Event Manager

The Event Manager creates, updates, and closes events in the Worlds platform via the GraphQL API. It’s the node that makes things happen in the Worlds UI — creating event records with metadata, snapshots, and associated tracks.

When to use

Place this node after the Event Orchestrator to execute the event action. You typically need two Event Manager nodes in a workflow — one on the “Create Event” output and one on the “Close Event” output.

Operations

Create Event
Update Event
Close Event
Get Event

Creates a new event in Worlds with full metadata.

Required fields

Parameter	Type	Description
Event Producer	Select	The event producer to create events under (dynamically loaded)
Event Type	String	Event category (e.g., “Operational”, “Safety”)
Event Subtype	String	Further categorization (e.g., “Obstruction Event”)
Start Time	DateTime	When the event started. Typically `={{$json.track_state.last_seen}}`

Optional fields

Parameter	Type	Description
End Time	DateTime	If provided, creates the event in a closed state. This also closes the event in the orchestrator’s local Redis cache, so you don’t need a separate close step in your workflow. This is particularly useful for batch mode workflows where the track has already expired and you know both the start and end time at creation.
Track IDs	String	Track IDs to associate with the event
Metadata	Key-Value pairs	Custom metadata (trackId, dataSourceID, tag, position, etc.)
Snapshots	Collection	Camera snapshots to attach (dataSourceId + timestamp)
Uploads	Collection	Binary data to upload (e.g., processed images, GIFs)

Advanced settings

Parameter	Type	Description
Site IDs	String	Comma-separated site IDs
Data Source IDs	String	Comma-separated data source IDs
Tags	String	Comma-separated tags
Priority	String	Event priority level
Draft	Boolean	Mark event as draft

Updates an existing event — adds metadata, snapshots, or track associations.

Parameter	Type	Description
Event ID	String	The event ID to update
Track IDs	String	Additional track IDs to associate
Metadata	Key-Value pairs	Metadata to merge with existing
Snapshots	Collection	Additional snapshots
Uploads	Collection	Additional uploads

Closes an existing event with final metadata.

Parameter	Type	Description
Event ID	String	The event ID to close. Typically `={{$json.eventOrchestrator.global_event_id}}`
End Time	DateTime	When the event ended. Typically `={{$json.track_state.last_seen}}`
Track IDs	String	Final track IDs
Metadata	Key-Value pairs	Final metadata (e.g., duration)
Snapshots	Collection	Final snapshots
Clips	Collection	Video clips (dataSourceId, startTime, endTime)
Uploads	Collection	Final uploads

Parameter	Type	Description
Scope Type	Select	track, zone, device, or site
Scope ID	String	The scope ID to query

Output

The create operation returns the created event data:

{
  "track_state": { ... },
  "createdEvent": {
    "id": "event-uuid-here",
    "startTime": "2026-01-13T15:18:52.005Z",
    "type": "Operational",
    "subType": "Obstruction Event"
  }
}

Credentials

Requires GraphQL Subscription API credentials.

Example

In the Batch Track State Workflow (batch), a single Event Manager creates the event with both start and end time — no close step needed
In the Streaming Zone State Workflow (streaming zone state), two Event Manager nodes are used — one to create and one to close when conditions clear
In the Streaming Track State Workflow (streaming track state), two Event Manager nodes handle create and close paths

Trigger Nodes

Check Nodes

Event Nodes

Action Nodes

When to use

Operations

Required fields

Optional fields

Advanced settings

Output

Credentials

Example

Trigger Nodes

Check Nodes

Event Nodes

Action Nodes

​When to use

​Operations

​Required fields

​Optional fields

​Advanced settings

​Output

​Credentials

​Example

When to use

Operations

Required fields

Optional fields

Advanced settings

Output

Credentials

Example