Get contracts open interest and volume
Retrieve the total open interest and trading volume of futures and perpetual swap contracts for a currency over the requested time window.
Query parameters
ccy
Currency, e.g. BTC.
begin
Begin time, Unix timestamp in milliseconds, e.g. 1597026383085.
end
End time, Unix timestamp in milliseconds, e.g. 1597026683085.
period
Bar size, the default is 5m.
Allowed values:
Response
Successful response
code
Result code. 0 means success; any other value is an error code.
msg
Error message. Empty on success.
data