Support Required for Nx Status Monitoring

We are integrating Nx VMS into our enterprise monitoring platform and would like guidance on the recommended architecture for collecting inventory, health, and live events at scale.

Our platform monitors and normalizes events, status, and alerts into a central monitoring system.

We are currently implementing using REST v3.

Inventory discovery is working successfully using:

• GET /rest/v3/system/info
• GET /rest/v3/devices
• GET /rest/v3/servers

We also tested:

• GET /rest/v3/servers/*/events

Questions:

1. Recommended mechanism for live events at scale
   We initially attempted to use:

• /ec2/transactionBus/websocket

However, we are receiving HTTP 403 during connection.

Questions:

• Is Transaction Bus still recommended for external integrations?
• Is it supported for Nx 6.x production integrations?
• What authentication method is required ?
• Are there permissions or configuration prerequisites?
• Is there a replacement mechanism that should be used instead?

1. Event Log polling architecture
   We tested:
   GET /rest/v3/servers/*/events

This endpoint returns event history successfully.

Questions:

• Is polling this endpoint every 30 seconds an acceptable and supported architecture?
• Is there a recommended polling interval?
• Is event log internally indexed for large systems (10k+ cameras)
• Is eventTimestampUsec the recommended checkpoint mechanism?

1. Detecting ONLINE recovery state
    We do not clearly see how to determine:

• Camera recovered / online
• Server recovered / online
• Recording resumed

Questions:

• Which event types indicate recovery/online state?
• Is there an event pair model (offline + online)?
• Should recovery always be validated using status APIs?

1. Lightweight status polling
   We want to avoid polling full:

• /rest/v3/devices
• /rest/v3/servers

every 30 seconds for large sites.

Questions:

• Is there a lightweight endpoint recommended only for current status?
• Is there a projection/filter mechanism to request only:
  • id
  • status
  • online/offline
  • recording state
• Is there a dedicated health/status endpoint for monitoring platforms?

1. Recommended architecture from Nx team
   For large external monitoring systems, what architecture do you recommend:

Option A
Inventory sync
+
Transaction Bus

Option B
Inventory sync
+
Event log polling

Option C
Inventory sync
+
Status polling