Defined BookTicker class for representing an orderbook ticker event

src/bookTicker.js

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+/**
+ * {
+ * "u":400900217, // order book updateId
+ * "s":"BNBUSDT", // symbol
+ * "b":"25.35190000", // best bid price
+ * "B":"31.21000000", // best bid qty
+ * "a":"25.36520000", // best ask price
+ * "A":"40.66000000" // best ask qty
+ * }
+ *
+ * @class BookTicker
+ */
+class BookTicker {
+ constructor({
+ exchange,
+ base,
+ quote,
+ bid,
+ bidVolume,
+ ask,
+ askVolume,
+ }) {
+ this.exchange = exchange;
+ this.base = base;
+ this.quote = quote;
+ this.timestamp = timestamp;
+ this.bid = bid;
+ this.bidVolume = bidVolume;
+ this.ask = ask;
+ this.askVolume = askVolume;
+ }
+
+ /**
+ * @deprecated use Market object (second argument to each event) to determine exchange and trade pair
+ */
+ get fullId() {
+ return `${this.exchange}:${this.base}/${this.quote}`;
+ }
+}
+
+module.exports = BookTicker;