curl --request POST \
  --url https://sandbox-api.payfonte.com/payments/v1/payments/direct-charge \
  --header 'Content-Type: application/json' \
  --header 'client-id: <api-key>' \
  --header 'client-secret: <api-key>' \
  --data '{
  "provider": "airtel-smartcash-ng",
  "amount": 100000,
  "reference": "<string>",
  "customerInput": {
    "phoneNumber": "2347012345678"
  },
  "webhook": "https://example.com/webhook"
}'

{
  "data": {
    "reference": "<string>",
    "status": "<string>",
    "sessionId": "<string>",
    "amount": 100000
  }
}