add ignore pong response to socketClient

BitMEX · Dec 7, 2020 · d678c05 · d678c05
1 parent aa55e7f
commit d678c05
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diff --git a/official-ws/nodejs/README.md b/official-ws/nodejs/README.md
@@ -133,3 +133,13 @@ DEBUG=* node example.js
 # Display all high-level debug messages
 DEBUG=BitMEX:* node example.js
 ```
+
+### Heartbeat
+https://www.bitmex.com/app/wsAPI#Heartbeats
+
+you can implement a more thorough solution, but hope this helps along
+```
+setInterval(() => {
+  client.socket.send("ping")
+}, 30 * 1000); // sends ping every 30 s
+```
diff --git a/official-ws/nodejs/lib/createSocket.js b/official-ws/nodejs/lib/createSocket.js
@@ -33,6 +33,9 @@ module.exports = function createSocket(options, bmexClient) {
 
   wsClient.onmessage = function(data) {
     try {
+      if (data === "pong") {
+        return;
+      }
       data = JSON.parse(data);
       debug('Received %j', data);
     } catch(e) {