DataSync: Configurable message timeout

lib/IHP/DataSync/ihp-datasync.js

@@ -54,6 +54,9 @@ class DataSyncController {
         // When doing optimistic inserts, we want to optimistically set the `createdAt` field, if the record will have such a field after insert
         // For that we need to keep track of all tables that have a `createdAt` field.
         this.optimisticCreatedNeedsCreatedAtField = new Set();
+
+        // The websocket times out after not receiving a reply for 5 seconds
+        this.messageTimeout = 5000;
     }
 
     async startConnection() {
@@ -174,7 +177,7 @@ class DataSyncController {
                 this.connection.send(JSON.stringify(payload));
 
                 if (!this.pendingRequestTimeout) {
-                    this.pendingRequestTimeout = setTimeout(this.onPendingRequestTimeout.bind(this), 5000);
+                    this.pendingRequestTimeout = setTimeout(this.onPendingRequestTimeout.bind(this), this.messageTimeout);
                 }
             }
         });