333 lines
13 KiB
JavaScript
333 lines
13 KiB
JavaScript
'use strict';
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// ---------------------------------------------------------------------------
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const Exchange = require ('./base/Exchange');
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const { ExchangeError } = require ('./base/errors');
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// ---------------------------------------------------------------------------
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module.exports = class coinmarketcap extends Exchange {
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describe () {
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return this.deepExtend (super.describe (), {
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'id': 'coinmarketcap',
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'name': 'CoinMarketCap',
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'rateLimit': 10000,
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'version': 'v1',
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'countries': [ 'US' ],
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'has': {
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'CORS': true,
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'privateAPI': false,
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'createOrder': false,
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'createMarketOrder': false,
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'createLimitOrder': false,
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'cancelOrder': false,
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'editOrder': false,
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'fetchBalance': false,
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'fetchOrderBook': false,
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'fetchL2OrderBook': false,
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'fetchOHLCV': false,
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'fetchTrades': false,
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'fetchTickers': true,
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'fetchCurrencies': true,
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},
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'urls': {
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'logo': 'https://user-images.githubusercontent.com/1294454/28244244-9be6312a-69ed-11e7-99c1-7c1797275265.jpg',
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'api': {
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'public': 'https://api.coinmarketcap.com',
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'files': 'https://files.coinmarketcap.com',
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'charts': 'https://graph.coinmarketcap.com',
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},
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'www': 'https://coinmarketcap.com',
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'doc': 'https://coinmarketcap.com/api',
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},
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'requiredCredentials': {
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'apiKey': false,
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'secret': false,
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},
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'api': {
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'files': {
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'get': [
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'generated/stats/global.json',
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],
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},
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'graphs': {
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'get': [
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'currencies/{name}/',
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],
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},
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'public': {
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'get': [
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'ticker/',
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'ticker/{id}/',
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'global/',
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],
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},
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},
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'currencyCodes': [
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'AUD',
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'BRL',
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'CAD',
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'CHF',
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'CNY',
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'EUR',
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'GBP',
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'HKD',
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'IDR',
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'INR',
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'JPY',
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'KRW',
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'MXN',
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'RUB',
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'USD',
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'BTC',
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'ETH',
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'LTC',
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],
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});
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}
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async fetchOrderBook (symbol, limit = undefined, params = {}) {
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throw new ExchangeError ('Fetching order books is not supported by the API of ' + this.id);
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}
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currencyCode (base, name) {
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const currencies = {
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'ACChain': 'ACChain',
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'AdCoin': 'AdCoin',
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'BatCoin': 'BatCoin',
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'Bitgem': 'Bitgem',
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'BlazeCoin': 'BlazeCoin',
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'BlockCAT': 'BlockCAT',
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'Blocktrade Token': 'Blocktrade Token',
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'Catcoin': 'Catcoin',
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'CanYaCoin': 'CanYaCoin', // conflict with CAN (Content and AD Network)
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'Comet': 'Comet', // conflict with CMT (CyberMiles)
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'CPChain': 'CPChain',
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'CrowdCoin': 'CrowdCoin', // conflict with CRC CryCash
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'Cryptaur': 'Cryptaur', // conflict with CPT = Contents Protocol https://github.com/ccxt/ccxt/issues/4920 and https://github.com/ccxt/ccxt/issues/6081
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'Cubits': 'Cubits', // conflict with QBT (Qbao)
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'DAO.Casino': 'DAO.Casino', // conflict with BET (BetaCoin)
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'E-Dinar Coin': 'E-Dinar Coin', // conflict with EDR Endor Protocol and EDRCoin
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'EDRcoin': 'EDRcoin', // conflict with EDR Endor Protocol and E-Dinar Coin
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'ENTCash': 'ENTCash', // conflict with ENT (Eternity)
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'FairCoin': 'FairCoin', // conflict with FAIR (FairGame) https://github.com/ccxt/ccxt/pull/5865
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'Fabric Token': 'Fabric Token',
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// 'GET Protocol': 'GET Protocol',
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'Global Tour Coin': 'Global Tour Coin', // conflict with GTC (Game.com)
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'GuccioneCoin': 'GuccioneCoin', // conflict with GCC (Global Cryptocurrency)
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'HarmonyCoin': 'HarmonyCoin', // conflict with HMC (Hi Mutual Society)
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'Harvest Masternode Coin': 'Harvest Masternode Coin', // conflict with HC (HyperCash)
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'HOT Token': 'HOT Token',
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'Hydro Protocol': 'Hydro Protocol', // conflict with HOT (Holo)
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'Huncoin': 'Huncoin', // conflict with HNC (Helleniccoin)
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'iCoin': 'iCoin',
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'Infinity Economics': 'Infinity Economics', // conflict with XIN (Mixin)
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'KingN Coin': 'KingN Coin', // conflict with KNC (Kyber Network)
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'LiteBitcoin': 'LiteBitcoin', // conflict with LBTC (LightningBitcoin)
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'Maggie': 'Maggie',
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'Monarch': 'Monarch', // conflict with MyToken (MT)
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'MTC Mesh Network': 'MTC Mesh Network', // conflict with MTC Docademic doc.com Token https://github.com/ccxt/ccxt/issues/6081 https://github.com/ccxt/ccxt/issues/3025
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'IOTA': 'IOTA', // a special case, most exchanges list it as IOTA, therefore we change just the Coinmarketcap instead of changing them all
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'NetCoin': 'NetCoin',
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'PCHAIN': 'PCHAIN', // conflict with PAI (Project Pai)
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'Plair': 'Plair', // conflict with PLA (PLANET)
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'PlayChip': 'PlayChip', // conflict with PLA (PLANET)
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'Polcoin': 'Polcoin',
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'PutinCoin': 'PutinCoin', // conflict with PUT (Profile Utility Token)
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'Rcoin': 'Rcoin', // conflict with RCN (Ripio Credit Network)
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// https://github.com/ccxt/ccxt/issues/6081
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// https://github.com/ccxt/ccxt/issues/3365
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// https://github.com/ccxt/ccxt/issues/2873
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'Themis': 'Themis', // conflict with GET (Guaranteed Entrance Token, GET Protocol)
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'Menlo One': 'Menlo One', // conflict with Harmony (ONE)
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'BigONE Token': 'BigONE Token', // conflict with Harmony (ONE)
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};
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return this.safeValue (currencies, name, base);
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}
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async fetchMarkets (params = {}) {
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const request = {
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'limit': 0,
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};
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const response = await this.publicGetTicker (this.extend (request, params));
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const result = [];
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for (let i = 0; i < response.length; i++) {
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const market = response[i];
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const currencies = this.currencyCodes;
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for (let j = 0; j < currencies.length; j++) {
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const quote = currencies[j];
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const quoteId = quote.toLowerCase ();
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const baseId = market['id'];
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const base = this.currencyCode (market['symbol'], market['name']);
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const symbol = base + '/' + quote;
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const id = baseId + '/' + quoteId;
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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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'info': market,
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'active': undefined,
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'precision': this.precision,
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'limits': this.limits,
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});
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}
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}
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return result;
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}
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async fetchGlobal (currency = 'USD') {
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await this.loadMarkets ();
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const request = {};
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if (currency) {
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request['convert'] = currency;
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}
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return await this.publicGetGlobal (request);
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}
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parseTicker (ticker, market = undefined) {
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let timestamp = this.safeTimestamp (ticker, 'last_updated');
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if (timestamp === undefined) {
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timestamp = this.milliseconds ();
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}
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const change = this.safeFloat (ticker, 'percent_change_24h');
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let last = undefined;
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let symbol = undefined;
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let volume = undefined;
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if (market !== undefined) {
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symbol = market['symbol'];
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const priceKey = 'price_' + market['quoteId'];
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last = this.safeFloat (ticker, priceKey);
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const volumeKey = '24h_volume_' + market['quoteId'];
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volume = this.safeFloat (ticker, volumeKey);
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}
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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': undefined,
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'low': undefined,
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'bid': undefined,
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'bidVolume': undefined,
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'ask': undefined,
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'askVolume': undefined,
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'vwap': undefined,
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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': change,
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'average': undefined,
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'baseVolume': undefined,
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'quoteVolume': volume,
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'info': ticker,
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};
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}
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async fetchTickers (currency = 'USD', params = {}) {
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await this.loadMarkets ();
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const request = {
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'limit': 10000,
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};
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if (currency) {
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request['convert'] = currency;
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}
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const response = await this.publicGetTicker (this.extend (request, params));
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const result = {};
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for (let t = 0; t < response.length; t++) {
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const ticker = response[t];
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const currencyId = currency.toLowerCase ();
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const id = ticker['id'] + '/' + currencyId;
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let symbol = id;
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let market = undefined;
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if (id in this.markets_by_id) {
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market = this.markets_by_id[id];
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symbol = market['symbol'];
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}
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result[symbol] = this.parseTicker (ticker, market);
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}
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return result;
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}
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async fetchTicker (symbol, 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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'convert': market['quote'],
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'id': market['baseId'],
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};
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const response = await this.publicGetTickerId (this.extend (request, params));
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const ticker = response[0];
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return this.parseTicker (ticker, market);
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}
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async fetchCurrencies (params = {}) {
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const request = {
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'limit': 0,
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};
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const response = await this.publicGetTicker (this.extend (request, params));
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const result = {};
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for (let i = 0; i < response.length; i++) {
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const currency = response[i];
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const id = this.safeString (currency, 'symbol');
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const name = this.safeString (currency, 'name');
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// todo: will need to rethink the fees
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// to add support for multiple withdrawal/deposit methods and
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// differentiated fees for each particular method
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const precision = 8; // default precision, todo: fix "magic constants"
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const code = this.currencyCode (id, name);
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result[code] = {
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'id': id,
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'code': code,
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'info': currency,
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'name': name,
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'active': true,
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'fee': undefined, // todo: redesign
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'precision': precision,
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'limits': {
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'amount': {
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'min': Math.pow (10, -precision),
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'max': Math.pow (10, precision),
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},
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'price': {
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'min': Math.pow (10, -precision),
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'max': Math.pow (10, precision),
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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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'withdraw': {
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'min': undefined,
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'max': undefined,
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},
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},
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};
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}
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return result;
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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'][api] + '/' + this.version + '/' + this.implodeParams (path, params);
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const query = this.omit (params, this.extractParams (path));
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if (Object.keys (query).length) {
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url += '?' + this.urlencode (query);
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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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async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
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const response = await this.fetch2 (path, api, method, params, headers, body);
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if ('error' in response) {
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if (response['error']) {
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throw new ExchangeError (this.id + ' ' + this.json (response));
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}
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}
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return response;
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}
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};
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