{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/kraken/refs/heads/main/json-schema/kraken-subscribe-book-request-schema.json",
  "title": "SubscribeBookRequest",
  "description": "SubscribeBookRequest schema from Kraken Spot WebSocket API v2",
  "allOf": [
    {
      "type": "object",
      "required": [
        "method",
        "params"
      ],
      "properties": {
        "method": {
          "type": "string",
          "enum": [
            "subscribe"
          ],
          "example": "subscribe"
        },
        "req_id": {
          "type": "integer",
          "description": "Optional client-originated request identifier echoed in the response.",
          "example": "OQCLML-BW3P3-BUCMWZ"
        }
      }
    },
    {
      "type": "object",
      "properties": {
        "params": {
          "type": "object",
          "required": [
            "channel",
            "symbol"
          ],
          "properties": {
            "channel": {
              "type": "string",
              "enum": [
                "book"
              ],
              "example": "book"
            },
            "symbol": {
              "type": "array",
              "items": {
                "type": "string"
              },
              "example": "PI_XBTUSD"
            },
            "depth": {
              "type": "integer",
              "enum": [
                10,
                25,
                100,
                500,
                1000
              ],
              "default": 10,
              "example": 10
            },
            "snapshot": {
              "type": "boolean",
              "default": true,
              "example": true
            }
          },
          "example": {}
        }
      }
    }
  ]
}