bot18
Version:
A high-frequency cryptocurrency trading bot by Zenbot creator @carlos8f
251 lines (242 loc) • 11.6 kB
JavaScript
'use strict';
// ----------------------------------------------------------------------------
const Exchange = require ('./base/Exchange');
const { ExchangeError, AuthenticationError, DDoSProtection } = require ('./base/errors');
// ----------------------------------------------------------------------------
module.exports = class coinbase extends Exchange {
describe () {
return this.deepExtend (super.describe (), {
'id': 'coinbase',
'name': 'coinbase',
'countries': 'US',
'rateLimit': 1000,
'version': 'v2',
'userAgent': this.userAgents['chrome'],
'has': {
'CORS': true,
'cancelOrder': false,
'createDepositAddress': false,
'createOrder': false,
'deposit': false,
'fetchBalance': true,
'fetchClosedOrders': false,
'fetchCurrencies': false,
'fetchDepositAddress': false,
'fetchMarkets': false,
'fetchMyTrades': false,
'fetchOHLCV': false,
'fetchOpenOrders': false,
'fetchOrder': false,
'fetchOrderBook': false,
'fetchOrders': false,
'fetchTicker': false,
'fetchTickers': false,
'fetchBidsAsks': false,
'fetchTrades': false,
'withdraw': false,
'fetchTransactions': false,
'fetchDeposits': false,
'fetchWithdrawals': false,
},
'urls': {
'logo': 'https://user-images.githubusercontent.com/1294454/40811661-b6eceae2-653a-11e8-829e-10bfadb078cf.jpg',
'api': 'https://api.coinbase.com',
'www': 'https://www.coinbase.com',
'doc': 'https://developers.coinbase.com/api/v2',
'fees': 'https://support.coinbase.com/customer/portal/articles/2109597-buy-sell-bank-transfer-fees',
},
'requiredCredentials': {
'apiKey': true,
'secret': true,
},
'api': {
'public': {
'get': [
'currencies',
'time',
'exchange-rates',
'users/{user_id}',
'prices/{currency_pair}/buy',
'prices/{currency_pair}/sell',
'prices/{currency_pair}/spot',
],
},
'private': {
'get': [
'accounts',
'accounts/{account_id}',
'accounts/{account_id}/addresses',
'accounts/{account_id}/addresses/{address_id}',
'accounts/{account_id}/addresses/{address_id}/transactions',
'accounts/{account_id}/transactions',
'accounts/{account_id}/transactions/{transaction_id}',
'accounts/{account_id}/buys',
'accounts/{account_id}/buys/{buy_id}',
'accounts/{account_id}/sells',
'accounts/{account_id}/sells/{sell_id}',
'accounts/{account_id}/deposits',
'accounts/{account_id}/deposits/{deposit_id}',
'accounts/{account_id}/withdrawals',
'accounts/{account_id}/withdrawals/{withdrawal_id}',
'payment-methods',
'payment-methods/{payment_method_id}',
'user',
'user/auth',
],
'post': [
'accounts',
'accounts/{account_id}/primary',
'accounts/{account_id}/addresses',
'accounts/{account_id}/transactions',
'accounts/{account_id}/transactions/{transaction_id}/complete',
'accounts/{account_id}/transactions/{transaction_id}/resend',
'accounts/{account_id}/buys',
'accounts/{account_id}/buys/{buy_id}/commit',
'accounts/{account_id}/sells',
'accounts/{account_id}/sells/{sell_id}/commit',
'accounts/{account_id}/deposists',
'accounts/{account_id}/deposists/{deposit_id}/commit',
'accounts/{account_id}/withdrawals',
'accounts/{account_id}/withdrawals/{withdrawal_id}/commit',
],
'put': [
'accounts/{account_id}',
'user',
],
'delete': [
'accounts/{id}',
'accounts/{account_id}/transactions/{transaction_id}',
],
},
},
'exceptions': {
'two_factor_required': AuthenticationError, // 402 When sending money over 2fa limit
'param_required': ExchangeError, // 400 Missing parameter
'validation_error': ExchangeError, // 400 Unable to validate POST/PUT
'invalid_request': ExchangeError, // 400 Invalid request
'personal_details_required': AuthenticationError, // 400 User’s personal detail required to complete this request
'identity_verification_required': AuthenticationError, // 400 Identity verification is required to complete this request
'jumio_verification_required': AuthenticationError, // 400 Document verification is required to complete this request
'jumio_face_match_verification_required': AuthenticationError, // 400 Document verification including face match is required to complete this request
'unverified_email': AuthenticationError, // 400 User has not verified their email
'authentication_error': AuthenticationError, // 401 Invalid auth (generic)
'invalid_token': AuthenticationError, // 401 Invalid Oauth token
'revoked_token': AuthenticationError, // 401 Revoked Oauth token
'expired_token': AuthenticationError, // 401 Expired Oauth token
'invalid_scope': AuthenticationError, // 403 User hasn’t authenticated necessary scope
'not_found': ExchangeError, // 404 Resource not found
'rate_limit_exceeded': DDoSProtection, // 429 Rate limit exceeded
'internal_server_error': ExchangeError, // 500 Internal server error
},
'markets': {
'BTC/USD': { 'id': 'btc-usd', 'symbol': 'BTC/USD', 'base': 'BTC', 'quote': 'USD' },
'LTC/USD': { 'id': 'ltc-usd', 'symbol': 'LTC/USD', 'base': 'LTC', 'quote': 'USD' },
'ETH/USD': { 'id': 'eth-usd', 'symbol': 'ETH/USD', 'base': 'ETH', 'quote': 'USD' },
'BCH/USD': { 'id': 'bch-usd', 'symbol': 'BCH/USD', 'base': 'BCH', 'quote': 'USD' },
},
});
}
async fetchTime () {
let response = await this.publicGetTime ();
return this.parse8601 (response['data']['iso']);
}
async fetchBalance (params = {}) {
let balances = await this.privateGetAccounts ();
let result = { 'info': balances };
for (let b = 0; b < balances.data.length; b++) {
let balance = balances.data[b];
let currency = balance['balance']['currency'];
let account = {
'free': this.safeFloat (balance['balance'], 'amount'),
'used': undefined,
'total': this.safeFloat (balance['balance'], 'amount'),
};
result[currency] = account;
}
return this.parseBalance (result);
}
sign (path, api = 'public', method = 'GET', params = {}, headers = undefined, body = undefined) {
let request = '/' + this.implodeParams (path, params);
let query = this.omit (params, this.extractParams (path));
if (method === 'GET') {
if (Object.keys (query).length)
request += '?' + this.urlencode (query);
}
let url = this.urls['api'] + '/' + this.version + request;
if (api === 'private') {
this.checkRequiredCredentials ();
let nonce = this.nonce ().toString ();
let payload = '';
if (method !== 'GET') {
if (Object.keys (query).length) {
body = this.json (query);
payload = body;
}
}
let what = nonce + method + '/' + this.version + request + payload;
let signature = this.hmac (this.encode (what), this.secret);
headers = {
'CB-ACCESS-KEY': this.apiKey,
'CB-ACCESS-SIGN': this.decode (signature),
'CB-ACCESS-TIMESTAMP': nonce,
'CB-VERSION': '2018-05-30',
'Content-Type': 'application/json',
};
}
if (!headers) {
headers = {
'CB-VERSION': '2018-05-30',
};
}
return { 'url': url, 'method': method, 'body': body, 'headers': headers };
}
handleErrors (code, reason, url, method, headers, body) {
if (typeof body !== 'string')
return; // fallback to default error handler
if (body.length < 2)
return; // fallback to default error handler
if ((body[0] === '{') || (body[0] === '[')) {
let response = JSON.parse (body);
let feedback = this.id + ' ' + body;
//
// {"error": "invalid_request", "error_description": "The request is missing a required parameter, includes an unsupported parameter value, or is otherwise malformed."}
//
// or
//
// {
// "errors": [
// {
// "id": "not_found",
// "message": "Not found"
// }
// ]
// }
//
let exceptions = this.exceptions;
let errorCode = this.safeString (response, 'error');
if (typeof errorCode !== 'undefined') {
if (errorCode in exceptions) {
throw new exceptions[errorCode] (feedback);
} else {
throw new ExchangeError (feedback);
}
}
let errors = this.safeValue (response, 'errors');
if (typeof errors !== 'undefined') {
if (Array.isArray (errors)) {
let numErrors = errors.length;
if (numErrors > 0) {
errorCode = this.safeString (errors[0], 'id');
if (typeof errorCode !== 'undefined') {
if (errorCode in exceptions) {
throw new exceptions[errorCode] (feedback);
} else {
throw new ExchangeError (feedback);
}
}
}
}
}
}
}
};