HWB Standard

MQTT topic and payload specifications for hardware devices and sales clients.

Specification: barcode

Passenger want to use the service and presents their barcode containing a token referencing an account containing possible travel rights.

Barcode should be transmitted as base64 encoded URL string without padding.

Topic: validators/barcode
Direction: Publish (Inbound to client)
JSON Schema: barcode.schema.json
MQTT QoS: 1 (at least once)
Trigger: Once every time a passenger presents a barcode to the barcode reader.

Examples

{
  "traceId": "543070fe-ef32-11ed-a05b-0242ac120003",
  "deviceId": "flv202400004",
  "eventTimestamp": "2023-04-22T10:28:37.337Z",
  "barcode": "CtYBCtMBCtN...VDRFNBKgsIpdicoAYQ4NeUdzAB"
}