curl --request POST \
  --url 'https://prod-api.stateset.cloud.stateset.app/api/v1/payments/refund' \
  --header 'Authorization: Bearer YOUR_API_KEY' \
  --header 'Content-Type: application/json' \
  --data '{
  "amount": "50.00",
  "payment_id": "770e8400-e29b-41d4-a716-446655440001",
  "reason": "Customer requested partial refund - item damaged"
}'

{
  "data": {
    "amount": "49.00",
    "created_at": "2026-08-31T14:22:05Z",
    "currency": "USD",
    "description": "Two-person tent, green — replacement for damaged pole set.",
    "id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "order_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "payment_method": "string",
    "payment_method_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "processed_at": "2026-08-31T14:22:05Z",
    "status": "pending"
  },
  "errors": [
    "string"
  ],
  "message": "Two-person tent, green — replacement for damaged pole set.",
  "meta": {
    "request_id": "3fa85f64-5717-4562-b3fc-2c963f66afa6",
    "timestamp": "2026-08-31T14:22:05Z"
  },
  "success": true
}