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cex.php
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<?php
namespace ccxt;
// PLEASE DO NOT EDIT THIS FILE, IT IS GENERATED AND WILL BE OVERWRITTEN:
// https://github.com/ccxt/ccxt/blob/master/CONTRIBUTING.md#how-to-contribute-code
class cex extends Exchange {
public function describe () {
return array_replace_recursive (parent::describe (), array (
'id' => 'cex',
'name' => 'CEX.IO',
'countries' => array ( 'GB', 'EU', 'CY', 'RU' ),
'rateLimit' => 1500,
'has' => array (
'CORS' => true,
'fetchTickers' => true,
'fetchOHLCV' => true,
'fetchOpenOrders' => true,
'fetchClosedOrders' => true,
'fetchOrders' => true,
'fetchDepositAddress' => true,
),
'timeframes' => array (
'1m' => '1m',
),
'urls' => array (
'logo' => 'https://user-images.githubusercontent.com/1294454/27766442-8ddc33b0-5ed8-11e7-8b98-f786aef0f3c9.jpg',
'api' => 'https://cex.io/api',
'www' => 'https://cex.io',
'doc' => 'https://cex.io/cex-api',
'fees' => array (
'https://cex.io/fee-schedule',
'https://cex.io/limits-commissions',
),
),
'requiredCredentials' => array (
'apiKey' => true,
'secret' => true,
'uid' => true,
),
'api' => array (
'public' => array (
'get' => array (
'currency_limits/',
'last_price/{pair}/',
'last_prices/{currencies}/',
'ohlcv/hd/{yyyymmdd}/{pair}',
'order_book/{pair}/',
'ticker/{pair}/',
'tickers/{currencies}/',
'trade_history/{pair}/',
),
'post' => array (
'convert/{pair}',
'price_stats/{pair}',
),
),
'private' => array (
'post' => array (
'active_orders_status/',
'archived_orders/{pair}/',
'balance/',
'cancel_order/',
'cancel_orders/{pair}/',
'cancel_replace_order/{pair}/',
'close_position/{pair}/',
'get_address/',
'get_myfee/',
'get_order/',
'get_order_tx/',
'open_orders/{pair}/',
'open_orders/',
'open_position/{pair}/',
'open_positions/{pair}/',
'place_order/{pair}/',
),
),
),
'fees' => array (
'trading' => array (
'maker' => 0.16 / 100,
'taker' => 0.25 / 100,
),
'funding' => array (
'withdraw' => array (
// 'USD' => null,
// 'EUR' => null,
// 'RUB' => null,
// 'GBP' => null,
'BTC' => 0.001,
'ETH' => 0.01,
'BCH' => 0.001,
'DASH' => 0.01,
'BTG' => 0.001,
'ZEC' => 0.001,
'XRP' => 0.02,
),
'deposit' => array (
// 'USD' => amount => amount * 0.035 . 0.25,
// 'EUR' => amount => amount * 0.035 . 0.24,
// 'RUB' => amount => amount * 0.05 . 15.57,
// 'GBP' => amount => amount * 0.035 . 0.2,
'BTC' => 0.0,
'ETH' => 0.0,
'BCH' => 0.0,
'DASH' => 0.0,
'BTG' => 0.0,
'ZEC' => 0.0,
'XRP' => 0.0,
'XLM' => 0.0,
),
),
),
));
}
public function fetch_markets () {
$markets = $this->publicGetCurrencyLimits ();
$result = array ();
for ($p = 0; $p < count ($markets['data']['pairs']); $p++) {
$market = $markets['data']['pairs'][$p];
$id = $market['symbol1'] . '/' . $market['symbol2'];
$symbol = $id;
list ($base, $quote) = explode ('/', $symbol);
$result[] = array (
'id' => $id,
'info' => $market,
'symbol' => $symbol,
'base' => $base,
'quote' => $quote,
'lot' => $market['minLotSize'],
'precision' => array (
'price' => $this->precision_from_string($market['minPrice']),
'amount' => -1 * log10 ($market['minLotSize']),
),
'limits' => array (
'amount' => array (
'min' => $market['minLotSize'],
'max' => $market['maxLotSize'],
),
'price' => array (
'min' => floatval ($market['minPrice']),
'max' => floatval ($market['maxPrice']),
),
'cost' => array (
'min' => $market['minLotSizeS2'],
'max' => null,
),
),
);
}
return $result;
}
public function fetch_balance ($params = array ()) {
$this->load_markets();
$response = $this->privatePostBalance ();
$result = array ( 'info' => $response );
$ommited = array ( 'username', 'timestamp' );
$balances = $this->omit ($response, $ommited);
$currencies = is_array ($balances) ? array_keys ($balances) : array ();
for ($i = 0; $i < count ($currencies); $i++) {
$currency = $currencies[$i];
if (is_array ($balances) && array_key_exists ($currency, $balances)) {
$account = array (
'free' => $this->safe_float($balances[$currency], 'available', 0.0),
'used' => $this->safe_float($balances[$currency], 'orders', 0.0),
'total' => 0.0,
);
$account['total'] = $this->sum ($account['free'], $account['used']);
$result[$currency] = $account;
}
}
return $this->parse_balance($result);
}
public function fetch_order_book ($symbol, $limit = null, $params = array ()) {
$this->load_markets();
$orderbook = $this->publicGetOrderBookPair (array_merge (array (
'pair' => $this->market_id($symbol),
), $params));
$timestamp = $orderbook['timestamp'] * 1000;
return $this->parse_order_book($orderbook, $timestamp);
}
public function parse_ohlcv ($ohlcv, $market = null, $timeframe = '1m', $since = null, $limit = null) {
return [
$ohlcv[0] * 1000,
$ohlcv[1],
$ohlcv[2],
$ohlcv[3],
$ohlcv[4],
$ohlcv[5],
];
}
public function fetch_ohlcv ($symbol, $timeframe = '1m', $since = null, $limit = null, $params = array ()) {
$this->load_markets();
$market = $this->market ($symbol);
if (!$since)
$since = $this->milliseconds () - 86400000; // yesterday
$ymd = $this->ymd ($since);
$ymd = explode ('-', $ymd);
$ymd = implode ('', $ymd);
$request = array (
'pair' => $market['id'],
'yyyymmdd' => $ymd,
);
$response = $this->publicGetOhlcvHdYyyymmddPair (array_merge ($request, $params));
$key = 'data' . $this->timeframes[$timeframe];
$ohlcvs = json_decode ($response[$key], $as_associative_array = true);
return $this->parse_ohlcvs($ohlcvs, $market, $timeframe, $since, $limit);
}
public function parse_ticker ($ticker, $market = null) {
$timestamp = null;
$iso8601 = null;
if (is_array ($ticker) && array_key_exists ('timestamp', $ticker)) {
$timestamp = intval ($ticker['timestamp']) * 1000;
$iso8601 = $this->iso8601 ($timestamp);
}
$volume = $this->safe_float($ticker, 'volume');
$high = $this->safe_float($ticker, 'high');
$low = $this->safe_float($ticker, 'low');
$bid = $this->safe_float($ticker, 'bid');
$ask = $this->safe_float($ticker, 'ask');
$last = $this->safe_float($ticker, 'last');
$symbol = null;
if ($market)
$symbol = $market['symbol'];
return array (
'symbol' => $symbol,
'timestamp' => $timestamp,
'datetime' => $iso8601,
'high' => $high,
'low' => $low,
'bid' => $bid,
'bidVolume' => null,
'ask' => $ask,
'askVolume' => null,
'vwap' => null,
'open' => null,
'close' => $last,
'last' => $last,
'previousClose' => null,
'change' => null,
'percentage' => null,
'average' => null,
'baseVolume' => $volume,
'quoteVolume' => null,
'info' => $ticker,
);
}
public function fetch_tickers ($symbols = null, $params = array ()) {
$this->load_markets();
$currencies = is_array ($this->currencies) ? array_keys ($this->currencies) : array ();
$response = $this->publicGetTickersCurrencies (array_merge (array (
'currencies' => implode ('/', $currencies),
), $params));
$tickers = $response['data'];
$result = array ();
for ($t = 0; $t < count ($tickers); $t++) {
$ticker = $tickers[$t];
$symbol = str_replace (':', '/', $ticker['pair']);
$market = $this->markets[$symbol];
$result[$symbol] = $this->parse_ticker($ticker, $market);
}
return $result;
}
public function fetch_ticker ($symbol, $params = array ()) {
$this->load_markets();
$market = $this->market ($symbol);
$ticker = $this->publicGetTickerPair (array_merge (array (
'pair' => $market['id'],
), $params));
return $this->parse_ticker($ticker, $market);
}
public function parse_trade ($trade, $market = null) {
$timestamp = intval ($trade['date']) * 1000;
return array (
'info' => $trade,
'id' => $trade['tid'],
'timestamp' => $timestamp,
'datetime' => $this->iso8601 ($timestamp),
'symbol' => $market['symbol'],
'type' => null,
'side' => $trade['type'],
'price' => floatval ($trade['price']),
'amount' => floatval ($trade['amount']),
);
}
public function fetch_trades ($symbol, $since = null, $limit = null, $params = array ()) {
$this->load_markets();
$market = $this->market ($symbol);
$response = $this->publicGetTradeHistoryPair (array_merge (array (
'pair' => $market['id'],
), $params));
return $this->parse_trades($response, $market, $since, $limit);
}
public function create_order ($symbol, $type, $side, $amount, $price = null, $params = array ()) {
$this->load_markets();
$order = array (
'pair' => $this->market_id($symbol),
'type' => $side,
'amount' => $amount,
);
if ($type === 'limit') {
$order['price'] = $price;
} else {
// for market buy CEX.io requires the $amount of quote currency to spend
if ($side === 'buy') {
if (!$price) {
throw new InvalidOrder ('For market buy orders ' . $this->id . " requires the $amount of quote currency to spend, to calculate proper costs call createOrder ($symbol, 'market', 'buy', $amount, $price)");
}
$order['amount'] = $amount * $price;
}
$order['order_type'] = $type;
}
$response = $this->privatePostPlaceOrderPair (array_merge ($order, $params));
return array (
'info' => $response,
'id' => $response['id'],
);
}
public function cancel_order ($id, $symbol = null, $params = array ()) {
$this->load_markets();
return $this->privatePostCancelOrder (array ( 'id' => $id ));
}
public function parse_order ($order, $market = null) {
// Depending on the call, 'time' can be a unix int, unix string or ISO string
// Yes, really
$timestamp = $order['time'];
if (gettype ($order['time']) == 'string' && mb_strpos ($order['time'], 'T') !== false) {
// ISO8601 string
$timestamp = $this->parse8601 ($timestamp);
} else {
// either integer or string integer
$timestamp = intval ($timestamp);
}
$symbol = null;
if (!$market) {
$symbol = $order['symbol1'] . '/' . $order['symbol2'];
if (is_array ($this->markets) && array_key_exists ($symbol, $this->markets))
$market = $this->market ($symbol);
}
$status = $order['status'];
if ($status === 'a') {
$status = 'open'; // the unified $status
} else if ($status === 'cd') {
$status = 'canceled';
} else if ($status === 'c') {
$status = 'canceled';
} else if ($status === 'd') {
$status = 'closed';
}
$price = $this->safe_float($order, 'price');
$amount = $this->safe_float($order, 'amount');
$remaining = $this->safe_float($order, 'pending');
if (!$remaining)
$remaining = $this->safe_float($order, 'remains');
$filled = $amount - $remaining;
$fee = null;
$cost = null;
if ($market) {
$symbol = $market['symbol'];
$cost = $this->safe_float($order, 'ta:' . $market['quote']);
if ($cost === null)
$cost = $this->safe_float($order, 'tta:' . $market['quote']);
$baseFee = 'fa:' . $market['base'];
$baseTakerFee = 'tfa:' . $market['base'];
$quoteFee = 'fa:' . $market['quote'];
$quoteTakerFee = 'tfa:' . $market['quote'];
$feeRate = $this->safe_float($order, 'tradingFeeMaker');
if (!$feeRate)
$feeRate = $this->safe_float($order, 'tradingFeeTaker', $feeRate);
if ($feeRate)
$feeRate /= 100.0; // convert to mathematically-correct percentage coefficients => 1.0 = 100%
if ((is_array ($order) && array_key_exists ($baseFee, $order)) || (is_array ($order) && array_key_exists ($baseTakerFee, $order))) {
$baseFeeCost = $this->safe_float($order, $baseFee);
if ($baseFeeCost === null)
$baseFeeCost = $this->safe_float($order, $baseTakerFee);
$fee = array (
'currency' => $market['base'],
'rate' => $feeRate,
'cost' => $baseFeeCost,
);
} else if ((is_array ($order) && array_key_exists ($quoteFee, $order)) || (is_array ($order) && array_key_exists ($quoteTakerFee, $order))) {
$quoteFeeCost = $this->safe_float($order, $quoteFee);
if ($quoteFeeCost === null)
$quoteFeeCost = $this->safe_float($order, $quoteTakerFee);
$fee = array (
'currency' => $market['quote'],
'rate' => $feeRate,
'cost' => $quoteFeeCost,
);
}
}
if (!$cost)
$cost = $price * $filled;
return array (
'id' => $order['id'],
'datetime' => $this->iso8601 ($timestamp),
'timestamp' => $timestamp,
'status' => $status,
'symbol' => $symbol,
'type' => null,
'side' => $order['type'],
'price' => $price,
'cost' => $cost,
'amount' => $amount,
'filled' => $filled,
'remaining' => $remaining,
'trades' => null,
'fee' => $fee,
'info' => $order,
);
}
public function fetch_open_orders ($symbol = null, $since = null, $limit = null, $params = array ()) {
$this->load_markets();
$request = array ();
$method = 'privatePostOpenOrders';
$market = null;
if ($symbol) {
$market = $this->market ($symbol);
$request['pair'] = $market['id'];
$method .= 'Pair';
}
$orders = $this->$method (array_merge ($request, $params));
for ($i = 0; $i < count ($orders); $i++) {
$orders[$i] = array_merge ($orders[$i], array ( 'status' => 'open' ));
}
return $this->parse_orders($orders, $market, $since, $limit);
}
public function fetch_closed_orders ($symbol = null, $since = null, $limit = null, $params = array ()) {
$this->load_markets();
$method = 'privatePostArchivedOrdersPair';
if ($symbol === null) {
throw new NotSupported ($this->id . ' fetchClosedOrders requires a $symbol argument');
}
$market = $this->market ($symbol);
$request = array ( 'pair' => $market['id'] );
$response = $this->$method (array_merge ($request, $params));
return $this->parse_orders($response, $market, $since, $limit);
}
public function fetch_order ($id, $symbol = null, $params = array ()) {
$this->load_markets();
$response = $this->privatePostGetOrder (array_merge (array (
'id' => (string) $id,
), $params));
return $this->parse_order($response);
}
public function nonce () {
return $this->milliseconds ();
}
public function sign ($path, $api = 'public', $method = 'GET', $params = array (), $headers = null, $body = null) {
$url = $this->urls['api'] . '/' . $this->implode_params($path, $params);
$query = $this->omit ($params, $this->extract_params($path));
if ($api === 'public') {
if ($query)
$url .= '?' . $this->urlencode ($query);
} else {
$this->check_required_credentials();
$nonce = (string) $this->nonce ();
$auth = $nonce . $this->uid . $this->apiKey;
$signature = $this->hmac ($this->encode ($auth), $this->encode ($this->secret));
$body = $this->urlencode (array_merge (array (
'key' => $this->apiKey,
'signature' => strtoupper ($signature),
'nonce' => $nonce,
), $query));
$headers = array (
'Content-Type' => 'application/x-www-form-urlencoded',
);
}
return array ( 'url' => $url, 'method' => $method, 'body' => $body, 'headers' => $headers );
}
public function request ($path, $api = 'public', $method = 'GET', $params = array (), $headers = null, $body = null) {
$response = $this->fetch2 ($path, $api, $method, $params, $headers, $body);
if (!$response) {
throw new ExchangeError ($this->id . ' returned ' . $this->json ($response));
} else if ($response === true) {
return $response;
} else if (is_array ($response) && array_key_exists ('e', $response)) {
if (is_array ($response) && array_key_exists ('ok', $response))
if ($response['ok'] === 'ok')
return $response;
throw new ExchangeError ($this->id . ' ' . $this->json ($response));
} else if (is_array ($response) && array_key_exists ('error', $response)) {
if ($response['error'])
throw new ExchangeError ($this->id . ' ' . $this->json ($response));
}
return $response;
}
public function fetch_deposit_address ($code, $params = array ()) {
if ($code === 'XRP') {
// https://github.com/ccxt/ccxt/pull/2327#issuecomment-375204856
throw new NotSupported ($this->id . ' fetchDepositAddress does not support XRP addresses yet (awaiting docs from CEX.io)');
}
$this->load_markets();
$currency = $this->currency ($code);
$request = array (
'currency' => $currency['id'],
);
$response = $this->privatePostGetAddress (array_merge ($request, $params));
$address = $this->safe_string($response, 'data');
$this->check_address($address);
return array (
'currency' => $code,
'address' => $address,
'tag' => null,
'status' => 'ok',
'info' => $response,
);
}
}