curl --location --request GET 'https://sandbox-gateway.pingpongx.com/v2/fx/trade/market/symbol/price?base_currency=USD&price_currency=CNH&value_date=2023-05-18' \ --header 'access_token;'
{ "code": 0, "data": { "base_currency": "USD", "offer": 7.24931, "bid": 7.19035, "price_currency": "CNH" }, "message": "ok" }