feat: add Exolo exchange driver

drivers/exolo.js

@@ -0,0 +1,33 @@
+const Driver = require('../models/driver');
+const request = require('../lib/request');
+const Ticker = require('../models/ticker');
+const { parseToFloat } = require('../lib/utils');
+
+/**
+ * @memberof Driver
+ * @augments Driver
+ */
+class Exolo extends Driver {
+  /**
+   * @augments Driver.fetchTickers
+   * @returns {Promise.Array<Ticker>} Returns a promise of an array with tickers.
+   */
+  async fetchTickers() {
+    const markets = await request('https://openapi.exolo.org/open/v2/pub/ticker');
+
+    return Object.keys(markets).map((market) => {
+      const ticker = markets[market];
+      const [base, quote] = market.split('_');
+
+      return new Ticker({
+        base,
+        quote,
+        close: parseToFloat(ticker.last_price),
+        baseVolume: parseToFloat(ticker['24_base_volume']),
+        quoteVolume: parseToFloat(ticker['24_quote_volume']),
+      });
+    });
+  }
+}
+
+module.exports = Exolo;

drivers/index.js

@@ -99,6 +99,7 @@ exports.Exenium = require('./exenium');
 exports.Exmarkets = require('./exmarkets');
 exports.Exmo = require('./exmo');
 exports.Exnce = require('./exnce');
+exports.Exolo = require('./exolo');
 exports.Extstock = require('./extstock');
 exports.Exx = require('./exx');
 exports.Fameex = require('./fameex');