using Gr4vy;
using Gr4vy.Models.Components;

var sdk = new Gr4vySDK(
    id: "example",
    server: SDKConfig.Server.Sandbox,
    bearerAuthSource: Auth.WithToken(privateKey),
    merchantAccountId: "default"
);

var res = await sdk.Transactions.Refunds.All.CreateAsync(transactionId: "7099948d-7286-47e4-aad8-b68f7eb44591");

// handle response

{
  "items": [
    {
      "type": "refund",
      "id": "6a1d4e46-14ed-4fe1-a45f-eff4e025d211",
      "transaction_id": "7099948d-7286-47e4-aad8-b68f7eb44591",
      "payment_service_refund_id": "refund_xYqd43gySMtori",
      "status": "succeeded",
      "currency": "EUR",
      "amount": 1299,
      "reason": "Refund due to user request.",
      "target_type": "payment-method",
      "target_id": "07e70d14-a0c0-4ff5-bd4a-509959af0e4d",
      "reconciliation_id": "7jZXl4gBUNl0CnaLEnfXbt",
      "external_identifier": "refund-12345",
      "transaction_reconciliation_id": "aLEnfXbt7jZXl4gBUNl0Cn",
      "transaction_external_identifier": "transaction-12345",
      "created_at": "2013-07-16T19:23:00.000+00:00",
      "updated_at": "2013-07-16T19:23:00.000+00:00",
      "creator": {
        "email_address": "jhon.doe@gr4vy.com",
        "id": "07e70d14-a0c0-4ff5-bd4a-509959af0e4d",
        "name": "Jhon Doe"
      },
      "error_code": "service_error",
      "raw_response_code": "E104",
      "raw_response_description": "Missing redirect URL"
    }
  ],
  "limit": 20,
  "next_cursor": "ZXhhbXBsZTE",
  "previous_cursor": "Xkjss7asS"
}