Events: System Events

System events are events that are emitted by the system itself. There is no other way to get this information than through these events.

Entity Types

Entity Type	Component	Property	Data Type	Socket Type
System Event	event	event	Any	Output
	labeled	label	String	None

Types of Events

Label	Description	Payload
`/io/reactive-graph/events/type/component/created`	Triggered if a component has been created	Name of the created component
`/io/reactive-graph/events/type/component/deleted`	Triggered if a component has been deleted	Name of the deleted component
`/io/reactive-graph/events/type/entity/created`	Triggered if an entity type has been created	Name of the created entity type
`/io/reactive-graph/events/type/entity/deleted`	Triggered if an entity type has been deleted	Name of the deleted entity type
`/io/reactive-graph/events/type/relation/created`	Triggered if a relation type has been created	Name of the created relation type
`/io/reactive-graph/events/type/relation/deleted`	Triggered if a relation type has been deleted	Name of the deleted relation type
`/io/reactive-graph/event/type/changed`	Triggered if the type system has changed
`/io/reactive-graph/events/instance/entity/created`	Triggered if an entity instance has been created	UUID of the created entity instance
`/io/reactive-graph/events/instance/entity/deleted`	Triggered if an entity instance has been deleted	UUID of the deleted entity instance
`/io/reactive-graph/events/instance/relation/created`	Triggered if a relation instance has been created	Edge key of the created relation instance
`/io/reactive-graph/events/instance/relation/deleted`	Triggered if a relation instance has been deleted	Edge key of the deleted relation instance
`/io/reactive-graph/events/flow/created`	Triggered if a flow has been created	UUID of the created flow
`/io/reactive-graph/events/flow/deleted`	Triggered if a flow has been deleted	UUID of the deleted flow

Label

Subscribing to these events is easily possible with a label.

GraphQL Subscription

It is possible to subscribe to these events via GraphQL subscription.

Transform and Zip Multiple Events

Instead of subscribing multiple events directly you can zip multiple events and subscribe to the result.

Get new components

subscription getSystemEventComponentCreated {
  entity(label: "/io/reactive-graph/event/type/component/created", propertyName: "event") {
    name
    value
    type {
      dataType
      socketType
    }
  }
}

Get which components have been deleted

subscription getSystemEventComponentDeleted {
  entity(label: "/io/reactive-graph/event/type/component/deleted", propertyName: "event") {
    name
    value
    type {
      dataType
      socketType
    }
  }
}

Get new flows

subscription getSystemEventFlowCreated {
  entity(label: "/io/reactive-graph/event/instance/flow/created", propertyName: "event") {
    name
    value
    type {
      dataType
      socketType
    }
  }
}

Get which flows have been deleted

subscription getSystemEventCFlowDeleted {
  entity(label: "/io/reactive-graph/event/instance/flow/deleted", propertyName: "event") {
    name
    value
    type {
      dataType
      socketType
    }
  }
}

Reactive Graph