mirror of
https://github.com/aljazceru/bitfinex-api-py.git
synced 2025-12-19 06:44:22 +01:00
501 lines
24 KiB
Python
501 lines
24 KiB
Python
import time, hmac, hashlib, json, requests
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from decimal import Decimal
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from datetime import datetime
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from http import HTTPStatus
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from typing import List, Union, Literal, Optional, Any, cast
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from . import serializers
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from .types import *
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from .enums import Config, Sort, OrderType, FundingOfferType, Error
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from .exceptions import ResourceNotFound, RequestParametersError, InvalidAuthenticationCredentials, UnknownGenericError
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from .. utils.encoder import JSONEncoder
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class BfxRestInterface(object):
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def __init__(self, host, API_KEY = None, API_SECRET = None):
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self.public = _RestPublicEndpoints(host=host)
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self.auth = _RestAuthenticatedEndpoints(host=host, API_KEY=API_KEY, API_SECRET=API_SECRET)
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class _Requests(object):
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def __init__(self, host, API_KEY = None, API_SECRET = None):
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self.host, self.API_KEY, self.API_SECRET = host, API_KEY, API_SECRET
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def __build_authentication_headers(self, endpoint, data):
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nonce = str(int(time.time()) * 1000)
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path = f"/api/v2/{endpoint}{nonce}"
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if data != None: path += data
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signature = hmac.new(
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self.API_SECRET.encode("utf8"),
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path.encode("utf8"),
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hashlib.sha384
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).hexdigest()
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return {
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"bfx-nonce": nonce,
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"bfx-signature": signature,
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"bfx-apikey": self.API_KEY
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}
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def _GET(self, endpoint, params = None):
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response = requests.get(f"{self.host}/{endpoint}", params=params)
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print(f"{self.host}/{endpoint}")
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if response.status_code == HTTPStatus.NOT_FOUND:
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raise ResourceNotFound(f"No resources found at endpoint <{endpoint}>.")
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data = response.json()
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if len(data) and data[0] == "error":
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if data[1] == Error.ERR_PARAMS:
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raise RequestParametersError(f"The request was rejected with the following parameter error: <{data[2]}>")
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if data[1] == None or data[1] == Error.ERR_UNK or data[1] == Error.ERR_GENERIC:
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raise UnknownGenericError(f"The server replied to the request with a generic error with message: <{data[2]}>.")
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return data
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def _POST(self, endpoint, params = None, data = None):
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headers = { "Content-Type": "application/json" }
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if isinstance(data, dict):
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data = json.dumps({ key: value for key, value in data.items() if value != None}, cls=JSONEncoder)
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if self.API_KEY and self.API_SECRET:
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headers = { **headers, **self.__build_authentication_headers(endpoint, data) }
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response = requests.post(f"{self.host}/{endpoint}", params=params, data=data, headers=headers)
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if response.status_code == HTTPStatus.NOT_FOUND:
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raise ResourceNotFound(f"No resources found at endpoint <{endpoint}>.")
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data = response.json()
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if len(data) and data[0] == "error":
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if data[1] == Error.ERR_PARAMS:
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raise RequestParametersError(f"The request was rejected with the following parameter error: <{data[2]}>")
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if data[1] == Error.ERR_AUTH_FAIL:
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raise InvalidAuthenticationCredentials("Cannot authenticate with given API-KEY and API-SECRET.")
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if data[1] == None or data[1] == Error.ERR_UNK or data[1] == Error.ERR_GENERIC:
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raise UnknownGenericError(f"The server replied to the request with a generic error with message: <{data[2]}>.")
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return data
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class _RestPublicEndpoints(_Requests):
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def get_platform_status(self) -> PlatformStatus:
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return serializers.PlatformStatus.parse(*self._GET("platform/status"))
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def get_tickers(self, symbols: List[str]) -> List[Union[TradingPairTicker, FundingCurrencyTicker]]:
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data = self._GET("tickers", params={ "symbols": ",".join(symbols) })
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parsers = { "t": serializers.TradingPairTicker.parse, "f": serializers.FundingCurrencyTicker.parse }
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return [ cast(Union[TradingPairTicker, FundingCurrencyTicker], parsers[sub_data[0][0]](*sub_data)) for sub_data in data ]
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def get_t_tickers(self, pairs: Union[List[str], Literal["ALL"]]) -> List[TradingPairTicker]:
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if isinstance(pairs, str) and pairs == "ALL":
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return [ cast(TradingPairTicker, sub_data) for sub_data in self.get_tickers([ "ALL" ]) if cast(str, sub_data.SYMBOL).startswith("t") ]
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data = self.get_tickers([ "t" + pair for pair in pairs ])
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return cast(List[TradingPairTicker], data)
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def get_f_tickers(self, currencies: Union[List[str], Literal["ALL"]]) -> List[FundingCurrencyTicker]:
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if isinstance(currencies, str) and currencies == "ALL":
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return [ cast(FundingCurrencyTicker, sub_data) for sub_data in self.get_tickers([ "ALL" ]) if cast(str, sub_data.SYMBOL).startswith("f") ]
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data = self.get_tickers([ "f" + currency for currency in currencies ])
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return cast(List[FundingCurrencyTicker], data)
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def get_t_ticker(self, pair: str) -> TradingPairTicker:
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return serializers.TradingPairTicker.parse(*self._GET(f"ticker/t{pair}"), skip=["SYMBOL"])
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def get_f_ticker(self, currency: str) -> FundingCurrencyTicker:
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return serializers.FundingCurrencyTicker.parse(*self._GET(f"ticker/f{currency}"), skip=["SYMBOL"])
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def get_tickers_history(self, symbols: List[str], start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[TickersHistory]:
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params = {
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"symbols": ",".join(symbols),
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"start": start, "end": end,
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"limit": limit
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}
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data = self._GET("tickers/hist", params=params)
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return [ serializers.TickersHistory.parse(*sub_data) for sub_data in data ]
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def get_t_trades(self, pair: str, limit: Optional[int] = None, start: Optional[str] = None, end: Optional[str] = None, sort: Optional[Sort] = None) -> List[TradingPairTrade]:
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params = { "limit": limit, "start": start, "end": end, "sort": sort }
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data = self._GET(f"trades/{'t' + pair}/hist", params=params)
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return [ serializers.TradingPairTrade.parse(*sub_data) for sub_data in data ]
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def get_f_trades(self, currency: str, limit: Optional[int] = None, start: Optional[str] = None, end: Optional[str] = None, sort: Optional[Sort] = None) -> List[FundingCurrencyTrade]:
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params = { "limit": limit, "start": start, "end": end, "sort": sort }
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data = self._GET(f"trades/{'f' + currency}/hist", params=params)
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return [ serializers.FundingCurrencyTrade.parse(*sub_data) for sub_data in data ]
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def get_t_book(self, pair: str, precision: Literal["P0", "P1", "P2", "P3", "P4"], len: Optional[Literal[1, 25, 100]] = None) -> List[TradingPairBook]:
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return [ serializers.TradingPairBook.parse(*sub_data) for sub_data in self._GET(f"book/{'t' + pair}/{precision}", params={ "len": len }) ]
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def get_f_book(self, currency: str, precision: Literal["P0", "P1", "P2", "P3", "P4"], len: Optional[Literal[1, 25, 100]] = None) -> List[FundingCurrencyBook]:
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return [ serializers.FundingCurrencyBook.parse(*sub_data) for sub_data in self._GET(f"book/{'f' + currency}/{precision}", params={ "len": len }) ]
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def get_t_raw_book(self, pair: str, len: Optional[Literal[1, 25, 100]] = None) -> List[TradingPairRawBook]:
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return [ serializers.TradingPairRawBook.parse(*sub_data) for sub_data in self._GET(f"book/{'t' + pair}/R0", params={ "len": len }) ]
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def get_f_raw_book(self, currency: str, len: Optional[Literal[1, 25, 100]] = None) -> List[FundingCurrencyRawBook]:
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return [ serializers.FundingCurrencyRawBook.parse(*sub_data) for sub_data in self._GET(f"book/{'f' + currency}/R0", params={ "len": len }) ]
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def get_stats_hist(
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self,
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resource: str,
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> List[Statistic]:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"stats1/{resource}/hist", params=params)
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return [ serializers.Statistic.parse(*sub_data) for sub_data in data ]
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def get_stats_last(
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self,
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resource: str,
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> Statistic:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"stats1/{resource}/last", params=params)
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return serializers.Statistic.parse(*data)
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def get_candles_hist(
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self,
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symbol: str, tf: str = "1m",
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> List[Candle]:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"candles/trade:{tf}:{symbol}/hist", params=params)
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return [ serializers.Candle.parse(*sub_data) for sub_data in data ]
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def get_candles_last(
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self,
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symbol: str, tf: str = "1m",
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> Candle:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"candles/trade:{tf}:{symbol}/last", params=params)
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return serializers.Candle.parse(*data)
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def get_derivatives_status(self, keys: Union[List[str], Literal["ALL"]]) -> List[DerivativesStatus]:
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if keys == "ALL":
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params = { "keys": "ALL" }
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else: params = { "keys": ",".join(keys) }
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data = self._GET(f"status/deriv", params=params)
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return [ serializers.DerivativesStatus.parse(*sub_data) for sub_data in data ]
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def get_derivatives_status_history(
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self,
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type: str, symbol: str,
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> List[DerivativesStatus]:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"status/{type}/{symbol}/hist", params=params)
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return [ serializers.DerivativesStatus.parse(*sub_data, skip=[ "KEY" ]) for sub_data in data ]
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def get_liquidations(self, sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Liquidation]:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET("liquidations/hist", params=params)
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return [ serializers.Liquidation.parse(*sub_data[0]) for sub_data in data ]
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def get_seed_candles(self, symbol: str, tf: str = '1m', sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Candle]:
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params = {"sort": sort, "start": start, "end": end, "limit": limit}
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data = self._GET(f"candles/trade:{tf}:{symbol}/hist?limit={limit}&start={start}&end={end}&sort={sort}", params=params)
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return [ serializers.Candle.parse(*sub_data) for sub_data in data ]
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def get_leaderboards_hist(
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self,
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resource: str,
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> List[Leaderboard]:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"rankings/{resource}/hist", params=params)
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return [ serializers.Leaderboard.parse(*sub_data) for sub_data in data ]
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def get_leaderboards_last(
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self,
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resource: str,
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sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None
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) -> Leaderboard:
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params = { "sort": sort, "start": start, "end": end, "limit": limit }
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data = self._GET(f"rankings/{resource}/last", params=params)
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return serializers.Leaderboard.parse(*data)
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def get_funding_stats(self, symbol: str, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[FundingStatistic]:
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params = { "start": start, "end": end, "limit": limit }
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data = self._GET(f"funding/stats/{symbol}/hist", params=params)
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return [ serializers.FundingStatistic.parse(*sub_data) for sub_data in data ]
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def conf(self, config: Config) -> Any:
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return self._GET(f"conf/{config}")[0]
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def get_pulse_profile(self, nickname: str) -> PulseProfile:
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return serializers.PulseProfile.parse(*self._GET(f"pulse/profile/{nickname}"))
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def get_pulse_history(self, end: Optional[str] = None, limit: Optional[int] = None) -> List[PulseMessage]:
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messages = list()
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for subdata in self._GET("pulse/hist", params={ "end": end, "limit": limit }):
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subdata[18] = subdata[18][0]
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message = serializers.PulseMessage.parse(*subdata)
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messages.append(message)
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return messages
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def get_trading_market_average_price(self, symbol: str, amount: Union[Decimal, float, str], price_limit: Optional[Union[Decimal, float, str]] = None) -> TradingMarketAveragePrice:
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data = {
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"symbol": symbol, "amount": amount, "price_limit": price_limit
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}
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return serializers.TradingMarketAveragePrice.parse(*self._POST("calc/trade/avg", data=data))
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def get_funding_market_average_price(self, symbol: str, amount: Union[Decimal, float, str], period: int, rate_limit: Optional[Union[Decimal, float, str]] = None) -> FundingMarketAveragePrice:
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data = {
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"symbol": symbol, "amount": amount, "period": period,
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"rate_limit": rate_limit
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}
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return serializers.FundingMarketAveragePrice.parse(*self._POST("calc/trade/avg", data=data))
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def get_fx_rate(self, ccy1: str, ccy2: str) -> FxRate:
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return serializers.FxRate.parse(*self._POST("calc/fx", data={ "ccy1": ccy1, "ccy2": ccy2 }))
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class _RestAuthenticatedEndpoints(_Requests):
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def get_wallets(self) -> List[Wallet]:
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return [ serializers.Wallet.parse(*sub_data) for sub_data in self._POST("auth/r/wallets") ]
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def get_orders(self, symbol: Optional[str] = None, ids: Optional[List[str]] = None) -> List[Order]:
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endpoint = "auth/r/orders"
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if symbol != None:
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endpoint += f"/{symbol}"
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return [ serializers.Order.parse(*sub_data) for sub_data in self._POST(endpoint, data={ "id": ids }) ]
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def get_positions(self) -> List[Position]:
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return [ serializers.Position.parse(*sub_data) for sub_data in self._POST("auth/r/positions") ]
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def submit_order(self, type: OrderType, symbol: str, amount: Union[Decimal, float, str],
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price: Optional[Union[Decimal, float, str]] = None, lev: Optional[int] = None,
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price_trailing: Optional[Union[Decimal, float, str]] = None, price_aux_limit: Optional[Union[Decimal, float, str]] = None, price_oco_stop: Optional[Union[Decimal, float, str]] = None,
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gid: Optional[int] = None, cid: Optional[int] = None,
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flags: Optional[int] = 0, tif: Optional[Union[datetime, str]] = None, meta: Optional[JSON] = None) -> Notification[Order]:
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data = {
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"type": type, "symbol": symbol, "amount": amount,
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"price": price, "lev": lev,
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"price_trailing": price_trailing, "price_aux_limit": price_aux_limit, "price_oco_stop": price_oco_stop,
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"gid": gid, "cid": cid,
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"flags": flags, "tif": tif, "meta": meta
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}
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return serializers._Notification[Order](serializer=serializers.Order).parse(*self._POST("auth/w/order/submit", data=data))
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def update_order(self, id: int, amount: Optional[Union[Decimal, float, str]] = None, price: Optional[Union[Decimal, float, str]] = None,
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cid: Optional[int] = None, cid_date: Optional[str] = None, gid: Optional[int] = None,
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flags: Optional[int] = 0, lev: Optional[int] = None, delta: Optional[Union[Decimal, float, str]] = None,
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price_aux_limit: Optional[Union[Decimal, float, str]] = None, price_trailing: Optional[Union[Decimal, float, str]] = None, tif: Optional[Union[datetime, str]] = None) -> Notification[Order]:
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data = {
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"id": id, "amount": amount, "price": price,
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"cid": cid, "cid_date": cid_date, "gid": gid,
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"flags": flags, "lev": lev, "delta": delta,
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"price_aux_limit": price_aux_limit, "price_trailing": price_trailing, "tif": tif
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}
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return serializers._Notification[Order](serializer=serializers.Order).parse(*self._POST("auth/w/order/update", data=data))
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def cancel_order(self, id: Optional[int] = None, cid: Optional[int] = None, cid_date: Optional[str] = None) -> Notification[Order]:
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data = {
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"id": id,
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"cid": cid,
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"cid_date": cid_date
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}
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return serializers._Notification[Order](serializer=serializers.Order).parse(*self._POST("auth/w/order/cancel", data=data))
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def cancel_order_multi(self, ids: Optional[List[int]] = None, cids: Optional[List[Tuple[int, str]]] = None, gids: Optional[List[int]] = None, all: bool = False) -> Notification[List[Order]]:
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data = {
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"ids": ids,
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"cids": cids,
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"gids": gids,
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"all": int(all)
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}
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return serializers._Notification[List[Order]](serializer=serializers.Order, iterate=True).parse(*self._POST("auth/w/order/cancel/multi", data=data))
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def get_orders_history(self, symbol: Optional[str] = None, ids: Optional[List[int]] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Order]:
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if symbol == None:
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endpoint = "auth/r/orders/hist"
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else: endpoint = f"auth/r/orders/{symbol}/hist"
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data = {
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"id": ids,
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"start": start, "end": end,
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"limit": limit
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}
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return [ serializers.Order.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
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def get_trades_history(self, symbol: Optional[str] = None, sort: Optional[Sort] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Trade]:
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if symbol == None:
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endpoint = "auth/r/trades/hist"
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else: endpoint = f"auth/r/trades/{symbol}/hist"
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data = {
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"sort": sort,
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"start": start, "end": end,
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"limit": limit
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}
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return [ serializers.Trade.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
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def get_order_trades(self, symbol: str, id: int) -> List[OrderTrade]:
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return [ serializers.OrderTrade.parse(*sub_data) for sub_data in self._POST(f"auth/r/order/{symbol}:{id}/trades") ]
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def get_ledgers(self, currency: str, category: Optional[int] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Ledger]:
|
|
data = {
|
|
"category": category,
|
|
"start": start, "end": end,
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|
"limit": limit
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|
}
|
|
|
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return [ serializers.Ledger.parse(*sub_data) for sub_data in self._POST(f"auth/r/ledgers/{currency}/hist", data=data) ]
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|
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def get_funding_offers(self, symbol: Optional[str] = None) -> List[FundingOffer]:
|
|
endpoint = "auth/r/funding/offers"
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|
|
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if symbol != None:
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endpoint += f"/{symbol}"
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|
|
|
return [ serializers.FundingOffer.parse(*sub_data) for sub_data in self._POST(endpoint) ]
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|
|
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def submit_funding_offer(self, type: FundingOfferType, symbol: str, amount: Union[Decimal, float, str],
|
|
rate: Union[Decimal, float, str], period: int,
|
|
flags: Optional[int] = 0) -> Notification[FundingOffer]:
|
|
data = {
|
|
"type": type, "symbol": symbol, "amount": amount,
|
|
"rate": rate, "period": period,
|
|
"flags": flags
|
|
}
|
|
|
|
return serializers._Notification[FundingOffer](serializer=serializers.FundingOffer).parse(*self._POST("auth/w/funding/offer/submit", data=data))
|
|
|
|
def cancel_funding_offer(self, id: int) -> Notification[FundingOffer]:
|
|
return serializers._Notification[FundingOffer](serializer=serializers.FundingOffer).parse(*self._POST("auth/w/funding/offer/cancel", data={ "id": id }))
|
|
|
|
def get_funding_offers_history(self, symbol: Optional[str] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[FundingOffer]:
|
|
if symbol == None:
|
|
endpoint = "auth/r/funding/offers/hist"
|
|
else: endpoint = f"auth/r/funding/offers/{symbol}/hist"
|
|
|
|
data = {
|
|
"start": start, "end": end,
|
|
"limit": limit
|
|
}
|
|
|
|
return [ serializers.FundingOffer.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
|
|
|
|
def get_funding_credits(self, symbol: Optional[str] = None) -> List[FundingCredit]:
|
|
if symbol == None:
|
|
endpoint = "auth/r/funding/credits"
|
|
else: endpoint = f"auth/r/funding/credits/{symbol}"
|
|
|
|
return [ serializers.FundingCredit.parse(*sub_data) for sub_data in self._POST(endpoint) ]
|
|
|
|
def get_funding_credits_history(self, symbol: Optional[str] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[FundingCredit]:
|
|
if symbol == None:
|
|
endpoint = "auth/r/funding/credits/hist"
|
|
else: endpoint = f"auth/r/funding/credits/{symbol}/hist"
|
|
|
|
data = {
|
|
"start": start, "end": end,
|
|
"limit": limit
|
|
}
|
|
|
|
return [ serializers.FundingCredit.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
|
|
|
|
def submit_wallet_transfer(self, from_wallet: str, to_wallet: str, currency: str, currency_to: str, amount: Union[Decimal, float, str]) -> Notification[Transfer]:
|
|
data = {
|
|
"from": from_wallet, "to": to_wallet,
|
|
"currency": currency, "currency_to": currency_to,
|
|
"amount": amount
|
|
}
|
|
|
|
return serializers._Notification[Transfer](serializer=serializers.Transfer).parse(*self._POST("auth/w/transfer", data=data))
|
|
|
|
def submit_wallet_withdraw(self, wallet: str, method: str, address: str, amount: Union[Decimal, float, str]) -> Notification[Withdrawal]:
|
|
data = {
|
|
"wallet": wallet, "method": method,
|
|
"address": address, "amount": amount,
|
|
}
|
|
|
|
return serializers._Notification[Withdrawal](serializer=serializers.Withdrawal).parse(*self._POST("auth/w/withdraw", data=data))
|
|
|
|
def get_deposit_address(self, wallet: str, method: str, renew: bool = False) -> Notification[DepositAddress]:
|
|
data = {
|
|
"wallet": wallet,
|
|
"method": method,
|
|
"renew": int(renew)
|
|
}
|
|
|
|
return serializers._Notification[DepositAddress](serializer=serializers.DepositAddress).parse(*self._POST("auth/w/deposit/address", data=data))
|
|
|
|
def get_deposit_invoice(self, wallet: str, currency: str, amount: Union[Decimal, float, str]) -> Invoice:
|
|
data = {
|
|
"wallet": wallet, "currency": currency,
|
|
"amount": amount
|
|
}
|
|
|
|
return serializers.Invoice.parse(*self._POST("auth/w/deposit/invoice", data=data))
|
|
|
|
def get_movements(self, currency: Optional[str] = None, start: Optional[str] = None, end: Optional[str] = None, limit: Optional[int] = None) -> List[Movement]:
|
|
if currency == None:
|
|
endpoint = "auth/r/movements/hist"
|
|
else: endpoint = f"auth/r/movements/{currency}/hist"
|
|
|
|
data = {
|
|
"start": start, "end": end,
|
|
"limit": limit
|
|
}
|
|
|
|
return [ serializers.Movement.parse(*sub_data) for sub_data in self._POST(endpoint, data=data) ]
|
|
|
|
def get_symbol_margin_info(self, symbol: str) -> SymbolMarginInfo:
|
|
data = self._POST(f"auth/r/info/margin/{symbol}")
|
|
|
|
return serializers.SymbolMarginInfo.parse(*([data[1]] + data[2]))
|
|
|
|
def get_all_symbols_margin_info(self) -> List[SymbolMarginInfo]:
|
|
return [ serializers.SymbolMarginInfo.parse(*([sub_data[1]] + sub_data[2])) for sub_data in self._POST(f"auth/r/info/margin/sym_all") ]
|
|
|
|
def get_base_margin_info(self) -> BaseMarginInfo:
|
|
return serializers.BaseMarginInfo.parse(*(self._POST(f"auth/r/info/margin/base")[1]))
|
|
|
|
def claim_position(self, id: int, amount: Optional[Union[Decimal, float, str]] = None) -> Notification[Claim]:
|
|
return serializers._Notification[Claim](serializer=serializers.Claim).parse(*self._POST("auth/w/position/claim", data={ "id": id, "amount": amount })) |