{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/vizion/refs/heads/main/json-schema/vizion-reference-schema.json",
  "title": "Vizion Reference",
  "description": "A Vizion container tracking subscription (reference) with status, metadata, and callback configuration.",
  "type": "object",
  "required": ["id", "container_id", "carrier_scac", "active"],
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique reference identifier assigned by Vizion.",
      "example": "ref_abc123xyz"
    },
    "container_id": {
      "type": "string",
      "description": "The container identification number being tracked.",
      "example": "MSCU1234567"
    },
    "carrier_scac": {
      "type": "string",
      "description": "SCAC carrier code for the tracking subscription.",
      "example": "MSCU",
      "minLength": 2,
      "maxLength": 10
    },
    "active": {
      "type": "boolean",
      "description": "Whether the reference is currently active and receiving tracking updates."
    },
    "callback_url": {
      "type": "string",
      "format": "uri",
      "description": "Webhook endpoint for real-time update delivery.",
      "example": "https://myapp.example.com/webhooks/vizion"
    },
    "last_update_status": {
      "type": "string",
      "description": "Status of the most recent update delivery attempt.",
      "enum": ["success", "pending", "failed", "none"]
    },
    "created_at": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp when the reference was created."
    },
    "updated_at": {
      "type": "string",
      "format": "date-time",
      "description": "ISO 8601 timestamp of the last update."
    }
  },
  "examples": [
    {
      "id": "ref_abc123xyz",
      "container_id": "MSCU1234567",
      "carrier_scac": "MSCU",
      "active": true,
      "callback_url": "https://myapp.example.com/webhooks/vizion",
      "last_update_status": "success",
      "created_at": "2026-04-15T10:30:00Z",
      "updated_at": "2026-05-02T08:15:00Z"
    }
  ]
}