zb

zb.js

 const stream = 'wss://api.zb.com:9999/websocket';
 const WebSocket = require('ws');
 const options = {};
-const observerSymbol = ["btcusdt"];
+const observerSymbol = ["btcusdt", 'ethusdt', 'ltcusdt', 'eosusdt', 'bccusdt', 'etcusdt', 'qtumusdt', 'hsrusdt', 'xrpusdt'];
 const redis = require('redis');
 const redisClient = redis.createClient();
 const publishKey = "ZB@2";
@@ -51,9 +51,9 @@ const _subscribe = function(callback, opened_callback = false) {
 
 function subscribe() {
   _subscribe((depth) => {
-    console.log(depth.timestamp * 1000);
     const key = depth.channel.replace('_', '').toUpperCase() + '@zb';
     const symbol = depth.channel.replace('_depth', '').toUpperCase();
+    console.log(symbol + '@' + depth.timestamp * 1000 + ' latency=' + (Date.now() - depth.timestamp * 1000) + 'ms');
     const publishContent = JSON.stringify({symbol, time: depth.timestamp * 1000})
     const depthJson = JSON.stringify({asks: depth.asks.reverse(), bids: depth.bids, symbol})
     redisClient.set(key, depthJson);