TriggerLevelsHistoryItem Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "TriggerLevelsHistoryItem",
  "description": "One historical trigger-levels snapshot (15-minute cadence). levels is omitted when summary=true.",
  "type": "object",
  "required": [
    "mid_price",
    "snapshot_ts",
    "total_ask_size",
    "total_bid_size"
  ],
  "properties": {
    "levels": {
      "type": "array",
      "items": {
        "description": "Aggregated currently open trigger orders at one rounded price bucket.",
        "type": "object",
        "required": [
          "ask_count",
          "ask_size",
          "bid_count",
          "bid_size",
          "price_bucket"
        ],
        "properties": {
          "ask_count": {
            "description": "Number of ask-side trigger orders in the bucket.",
            "type": "integer",
            "format": "int64",
            "example": 9
          },
          "ask_size": {
            "description": "Ask-side trigger size in the bucket.",
            "type": "number",
            "example": 18.75
          },
          "bid_count": {
            "description": "Number of bid-side trigger orders in the bucket.",
            "type": "integer",
            "format": "int64",
            "example": 12
          },
          "bid_size": {
            "description": "Bid-side trigger size in the bucket.",
            "type": "number",
            "example": 31.25
          },
          "price_bucket": {
            "description": "Rounded trigger price bucket.",
            "type": "number",
            "example": 64200
          }
        }
      }
    },
    "mid_price": {
      "type": "number"
    },
    "snapshot_ts": {
      "type": "string"
    },
    "total_ask_size": {
      "type": "number"
    },
    "total_bid_size": {
      "type": "number"
    }
  }
}