Add in the optimization where multiple websocket events can exist within a single message

core/chat/chatclient.go

@@ -135,6 +135,14 @@ func (c *ChatClient) writePump() {
 				log.Debugln(err)
 			}
 
+			// Optimization: Send multiple events in a single websocket message.
+			// Add queued chat messages to the current websocket message.
+			n := len(c.send)
+			for i := 0; i < n; i++ {
+				_, _ = w.Write(newline)
+				_, _ = w.Write(<-c.send)
+			}
+
 			if err := w.Close(); err != nil {
 				return
 			}

webroot/js/utils/websocket.js

@@ -153,6 +153,10 @@ export default class Websocket {
   pass it along to listeners.
   */
   onMessage(e) {
+    // Optimization where multiple events can be sent within a
+    // single websocket message. So split them if needed.
+    var messages = e.data.split('\n');
+    for (var i = 0; i < messages.length; i++) {
       try {
         var model = JSON.parse(e.data);
       } catch (e) {
@@ -174,6 +178,7 @@ export default class Websocket {
       // Notify any of the listeners via the raw socket message callback.
       this.notifyRawMessageListeners(model);
     }
+  }
 
   // Reply to a PING as a keep alive.
   sendPong() {