joeuhren
102 lines
4.1 KiB
JavaScript
102 lines
4.1 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 summary = {};
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var url=base_url + '/tickers?instrument=' + coin.toUpperCase() + '-' + exchange.toUpperCase();
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request({uri: url, json: true}, 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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summary['ask'] = parseFloat(body[0]['ask']).toFixed(8);
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summary['bid'] = parseFloat(body[0]['bid']).toFixed(8);
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summary['volume'] = parseFloat(body[0]['baseVolume']).toFixed(8);
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summary['volume_btc'] = parseFloat(body[0]['volumeInBtc']).toFixed(8);
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summary['high'] = parseFloat(body[0]['high']).toFixed(8);
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summary['low'] = parseFloat(body[0]['low']).toFixed(8);
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summary['last'] = parseFloat(body[0]['last']).toFixed(8);
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summary['change'] = parseFloat(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 }, 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 tTrades = body;
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var trades = [];
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for (var i = 0; i < tTrades.length; i++) {
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var Trade = {
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orderpair: tTrades[i].Label,
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ordertype: tTrades[i].side,
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amount: parseFloat(tTrades[i].volume).toFixed(8),
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price: parseFloat(tTrades[i].price).toFixed(8),
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total: (parseFloat(tTrades[i].volume).toFixed(8) * parseFloat(tTrades[i].price)).toFixed(8),
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timestamp: parseInt((new Date(tTrades[i].timestamp).getTime() / 1000).toFixed(0))
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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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}
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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 }, 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 buyorders = body['buyLevels'];
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var sellorders = body['sellLevels'];
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var buys = [];
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var sells = [];
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if (buyorders.length > 0){
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for (var i = 0; i < buyorders.length; i++) {
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var order = {
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amount: parseFloat(buyorders[i].volume).toFixed(8),
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price: parseFloat(buyorders[i].price).toFixed(8),
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total: (parseFloat(buyorders[i].volume).toFixed(8) * parseFloat(buyorders[i].price)).toFixed(8)
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}
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buys.push(order);
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}
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} else {}
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if (sellorders.length > 0) {
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for (var x = 0; x < sellorders.length; x++) {
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var order = {
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amount: parseFloat(sellorders[x].volume).toFixed(8),
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price: parseFloat(sellorders[x].price).toFixed(8),
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total: (parseFloat(sellorders[x].volume).toFixed(8) * parseFloat(sellorders[x].price)).toFixed(8)
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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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module.exports = {
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get_data: function(coin, exchange, cb) {
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var error = null;
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get_orders(coin, exchange, function(err, buys, sells) {
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if (err) { error = err; }
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get_trades(coin, exchange, function(err, trades) {
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if (err) { error = err; }
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get_summary(coin, exchange, function(err, stats) {
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if (err) { error = err; }
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return cb(error, {buys: buys, sells: sells, 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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}; |