{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Contracts For Symbol (request)",
  "description": "For a given symbol, get the list of currently available contracts, and the latest barrier and duration limits for each contract.",
  "type": "object",
  "auth_required": 0,
  "additionalProperties": false,
  "required": ["contracts_for"],
  "properties": {
    "contracts_for": {
      "description": "The short symbol name (obtained from `active_symbols` call).",
      "type": "string",
      "pattern": "^\\w{2,30}$"
    },
    "passthrough": {
      "description": "[Optional] Used to pass data through the websocket, which may be retrieved via the `echo_req` output field.",
      "type": "object"
    },
    "req_id": {
      "description": "[Optional] Used to map request to response.",
      "type": "integer"
    }
  }
}