SUBSCRIBE Orderbook Throttled

UPDATE TIME

100ms OR 500ms

Request

Field	Type	Required	Description
op	string	Yes	Operation code allowed values: subscribe unsubscribe
data	array of strings	Yes	Channel name in the format orderbook-100ms:SYMBOL. Example: orderbook-100ms:ETH-31MAR23-1350-C

Example

{
	"op":"subscribe", 
	"data": ["orderbook-100ms:ETH-31MAR23-1350-C"]
}

{
	"op":"subscribe", 
	"data": ["orderbook-500ms:ETH-31MAR23-1350-C"]
}

Response

Field	Type	Required	Description
channel	string	Yes	Channel name in the format orderbook-100ms:INSTRUMENT_NAME. Example: orderbook-100ms:ETH-31MAR23-1350-C
data.type	string	Yes	Type of orderbook message. Allowed values: snapshot update
data.instrument_id	string	Yes	Instrument ID number. Example: 12
data.instrument_name	string	Yes	Instrument symbol. Example: ETH-24DEC22-1250-C
data.instrument_type	string	Yes	Type of instrument. Allowed values: OPTION PERPETUAL
data.bids	array of arrays	Yes	Array of 3 elements - price in USD, contract amount and order IV. Example: [["1", "10", "0.75"]]
data.asks	array of arrays	Yes	Array of 3 elements - price in USD, contract amount and order IV. Example: [["1", "10", "0.85"]]
data.last_updated	string	Yes	Last updated timestamp in UNIX timestamp in nanoseconds. Example: 1680249600000000000
data.checksum	string	Yes	Payload checksum. Example: 1321749405