About

AggregateEvent is used to indicate a change in the tag population of a device's read zone. For example, if a tag is removed from a device's read zone, an AggregateEvent message is published with the missing Tag EPCs listed as "Removes". If a tag is added to a device's read zone, an AggregateEvent message is published with the new Tag EPCs listed as "Adds". A single AggregateEvent can include multiple Adds and Removes.

Fields

PropertyDetails

Type

string
The type of Jetstream event.

EventId

string
Unique
The ID assigned to the event.

EventTime

string

The time that the event occurred.

The value is expressed in UTC.

This value is expressed in the following format: yyyy-MM-ddTHH:mm:ssZ

Version

int

The Jetstream version of the event.

Device

string

The name of the device.

ReceivedTime

string

The time that the event was received from the device.

The value is expressed in UTC.

This value is expressed in the following format: yyyy-MM-ddTHH:mm:ssZ

Adds

array(string)

The RFID tag EPC numbers newly introduced to the device's read zone.

Removes

array(string)
The RFID tag EPC numbers no longer found in the device's read zone.

PassRfid

string

For secured enclosures, the credential used to open the door.

For devices without secured access, this parameter will be an empty string.

Example

Published AggregateEvent (14 RFID Tag EPCs added, 9 RFID Tag EPCs removed)

{
    "PassRfid": "MyPassNumberOrMyAccessToken",
    "Adds": [
        "AD4424044148C57A5C0000B0",
        "AD4424044149857D5B0000C4",
        "AD4424044148ED765B0000B4",
        "AD4424044148E3745C0000B3",
        "AD4424044149AF7A5C0000C8",
        "AD44240441498F755B0000C5",
        "AD44240441497D725A0000C3",
        "AD4424044149B9775C0000C9",
        "AD442404414973765D0000C2",
        "AD442404414973775C0000C1",
        "AD4424044149A3795C0000C7",
        "AD4424044148D9795C0000B2",
        "AD4424044148CD775C0000B1",
        "AD4424044149C3765C0000CA"
    ],
    "Removes": [
        "AD4424044149F1765B0000CF",
        "AD4424044149FB7B5C0000D0",
        "AD4424044149E97A5C0000CE",
        "AD442404414A0F7B5C0000D2",
        "AD4424044149D57A5C0000CC",
        "AD4424044149DF795C0000CD",
        "AD442404414A057B5C0000D1",
        "AD4424044149CB775C0000CB",
        "AD442404414A19765C0000D3"
    ],
    "Device": "MyDeviceName",
    "ReceivedTime": "2018-05-19T13:23:44Z",
    "Type": "AggregateEvent",
    "EventId": "a85745f7-a348-4454-8a97-8eee2aeef853",
    "EventTime": "2018-05-19T13:23:36Z",
    "Version":2
}

Version Changes

Addition of the Version property