depth

zb.js

@@ -14,6 +14,7 @@ const accountInfoChannel = "getaccountinfo";
 const APIKEY = "6b07db0c-dc4f-4a90-9955-665041bdbdbf";
 const APISECRET = "7ac9bcc3-5f0c-4eaf-99c9-80cb6a45165a";
 const lastEventTimeMap = {};
+const lastDataMap = {}
 let balanceByRestOk = true;
 let balanceByWebsocketOk = true;
 let currentIpIndex = 0;
@@ -179,8 +180,9 @@ function depthByRest(symbol,callback) {
       const key = symbol.replace('_', '').toUpperCase() + 'DEPTH@zb';
       symbol = symbol.toUpperCase();
       const lastEventTime = lastEventTimeMap[symbol] || 0;
-      if (data.timestamp > lastEventTime) {
+      if (data.timestamp > lastEventTime || (data.timestamp === lastEventTime && JSON.stringify(data) != JSON.stringify(lastDataMap[symbol]))) {
         lastEventTimeMap[symbol] = data.timestamp;
+        lastDataMap[symbol] = data;
         console.log(symbol + '@' + data.timestamp * 1000 + ' from rest');
         const publishContent = JSON.stringify({symbol, time: data.timestamp * 1000});
         const asks = data.asks.reverse();