curl --request POST \
--url https://whitebit.com/api/v4/collateral-account/position/close \
--header 'Content-Type: application/json' \
--header 'X-TXC-APIKEY: <api-key>' \
--data '
{
"positionId": 123,
"positionSide": "LONG",
"market": "BTC_USDT",
"request": "{{request}}",
"nonce": "{{nonce}}"
}
'