{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "#/components/schemas/PriceBook",
  "title": "PriceBook",
  "type": "object",
  "description": "Order book price levels",
  "properties": {
    "product_id": {
      "type": "string",
      "description": "Product identifier"
    },
    "bids": {
      "type": "array",
      "description": "Bid price levels",
      "items": {
        "type": "object",
        "properties": {
          "price": {
            "type": "string",
            "description": "Bid price"
          },
          "size": {
            "type": "string",
            "description": "Size at this price level"
          }
        }
      }
    },
    "asks": {
      "type": "array",
      "description": "Ask price levels",
      "items": {
        "type": "object",
        "properties": {
          "price": {
            "type": "string",
            "description": "Ask price"
          },
          "size": {
            "type": "string",
            "description": "Size at this price level"
          }
        }
      }
    },
    "time": {
      "type": "string",
      "format": "date-time",
      "description": "Timestamp of the price book"
    }
  }
}