{
  "$schema": "https://json-schema.org/draft/2020-12",
  "$id": "https://raw.githubusercontent.com/api-evangelist/footprint/main/json-schema/query.json",
  "title": "Footprint Analytics Query Request",
  "description": "Schema for executing a SQL query against the Footprint Analytics blockchain dataset via the Data API.",
  "type": "object",
  "required": ["query"],
  "properties": {
    "query": {
      "type": "string",
      "description": "SQL query string using Trino/Presto-compatible syntax. Queries run against tables covering NFT, DeFi, GameFi, token, wallet, and raw chain data across 30+ blockchains.",
      "minLength": 1,
      "examples": [
        "SELECT collection_name, floor_price FROM nft_collection_daily_stats WHERE chain = 'ethereum' LIMIT 20",
        "SELECT protocol_name, tvl_usd FROM defi_protocol_daily_stats ORDER BY tvl_usd DESC LIMIT 10"
      ]
    },
    "parameters": {
      "type": "object",
      "description": "Named parameters to bind into the query. Prevents SQL injection and enables parameterized queries.",
      "additionalProperties": {
        "oneOf": [
          { "type": "string" },
          { "type": "number" },
          { "type": "boolean" }
        ]
      }
    }
  },
  "additionalProperties": false
}