Get spread order book
Retrieve the order book of a spread. This is a public endpoint that does not require authentication.
Query parameters
sprdId
Spread ID, e.g. BTC-USDT_BTC-USDT-SWAP.
sz
Order book depth per side. Maximum is 400; the default is 5.
Response
Successful response
code
Result code. 0 means success; any other value is an error code.
msg
Error message. Empty on success.
data

