curl --location --request POST 'https://pay-gateway1.uat.useepay.com/applepay/merchantSession' \
--header 'Content-Type: application/json' \
--data-raw '{
    "carrierId": "string",
    "amount": "string",
    "currencyCode": "string",
    "initiativeContext": "string",
    "merchantNo": "string",
    "signType": "string",
    "sign": "string",
    "applepayMerchantIdentifier": "string"
}'{}