Hi guys a quick question, how is idempotency normally ensured for order placement? APIs such as Stripe offer idempotency keys which can be included in the header to ensure the same operation is not executed twice. I am trying to find a similar mechanism for crypto exchanges and not having any luck.
I thought that ClOrdId could serve as such a key but e.g. Okex doesn't give a shit if you have just executed an order with the exact same ClOrdId and places another order when ClOrdId is repeated