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bitstamp.js
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'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { AuthenticationError, BadRequest, ExchangeError, NotSupported, PermissionDenied, InvalidNonce, OrderNotFound, InsufficientFunds, InvalidAddress, InvalidOrder, OnMaintenance, ExchangeNotAvailable } = require ('./base/errors');
const { TICK_SIZE } = require ('./base/functions/number');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class bitstamp extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'bitstamp',
'name': 'Bitstamp',
'countries': [ 'GB' ],
// 8000 requests per 10 minutes = 8000 / 600 = 13.33333333 requests per second => 1000ms / 13.33333333 = 75ms between requests on average
'rateLimit': 75,
'version': 'v2',
'userAgent': this.userAgents['chrome'],
'pro': true,
'has': {
'CORS': true,
'spot': true,
'margin': false,
'swap': false,
'future': false,
'option': false,
'addMargin': false,
'cancelAllOrders': true,
'cancelOrder': true,
'createOrder': true,
'createReduceOnlyOrder': false,
'createStopLimitOrder': false,
'createStopMarketOrder': false,
'createStopOrder': false,
'fetchBalance': true,
'fetchBorrowRate': false,
'fetchBorrowRateHistories': false,
'fetchBorrowRateHistory': false,
'fetchBorrowRates': false,
'fetchBorrowRatesPerSymbol': false,
'fetchCurrencies': true,
'fetchDepositAddress': true,
'fetchDepositWithdrawFee': 'emulated',
'fetchDepositWithdrawFees': true,
'fetchFundingHistory': false,
'fetchFundingRate': false,
'fetchFundingRateHistory': false,
'fetchFundingRates': false,
'fetchIndexOHLCV': false,
'fetchLedger': true,
'fetchLeverage': false,
'fetchMarginMode': false,
'fetchMarkets': true,
'fetchMarkOHLCV': false,
'fetchMyTrades': true,
'fetchOHLCV': true,
'fetchOpenInterestHistory': false,
'fetchOpenOrders': true,
'fetchOrder': true,
'fetchOrderBook': true,
'fetchPosition': false,
'fetchPositionMode': false,
'fetchPositions': false,
'fetchPositionsRisk': false,
'fetchPremiumIndexOHLCV': false,
'fetchTicker': true,
'fetchTrades': true,
'fetchTradingFee': true,
'fetchTradingFees': true,
'fetchTransactionFees': true,
'fetchTransactions': true,
'fetchWithdrawals': true,
'reduceMargin': false,
'setLeverage': false,
'setMarginMode': false,
'setPositionMode': false,
'withdraw': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/27786377-8c8ab57e-5fe9-11e7-8ea4-2b05b6bcceec.jpg',
'api': {
'public': 'https://www.bitstamp.net/api',
'private': 'https://www.bitstamp.net/api',
},
'www': 'https://www.bitstamp.net',
'doc': 'https://www.bitstamp.net/api',
},
'timeframes': {
'1m': '60',
'3m': '180',
'5m': '300',
'15m': '900',
'30m': '1800',
'1h': '3600',
'2h': '7200',
'4h': '14400',
'6h': '21600',
'12h': '43200',
'1d': '86400',
'1w': '259200',
},
'requiredCredentials': {
'apiKey': true,
'secret': true,
},
'api': {
'public': {
'get': {
'ohlc/{pair}/': 1,
'order_book/{pair}/': 1,
'ticker_hour/{pair}/': 1,
'ticker/{pair}/': 1,
'transactions/{pair}/': 1,
'trading-pairs-info/': 1,
},
},
'private': {
'post': {
'balance/': 1,
'balance/{pair}/': 1,
'bch_withdrawal/': 1,
'bch_address/': 1,
'user_transactions/': 1,
'user_transactions/{pair}/': 1,
'open_orders/all/': 1,
'open_orders/{pair}/': 1,
'order_status/': 1,
'cancel_order/': 1,
'cancel_all_orders/': 1,
'cancel_all_orders/{pair}/': 1,
'buy/{pair}/': 1,
'buy/market/{pair}/': 1,
'buy/instant/{pair}/': 1,
'sell/{pair}/': 1,
'sell/market/{pair}/': 1,
'sell/instant/{pair}/': 1,
'transfer-to-main/': 1,
'transfer-from-main/': 1,
'withdrawal-requests/': 1,
'withdrawal/open/': 1,
'withdrawal/status/': 1,
'withdrawal/cancel/': 1,
'liquidation_address/new/': 1,
'liquidation_address/info/': 1,
'btc_unconfirmed/': 1,
'websockets_token/': 1,
// individual coins
'btc_withdrawal/': 1,
'btc_address/': 1,
'ripple_withdrawal/': 1,
'ripple_address/': 1,
'ltc_withdrawal/': 1,
'ltc_address/': 1,
'eth_withdrawal/': 1,
'eth_address/': 1,
'xrp_withdrawal/': 1,
'xrp_address/': 1,
'xlm_withdrawal/': 1,
'xlm_address/': 1,
'pax_withdrawal/': 1,
'pax_address/': 1,
'link_withdrawal/': 1,
'link_address/': 1,
'usdc_withdrawal/': 1,
'usdc_address/': 1,
'omg_withdrawal/': 1,
'omg_address/': 1,
'dai_withdrawal/': 1,
'dai_address/': 1,
'knc_withdrawal/': 1,
'knc_address/': 1,
'mkr_withdrawal/': 1,
'mkr_address/': 1,
'zrx_withdrawal/': 1,
'zrx_address/': 1,
'gusd_withdrawal/': 1,
'gusd_address/': 1,
'aave_withdrawal/': 1,
'aave_address/': 1,
'bat_withdrawal/': 1,
'bat_address/': 1,
'uma_withdrawal/': 1,
'uma_address/': 1,
'snx_withdrawal/': 1,
'snx_address/': 1,
'uni_withdrawal/': 1,
'uni_address/': 1,
'yfi_withdrawal/': 1,
'yfi_address': 1,
'audio_withdrawal/': 1,
'audio_address/': 1,
'crv_withdrawal/': 1,
'crv_address/': 1,
'algo_withdrawal/': 1,
'algo_address/': 1,
'comp_withdrawal/': 1,
'comp_address/': 1,
'grt_withdrawal': 1,
'grt_address/': 1,
'usdt_withdrawal/': 1,
'usdt_address/': 1,
'eurt_withdrawal/': 1,
'eurt_address/': 1,
'matic_withdrawal/': 1,
'matic_address/': 1,
'sushi_withdrawal/': 1,
'sushi_address/': 1,
'chz_withdrawal/': 1,
'chz_address/': 1,
'enj_withdrawal/': 1,
'enj_address/': 1,
'alpha_withdrawal/': 1,
'alpha_address/': 1,
'ftt_withdrawal/': 1,
'ftt_address/': 1,
'storj_withdrawal/': 1,
'storj_address/': 1,
'axs_withdrawal/': 1,
'axs_address/': 1,
'sand_withdrawal/': 1,
'sand_address/': 1,
'hbar_withdrawal/': 1,
'hbar_address/': 1,
'rgt_withdrawal/': 1,
'rgt_address/': 1,
'fet_withdrawal/': 1,
'fet_address/': 1,
'skl_withdrawal/': 1,
'skl_address/': 1,
'cel_withdrawal/': 1,
'cel_address/': 1,
'sxp_withdrawal/': 1,
'sxp_address/': 1,
'ada_withdrawal/': 1,
'ada_address/': 1,
'slp_withdrawal/': 1,
'slp_address/': 1,
'ftm_withdrawal/': 1,
'ftm_address/': 1,
'perp_withdrawal/': 1,
'perp_address/': 1,
'dydx_withdrawal/': 1,
'dydx_address/': 1,
'gala_withdrawal/': 1,
'gala_address/': 1,
'shib_withdrawal/': 1,
'shib_address/': 1,
'amp_withdrawal/': 1,
'amp_address/': 1,
'sgb_withdrawal/': 1,
'sgb_address/': 1,
'avax_withdrawal/': 1,
'avax_address/': 1,
'wbtc_withdrawal/': 1,
'wbtc_address/': 1,
'ctsi_withdrawal/': 1,
'ctsi_address/': 1,
'cvx_withdrawal/': 1,
'cvx_address/': 1,
'imx_withdrawal/': 1,
'imx_address/': 1,
'nexo_withdrawal/': 1,
'nexo_address/': 1,
'ust_withdrawal/': 1,
'ust_address/': 1,
'ant_withdrawal/': 1,
'ant_address/': 1,
'gods_withdrawal/': 1,
'gods_address/': 1,
'rad_withdrawal/': 1,
'rad_address/': 1,
'band_withdrawal/': 1,
'band_address/': 1,
'inj_withdrawal/': 1,
'inj_address/': 1,
'rly_withdrawal/': 1,
'rly_address/': 1,
'rndr_withdrawal/': 1,
'rndr_address/': 1,
'vega_withdrawal/': 1,
'vega_address/': 1,
'1inch_withdrawal/': 1,
'1inch_address/': 1,
'ens_withdrawal/': 1,
'ens_address/': 1,
'mana_withdrawal/': 1,
'mana_address/': 1,
'lrc_withdrawal/': 1,
'lrc_address/': 1,
'ape_withdrawal/': 1,
'ape_address/': 1,
'mpl_withdrawal/': 1,
'mpl_address/': 1,
'euroc_withdrawal/': 1,
'euroc_address/': 1,
'sol_withdrawal/': 1,
'sol_address/': 1,
'dot_withdrawal/': 1,
'dot_address/': 1,
'near_withdrawal/': 1,
'near_address/': 1,
'doge_withdrawal/': 1,
'doge_address/': 1,
'flr_withdrawal/': 1,
'flr_address/': 1,
},
},
},
'fees': {
'trading': {
'tierBased': true,
'percentage': true,
'taker': this.parseNumber ('0.005'),
'maker': this.parseNumber ('0.005'),
'tiers': {
'taker': [
[ this.parseNumber ('0'), this.parseNumber ('0.005') ],
[ this.parseNumber ('20000'), this.parseNumber ('0.0025') ],
[ this.parseNumber ('100000'), this.parseNumber ('0.0024') ],
[ this.parseNumber ('200000'), this.parseNumber ('0.0022') ],
[ this.parseNumber ('400000'), this.parseNumber ('0.0020') ],
[ this.parseNumber ('600000'), this.parseNumber ('0.0015') ],
[ this.parseNumber ('1000000'), this.parseNumber ('0.0014') ],
[ this.parseNumber ('2000000'), this.parseNumber ('0.0013') ],
[ this.parseNumber ('4000000'), this.parseNumber ('0.0012') ],
[ this.parseNumber ('20000000'), this.parseNumber ('0.0011') ],
[ this.parseNumber ('50000000'), this.parseNumber ('0.0010') ],
[ this.parseNumber ('100000000'), this.parseNumber ('0.0007') ],
[ this.parseNumber ('500000000'), this.parseNumber ('0.0005') ],
[ this.parseNumber ('2000000000'), this.parseNumber ('0.0003') ],
[ this.parseNumber ('6000000000'), this.parseNumber ('0.0001') ],
[ this.parseNumber ('20000000000'), this.parseNumber ('0.00005') ],
[ this.parseNumber ('20000000001'), this.parseNumber ('0') ],
],
'maker': [
[ this.parseNumber ('0'), this.parseNumber ('0.005') ],
[ this.parseNumber ('20000'), this.parseNumber ('0.0025') ],
[ this.parseNumber ('100000'), this.parseNumber ('0.0024') ],
[ this.parseNumber ('200000'), this.parseNumber ('0.0022') ],
[ this.parseNumber ('400000'), this.parseNumber ('0.0020') ],
[ this.parseNumber ('600000'), this.parseNumber ('0.0015') ],
[ this.parseNumber ('1000000'), this.parseNumber ('0.0014') ],
[ this.parseNumber ('2000000'), this.parseNumber ('0.0013') ],
[ this.parseNumber ('4000000'), this.parseNumber ('0.0012') ],
[ this.parseNumber ('20000000'), this.parseNumber ('0.0011') ],
[ this.parseNumber ('50000000'), this.parseNumber ('0.0010') ],
[ this.parseNumber ('100000000'), this.parseNumber ('0.0007') ],
[ this.parseNumber ('500000000'), this.parseNumber ('0.0005') ],
[ this.parseNumber ('2000000000'), this.parseNumber ('0.0003') ],
[ this.parseNumber ('6000000000'), this.parseNumber ('0.0001') ],
[ this.parseNumber ('20000000000'), this.parseNumber ('0.00005') ],
[ this.parseNumber ('20000000001'), this.parseNumber ('0') ],
],
},
},
'funding': {
'tierBased': false,
'percentage': false,
'withdraw': {},
'deposit': {
'BTC': 0,
'BCH': 0,
'LTC': 0,
'ETH': 0,
'XRP': 0,
'XLM': 0,
'PAX': 0,
'USD': 7.5,
'EUR': 0,
},
},
},
'precisionMode': TICK_SIZE,
'commonCurrencies': {
'UST': 'USTC',
},
'exceptions': {
'exact': {
'No permission found': PermissionDenied,
'API key not found': AuthenticationError,
'IP address not allowed': PermissionDenied,
'Invalid nonce': InvalidNonce,
'Invalid signature': AuthenticationError,
'Authentication failed': AuthenticationError,
'Missing key, signature and nonce parameters': AuthenticationError,
'Wrong API key format': AuthenticationError,
'Your account is frozen': PermissionDenied,
'Please update your profile with your FATCA information, before using API.': PermissionDenied,
'Order not found.': OrderNotFound,
'Price is more than 20% below market price.': InvalidOrder,
"Bitstamp.net is under scheduled maintenance. We'll be back soon.": OnMaintenance, // { "error": "Bitstamp.net is under scheduled maintenance. We'll be back soon." }
'Order could not be placed.': ExchangeNotAvailable, // Order could not be placed (perhaps due to internal error or trade halt). Please retry placing order.
'Invalid offset.': BadRequest,
},
'broad': {
'Minimum order size is': InvalidOrder, // Minimum order size is 5.0 EUR.
'Check your account balance for details.': InsufficientFunds, // You have only 0.00100000 BTC available. Check your account balance for details.
'Ensure this value has at least': InvalidAddress, // Ensure this value has at least 25 characters (it has 4).
'Ensure that there are no more than': InvalidOrder, // {"status": "error", "reason": {"amount": ["Ensure that there are no more than 0 decimal places."], "__all__": [""]}}
},
},
});
}
async fetchMarkets (params = {}) {
/**
* @method
* @name bitstamp#fetchMarkets
* @description retrieves data on all markets for bitstamp
* @param {object} params extra parameters specific to the exchange api endpoint
* @returns {[object]} an array of objects representing market data
*/
const response = await this.fetchMarketsFromCache (params);
//
// [
// {
// "trading": "Enabled",
// "base_decimals": 8,
// "url_symbol": "btcusd",
// "name": "BTC/USD",
// "instant_and_market_orders": "Enabled",
// "minimum_order": "20.0 USD",
// "counter_decimals": 2,
// "description": "Bitcoin / U.S. dollar"
// }
// ]
//
const result = [];
for (let i = 0; i < response.length; i++) {
const market = response[i];
const name = this.safeString (market, 'name');
let [ base, quote ] = name.split ('/');
const baseId = base.toLowerCase ();
const quoteId = quote.toLowerCase ();
base = this.safeCurrencyCode (base);
quote = this.safeCurrencyCode (quote);
const minimumOrder = this.safeString (market, 'minimum_order');
const parts = minimumOrder.split (' ');
const status = this.safeString (market, 'trading');
result.push ({
'id': this.safeString (market, 'url_symbol'),
'marketId': baseId + '_' + quoteId,
'symbol': base + '/' + quote,
'base': base,
'quote': quote,
'settle': undefined,
'baseId': baseId,
'quoteId': quoteId,
'settleId': undefined,
'type': 'spot',
'spot': true,
'margin': false,
'future': false,
'swap': false,
'option': false,
'active': (status === 'Enabled'),
'contract': false,
'linear': undefined,
'inverse': undefined,
'contractSize': undefined,
'expiry': undefined,
'expiryDatetime': undefined,
'strike': undefined,
'optionType': undefined,
'precision': {
'amount': this.parseNumber (this.parsePrecision (this.safeString (market, 'base_decimals'))),
'price': this.parseNumber (this.parsePrecision (this.safeString (market, 'counter_decimals'))),
},
'limits': {
'leverage': {
'min': undefined,
'max': undefined,
},
'amount': {
'min': undefined,
'max': undefined,
},
'price': {
'min': undefined,
'max': undefined,
},
'cost': {
'min': this.safeNumber (parts, 0),
'max': undefined,
},
},
'info': market,
});
}
return result;
}
constructCurrencyObject (id, code, name, precision, minCost, originalPayload) {
let currencyType = 'crypto';
const description = this.describe ();
if (this.isFiat (code)) {
currencyType = 'fiat';
}
const tickSize = this.parseNumber (this.parsePrecision (this.numberToString (precision)));
return {
'id': id,
'code': code,
'info': originalPayload, // the original payload
'type': currencyType,
'name': name,
'active': true,
'deposit': undefined,
'withdraw': undefined,
'fee': this.safeNumber (description['fees']['funding']['withdraw'], code),
'precision': tickSize,
'limits': {
'amount': {
'min': tickSize,
'max': undefined,
},
'price': {
'min': tickSize,
'max': undefined,
},
'cost': {
'min': minCost,
'max': undefined,
},
'withdraw': {
'min': undefined,
'max': undefined,
},
},
};
}
async fetchMarketsFromCache (params = {}) {
// this method is now redundant
// currencies are now fetched before markets
const options = this.safeValue (this.options, 'fetchMarkets', {});
const timestamp = this.safeInteger (options, 'timestamp');
const expires = this.safeInteger (options, 'expires', 1000);
const now = this.milliseconds ();
if ((timestamp === undefined) || ((now - timestamp) > expires)) {
const response = await this.publicGetTradingPairsInfo (params);
this.options['fetchMarkets'] = this.extend (options, {
'response': response,
'timestamp': now,
});
}
return this.safeValue (this.options['fetchMarkets'], 'response');
}
async fetchCurrencies (params = {}) {
/**
* @method
* @name bitstamp#fetchCurrencies
* @description fetches all available currencies on an exchange
* @param {object} params extra parameters specific to the bitstamp api endpoint
* @returns {object} an associative dictionary of currencies
*/
const response = await this.fetchMarketsFromCache (params);
//
// [
// {
// "trading": "Enabled",
// "base_decimals": 8,
// "url_symbol": "btcusd",
// "name": "BTC/USD",
// "instant_and_market_orders": "Enabled",
// "minimum_order": "20.0 USD",
// "counter_decimals": 2,
// "description": "Bitcoin / U.S. dollar"
// },
// ]
//
const result = {};
for (let i = 0; i < response.length; i++) {
const market = response[i];
const name = this.safeString (market, 'name');
let [ base, quote ] = name.split ('/');
const baseId = base.toLowerCase ();
const quoteId = quote.toLowerCase ();
base = this.safeCurrencyCode (base);
quote = this.safeCurrencyCode (quote);
const description = this.safeString (market, 'description');
const [ baseDescription, quoteDescription ] = description.split (' / ');
const minimumOrder = this.safeString (market, 'minimum_order');
const parts = minimumOrder.split (' ');
const cost = parts[0];
if (!(base in result)) {
const baseDecimals = this.safeInteger (market, 'base_decimals');
result[base] = this.constructCurrencyObject (baseId, base, baseDescription, baseDecimals, undefined, market);
}
if (!(quote in result)) {
const counterDecimals = this.safeInteger (market, 'counter_decimals');
result[quote] = this.constructCurrencyObject (quoteId, quote, quoteDescription, counterDecimals, this.parseNumber (cost), market);
}
}
return result;
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
/**
* @method
* @name bitstamp#fetchOrderBook
* @description fetches information on open orders with bid (buy) and ask (sell) prices, volumes and other data
* @param {string} symbol unified symbol of the market to fetch the order book for
* @param {int|undefined} limit the maximum amount of order book entries to return
* @param {object} params extra parameters specific to the bitstamp api endpoint
* @returns {object} A dictionary of [order book structures]{@link https://docs.ccxt.com/en/latest/manual.html#order-book-structure} indexed by market symbols
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
};
const response = await this.publicGetOrderBookPair (this.extend (request, params));
//
// {
// "timestamp": "1583652948",
// "microtimestamp": "1583652948955826",
// "bids": [
// [ "8750.00", "1.33685271" ],
// [ "8749.39", "0.07700000" ],
// [ "8746.98", "0.07400000" ],
// ]
// "asks": [
// [ "8754.10", "1.51995636" ],
// [ "8754.71", "1.40000000" ],
// [ "8754.72", "2.50000000" ],
// ]
// }
//
const microtimestamp = this.safeInteger (response, 'microtimestamp');
const timestamp = parseInt (microtimestamp / 1000);
const orderbook = this.parseOrderBook (response, market['symbol'], timestamp);
orderbook['nonce'] = microtimestamp;
return orderbook;
}
parseTicker (ticker, market = undefined) {
//
// {
// "high": "37534.15",
// "last": "36487.44",
// "timestamp":
// "1643370585",
// "bid": "36475.15",
// "vwap": "36595.67",
// "volume": "2848.49168527",
// "low": "35511.32",
// "ask": "36487.44",
// "open": "37179.62"
// }
//
const symbol = this.safeSymbol (undefined, market);
const timestamp = this.safeTimestamp (ticker, 'timestamp');
const vwap = this.safeString (ticker, 'vwap');
const baseVolume = this.safeString (ticker, 'volume');
const quoteVolume = Precise.stringMul (baseVolume, vwap);
const last = this.safeString (ticker, 'last');
return this.safeTicker ({
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeString (ticker, 'high'),
'low': this.safeString (ticker, 'low'),
'bid': this.safeString (ticker, 'bid'),
'bidVolume': undefined,
'ask': this.safeString (ticker, 'ask'),
'askVolume': undefined,
'vwap': vwap,
'open': this.safeString (ticker, 'open'),
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': undefined,
'average': undefined,
'baseVolume': baseVolume,
'quoteVolume': quoteVolume,
'info': ticker,
}, market);
}
async fetchTicker (symbol, params = {}) {
/**
* @method
* @name bitstamp#fetchTicker
* @description fetches a price ticker, a statistical calculation with the information calculated over the past 24 hours for a specific market
* @param {string} symbol unified symbol of the market to fetch the ticker for
* @param {object} params extra parameters specific to the bitstamp api endpoint
* @returns {object} a [ticker structure]{@link https://docs.ccxt.com/en/latest/manual.html#ticker-structure}
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
};
const ticker = await this.publicGetTickerPair (this.extend (request, params));
//
// {
// "high": "37534.15",
// "last": "36487.44",
// "timestamp":
// "1643370585",
// "bid": "36475.15",
// "vwap": "36595.67",
// "volume": "2848.49168527",
// "low": "35511.32",
// "ask": "36487.44",
// "open": "37179.62"
// }
//
return this.parseTicker (ticker, market);
}
getCurrencyIdFromTransaction (transaction) {
//
// {
// "fee": "0.00000000",
// "btc_usd": "0.00",
// "datetime": XXX,
// "usd": 0.0,
// "btc": 0.0,
// "eth": "0.05000000",
// "type": "0",
// "id": XXX,
// "eur": 0.0
// }
//
const currencyId = this.safeStringLower (transaction, 'currency');
if (currencyId !== undefined) {
return currencyId;
}
transaction = this.omit (transaction, [
'fee',
'price',
'datetime',
'type',
'status',
'id',
]);
const ids = Object.keys (transaction);
for (let i = 0; i < ids.length; i++) {
const id = ids[i];
if (id.indexOf ('_') < 0) {
const value = this.safeNumber (transaction, id);
if ((value !== undefined) && (value !== 0)) {
return id;
}
}
}
return undefined;
}
getMarketFromTrade (trade) {
trade = this.omit (trade, [
'fee',
'price',
'datetime',
'tid',
'type',
'order_id',
'side',
]);
const currencyIds = Object.keys (trade);
const numCurrencyIds = currencyIds.length;
if (numCurrencyIds > 2) {
throw new ExchangeError (this.id + ' getMarketFromTrade() too many keys: ' + this.json (currencyIds) + ' in the trade: ' + this.json (trade));
}
if (numCurrencyIds === 2) {
let marketId = currencyIds[0] + currencyIds[1];
if (marketId in this.markets_by_id) {
return this.safeMarket (marketId);
}
marketId = currencyIds[1] + currencyIds[0];
if (marketId in this.markets_by_id) {
return this.safeMarket (marketId);
}
}
return undefined;
}
parseTrade (trade, market = undefined) {
//
// fetchTrades (public)
//
// {
// "date": "1637845199",
// "tid": "209895701",
// "amount": "0.00500000",
// "type": "0", // Transaction type: 0 - buy; 1 - sell
// "price": "4451.25"
// }
//
// fetchMyTrades, trades returned within fetchOrder (private)
//
// {
// "fee": "0.11128",
// "eth_usdt": 4451.25,
// "datetime": "2021-11-25 12:59:59.322000",
// "usdt": "-22.26",
// "order_id": 1429545880227846,
// "usd": 0,
// "btc": 0,
// "eth": "0.00500000",
// "type": "2", // Transaction type: 0 - deposit; 1 - withdrawal; 2 - market trade; 14 - sub account transfer; 25 - credited with staked assets; 26 - sent assets to staking; 27 - staking reward; 32 - referral reward; 35 - inter account transfer.
// "id": 209895701,
// "eur": 0
// }
//
// from fetchOrder (private)
//
// {
// "fee": "0.11128",
// "price": "4451.25000000",
// "datetime": "2021-11-25 12:59:59.322000",
// "usdt": "22.25625000",
// "tid": 209895701,
// "eth": "0.00500000",
// "type": 2 // Transaction type: 0 - deposit; 1 - withdrawal; 2 - market trade
// }
//
const id = this.safeString2 (trade, 'id', 'tid');
let symbol = undefined;
let side = undefined;
let priceString = this.safeString (trade, 'price');
let amountString = this.safeString (trade, 'amount');
const orderId = this.safeString (trade, 'order_id');
const type = undefined;
let costString = this.safeString (trade, 'cost');
let rawMarketId = undefined;
if (market === undefined) {
const keys = Object.keys (trade);
for (let i = 0; i < keys.length; i++) {
const currentKey = keys[i];
if (currentKey !== 'order_id' && currentKey.indexOf ('_') >= 0) {
rawMarketId = currentKey;
market = this.safeMarket (rawMarketId, market, '_');
}
}
}
// if the market is still not defined
// try to deduce it from used keys
if (market === undefined) {
market = this.getMarketFromTrade (trade);
}
const feeCostString = this.safeString (trade, 'fee');
const feeCurrency = market['quote'];
priceString = this.safeString (trade, rawMarketId, priceString);
amountString = this.safeString (trade, market['baseId'], amountString);
costString = this.safeString (trade, market['quoteId'], costString);
symbol = market['symbol'];
const datetimeString = this.safeString2 (trade, 'date', 'datetime');
let timestamp = undefined;
if (datetimeString !== undefined) {
if (datetimeString.indexOf (' ') >= 0) {
// iso8601
timestamp = this.parse8601 (datetimeString);
} else {
// string unix epoch in seconds
timestamp = parseInt (datetimeString);
timestamp = timestamp * 1000;
}
}
// if it is a private trade
if ('id' in trade) {
if (amountString !== undefined) {
const isAmountNeg = Precise.stringLt (amountString, '0');
if (isAmountNeg) {
side = 'sell';
amountString = Precise.stringNeg (amountString);
} else {
side = 'buy';
}
}
} else {
side = this.safeString (trade, 'type');
if (side === '1') {
side = 'sell';
} else if (side === '0') {
side = 'buy';
} else {
side = undefined;
}
}
if (costString !== undefined) {
costString = Precise.stringAbs (costString);
}
let fee = undefined;
if (feeCostString !== undefined) {
fee = {
'cost': feeCostString,
'currency': feeCurrency,
};
}
return this.safeTrade ({
'id': id,
'info': trade,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': symbol,
'order': orderId,
'type': type,
'side': side,
'takerOrMaker': undefined,
'price': priceString,
'amount': amountString,
'cost': costString,
'fee': fee,
}, market);
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name bitstamp#fetchTrades
* @description get the list of most recent trades for a particular symbol
* @param {string} symbol unified symbol of the market to fetch trades for
* @param {int|undefined} since timestamp in ms of the earliest trade to fetch
* @param {int|undefined} limit the maximum amount of trades to fetch
* @param {object} params extra parameters specific to the bitstamp api endpoint
* @returns {[object]} a list of [trade structures]{@link https://docs.ccxt.com/en/latest/manual.html?#public-trades}
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
'time': 'hour',
};
const response = await this.publicGetTransactionsPair (this.extend (request, params));
//
// [
// {
// date: '1551814435',
// tid: '83581898',
// price: '0.03532850',
// type: '1',
// amount: '0.85945907'
// },
// {
// date: '1551814434',
// tid: '83581896',
// price: '0.03532851',
// type: '1',
// amount: '11.34130961'
// },
// ]
//
return this.parseTrades (response, market, since, limit);
}
parseOHLCV (ohlcv, market = undefined) {
//
// {
// "high": "9064.77",
// "timestamp": "1593961440",
// "volume": "18.49436608",
// "low": "9040.87",
// "close": "9064.77",
// "open": "9040.87"
// }
//
return [
this.safeTimestamp (ohlcv, 'timestamp'),
this.safeNumber (ohlcv, 'open'),
this.safeNumber (ohlcv, 'high'),
this.safeNumber (ohlcv, 'low'),
this.safeNumber (ohlcv, 'close'),
this.safeNumber (ohlcv, 'volume'),
];
}
async fetchOHLCV (symbol, timeframe = '1m', since = undefined, limit = undefined, params = {}) {
/**
* @method
* @name bitstamp#fetchOHLCV
* @description fetches historical candlestick data containing the open, high, low, and close price, and the volume of a market
* @param {string} symbol unified symbol of the market to fetch OHLCV data for
* @param {string} timeframe the length of time each candle represents
* @param {int|undefined} since timestamp in ms of the earliest candle to fetch
* @param {int|undefined} limit the maximum amount of candles to fetch
* @param {object} params extra parameters specific to the bitstamp api endpoint
* @returns {[[int]]} A list of candles ordered as timestamp, open, high, low, close, volume
*/
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'pair': market['id'],
'step': this.safeString (this.timeframes, timeframe, timeframe),
};
const duration = this.parseTimeframe (timeframe);
if (limit === undefined) {
if (since === undefined) {
request['limit'] = 1000; // we need to specify an allowed amount of `limit` if no `since` is set and there is no default limit by exchange
} else {
limit = 1000;
const start = parseInt (since / 1000);
request['start'] = start;
request['end'] = this.sum (start, limit * duration);