# -*- coding: utf-8 -*- from ccxt.base.exchange import Exchange import base64 import hashlib class btcchina (Exchange): def describe(self): return self.deep_extend(super(btcchina, self).describe(), { 'id': 'btcchina', 'name': 'BTCChina', 'countries': 'CN', 'rateLimit': 1500, 'version': 'v1', 'hasCORS': True, 'urls': { 'logo': 'https://user-images.githubusercontent.com/1294454/27766368-465b3286-5ed6-11e7-9a11-0f6467e1d82b.jpg', 'api': { 'plus': 'https://plus-api.btcchina.com/market', 'public': 'https://data.btcchina.com/data', 'private': 'https://api.btcchina.com/api_trade_v1.php', }, 'www': 'https://www.btcchina.com', 'doc': 'https://www.btcchina.com/apidocs' }, 'api': { 'plus': { 'get': [ 'orderbook', 'ticker', 'trade', ], }, 'public': { 'get': [ 'historydata', 'orderbook', 'ticker', 'trades', ], }, 'private': { 'post': [ 'BuyIcebergOrder', 'BuyOrder', 'BuyOrder2', 'BuyStopOrder', 'CancelIcebergOrder', 'CancelOrder', 'CancelStopOrder', 'GetAccountInfo', 'getArchivedOrder', 'getArchivedOrders', 'GetDeposits', 'GetIcebergOrder', 'GetIcebergOrders', 'GetMarketDepth', 'GetMarketDepth2', 'GetOrder', 'GetOrders', 'GetStopOrder', 'GetStopOrders', 'GetTransactions', 'GetWithdrawal', 'GetWithdrawals', 'RequestWithdrawal', 'SellIcebergOrder', 'SellOrder', 'SellOrder2', 'SellStopOrder', ], }, }, 'markets': { 'BTC/CNY': {'id': 'btccny', 'symbol': 'BTC/CNY', 'base': 'BTC', 'quote': 'CNY', 'api': 'public', 'plus': False}, 'LTC/CNY': {'id': 'ltccny', 'symbol': 'LTC/CNY', 'base': 'LTC', 'quote': 'CNY', 'api': 'public', 'plus': False}, 'LTC/BTC': {'id': 'ltcbtc', 'symbol': 'LTC/BTC', 'base': 'LTC', 'quote': 'BTC', 'api': 'public', 'plus': False}, 'BCH/CNY': {'id': 'bcccny', 'symbol': 'BCH/CNY', 'base': 'BCH', 'quote': 'CNY', 'api': 'plus', 'plus': True}, 'ETH/CNY': {'id': 'ethcny', 'symbol': 'ETH/CNY', 'base': 'ETH', 'quote': 'CNY', 'api': 'plus', 'plus': True}, }, }) def fetch_markets(self): markets = self.publicGetTicker({ 'market': 'all', }) result = [] keys = list(markets.keys()) for p in range(0, len(keys)): key = keys[p] market = markets[key] parts = key.split('_') id = parts[1] base = id[0:3] quote = id[3:6] base = base.upper() quote = quote.upper() symbol = base + '/' + quote result.append({ 'id': id, 'symbol': symbol, 'base': base, 'quote': quote, 'info': market, }) return result def fetch_balance(self, params={}): self.load_markets() response = self.privatePostGetAccountInfo() balances = response['result'] result = {'info': balances} currencies = list(self.currencies.keys()) for i in range(0, len(currencies)): currency = currencies[i] lowercase = currency.lower() account = self.account() if lowercase in balances['balance']: account['total'] = float(balances['balance'][lowercase]['amount']) if lowercase in balances['frozen']: account['used'] = float(balances['frozen'][lowercase]['amount']) account['free'] = account['total'] - account['used'] result[currency] = account return self.parse_balance(result) def create_market_request(self, market): request = {} field = 'symbol' if (market['plus']) else 'market' request[field] = market['id'] return request def fetch_order_book(self, symbol, params={}): self.load_markets() market = self.market(symbol) method = market['api'] + 'GetOrderbook' request = self.create_market_request(market) orderbook = getattr(self, method)(self.extend(request, params)) timestamp = orderbook['date'] * 1000 result = self.parse_order_book(orderbook, timestamp) result['asks'] = self.sort_by(result['asks'], 0) return result def parse_ticker(self, ticker, market): timestamp = ticker['date'] * 1000 return { 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), 'high': float(ticker['high']), 'low': float(ticker['low']), 'bid': float(ticker['buy']), 'ask': float(ticker['sell']), 'vwap': float(ticker['vwap']), 'open': float(ticker['open']), 'close': float(ticker['prev_close']), 'first': None, 'last': float(ticker['last']), 'change': None, 'percentage': None, 'average': None, 'baseVolume': float(ticker['vol']), 'quoteVolume': None, 'info': ticker, } def parse_ticker_plus(self, ticker, market): timestamp = ticker['Timestamp'] symbol = None if market: symbol = market['symbol'] return { 'symbol': symbol, 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), 'high': float(ticker['High']), 'low': float(ticker['Low']), 'bid': float(ticker['BidPrice']), 'ask': float(ticker['AskPrice']), 'vwap': None, 'open': float(ticker['Open']), 'close': float(ticker['PrevCls']), 'first': None, 'last': float(ticker['Last']), 'change': None, 'percentage': None, 'average': None, 'baseVolume': float(ticker['Volume24H']), 'quoteVolume': None, 'info': ticker, } def fetch_ticker(self, symbol, params={}): self.load_markets() market = self.market(symbol) method = market['api'] + 'GetTicker' request = self.create_market_request(market) tickers = getattr(self, method)(self.extend(request, params)) ticker = tickers['ticker'] if market['plus']: return self.parse_ticker_plus(ticker, market) return self.parse_ticker(ticker, market) def parse_trade(self, trade, market): timestamp = int(trade['date']) * 1000 return { 'id': trade['tid'], 'info': trade, 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), 'symbol': market['symbol'], 'type': None, 'side': None, 'price': trade['price'], 'amount': trade['amount'], } def parse_trade_plus(self, trade, market): timestamp = self.parse8601(trade['timestamp']) return { 'id': None, 'info': trade, 'timestamp': timestamp, 'datetime': self.iso8601(timestamp), 'symbol': market['symbol'], 'type': None, 'side': trade['side'].lower(), 'price': trade['price'], 'amount': trade['size'], } def parse_trades_plus(self, trades, market=None): result = [] for i in range(0, len(trades)): result.append(self.parse_trade_plus(trades[i], market)) return result def fetch_trades(self, symbol, since=None, limit=None, params={}): self.load_markets() market = self.market(symbol) method = market['api'] + 'GetTrade' request = self.create_market_request(market) if market['plus']: now = self.milliseconds() request['start_time'] = now - 86400 * 1000 request['end_time'] = now else: method += 's' # trades vs trade response = getattr(self, method)(self.extend(request, params)) if market['plus']: return self.parse_trades_plus(response['trades'], market) return self.parse_trades(response, market, since, limit) def create_order(self, symbol, type, side, amount, price=None, params={}): self.load_markets() market = self.market(symbol) method = 'privatePost' + self.capitalize(side) + 'Order2' order = {} id = market['id'].upper() if type == 'market': order['params'] = [None, amount, id] else: order['params'] = [price, amount, id] response = getattr(self, method)(self.extend(order, params)) return { 'info': response, 'id': response['id'], } def cancel_order(self, id, symbol=None, params={}): self.load_markets() market = params['market'] # TODO fixme return self.privatePostCancelOrder(self.extend({ 'params': [id, market], }, params)) def nonce(self): return self.microseconds() def sign(self, path, api='public', method='GET', params={}, headers=None, body=None): url = self.urls['api'][api] + '/' + path if api == 'private': self.check_required_credentials() p = [] if 'params' in params: p = params['params'] nonce = self.nonce() request = { 'method': path, 'id': nonce, 'params': p, } p = ','.join(p) body = self.json(request) query = ( 'tonce=' + nonce + '&accesskey=' + self.apiKey + '&requestmethod=' + method.lower() + '&id=' + nonce + '&method=' + path + '¶ms=' + p ) signature = self.hmac(self.encode(query), self.encode(self.secret), hashlib.sha1) auth = self.encode(self.apiKey + ':' + signature) headers = { 'Authorization': 'Basic ' + base64.b64encode(auth), 'Json-Rpc-Tonce': nonce, } else: if params: url += '?' + self.urlencode(params) return {'url': url, 'method': method, 'body': body, 'headers': headers}