bbo

{
  "id": "clientID5",
  "event": "subscribe",
  "success": true,
  "ts": 1609924478533
}

{
  "topic": "PERP_WOO_USDC@bbo",
  "ts": 1614152296945,
  "data": {
    "symbol": "PERP_WOO_USDC",
    "ask": 0.30939,
    "askSize": 4508.53,
    "bid": 0.30776,
    "bidSize": 25246.14
  }
}

{
  "id": "clientID5",
  "event": "subscribe",
  "success": true,
  "ts": 1609924478533
}

{
  "topic": "PERP_WOO_USDC@bbo",
  "ts": 1614152296945,
  "data": {
    "symbol": "PERP_WOO_USDC",
    "ask": 0.30939,
    "askSize": 4508.53,
    "bid": 0.30776,
    "bidSize": 25246.14
  }
}

Push interval: 10ms

{
  "id": "clientID5",
  "topic": "PERP_WOO_USDC@bbo",
  "event": "subscribe"
}

Parameters

Name	Type	Required	Description
id	string	Y	id generate by client
event	string	Y	`subscribe`/`unsubscribe`
topic	string	Y	`{symbol}@bbo`

{
  "id": "clientID5",
  "event": "subscribe",
  "success": true,
  "ts": 1609924478533
}

{
  "topic": "PERP_WOO_USDC@bbo",
  "ts": 1614152296945,
  "data": {
    "symbol": "PERP_WOO_USDC",
    "ask": 0.30939,
    "askSize": 4508.53,
    "bid": 0.30776,
    "bidSize": 25246.14
  }
}

Orderly Predict

For a Predict round symbol (<binary_symbol>), the push additionally includes down_bid and down_ask. bid and ask keep their existing UP-side semantics. down_bid = 1 - ask and down_ask = 1 - bid.

Subscribed Message

{
  "topic": "<binary_symbol>@bbo",
  "ts": 1614152296945,
  "data": {
    "symbol": "<binary_symbol>",
    "ask": 0.56,
    "askSize": 120,
    "bid": 0.55,
    "bidSize": 100,
    "down_bid": 0.44,
    "down_ask": 0.45
  }
}

Non-Predict symbols do not return down_bid or down_ask. See Market Data for how the UP and DOWN sides relate.

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