consequunturatque
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A JavaScript / Python / PHP cryptocurrency trading library with support for 130+ exchanges
262 lines (248 loc) • 10.1 kB
JavaScript
'use strict';
// ---------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError } = require ('./base/errors');
const Precise = require ('./base/Precise');
// ---------------------------------------------------------------------------
module.exports = class paymium extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'paymium',
'name': 'Paymium',
'countries': [ 'FR', 'EU' ],
'rateLimit': 2000,
'version': 'v1',
'has': {
'CORS': true,
'fetchBalance': true,
'fetchTicker': true,
'fetchTrades': true,
'fetchOrderBook': true,
'createOrder': true,
'cancelOrder': true,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/51840849/87153930-f0f02200-c2c0-11ea-9c0a-40337375ae89.jpg',
'api': 'https://paymium.com/api',
'www': 'https://www.paymium.com',
'fees': 'https://www.paymium.com/page/help/fees',
'doc': [
'https://github.com/Paymium/api-documentation',
'https://www.paymium.com/page/developers',
],
'referral': 'https://www.paymium.com/page/sign-up?referral=eDAzPoRQFMvaAB8sf-qj',
},
'api': {
'public': {
'get': [
'countries',
'data/{currency}/ticker',
'data/{currency}/trades',
'data/{currency}/depth',
'bitcoin_charts/{id}/trades',
'bitcoin_charts/{id}/depth',
],
},
'private': {
'get': [
'user',
'user/addresses',
'user/addresses/{address}',
'user/orders',
'user/orders/{uuid}',
'user/price_alerts',
'merchant/get_payment/{uuid}',
],
'post': [
'user/addresses',
'user/orders',
'user/withdrawals',
'user/email_transfers',
'user/payment_requests',
'user/price_alerts',
'merchant/create_payment',
],
'delete': [
'user/orders/{uuid}',
'user/orders/{uuid}/cancel',
'user/price_alerts/{id}',
],
},
},
'markets': {
'BTC/EUR': { 'id': 'eur', 'symbol': 'BTC/EUR', 'base': 'BTC', 'quote': 'EUR', 'baseId': 'btc', 'quoteId': 'eur' },
},
'fees': {
'trading': {
'maker': 0.002,
'taker': 0.002,
},
},
});
}
async fetchBalance (params = {}) {
await this.loadMarkets ();
const response = await this.privateGetUser (params);
const result = { 'info': response };
const currencies = Object.keys (this.currencies);
for (let i = 0; i < currencies.length; i++) {
const code = currencies[i];
const currencyId = this.currencyId (code);
const free = 'balance_' + currencyId;
if (free in response) {
const account = this.account ();
const used = 'locked_' + currencyId;
account['free'] = this.safeString (response, free);
account['used'] = this.safeString (response, used);
result[code] = account;
}
}
return this.parseBalance (result, false);
}
async fetchOrderBook (symbol, limit = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'currency': this.marketId (symbol),
};
const response = await this.publicGetDataCurrencyDepth (this.extend (request, params));
return this.parseOrderBook (response, symbol, undefined, 'bids', 'asks', 'price', 'amount');
}
async fetchTicker (symbol, params = {}) {
await this.loadMarkets ();
const request = {
'currency': this.marketId (symbol),
};
const ticker = await this.publicGetDataCurrencyTicker (this.extend (request, params));
const timestamp = this.safeTimestamp (ticker, 'at');
const vwap = this.safeNumber (ticker, 'vwap');
const baseVolume = this.safeNumber (ticker, 'volume');
let quoteVolume = undefined;
if (baseVolume !== undefined && vwap !== undefined) {
quoteVolume = baseVolume * vwap;
}
const last = this.safeNumber (ticker, 'price');
return {
'symbol': symbol,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'high': this.safeNumber (ticker, 'high'),
'low': this.safeNumber (ticker, 'low'),
'bid': this.safeNumber (ticker, 'bid'),
'bidVolume': undefined,
'ask': this.safeNumber (ticker, 'ask'),
'askVolume': undefined,
'vwap': vwap,
'open': this.safeNumber (ticker, 'open'),
'close': last,
'last': last,
'previousClose': undefined,
'change': undefined,
'percentage': this.safeNumber (ticker, 'variation'),
'average': undefined,
'baseVolume': baseVolume,
'quoteVolume': quoteVolume,
'info': ticker,
};
}
parseTrade (trade, market) {
const timestamp = this.safeTimestamp (trade, 'created_at_int');
const id = this.safeString (trade, 'uuid');
let symbol = undefined;
if (market !== undefined) {
symbol = market['symbol'];
}
const side = this.safeString (trade, 'side');
const priceString = this.safeString (trade, 'price');
const amountField = 'traded_' + market['base'].toLowerCase ();
const amountString = this.safeString (trade, amountField);
const price = this.parseNumber (priceString);
const amount = this.parseNumber (amountString);
const cost = this.parseNumber (Precise.stringMul (priceString, amountString));
return {
'info': trade,
'id': id,
'order': undefined,
'timestamp': timestamp,
'datetime': this.iso8601 (timestamp),
'symbol': symbol,
'type': undefined,
'side': side,
'takerOrMaker': undefined,
'price': price,
'amount': amount,
'cost': cost,
'fee': undefined,
};
}
async fetchTrades (symbol, since = undefined, limit = undefined, params = {}) {
await this.loadMarkets ();
const market = this.market (symbol);
const request = {
'currency': market['id'],
};
const response = await this.publicGetDataCurrencyTrades (this.extend (request, params));
return this.parseTrades (response, market, since, limit);
}
async createOrder (symbol, type, side, amount, price = undefined, params = {}) {
await this.loadMarkets ();
const request = {
'type': this.capitalize (type) + 'Order',
'currency': this.marketId (symbol),
'direction': side,
'amount': amount,
};
if (type !== 'market') {
request['price'] = price;
}
const response = await this.privatePostUserOrders (this.extend (request, params));
return {
'info': response,
'id': response['uuid'],
};
}
async cancelOrder (id, symbol = undefined, params = {}) {
const request = {
'uuid': id,
};
return await this.privateDeleteUserOrdersUuidCancel (this.extend (request, params));
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let url = this.urls['api'] + '/' + this.version + '/' + this.implodeParams (path, params);
const query = this.omit (params, this.extractParams (path));
if (api === 'public') {
if (Object.keys (query).length) {
url += '?' + this.urlencode (query);
}
} else {
this.checkRequiredCredentials ();
const nonce = this.nonce ().toString ();
let auth = nonce + url;
headers = {
'Api-Key': this.apiKey,
'Api-Nonce': nonce,
};
if (method === 'POST') {
if (Object.keys (query).length) {
body = this.json (query);
auth += body;
headers['Content-Type'] = 'application/json';
}
} else {
if (Object.keys (query).length) {
const queryString = this.urlencode (query);
auth += queryString;
url += '?' + queryString;
}
}
headers['Api-Signature'] = this.hmac (this.encode (auth), this.encode (this.secret));
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
async request (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
const response = await this.fetch2 (path, api, method, params, headers, body);
if ('errors' in response) {
throw new ExchangeError (this.id + ' ' + this.json (response));
}
return response;
}
};