curl --location --request POST '/gateway/base/biz' \
--header 'method: pay' \
--header 'signType: SHA512' \
--header 'serviceName: api.pay' \
--header 'mchId: 1416010331032883200' \
--header 'timestamp: 1631671670' \
--header 'sign: 32554324534545432543' \
--header 'Content-Type: application/json' \
--data-raw '{
"amount": "1000",
"callbackUrl": "http://127.0.0.1:8082/india-merchant/core/callback",
"currency": "TRY",
"email": "username@liquido.com",
"firstname": "username",
"lastname": "Lee",
"mchOrderId": "291283912831210",
"phone": "3991111111",
"productinfo": "your pro simple desc",
"paymentType": "NET_BANKING"
}'