{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "title": "Price Proposal (request)",
  "description": "Gets latest price for a specific contract.",
  "type": "object",
  "auth_required": 0,
  "additionalProperties": false,
  "required": ["proposal", "contract_type", "currency", "underlying_symbol"],
  "properties": {
    "proposal": {
      "description": "Must be `1`",
      "type": "integer",
      "enum": [1]
    },
    "amount": {
      "description": "[Optional] Proposed contract payout or stake.",
      "type": "number",
      "minimum": 0
    },
    "barrier": {
      "description": "[Optional] Barrier for the contract (or last digit prediction for digit contracts). Contracts less than 24 hours in duration would need a relative barrier (barriers which need +/-), where entry spot would be adjusted accordingly with that amount to define a barrier, except for Synthetic Indices as they support both relative and absolute barriers. Not needed for lookbacks.",
      "type": "string",
      "pattern": "^(?=.{1,20}$)[+-]?[0-9]+\\.?[0-9]*$"
    },
    "barrier2": {
      "description": "[Optional] Low barrier for the contract (for contracts with two barriers). Contracts less than 24 hours in duration would need a relative barrier (barriers which need +/-), where entry spot would be adjusted accordingly with that amount to define a barrier, except for Synthetic Indices as they support both relative and absolute barriers. Not needed for lookbacks.",
      "type": "string",
      "pattern": "^(?=.{1,20}$)[+-]?[0-9]+\\.?[0-9]*$"
    },
    "basis": {
      "description": "[Optional] Indicates type of the `amount`.",
      "type": "string",
      "enum": ["payout", "stake"]
    },
    "cancellation": {
      "description": "Cancellation duration option (only for `MULTUP` and `MULTDOWN` contracts).",
      "type": "string",
      "pattern": "^\\w+$"
    },
    "contract_type": {
      "description": "The proposed contract type",
      "type": "string",
      "enum": [
        "HIGHER",
        "LOWER",
        "MULTUP",
        "MULTDOWN",
        "UPORDOWN",
        "EXPIRYRANGE",
        "ONETOUCH",
        "CALLE",
        "ASIAND",
        "EXPIRYRANGEE",
        "DIGITDIFF",
        "DIGITMATCH",
        "DIGITOVER",
        "PUTE",
        "DIGITUNDER",
        "NOTOUCH",
        "CALL",
        "RANGE",
        "DIGITODD",
        "PUT",
        "ASIANU",
        "EXPIRYMISSE",
        "EXPIRYMISS",
        "DIGITEVEN",
        "TICKHIGH",
        "TICKLOW",
        "RESETCALL",
        "RESETPUT",
        "RUNHIGH",
        "RUNLOW",
        "ACCU",
        "VANILLALONGCALL",
        "VANILLALONGPUT",
        "TURBOSLONG",
        "TURBOSSHORT"
      ]
    },
    "currency": {
      "description": "This can only be the account-holder's currency (obtained from `payout_currencies` call).",
      "type": "string",
      "pattern": "^[a-zA-Z0-9]{2,20}$"
    },
    "date_expiry": {
      "description": "[Optional] Epoch value of the expiry time of the contract. Either date_expiry or duration is required.",
      "type": "integer",
      "maximum": 9999999999,
      "minimum": 0
    },
    "duration": {
      "description": "[Optional] Duration quantity. Either date_expiry or duration is required.",
      "type": "integer",
      "maximum": 99999999,
      "minimum": 0
    },
    "duration_unit": {
      "description": "[Optional] Duration unit - `s`: seconds, `m`: minutes, `h`: hours, `d`: days, `t`: ticks.",
      "type": "string",
      "default": "s",
      "enum": ["d", "m", "s", "h", "t"]
    },
    "growth_rate": {
      "description": "[Optional] Growth rate of an accumulator contract.",
      "type": "number"
    },
    "limit_order": {
      "description": "Add an order to close the contract once the order condition is met (only for `MULTUP` and `MULTDOWN` and 'ACCU' contracts). Supported orders: `take_profit`, `stop_loss`.",
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "stop_loss": {
          "description": "Contract will be automatically closed when the value of the contract reaches a specific loss.",
          "type": "number"
        },
        "take_profit": {
          "description": "Contract will be automatically closed when the value of the contract reaches a specific profit.",
          "type": "number"
        }
      }
    },
    "multiplier": {
      "description": "[Optional] The multiplier for non-binary options. E.g. lookbacks.",
      "type": "number",
      "minimum": 0
    },
    "payout_per_point": {
      "description": "[Optional] Clients can provide payout_per_point directly, and the barrier will be calculated based on this payout_per_point value.",
      "type": "number"
    },
    "selected_tick": {
      "description": "[Optional] The tick that is predicted to have the highest/lowest value - for `TICKHIGH` and `TICKLOW` contracts.",
      "type": "integer"
    },
    "subscribe": {
      "description": "[Optional] 1 - to initiate a realtime stream of prices. Note that tick trades (without a user-defined barrier), digit trades and less than 24 hours at-the-money contracts for the following underlying symbols are not streamed: `R_10`, `R_25`, `R_50`, `R_75`, `R_100`, `RDBULL`, `RDBEAR` (this is because their price is constant).",
      "type": "integer",
      "enum": [1]
    },
    "underlying_symbol": {
      "description": "The symbol code (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"
    }
  }
}