x-api-key: ********************curl --location --request POST 'https://online-banking.originalaccounts.com/customers//plaid_link_requests' \
--header 'Idempotency-Key;' \
--header 'x-api-key: <api-key>'{
"link_token": "string",
"link_token_expires_at": "2019-08-24T14:15:22.123Z",
"callback_url": "string"
}