{
  "$id": "https://schemas.ruter.no/adt/ota/api/v3.0/sensors/odometer/odometer.json",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Odometer",
  "type": "object",
  "required": [
    "traceId",
    "eventTimestamp",
    "distance",
    "messageNumber"
  ],
  "description": "Odometer data",
  "additionalProperties": true,
  "properties": {
    "traceId": {
      "$id": "#/properties/traceId",
      "$comment": "Added in version 2.5",
      "type": "string",
      "description": "A unique identifier to be able to trace this message. Also used to detect duplicate messages received."
    },
    "eventTimestamp": {
      "$id": "#/properties/eventTimestamp",
      "type": "string",
      "description": "As specified in the [ADT documentation.](https://adt.transhub.io)"
    },
    "distance": {
      "$id": "#/properties/distance",
      "type": "integer",
      "description": "Describes absolute odometer value in metres."
    },
    "messageNumber": {
      "$id": "#/properties/messageNumber",
      "$comment": "Added in version 2.1. Mandatory since 3.0",
      "type": "integer",
      "description": "Sequence number, increased by one for each new message. Used to validate consistency in the data stream."
    }
  }
}