curl --location --request GET 'https://open-test.inflyway.com/openFx/app/fly-exchange/rate/currencyPair' \ --header 'MerchantId: dhgate' \ --header 'Authorization: Bearer {{token}}'
{ "code": 0, "message": "string", "data": [ "USD/CNH", "GBP/EUR", "HKD/USD" ] }