Files
bitfinex-api-py/bfxapi/rest/BfxRest.py
2018-12-05 14:57:33 +00:00

200 lines
8.3 KiB
Python

import asyncio
import aiohttp
import time
import json
from ..utils.CustomLogger import CustomLogger
from ..utils.auth import generate_auth_headers
from ..models import Wallet, Order, Position, Trade, FundingLoan, FundingOffer
from ..models import FundingCredit
class BfxRest:
def __init__(self, API_KEY, API_SECRET, host='https://api.bitfinex.com/v2', loop=None,
logLevel='INFO', *args, **kwargs):
self.loop = loop or asyncio.get_event_loop()
self.API_KEY = API_KEY
self.API_SECRET = API_SECRET
self.host = host
self.logger = CustomLogger('BfxRest', logLevel=logLevel)
async def fetch(self, endpoint, params=""):
url = '{}/{}{}'.format(self.host, endpoint, params)
async with aiohttp.ClientSession() as session:
async with session.get(url) as resp:
text = await resp.text()
if resp.status is not 200:
raise Exception('GET {} failed with status {} - {}'
.format(url, resp.status, text))
return await resp.json()
async def post(self, endpoint, data={}, params=""):
url = '{}/{}'.format(self.host, endpoint)
sData = json.dumps(data)
headers = generate_auth_headers(
self.API_KEY, self.API_SECRET, endpoint, sData)
headers["content-type"] = "application/json"
async with aiohttp.ClientSession() as session:
async with session.post(url + params, headers=headers, data=sData) as resp:
text = await resp.text()
if resp.status is not 200:
raise Exception('POST {} failed with status {} - {}'
.format(url, resp.status, text))
return await resp.json()
##################################################
# Public Data #
##################################################
async def get_seed_candles(self, symbol):
endpoint = 'candles/trade:1m:{}/hist?limit=5000&_bfx=1'.format(symbol)
time_difference = (1000 * 60) * 5000
# get now to the nearest min
now = int(round((time.time() // 60 * 60) * 1000))
task_batch = []
for x in range(0, 10):
start = x * time_difference
end = now - (x * time_difference) - time_difference
e2 = endpoint + '&start={}&end={}'.format(start, end)
task_batch += [asyncio.ensure_future(self.fetch(e2))]
self.logger.info("Downloading seed candles from Bitfinex...")
# call all fetch requests async
done, _ = await asyncio.wait(*[ task_batch ])
candles = []
for task in done:
candles += task.result()
candles.sort(key=lambda x: x[0], reverse=True)
self.logger.info("Downloaded {} candles.".format(len(candles)))
return candles
async def get_public_candles(self, symbol, start, end, section='hist',
tf='1m', limit="100", sort=-1):
endpoint = "candles/trade:{}:{}/{}".format(tf, symbol, section)
params = "?start={}&end={}&limit={}&sort={}".format(start, end, limit, sort)
candles = await self.fetch(endpoint, params=params)
return candles
async def get_public_trades(self, symbol, start, end, limit="100", sort=-1):
endpoint = "trades/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}&sort={}".format(start, end, limit, sort)
trades = await self.fetch(endpoint, params=params)
return trades
async def get_public_books(self, symbol, precision="P0", length=25):
endpoint = "book/{}/{}".format(symbol, precision)
params = "?len={}".format(length)
books = await self.fetch(endpoint, params)
return books
async def get_public_ticker(self, symbol):
endpoint = "ticker/{}".format(symbol)
ticker = await self.fetch(endpoint)
return ticker
##################################################
# Authenticated Data #
##################################################
async def get_wallets(self):
endpoint = "auth/r/wallets"
raw_wallets = await self.post(endpoint)
return [ Wallet(*rw[:4]) for rw in raw_wallets ]
async def get_active_orders(self, symbol):
endpoint = "auth/r/orders/{}".format(symbol)
raw_orders = await self.post(endpoint)
return [ Order.from_raw_order(ro) for ro in raw_orders ]
async def get_order_history(self, symbol, start, end, limit=25, sort=-1):
endpoint = "auth/r/orders/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}&sort={}".format(start, end, limit, sort)
raw_orders = await self.post(endpoint, params=params)
return [ Order.from_raw_order(ro) for ro in raw_orders ]
async def get_active_position(self):
endpoint = "auth/r/positions"
raw_positions = await self.post(endpoint)
return [ Position.from_raw_rest_position(rp) for rp in raw_positions ]
async def get_trades(self, symbol, start, end, limit=25):
endpoint = "auth/r/trades/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}".format(start, end, limit)
raw_trades = await self.post(endpoint, params=params)
return [ Trade.from_raw_rest_trade(rt) for rt in raw_trades ]
async def get_funding_offers(self, symbol):
endpoint = "auth/r/funding/offers/{}".format(symbol)
offers = await self.post(endpoint)
return [ FundingOffer.from_raw_offer(o) for o in offers ]
async def get_funding_offer_history(self, symbol, start, end, limit=25):
endpoint = "auth/r/funding/offers/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}".format(start, end, limit)
offers = await self.post(endpoint, params=params)
return [ FundingOffer.from_raw_offer(o) for o in offers ]
async def get_funding_loans(self, symbol):
endpoint = "auth/r/funding/loans/{}".format(symbol)
loans = await self.post(endpoint)
return [ FundingLoan.from_raw_loan(o) for o in loans ]
async def get_funding_loan_history(self, symbol, start, end, limit=25):
endpoint = "auth/r/funding/loans/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}".format(start, end, limit)
loans = await self.post(endpoint, params=params)
return [ FundingLoan.from_raw_loan(o) for o in loans ]
async def get_funding_credits(self, symbol):
endpoint = "auth/r/funding/credits/{}".format(symbol)
credits = await self.post(endpoint)
return [ FundingCredit.from_raw_credit(c) for c in credits]
async def get_funding_credit_history(self, symbol, start, end, limit=25):
endpoint = "auth/r/funding/credits/{}/hist".format(symbol)
params = "?start={}&end={}&limit={}".format(start, end, limit)
credits = await self.post(endpoint, params=params)
return [ FundingCredit.from_raw_credit(c) for c in credits]
##################################################
# Orders #
##################################################
async def __submit_order(self, symbol, amount, price, oType=Order.Type.LIMIT,
is_hidden=False, is_postonly=False, use_all_available=False, stop_order=False,
stop_buy_price=0, stop_sell_price=0):
"""
Submit a new order
@param symbol: the name of the symbol i.e 'tBTCUSD
@param amount: order size: how much you want to buy/sell,
a negative amount indicates a sell order and positive a buy order
@param price: the price you want to buy/sell at (must be positive)
@param oType: order type, see Order.Type enum
@param is_hidden: True if order should be hidden from orderbooks
@param is_postonly: True if should be post only. Only relevant for limit
@param use_all_available: True if order should use entire balance
@param stop_order: True to set an additional STOP OCO order linked to the
current order
@param stop_buy_price: set the OCO stop buy price (requires stop_order True)
@param stop_sell_price: set the OCO stop sell price (requires stop_order True)
"""
raise NotImplementedError(
"V2 submit order has not yet been added to the bfx api. Please use bfxapi.ws")
side = Order.Side.SELL if amount < 0 else Order.Side.BUY
use_all_balance = 1 if use_all_available else 0
payload = {}
payload['symbol'] = symbol
payload['amount'] = abs(amount)
payload['price'] = price
payload['side'] = side
payload['type'] = oType
payload['is_hidden'] = is_hidden
payload['is_postonly'] = is_postonly
payload['use_all_available'] = use_all_balance
payload['ocoorder'] = stop_order
if stop_order:
payload['buy_price_oco'] = stop_buy_price
payload['sell_price_oco'] = stop_sell_price
endpoint = 'order/new'
return await self.post(endpoint, data=payload)