Get open interest history
Retrieve the historical contract open interest statistics of futures and perpetual swaps for a specific instrument.
Query parameters
instId
Instrument ID, e.g. BTC-USDT-SWAP. Only applicable to FUTURES and SWAP.
period
Bar size, the default is 5m.
end
Pagination of data to return records earlier than the requested timestamp, Unix timestamp in milliseconds.
begin
Return records newer than the requested timestamp, Unix timestamp in milliseconds.
limit
Number of results per request. The maximum is 100. The default is 100.
Response
Successful response
code
Result code. 0 means success; any other value is an error code.
msg
Error message. Empty on success.
data