511 lines
18 KiB
JavaScript
511 lines
18 KiB
JavaScript
'use strict';
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// ---------------------------------------------------------------------------
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const Exchange = require ('./base/Exchange');
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const { ExchangeError, BadRequest } = require ('./base/errors');
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// ---------------------------------------------------------------------------
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module.exports = class zaif extends Exchange {
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describe () {
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return this.deepExtend (super.describe (), {
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'id': 'zaif',
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'name': 'Zaif',
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'countries': [ 'JP' ],
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'rateLimit': 2000,
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'version': '1',
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'has': {
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'CORS': false,
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'createMarketOrder': false,
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'fetchOpenOrders': true,
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'fetchClosedOrders': true,
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'withdraw': true,
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},
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'urls': {
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'logo': 'https://user-images.githubusercontent.com/1294454/27766927-39ca2ada-5eeb-11e7-972f-1b4199518ca6.jpg',
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'api': 'https://api.zaif.jp',
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'www': 'https://zaif.jp',
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'doc': [
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'https://techbureau-api-document.readthedocs.io/ja/latest/index.html',
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'https://corp.zaif.jp/api-docs',
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'https://corp.zaif.jp/api-docs/api_links',
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'https://www.npmjs.com/package/zaif.jp',
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'https://github.com/you21979/node-zaif',
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],
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'fees': 'https://zaif.jp/fee?lang=en',
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},
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'fees': {
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'trading': {
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'percentage': true,
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'taker': 0.1 / 100,
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'maker': 0,
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},
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},
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'api': {
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'public': {
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'get': [
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'depth/{pair}',
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'currencies/{pair}',
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'currencies/all',
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'currency_pairs/{pair}',
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'currency_pairs/all',
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'last_price/{pair}',
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'ticker/{pair}',
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'trades/{pair}',
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],
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},
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'private': {
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'post': [
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'active_orders',
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'cancel_order',
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'deposit_history',
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'get_id_info',
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'get_info',
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'get_info2',
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'get_personal_info',
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'trade',
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'trade_history',
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'withdraw',
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'withdraw_history',
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],
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},
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'ecapi': {
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'post': [
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'createInvoice',
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'getInvoice',
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'getInvoiceIdsByOrderNumber',
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'cancelInvoice',
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],
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},
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'tlapi': {
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'post': [
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'get_positions',
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'position_history',
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'active_positions',
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'create_position',
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'change_position',
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'cancel_position',
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],
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},
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'fapi': {
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'get': [
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'groups/{group_id}',
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'last_price/{group_id}/{pair}',
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'ticker/{group_id}/{pair}',
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'trades/{group_id}/{pair}',
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'depth/{group_id}/{pair}',
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],
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},
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},
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'options': {
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// zaif schedule defines several market-specific fees
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'fees': {
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'BTC/JPY': { 'maker': 0, 'taker': 0 },
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'BCH/JPY': { 'maker': 0, 'taker': 0.3 / 100 },
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'BCH/BTC': { 'maker': 0, 'taker': 0.3 / 100 },
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'PEPECASH/JPY': { 'maker': 0, 'taker': 0.01 / 100 },
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'PEPECASH/BT': { 'maker': 0, 'taker': 0.01 / 100 },
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},
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},
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'exceptions': {
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'exact': {
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'unsupported currency_pair': BadRequest, // {"error": "unsupported currency_pair"}
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},
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'broad': {
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},
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},
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});
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}
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async fetchMarkets (params = {}) {
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const markets = await this.publicGetCurrencyPairsAll (params);
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const result = [];
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for (let i = 0; i < markets.length; i++) {
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const market = markets[i];
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const id = this.safeString (market, 'currency_pair');
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const name = this.safeString (market, 'name');
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const [ baseId, quoteId ] = name.split ('/');
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const base = this.safeCurrencyCode (baseId);
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const quote = this.safeCurrencyCode (quoteId);
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const symbol = base + '/' + quote;
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const precision = {
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'amount': -Math.log10 (market['item_unit_step']),
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'price': market['aux_unit_point'],
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};
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const fees = this.safeValue (this.options['fees'], symbol, this.fees['trading']);
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const taker = fees['taker'];
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const maker = fees['maker'];
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result.push ({
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'id': id,
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'symbol': symbol,
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'base': base,
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'quote': quote,
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'baseId': baseId,
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'quoteId': quoteId,
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'active': true, // can trade or not
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'precision': precision,
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'taker': taker,
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'maker': maker,
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'limits': {
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'amount': {
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'min': this.safeFloat (market, 'item_unit_min'),
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'max': undefined,
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},
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'price': {
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'min': this.safeFloat (market, 'aux_unit_min'),
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'max': undefined,
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},
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'cost': {
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'min': undefined,
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'max': undefined,
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},
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},
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'info': market,
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});
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}
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return result;
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}
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async fetchBalance (params = {}) {
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await this.loadMarkets ();
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const response = await this.privatePostGetInfo (params);
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const balances = this.safeValue (response, 'return', {});
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const result = { 'info': response };
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const funds = this.safeValue (balances, 'funds', {});
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const currencyIds = Object.keys (funds);
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for (let i = 0; i < currencyIds.length; i++) {
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const currencyId = currencyIds[i];
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const code = this.safeCurrencyCode (currencyId);
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const balance = this.safeValue (funds, currencyId);
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const account = {
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'free': balance,
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'used': 0.0,
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'total': balance,
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};
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if ('deposit' in balances) {
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if (currencyId in balances['deposit']) {
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account['total'] = this.safeFloat (balances['deposit'], currencyId);
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account['used'] = account['total'] - account['free'];
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}
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}
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result[code] = account;
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}
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return this.parseBalance (result);
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}
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async fetchOrderBook (symbol, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const request = {
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'pair': this.marketId (symbol),
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};
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const response = await this.publicGetDepthPair (this.extend (request, params));
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return this.parseOrderBook (response);
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}
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async fetchTicker (symbol, params = {}) {
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await this.loadMarkets ();
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const request = {
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'pair': this.marketId (symbol),
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};
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const ticker = await this.publicGetTickerPair (this.extend (request, params));
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const timestamp = this.milliseconds ();
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const vwap = this.safeFloat (ticker, 'vwap');
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const baseVolume = this.safeFloat (ticker, 'volume');
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let quoteVolume = undefined;
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if (baseVolume !== undefined && vwap !== undefined) {
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quoteVolume = baseVolume * vwap;
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}
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const last = this.safeFloat (ticker, 'last');
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return {
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'symbol': symbol,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'high': this.safeFloat (ticker, 'high'),
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'low': this.safeFloat (ticker, 'low'),
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'bid': this.safeFloat (ticker, 'bid'),
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'bidVolume': undefined,
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'ask': this.safeFloat (ticker, 'ask'),
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'askVolume': undefined,
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'vwap': vwap,
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'open': undefined,
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'close': last,
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'last': last,
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'previousClose': undefined,
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'change': undefined,
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'percentage': undefined,
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'average': undefined,
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'baseVolume': baseVolume,
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'quoteVolume': quoteVolume,
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'info': ticker,
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};
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}
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parseTrade (trade, market = undefined) {
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let side = this.safeString (trade, 'trade_type');
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side = (side === 'bid') ? 'buy' : 'sell';
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const timestamp = this.safeTimestamp (trade, 'date');
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const id = this.safeString2 (trade, 'id', 'tid');
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const price = this.safeFloat (trade, 'price');
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const amount = this.safeFloat (trade, 'amount');
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let cost = undefined;
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if (price !== undefined) {
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if (amount !== undefined) {
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cost = amount * price;
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}
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}
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if (market === undefined) {
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const marketId = this.safeString (trade, 'currency_pair');
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if (marketId in this.markets_by_id) {
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market = this.markets_by_id[marketId];
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}
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}
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let symbol = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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return {
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'id': id,
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'info': trade,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'symbol': symbol,
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'type': undefined,
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'side': side,
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'order': undefined,
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'takerOrMaker': undefined,
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'price': price,
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'amount': amount,
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'cost': cost,
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'fee': undefined,
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};
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}
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async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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const market = this.market (symbol);
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const request = {
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'pair': market['id'],
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};
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let response = await this.publicGetTradesPair (this.extend (request, params));
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const numTrades = response.length;
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if (numTrades === 1) {
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const firstTrade = response[0];
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if (!Object.keys (firstTrade).length) {
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response = [];
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}
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}
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return this.parseTrades (response, market, since, limit);
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}
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async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
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await this.loadMarkets ();
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if (type !== 'limit') {
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throw new ExchangeError (this.id + ' allows limit orders only');
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}
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const request = {
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'currency_pair': this.marketId (symbol),
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'action': (side === 'buy') ? 'bid' : 'ask',
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'amount': amount,
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'price': price,
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};
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const response = await this.privatePostTrade (this.extend (request, params));
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return {
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'info': response,
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'id': response['return']['order_id'].toString (),
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};
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}
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async cancelOrder (id, symbol = undefined, params = {}) {
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const request = {
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'order_id': id,
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};
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return await this.privatePostCancelOrder (this.extend (request, params));
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}
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parseOrder (order, market = undefined) {
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//
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// {
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// "currency_pair": "btc_jpy",
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// "action": "ask",
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// "amount": 0.03,
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// "price": 56000,
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// "timestamp": 1402021125,
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// "comment" : "demo"
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// }
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//
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let side = this.safeString (order, 'action');
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side = (side === 'bid') ? 'buy' : 'sell';
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const timestamp = this.safeTimestamp (order, 'timestamp');
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if (!market) {
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const marketId = this.safeString (order, 'currency_pair');
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if (marketId in this.markets_by_id) {
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market = this.markets_by_id[marketId];
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}
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}
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const price = this.safeFloat (order, 'price');
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const amount = this.safeFloat (order, 'amount');
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let cost = undefined;
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if (price !== undefined) {
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if (amount !== undefined) {
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cost = price * amount;
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}
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}
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const id = this.safeString (order, 'id');
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let symbol = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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return {
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'id': id,
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'clientOrderId': undefined,
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'timestamp': timestamp,
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'datetime': this.iso8601 (timestamp),
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'lastTradeTimestamp': undefined,
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'status': 'open',
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'symbol': symbol,
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'type': 'limit',
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'side': side,
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'price': price,
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'cost': cost,
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'amount': amount,
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'filled': undefined,
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'remaining': undefined,
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'trades': undefined,
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'fee': undefined,
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'info': undefined,
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'average': undefined,
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};
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}
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parseOrders (orders, market = undefined, since = undefined, limit = undefined, params = {}) {
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const result = [];
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const ids = Object.keys (orders);
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let symbol = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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}
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for (let i = 0; i < ids.length; i++) {
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const id = ids[i];
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const order = this.extend ({ 'id': id }, orders[id]);
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result.push (this.extend (this.parseOrder (order, market), params));
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}
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return this.filterBySymbolSinceLimit (result, symbol, since, limit);
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}
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async fetchOpenOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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let market = undefined;
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const request = {
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// 'is_token': false,
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// 'is_token_both': false,
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};
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if (symbol !== undefined) {
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market = this.market (symbol);
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request['currency_pair'] = market['id'];
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}
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const response = await this.privatePostActiveOrders (this.extend (request, params));
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return this.parseOrders (response['return'], market, since, limit);
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}
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async fetchClosedOrders (symbol = undefined, since = undefined, limit = undefined, params = {}) {
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await this.loadMarkets ();
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let market = undefined;
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const request = {
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// 'from': 0,
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// 'count': 1000,
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// 'from_id': 0,
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// 'end_id': 1000,
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// 'order': 'DESC',
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// 'since': 1503821051,
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// 'end': 1503821051,
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// 'is_token': false,
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};
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if (symbol !== undefined) {
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market = this.market (symbol);
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request['currency_pair'] = market['id'];
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}
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const response = await this.privatePostTradeHistory (this.extend (request, params));
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return this.parseOrders (response['return'], market, since, limit);
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}
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async withdraw (code, amount, address, tag = undefined, params = {}) {
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this.checkAddress (address);
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await this.loadMarkets ();
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const currency = this.currency (code);
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if (code === 'JPY') {
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throw new ExchangeError (this.id + ' withdraw() does not allow ' + code + ' withdrawals');
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}
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const request = {
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'currency': currency['id'],
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'amount': amount,
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'address': address,
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// 'message': 'Hi!', // XEM and others
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// 'opt_fee': 0.003, // BTC and MONA only
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};
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if (tag !== undefined) {
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request['message'] = tag;
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}
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const result = await this.privatePostWithdraw (this.extend (request, params));
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return {
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'info': result,
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'id': result['return']['txid'],
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'fee': result['return']['fee'],
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};
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}
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nonce () {
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const nonce = parseFloat (this.milliseconds () / 1000);
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return nonce.toFixed (8);
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}
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sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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let url = this.urls['api'] + '/';
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if (api === 'public') {
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url += 'api/' + this.version + '/' + this.implodeParams (path, params);
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} else if (api === 'fapi') {
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url += 'fapi/' + this.version + '/' + this.implodeParams (path, params);
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} else {
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this.checkRequiredCredentials ();
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if (api === 'ecapi') {
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url += 'ecapi';
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} else if (api === 'tlapi') {
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url += 'tlapi';
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} else {
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url += 'tapi';
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}
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const nonce = this.nonce ();
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body = this.urlencode (this.extend ({
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'method': path,
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'nonce': nonce,
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}, params));
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headers = {
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'Content-Type': 'application/x-www-form-urlencoded',
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'Key': this.apiKey,
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'Sign': this.hmac (this.encode (body), this.encode (this.secret), 'sha512'),
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};
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}
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return { 'url': url, 'method': method, 'body': body, 'headers': headers };
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}
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handleErrors (httpCode, reason, url, method, headers, body, response, requestHeaders, requestBody) {
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if (response === undefined) {
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return;
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}
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//
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// {"error": "unsupported currency_pair"}
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//
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const feedback = this.id + ' ' + body;
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const error = this.safeString (response, 'error');
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if (error !== undefined) {
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this.throwExactlyMatchedException (this.exceptions['exact'], error, feedback);
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this.throwBroadlyMatchedException (this.exceptions['broad'], error, feedback);
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throw new ExchangeError (feedback); // unknown message
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}
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const success = this.safeValue (response, 'success', true);
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if (!success) {
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throw new ExchangeError (feedback);
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}
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}
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};
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