{
	"$schema": "http://json-schema.org/draft-04/schema#",
	"title": "NavUpdate",
	"type": "object",
	"additionalProperties": false,
	"description": "Analytics-v4 .. Navigation update object",
	"properties": {
		"log_context": {
			"$ref": "/resources/schema/analytics/client/v3/LogContext.json",
			"description": "Required Log Context Reference. Required log nav_session_id"
		},
		"event_name": {
			"type": "string",
			"enum": ["NAV_UPDATE"]
		},
		"schema_definition": {
			"type": "string",
			"enum": ["NavUpdate"]
		},
		"navigation_session_id": {
			"type": "string",
			"description": "A unique identifier for current navigation session"
		},
		"route_id": {
			"type": "string",
			"description": "The route_id of the route user is currently traveling on during the navigation session"
		},
		"drg_caused_by": {
			"$ref": "/resources/schema/analytics/client/v3/DetourCauseType.json",
      		"description": "If DRG happened during the navigation session the reason for it"
		}
	},
	"required": [
		"log_context",
		"event_name",
		"schema_definition",
		"navigation_session_id",
		"route_id"
	]
}