Files
CoinTrader/xcoin_api_client.py
2018-01-04 09:40:02 +09:00

93 lines
2.3 KiB
Python

#
# XCoin API-call related functions
#
# @author btckorea
# @date 2017-04-12
#
# Compatible with python3 version.
import sys
import time
import math
import base64
import hmac, hashlib
import urllib.parse
import pycurl
import json
class XCoinAPI:
api_url = "https://api.bithumb.com"
api_key = ""
api_secret = ""
def __init__(self, api_key, api_secret):
self.api_key = api_key
self.api_secret = api_secret
self.contents = bytearray()
def body_callback(self, buf):
self.contents.extend(buf)
def microtime(self, get_as_float=False):
if get_as_float:
return time.time()
else:
return '%f %d' % math.modf(time.time())
def usec_time(self):
mt = self.microtime(False)
mt_array = mt.split(" ")[:2]
return mt_array[1] + mt_array[0][2:5]
def xcoinApiCall(self, endpoint, rgParams):
# 1. Api-Sign and Api-Nonce information generation.
# 2. Request related information from the Bithumb API server.
#
# - nonce: it is an arbitrary number that may only be used once.
# - api_sign: API signature information created in various combinations values.
endpoint_item_array = {
"endpoint": endpoint
}
self.contents = bytearray()
uri_array = dict(endpoint_item_array, **rgParams) # Concatenate the two arrays.
str_data = urllib.parse.urlencode(uri_array)
nonce = self.usec_time()
data = endpoint + chr(0) + str_data + chr(0) + nonce
utf8_data = data.encode('utf-8')
key = self.api_secret
utf8_key = key.encode('utf-8')
h = hmac.new(bytes(utf8_key), utf8_data, hashlib.sha512)
hex_output = h.hexdigest()
utf8_hex_output = hex_output.encode('utf-8')
api_sign = base64.b64encode(utf8_hex_output)
utf8_api_sign = api_sign.decode('utf-8')
curl_handle = pycurl.Curl()
curl_handle.setopt(pycurl.POST, 1)
curl_handle.setopt(pycurl.POSTFIELDS, str_data)
url = self.api_url + endpoint
curl_handle.setopt(curl_handle.URL, url)
curl_handle.setopt(curl_handle.HTTPHEADER, ['Api-Key: ' + self.api_key, 'Api-Sign: ' + utf8_api_sign, 'Api-Nonce: ' + nonce])
curl_handle.setopt(curl_handle.WRITEFUNCTION, self.body_callback)
curl_handle.perform()
# response_code = curl_handle.getinfo(pycurl.RESPONSE_CODE); # Get http response status code.
curl_handle.close()
try:
result = json.loads(self.contents.decode('utf-8'))
except:
result = None
return result