joeuhren
134 lines
4.0 KiB
JavaScript
134 lines
4.0 KiB
JavaScript
var request = require('postman-request');
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var base_url = 'https://api.crex24.com/v2/public';
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function get_summary(coin, exchange, cb) {
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var url=base_url + '/tickers?instrument=' + coin.toUpperCase() + '-' + exchange.toUpperCase();
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request({uri: url, json: true, headers: {'User-Agent': 'eiquidus'}}, function (error, response, body) {
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if (error) {
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return cb(error, null);
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} else if (body.error !== true) {
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var summary = {};
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summary['ask'] = body[0]['ask'];
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summary['bid'] = body[0]['bid'];
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summary['volume'] = body[0]['baseVolume'];
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summary['volume_btc'] = body[0]['volumeInBtc'];
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summary['high'] = body[0]['high'];
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summary['low'] = body[0]['low'];
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summary['last'] = body[0]['last'];
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summary['change'] = body[0]['percentChange'];
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return cb(null, summary);
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} else {
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return cb(error, null);
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}
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});
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}
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function get_trades(coin, exchange, cb) {
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var req_url = base_url + '/recentTrades?instrument=' + coin.toUpperCase() + '-' + exchange.toUpperCase();
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request({ uri: req_url, json: true, headers: {'User-Agent': 'eiquidus'}}, function (error, response, body) {
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if (error)
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return cb(error, null);
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else if (body.error !== true) {
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var trades = [];
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for (var i = 0; i < body.length; i++) {
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var trade = {
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ordertype: body[i].side,
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quantity: body[i].volume,
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price: body[i].price,
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timestamp: body[i].timestamp
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}
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trades.push(trade);
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}
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return cb(null, trades);
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} else
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return cb(body.Message, null);
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});
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}
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function get_orders(coin, exchange, cb) {
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var req_url = base_url + '/orderBook?instrument=' + coin.toUpperCase() + '-' + exchange.toUpperCase();
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request({ uri: req_url, json: true, headers: {'User-Agent': 'eiquidus'}}, function (error, response, body) {
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if (error)
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return cb(error, null);
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else if (body.error !== true) {
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var buys = [];
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var sells = [];
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if (body['buyLevels'].length > 0) {
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for (var i = 0; i < body['buyLevels'].length; i++) {
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var order = {
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price: body['buyLevels'][i].price,
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quantity: body['buyLevels'][i].volume
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}
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buys.push(order);
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}
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}
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if (body['sellLevels'].length > 0) {
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for (var i = 0; i < body['sellLevels'].length; i++) {
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var order = {
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price: body['sellLevels'][i].price,
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quantity: body['sellLevels'][i].volume
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}
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sells.push(order);
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}
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}
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return cb(null, buys, sells);
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} else
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return cb(body.Message, [], [])
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});
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}
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function get_chartdata(coin, exchange, cb) {
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var end = Date.now();
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end = end / 1000;
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start = end - 86400;
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var req_url = base_url + '/ohlcv?instrument=' + coin.toUpperCase() + '-' + exchange.toUpperCase() + '&granularity=15m&limit=100';
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request({ uri: req_url, json: true, headers: {'User-Agent': 'eiquidus'} }, function (error, response, chartdata) {
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if (error) {
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return cb(error, []);
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} else {
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var processed = [];
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for (var i = 0; i < chartdata.length; i++)
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processed.push([new Date(chartdata[i].timestamp).getTime(), parseFloat(chartdata[i].open), parseFloat(chartdata[i].high), parseFloat(chartdata[i].low), parseFloat(chartdata[i].close)]);
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return cb(null, processed);
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}
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});
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}
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module.exports = {
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market_name: 'Crex24',
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get_data: function(settings, cb) {
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var error = null;
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get_chartdata(settings.coin, settings.exchange, function (err, chartdata) {
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if (err) { chartdata = []; error = err; }
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get_orders(settings.coin, settings.exchange, function(err, buys, sells) {
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if (err) { error = err; }
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get_trades(settings.coin, settings.exchange, function(err, trades) {
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if (err) { error = err; }
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get_summary(settings.coin, settings.exchange, function(err, stats) {
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if (err) { error = err; }
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return cb(error, {buys: buys, sells: sells, chartdata: chartdata, trades: trades, stats: stats});
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});
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});
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});
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});
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}
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}; |