curl --request POST \
  --url https://api-payment.lab4pay.com/v1/pay-connect/transactions/generate/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Pay-Connect-Integrator-Id: <x-pay-connect-integrator-id>' \
  --data '
{
  "amount": 123,
  "client_transaction_id": "<string>",
  "payment_method": "<string>"
}
'

{
  "transaction_id": "<string>"
}