我想在 Python 中从 Poloniex 获取关于 BTC 到 USD 的整个交易历史。我已经输入了我的密钥和秘密。我有如下代码：
import urllib
import urllib2
import json
import time
import hmac,hashlib
def createTimeStamp(datestr, format="%Y-%m-%d %H:%M:%S"):
return time.mktime(time.strptime(datestr, format))
class poloniex:
def __init__(self, APIKey, Secret):
self.APIKey = APIKey
self.Secret = Secret
def post_process(self, before):
after = before
# Add timestamps if there isnt one but is a datetime
if('return' in after):
if(isinstance(after['return'], list)):
for x in xrange(0, len(after['return'])):
if(isinstance(after['return'][x], dict)):
if('datetime' in after['return'][x] and 'timestamp' not in after['return'][x]):
after['return'][x]['timestamp'] = float(createTimeStamp(after['return'][x]['datetime']))
return after
def api_query(self, command, req={}):
if(command == "returnTicker" or command == "return24Volume"):
ret = urllib2.urlopen(urllib2.Request('https://poloniex.com/public?command=' + command))
return json.loads(ret.read())
elif(command == "returnOrderBook"):
ret = urllib2.urlopen(urllib2.Request('https://poloniex.com/public?command=' + command + '¤cyPair=' + str(req['currencyPair'])))
return json.loads(ret.read())
elif(command == "returnMarketTradeHistory"):
ret = urllib2.urlopen(urllib2.Request('https://poloniex.com/public?command=' + "returnTradeHistory" + '¤cyPair=' + str(req['currencyPair'])))
return json.loads(ret.read())
else:
req['command'] = command
req['nonce'] = int(time.time()*1000)
post_data = urllib.urlencode(req)
sign = hmac.new(self.Secret, post_data, hashlib.sha512).hexdigest()
headers = {
'Sign': sign,
'Key': self.APIKey
}
ret = urllib2.urlopen(urllib2.Request('https://poloniex.com/tradingApi', post_data, headers))
jsonRet = json.loads(ret.read())
return self.post_process(jsonRet)
def returnTicker(self):
return self.api_query("returnTicker")
def return24Volume(self):
return self.api_query("return24Volume")
def returnOrderBook (self, currencyPair):
return self.api_query("returnOrderBook", {'currencyPair': currencyPair})
def returnMarketTradeHistory (self, currencyPair):
return self.api_query("returnMarketTradeHistory", {'currencyPair': currencyPair})
# Returns all of your balances.
# Outputs:
# {"BTC":"0.59098578","LTC":"3.31117268", ... }
def returnBalances(self):
return self.api_query('returnBalances')
# Returns your open orders for a given market, specified by the "currencyPair" POST parameter, e.g. "BTC_XCP"
# Inputs:
# currencyPair The currency pair e.g. "BTC_XCP"
# Outputs:
# orderNumber The order number
# type sell or buy
# rate Price the order is selling or buying at
# Amount Quantity of order
# total Total value of order (price * quantity)
def returnOpenOrders(self,currencyPair):
return self.api_query('returnOpenOrders',{"currencyPair":currencyPair})
# Returns your trade history for a given market, specified by the "currencyPair" POST parameter
# Inputs:
# currencyPair The currency pair e.g. "BTC_XCP"
# Outputs:
# date Date in the form: "2014-02-19 03:44:59"
# rate Price the order is selling or buying at
# amount Quantity of order
# total Total value of order (price * quantity)
# type sell or buy
def returnTradeHistory(self,currencyPair):
return self.api_query('returnTradeHistory',{"currencyPair":currencyPair})
# Places a buy order in a given market. Required POST parameters are "currencyPair", "rate", and "amount". If successful, the method will return the order number.
# Inputs:
# currencyPair The curreny pair
# rate price the order is buying at
# amount Amount of coins to buy
# Outputs:
# orderNumber The order number
def buy(self,currencyPair,rate,amount):
return self.api_query('buy',{"currencyPair":currencyPair,"rate":rate,"amount":amount})
# Places a sell order in a given market. Required POST parameters are "currencyPair", "rate", and "amount". If successful, the method will return the order number.
# Inputs:
# currencyPair The curreny pair
# rate price the order is selling at
# amount Amount of coins to sell
# Outputs:
# orderNumber The order number
def sell(self,currencyPair,rate,amount):
return self.api_query('sell',{"currencyPair":currencyPair,"rate":rate,"amount":amount})
# Cancels an order you have placed in a given market. Required POST parameters are "currencyPair" and "orderNumber".
# Inputs:
# currencyPair The curreny pair
# orderNumber The order number to cancel
# Outputs:
# succes 1 or 0
def cancel(self,currencyPair,orderNumber):
return self.api_query('cancelOrder',{"currencyPair":currencyPair,"orderNumber":orderNumber})
# Immediately places a withdrawal for a given currency, with no email confirmation. In order to use this method, the withdrawal privilege must be enabled for your API key. Required POST parameters are "currency", "amount", and "address". Sample output: {"response":"Withdrew 2398 NXT."}
# Inputs:
# currency The currency to withdraw
# amount The amount of this coin to withdraw
# address The withdrawal address
# Outputs:
# response Text containing message about the withdrawal
def withdraw(self, currency, amount, address):
return self.api_query('withdraw',{"currency":currency, "amount":amount, "address":address})
polo = poloniex('my_key', 'my_security')
print(polo.returnTradeHistory('BTC_ETH'))
#print(polo.returnTradeHistory('BTC_USDT))
我使用了如下方法：
print(polo.returnTradeHistory('BTC_ETH'))
但我得到空数组[]，我不知道为什么？您能否告诉我如何获取此交易历史并获取有关 BTC 到 USD 的信息，因为 BTC_USD 之类的东西不起作用。