class Loaner(object):
""" Object for control of threaded Loaner loop"""
def __init__(self,
Key,
Secret,
interval=60 * 2,
ageLimit=60 * 5,
offset=2):
"""
- <Key> - Polo Api key
- <Secret> - Polo Api secret
- Loaner.INTERVAL = time in sec to wait between updates [default= 2min]
- Loaner.AGELIMIT = max age (in sec) for an open loan offer [default= 5min]
- Loaner.OFFSET = offset from the top loan offer rate (offset*0.000001) [default= 2]
- Loaner.CHECKINT = number of times to check Loaner.RUNNING between intervals [default= INTERVAL/10]
- Loaner.MINAMOUNT = Minimum amount for creating loan offers [default= 0.01]
"""
self.POLO = Poloniex(Key, Secret)
self.INTERVAL, self.CHECKINT = interval, interval / 10
self.AGELIMIT, self.OFFSET, self.MINAMOUNT = ageLimit, offset, 0.01
self._running, self._thread = False, None
def _run(self):
""" Main loop that is threaded (set Loaner.RUNNING to 'False' to stop loop)"""
while self._running:
try:
self.cancelOldLoans(self.POLO.myOpenLoanOrders(),
self.AGELIMIT)
self.createLoans(self.POLO.myAvailBalances(), self.OFFSET)
for i in range(self.CHECKINT):
if not self._running: break
time.sleep(self.INTERVAL / self.CHECKINT)
except Exception as e:
logging.info(e)
time.sleep(self.INTERVAL / self.CHECKINT)
def start(self):
""" Start Loaner.thread"""
self._thread = Thread(target=self._run)
self._thread.daemon = True
self._running = True
self._thread.start()
logging.info('LOANER: started')
def stop(self):
""" Stop Loaner.thread"""
self._running = False
self._thread.join()
logging.info('LOANER: stopped')
def cancelOldLoans(self, orderList, ageLimit):
""" Cancel loans in <orderList> that are older than <ageLimit>
- orderList = JSON object received from poloniex (open loan orders)
- ageLimit = max age to allow an order to sit still before canceling (in seconds)"""
logging.info('LOANER: Checking for stale offers')
for market in orderList:
for order in orderList[market]:
logging.info(
'LOANER: %s order %s has been open %f2 mins' %
(market, str(order['id']),
round(
(time.time() - self.POLO.UTCstr2epoch(order['date']))
/ 60, 2)))
if time.time() - self.POLO.UTCstr2epoch(
order['date']) > ageLimit:
result = self.POLO.cancelLoanOrder(order['id'])
if not 'error' in result:
logging.info('LOANER: %s %s [%s]' %
(market, result["message"].lower(),
str(order['id'])))
else:
logging.info('LOANER: %s' % result['error'])
def createLoans(self, balances, offset):
""" Create loans for all markets in <balances> at the <offset> from the top rate
- balances = JSON object received from poloniex (available balances)
- offset = number of 'loanToshis' to offset from the top loan order (offset*0.000001)"""
if 'lending' in balances:
logging.info('LOANER: Checking for coins in lending account')
for market in balances['lending']:
if float(balances['lending'][market]) > self.MINAMOUNT:
result = self.POLO.createLoanOrder(
market, balances['lending'][market],
float(
self.POLO.marketLoans(market)['offers'][0]['rate'])
+ (offset * 0.000001))
if not 'error' in result:
logging.info('LOANER: %s %s %s' %
(balances['lending'][market], market,
result["message"].lower()))
else:
logging.info('LOANER: %s' % result['error'])
class Loaner(object):
""" Object for control of threaded Loaner loop"""
def __init__(self, Key, Secret, interval=60*2, ageLimit=60*5, offset=2):
"""
- <Key> - Polo Api key
- <Secret> - Polo Api secret
- Loaner.INTERVAL = time in sec to wait between updates [default= 2min]
- Loaner.AGELIMIT = max age (in sec) for an open loan offer [default= 5min]
- Loaner.OFFSET = offset from the top loan offer rate (offset*0.000001) [default= 2]
- Loaner.CHECKINT = number of times to check Loaner.RUNNING between intervals (could be hard on cpu if set too high and INTERVAL set too low!) [default= 20]
- Loaner.MINAMOUNT = Minimum amount for creating loan offers [default= 0.01]
"""
self.POLO = Poloniex(Key, Secret)
self.INTERVAL, self.AGELIMIT, self.OFFSET, self.CHECKINT, self.MINAMOUNT, self._running, self._thread = [interval, ageLimit, offset, 20, 0.01, False, None]
def _run(self):
""" Main loop that is threaded (set Loaner.RUNNING to 'False' to stop loop)"""
while self._running:
try:
self.cancelOldLoans(self.POLO.myOpenLoanOrders(), self.AGELIMIT)
self.createLoans(self.POLO.myAvailBalances(), self.OFFSET)
for i in range(self.CHECKINT):
if not self._running: break
time.sleep(self.INTERVAL/self.CHECKINT)
except Exception as e:
logging.info(e);time.sleep(self.INTERVAL/self.CHECKINT)
def start(self):
""" Start Loaner.thread"""
self._thread = Thread(target=self._run);self._thread.daemon = True
self._running = True;self._thread.start()
logging.info('LOANER: started')
def stop(self):
""" Stop Loaner.thread"""
self._running = False;self._thread.join()
logging.info('LOANER: stopped')
def cancelOldLoans(self, orderList, ageLimit):
""" Cancel loans in <orderList> that are older than <ageLimit>
- orderList = JSON object received from poloniex (open loan orders)
- ageLimit = max age to allow an order to sit still before canceling (in seconds)"""
logging.info('LOANER: Checking for stale offers')
for market in orderList:
for order in orderList[market]:
logging.info('LOANER: %s order %s has been open %f2 mins' % (market, str(order['id']), round((time.time()-self.POLO.UTCstr2epoch(order['date']))/60, 2)))
if time.time()-self.POLO.UTCstr2epoch(order['date']) > ageLimit:
result = self.POLO.cancelLoanOrder(order['id'])
if not 'error' in result: logging.info('LOANER: %s %s [%s]' % (market, result["message"].lower(), str(order['id'])))
else: logging.info('LOANER: %s' % result['error'])
def createLoans(self, balances, offset):
""" Create loans for all markets in <balances> at the <offset> from the top rate
- balances = JSON object received from poloniex (available balances)
- offset = number of 'loanToshis' to offset from the top loan order (offset*0.000001)"""
if 'lending' in balances:
logging.info('LOANER: Checking for coins in lending account')
for market in balances['lending']:
if float(balances['lending'][market]) > self.MINAMOUNT:
result = self.POLO.createLoanOrder(market, balances['lending'][market], float(self.POLO.marketLoans(market)['offers'][0]['rate'])+(offset*0.000001))
if not 'error' in result: logging.info('LOANER: %s %s %s' % (balances['lending'][market], market, result["message"].lower()))
else: logging.info('LOANER: %s' % result['error'])
