they can be picked back up
for order in order_lookup.values():
with order.trade:
order.executable()
# update transaction counts
if failed_transaction_count:
order_package.client.add_transaction(
failed_transaction_count, failed=True
)
def cancel(self, order_package: OrderPackageType, session: requests.Session):
# temp copy to prevent an empty list of instructions sent
# this can occur if order is matched during the execution
# cycle, resulting in all orders being cancelled!
cancel_instructions = list(order_package.cancel_instructions)
if not cancel_instructions:
logger.warning("Empty cancel_instructions", extra=order_package.info)
raise OrderExecutionError()
return order_package.client.betting_client.betting.cancel_orders(
market_id=order_package.market_id,
instructions=cancel_instructions,
customer_ref=order_package.id.hex,
session=session,
)
def execute_update(
self, order_package: BaseOrderPackage, http_session: requests.Session
) -> None:
response = self._execution_helper(self.update, order_package, http_session)
if response:
failed_transaction_count = 0
for (order, instruction_report) in zip(
order_package, response.update_instruction_reports
):
with order.trade:
self._order_logger(
order, instruction_report, OrderPackageType.UPDATE
)
if instruction_report.status == "SUCCESS":
order.executable()
elif instruction_report.status == "FAILURE":
order.executable()
failed_transaction_count += 1
elif instruction_report.status == "TIMEOUT":
order.executable()
# update transaction counts
if failed_transaction_count:
order_package.client.add_transaction(
failed_transaction_count, failed=True
)
def update(self, order_package: OrderPackageType, session: requests.Session):
return order_package.client.betting_client.betting.update_orders(
market_id=order_package.market_id,
instructions=order_package.update_instructions,
customer_ref=order_package.id.hex,
session=session,
)
def execute_replace(
self, order_package: BaseOrderPackage, http_session: requests.Session
) -> None:
response = self._execution_helper(self.replace, order_package, http_session)
if response:
failed_transaction_count = 0
market = self.flumine.markets.markets[order_package.market_id]
for (order, instruction_report) in zip(
order_package, response.replace_instruction_reports
):
with order.trade:
# process cancel response
if (
instruction_report.cancel_instruction_reports.status
== "SUCCESS"
):
self._order_logger(
order,
instruction_report.cancel_instruction_reports,
OrderPackageType.CANCEL,
)
order.execution_complete()
elif (
instruction_report.cancel_instruction_reports.status
== "FAILURE"
):
order.executable()
failed_transaction_count += 1
elif (
instruction_report.cancel_instruction_reports.status
== "TIMEOUT"
):
order.executable()
# process place response
if instruction_report.place_instruction_reports.status == "SUCCESS":
# create new order
replacement_order = order.trade.create_order_replacement(
order,
instruction_report.place_instruction_reports.instruction.limit_order.price,
instruction_report.place_instruction_reports.instruction.limit_order.size,
)
self._order_logger(
replacement_order,
instruction_report.place_instruction_reports,
OrderPackageType.REPLACE,
)
# add to blotter
market.place_order(replacement_order, execute=False)
replacement_order.executable()
elif (
instruction_report.place_instruction_reports.status == "FAILURE"
):
pass # todo
elif (
instruction_report.place_instruction_reports.status == "TIMEOUT"
):
pass # todo
# update transaction counts
order_package.client.add_transaction(len(order_package))
if failed_transaction_count:
order_package.client.add_transaction(
failed_transaction_count, failed=True
)
def replace(self, order_package: OrderPackageType, session: requests.Session):
return order_package.client.betting_client.betting.replace_orders(
market_id=order_package.market_id,
instructions=order_package.replace_instructions,
customer_ref=order_package.id.hex,
market_version=order_package.market_version,
async_=order_package.async_,
session=session,
)
def _execution_helper(
self,
trading_function: Callable,
order_package: BaseOrderPackage,
http_session: requests.Session,
):
if order_package.orders:
try:
response = trading_function(order_package, http_session)
except BetfairError as e:
logger.error(
"Execution error",
extra={
"trading_function": trading_function.__name__,
"response": e,
"order_package": order_package.info,
},
exc_info=True,
)
if order_package.retry():
self.handler(order_package)
self._return_http_session(http_session, err=True)
return
except Exception as e:
logger.critical(
"Execution unknown error",
extra={
"trading_function": trading_function.__name__,
"exception": e,
"order_package": order_package.info,
},
exc_info=True,
)
self._return_http_session(http_session, err=True)
return
logger.info(
"execute_%s" % trading_function.__name__,
extra={
"trading_function": trading_function.__name__,
"elapsed_time": response.elapsed_time,
"response": response._data,
"order_package": order_package.info,
},
)
self._return_http_session(http_session)
return response
else:
logger.warning("Empty package, not executing", extra=order_package.info)
self._return_http_session(http_session)