def poll_cmc():
# Setup
headers = {
'Accepts': 'application/json',
'X-CMC_PRO_API_KEY': '522e4a07-85df-49e5-8b10-db5c64372920',
}
session = Session()
session.headers.update(headers)
try:
while True:
response = session.get(BTCD_URL)
data = loads(response.text)['data']
quick_write(BTCD_FILE, str(data['btc_dominance']))
quote = data['quote']['USD']
quick_write(TMC_FILE, str(quote['total_market_cap']))
quick_write(TV_FILE, str(quote['total_volume_24h']))
quick_write(AV_FILE, str(quote['altcoin_volume_24h']))
quick_write(AMC_FILE, str(quote['altcoin_market_cap']))
sleep(CMC_BETWEEN_ITERS)
except (ConnectionError, Timeout, TooManyRedirects) as e:
print(e)
except KeyboardInterrupt:
print('Bitcoin Dominance polling interrupted.')
async def update(self, observable, message):
if 'params' in message and 'channel' in message[
'params'] and 'data' in message['params']:
channel = message['params']['channel']
quick_write(f'{channel}.json', dumps(message['params']['data']))
else:
print('--- (!) Uncaught message:')
pp.pprint(message)
def poll_deribit():
try:
rest = DeribitRest(auth=False)
while True:
hv = rest.historical_volatility('BTC')[-1][1]
quick_write(HV_FILE, str(hv))
sleep(DERIBIT_BETWEEN_ITERS)
except KeyboardInterrupt:
print('Deribit polling interrupted.')
def write(self):
with LOCK:
for name, content in {
PRICE_FILE: str(self.price),
BUY_FLOW_FILE: str(self.buy_flow),
SELL_FLOW_FILE: str(self.sell_flow),
OPEN_INTEREST_FILE: str(self.open_interest),
PRICE_HISTORY_FILE: dumps(list(self.price_history)),
SELL_FLOW_HISTORY_FILE:
dumps(list(self.sell_flow_history)),
BUY_FLOW_HISTORY_FILE: dumps(list(self.buy_flow_history)),
OPEN_INTEREST_HISTORY_FILE:
dumps(list(self.open_interest_history)),
OPEN_INTERESTS_FILE: dumps(self.open_interests),
RECENT_TRADES_FILE: dumps(list(self.recent_trades),
default=str),
}.items():
quick_write(name, content)
# from time import sleep
from pprint import PrettyPrinter
pp = PrettyPrinter()
INSTRUMENTS_FILE = 'instruments.json'
# Init rest client
rest = DeribitRest(auth=False)
# Get all futures contract names
instruments = [
data['instrument_name'] for data in
rest.public_api.public_get_instruments_get('BTC', kind='future')['result']
]
quick_write(INSTRUMENTS_FILE, dumps(instruments))
# Derive instrument's quote channels
futures_channels = [] #[f'quote.{instrument}' for instrument in instruments]
# All public channels
public_channels = futures_channels
# All private channels
private_channels = [f'user.portfolio.BTC']
class Writer(AObserver):
def __init__(self):
pass
def update():
with urlopen(FNG_URL) as fng:
quick_write(FNG_FILE, dumps(loads(fng.read())))