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coinone.js
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'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, ExchangeNotAvailable, InvalidOrder, OrderNotFound } = require ('./base/errors');
// ---------------------------------------------------------------------------
module.exports = class coinone extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coinone',
'name': 'CoinOne',
'countries': [ 'KR' ], // Korea
'rateLimit': 667,
'version': 'v2',
'has': {
'CORS': false,
'createMarketOrder': false,
'fetchTickers': true,
'fetchOrder': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/38003300-adc12fba-323f-11e8-8525-725f53c4a659.jpg',
'api': 'https://api.coinone.co.kr',
'www': 'https://coinone.co.kr',
'doc': 'https://doc.coinone.co.kr',
},
'requiredCredentials': {
'apiKey': true,
'secret': true,
},
'api': {
'public': {
'get': [
'orderbook/',
'trades/',
'ticker/',
],
},
'private': {
'post': [
'account/btc_deposit_address/',
'account/balance/',
'account/daily_balance/',
'account/user_info/',
'account/virtual_account/',
'order/cancel_all/',
'order/cancel/',
'order/limit_buy/',
'order/limit_sell/',
'order/complete_orders/',
'order/limit_orders/',
'order/order_info/',
'transaction/auth_number/',
'transaction/history/',
'transaction/krw/history/',
'transaction/btc/',
'transaction/coin/',
],
},
},
'markets': {
'BCH/KRW': { 'id': 'bch', 'symbol': 'BCH/KRW', 'base': 'BCH', 'quote': 'KRW', 'baseId': 'bch', 'quoteId': 'krw' },
'BTC/KRW': { 'id': 'btc', 'symbol': 'BTC/KRW', 'base': 'BTC', 'quote': 'KRW', 'baseId': 'btc', 'quoteId': 'krw' },
'BTG/KRW': { 'id': 'btg', 'symbol': 'BTG/KRW', 'base': 'BTG', 'quote': 'KRW', 'baseId': 'btg', 'quoteId': 'krw' },
'ETC/KRW': { 'id': 'etc', 'symbol': 'ETC/KRW', 'base': 'ETC', 'quote': 'KRW', 'baseId': 'etc', 'quoteId': 'krw' },
'ETH/KRW': { 'id': 'eth', 'symbol': 'ETH/KRW', 'base': 'ETH', 'quote': 'KRW', 'baseId': 'eth', 'quoteId': 'krw' },
'IOTA/KRW': { 'id': 'iota', 'symbol': 'IOTA/KRW', 'base': 'IOTA', 'quote': 'KRW', 'baseId': 'iota', 'quoteId': 'krw' },
'LTC/KRW': { 'id': 'ltc', 'symbol': 'LTC/KRW', 'base': 'LTC', 'quote': 'KRW', 'baseId': 'ltc', 'quoteId': 'krw' },
'OMG/KRW': { 'id': 'omg', 'symbol': 'OMG/KRW', 'base': 'OMG', 'quote': 'KRW', 'baseId': 'omg', 'quoteId': 'krw' },
'QTUM/KRW': { 'id': 'qtum', 'symbol': 'QTUM/KRW', 'base': 'QTUM', 'quote': 'KRW', 'baseId': 'qtum', 'quoteId': 'krw' },
'XRP/KRW': { 'id': 'xrp', 'symbol': 'XRP/KRW', 'base': 'XRP', 'quote': 'KRW', 'baseId': 'xrp', 'quoteId': 'krw' },
'EOS/KRW': { 'id': 'eos', 'symbol': 'EOS/KRW', 'base': 'EOS', 'quote': 'KRW', 'baseId': 'eos', 'quoteId': 'krw' },
},
'fees': {
'trading': {
'tierBased': true,
'percentage': true,
'taker': 0.001,
'maker': 0.001,
'tiers': {
'taker': [
[0, 0.001],
[100000000, 0.0009],
[1000000000, 0.0008],
[5000000000, 0.0007],
[10000000000, 0.0006],
[20000000000, 0.0005],
[30000000000, 0.0004],
[40000000000, 0.0003],
[50000000000, 0.0002],
],
'maker': [
[0, 0.001],
[100000000, 0.0008],
[1000000000, 0.0006],
[5000000000, 0.0004],
[10000000000, 0.0002],
[20000000000, 0],
[30000000000, 0],
[40000000000, 0],
[50000000000, 0],
],
},
},
},
'exceptions': {
'405': ExchangeNotAvailable,
'104': OrderNotFound,
},
});
}
async fetchBalance (params = {}) {
let response = await this.privatePostAccountBalance ();
let result = { 'info': response };
let balances = this.omit (response, [
'errorCode',
'result',
'normalWallets',
]);
let ids = Object.keys (balances);
for (let i = 0; i < ids.length; i++) {
let id = ids[i];
let balance = balances[id];
let code = id.toUpperCase ();
if (id in this.currencies_by_id)
code = this.currencies_by_id[id]['code'];
let free = parseFloat (balance['avail']);
let total = parseFloat (balance['balance']);
let used = total - free;
let account = {
'free': free,
'used': used,
'total': total,
};
result[code] = account;
}
return this.parseBalance (result);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
let market = this.market (symbol);
let response = await this.publicGetOrderbook (this.extend ({
'currency': market['id'],
'format': 'json',
}, params));
return this.parseOrderBook (response, undefined, 'bid', 'ask', 'price', 'qty');
}
async fetchTickers (symbols = undefined, params = {}) {
await this.loadMarkets ();
let response = await this.publicGetTicker (this.extend ({
'currency': 'all',
'format': 'json',
}, params));
let result = {};
let tickers = response;
let ids = Object.keys (tickers);
for (let i = 0; i < ids.length; i++) {
let id = ids[i];
let symbol = id;
let market = undefined;
if (id in this.markets_by_id) {
market = this.markets_by_id[id];
symbol = market['symbol'];
let ticker = tickers[id];
result[symbol] = this.parseTicker (ticker, market);
}
}
return result;
}
async fetchTicker (symbol, params = {}) {
let market = this.market (symbol);
let response = await this.publicGetTicker (this.extend ({
'currency': market['id'],
'format': 'json',
}, params));
return this.parseTicker (response, market);
}
parseTicker (ticker, market = undefined) {
let timestamp = this.milliseconds ();
let last = this.safeFloat (ticker, 'last');
let previousClose = this.safeFloat (ticker, 'yesterday_last');
let change = undefined;
if (typeof last !== 'undefined' && typeof previousClose !== 'undefined')
change = previousClose - last;
let symbol = (typeof market !== 'undefined') ? market['symbol'] : undefined;
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeFloat (ticker, 'high'),
'low': this.safeFloat (ticker, 'low'),
'bid': undefined,
'bidVolume': undefined,
'ask': undefined,
'askVolume': undefined,
'vwap': undefined,
'open': this.safeFloat (ticker, 'first'),
'close': last,
'last': last,
'previousClose': previousClose,
'change': change,
'percentage': undefined,
'average': undefined,
'baseVolume': this.safeFloat (ticker, 'volume'),
'quoteVolume': undefined,
'info': ticker,
};
}
parseTrade (trade, market = undefined) {
let timestamp = parseInt (trade['timestamp']) * 1000;
let symbol = (typeof market !== 'undefined') ? market['symbol'] : undefined;
return {
'id': undefined,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'order': undefined,
'symbol': symbol,
'type': undefined,
'side': undefined,
'price': this.safeFloat (trade, 'price'),
'amount': this.safeFloat (trade, 'qty'),
'fee': undefined,
'info': trade,
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
let market = this.market (symbol);
let response = await this.publicGetTrades (this.extend ({
'currency': market['id'],
'period': 'hour',
'format': 'json',
}, params));
return this.parseTrades (response['completeOrders'], market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
if (type !== 'limit')
throw new ExchangeError (this.id + ' allows limit orders only');
await this.loadMarkets ();
let request = {
'price': price,
'currency': this.marketId (symbol),
'qty': amount,
};
let method = 'privatePostOrder' + this.capitalize (type) + this.capitalize (side);
let response = await this[method] (this.extend (request, params));
let id = this.safeString (response, 'orderId');
let timestamp = this.milliseconds ();
let cost = price * amount;
let order = {
'info': response,
'id': id,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'lastTradeTimestamp': undefined,
'symbol': symbol,
'type': type,
'side': side,
'price': price,
'cost': cost,
'average': undefined,
'amount': amount,
'filled': undefined,
'remaining': amount,
'status': 'open',
'fee': undefined,
};
this.orders[id] = order;
return order;
}
async fetchOrder (id, symbol = undefined, params = {}) {
await this.loadMarkets ();
let result = undefined;
let market = undefined;
if (typeof symbol === 'undefined') {
if (id in this.orders) {
market = this.market (this.orders[id]['symbol']);
} else {
throw new ExchangeError (this.id + ' fetchOrder() requires a symbol argument for order ids missing in the .orders cache (the order was created with a different instance of this class or within a different run of this code).');
}
} else {
market = this.market (symbol);
}
try {
let response = await this.privatePostOrderOrderInfo (this.extend ({
'order_id': id,
'currency': market['id'],
}, params));
result = this.parseOrder (response);
this.orders[id] = result;
} catch (e) {
if (e instanceof OrderNotFound) {
if (id in this.orders) {
this.orders[id]['status'] = 'canceled';
result = this.orders[id];
} else {
throw e;
}
} else {
throw e;
}
}
return result;
}
parseOrderStatus (status) {
let statuses = {
'live': 'open',
'partially_filled': 'open',
'filled': 'closed',
};
if (status in statuses)
return statuses[status];
return status;
}
parseOrder (order, market = undefined) {
let info = this.safeValue (order, 'info');
let id = this.safeString (info, 'orderId');
let timestamp = parseInt (info['timestamp']) * 1000;
let status = this.safeString (order, 'status');
status = this.parseOrderStatus (status);
let cost = undefined;
let side = this.safeString (info, 'type');
if (side.indexOf ('ask') >= 0) {
side = 'sell';
} else {
side = 'buy';
}
let price = this.safeFloat (info, 'price');
let amount = this.safeFloat (info, 'qty');
let remaining = this.safeFloat (info, 'remainQty');
let filled = undefined;
if (typeof amount !== 'undefined') {
if (typeof remaining !== 'undefined') {
filled = amount - remaining;
}
if (typeof price !== 'undefined') {
cost = price * amount;
}
}
let currency = this.safeString (info, 'currency');
let fee = {
'currency': currency,
'cost': this.safeFloat (info, 'fee'),
'rate': this.safeFloat (info, 'feeRate'),
};
let symbol = undefined;
if (typeof market === 'undefined') {
let marketId = currency.toLowerCase ();
if (marketId in this.markets_by_id)
market = this.markets_by_id[marketId];
}
if (typeof market !== 'undefined')
symbol = market['symbol'];
let result = {
'info': order,
'id': id,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'lastTradeTimestamp': undefined,
'symbol': symbol,
'type': 'limit',
'side': side,
'price': price,
'cost': cost,
'amount': amount,
'filled': filled,
'remaining': remaining,
'status': status,
'fee': fee,
};
return result;
}
async cancelOrder (id, symbol = undefined, params = {}) {
let order = this.safeValue (this.orders, id);
let amount = undefined;
let price = undefined;
let side = undefined;
if (typeof order === 'undefined') {
if (typeof symbol === 'undefined') {
// eslint-disable-next-line quotes
throw new InvalidOrder (this.id + " cancelOrder could not find the order id " + id + " in orders cache. The order was probably created with a different instance of this class earlier. The `symbol` argument is missing. To cancel the order, pass a symbol argument and {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument of cancelOrder.");
}
price = this.safeFloat (params, 'price');
if (typeof price === 'undefined') {
// eslint-disable-next-line quotes
throw new InvalidOrder (this.id + " cancelOrder could not find the order id " + id + " in orders cache. The order was probably created with a different instance of this class earlier. The `price` parameter is missing. To cancel the order, pass a symbol argument and {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument of cancelOrder.");
}
amount = this.safeFloat (params, 'qty');
if (typeof amount === 'undefined') {
// eslint-disable-next-line quotes
throw new InvalidOrder (this.id + " cancelOrder could not find the order id " + id + " in orders cache. The order was probably created with a different instance of this class earlier. The `qty` (amount) parameter is missing. To cancel the order, pass a symbol argument and {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument of cancelOrder.");
}
side = this.safeFloat (params, 'is_ask');
if (typeof side === 'undefined') {
// eslint-disable-next-line quotes
throw new InvalidOrder (this.id + " cancelOrder could not find the order id " + id + " in orders cache. The order was probably created with a different instance of this class earlier. The `is_ask` (side) parameter is missing. To cancel the order, pass a symbol argument and {'price': 12345, 'qty': 1.2345, 'is_ask': 0} in the params argument of cancelOrder.");
}
} else {
price = order['price'];
amount = order['amount'];
side = (order['side'] === 'buy') ? 0 : 1;
symbol = order['symbol'];
}
let request = {
'order_id': id,
'price': price,
'qty': amount,
'is_ask': side,
'currency': this.marketId (symbol),
};
return await this.privatePostOrderCancel (this.extend (request, params));
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let request = this.implodeParams (path, params);
let query = this.omit (params, this.extractParams (path));
let url = this.urls['api'] + '/';
if (api === 'public') {
url += request;
if (Object.keys (query).length) {
url += '?' + this.urlencode (query);
}
} else {
this.checkRequiredCredentials ();
url += this.version + '/' + request;
let nonce = this.nonce ().toString ();
let json = this.json (this.extend ({
'access_token': this.apiKey,
'nonce': nonce,
}, params));
let payload = this.stringToBase64 (this.encode (json));
body = this.decode (payload);
let secret = this.secret.toUpperCase ();
let signature = this.hmac (payload, this.encode (secret), 'sha512');
headers = {
'content-type': 'application/json',
'X-COINONE-PAYLOAD': payload,
'X-COINONE-SIGNATURE': signature,
};
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
handleErrors (code, reason, url, method, headers, body) {
if ((body[0] === '{') || (body[0] === '[')) {
let response = JSON.parse (body);
if ('result' in response) {
let result = response['result'];
if (result !== 'success') {
//
// { "errorCode": "405", "status": "maintenance", "result": "error"}
//
const code = this.safeString (response, 'errorCode');
const feedback = this.id + ' ' + this.json (response);
const exceptions = this.exceptions;
if (code in exceptions) {
throw new exceptions[code] (feedback);
} else {
throw new ExchangeError (feedback);
}
}
} else {
throw new ExchangeError (this.id + ' ' + body);
}
}
}
};