curl --request POST \
  --url https://api.example.com/dict-hub/v1/dict/refunds \
  --header 'Authorization: Bearer demo-access-token' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: pix-demo-20260903-000001' \
  --header 'X-Correlation-Id: 019606a1-3b4c-7d8e-9f01-234567890abc' \
  --data '{
  "refundAmount": "1000.00",
  "refundDetails": "refund due to operational failure",
  "refundReason": "OPERATIONAL_FLAW",
  "transactionId": "E12345678202601011200abcdef01234"
}'

import requests

url = "https://api.example.com/dict-hub/v1/dict/refunds"

payload = {
    "refundAmount": "1000.00",
    "refundDetails": "refund due to operational failure",
    "refundReason": "OPERATIONAL_FLAW",
    "transactionId": "E12345678202601011200abcdef01234"
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    refundAmount: '1000.00',
    refundDetails: 'refund due to operational failure',
    refundReason: 'OPERATIONAL_FLAW',
    transactionId: 'E12345678202601011200abcdef01234'
  })
};

fetch('https://api.example.com/dict-hub/v1/dict/refunds', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.example.com/dict-hub/v1/dict/refunds",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    'refundAmount' => '1000.00',
    'refundDetails' => 'refund due to operational failure',
    'refundReason' => 'OPERATIONAL_FLAW',
    'transactionId' => 'E12345678202601011200abcdef01234'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://api.example.com/dict-hub/v1/dict/refunds"

	payload := strings.NewReader("{\n  \"refundAmount\": \"1000.00\",\n  \"refundDetails\": \"refund due to operational failure\",\n  \"refundReason\": \"OPERATIONAL_FLAW\",\n  \"transactionId\": \"E12345678202601011200abcdef01234\"\n}")

	req, _ := http.NewRequest("POST", url, payload)

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	req.Header.Add("Authorization", "Bearer <token>")
	req.Header.Add("Content-Type", "application/json")

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.post("https://api.example.com/dict-hub/v1/dict/refunds")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"refundAmount\": \"1000.00\",\n  \"refundDetails\": \"refund due to operational failure\",\n  \"refundReason\": \"OPERATIONAL_FLAW\",\n  \"transactionId\": \"E12345678202601011200abcdef01234\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.example.com/dict-hub/v1/dict/refunds")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"refundAmount\": \"1000.00\",\n  \"refundDetails\": \"refund due to operational failure\",\n  \"refundReason\": \"OPERATIONAL_FLAW\",\n  \"transactionId\": \"E12345678202601011200abcdef01234\"\n}"

response = http.request(request)
puts response.read_body

{
  "alreadySettledAmount": "100.50",
  "analysisDetails": "analysisdetails-example",
  "analysisResult": "TOTALLY_ACCEPTED",
  "bacenRefundId": "3d48532f-1a2b-4422-81c3-b7dc852e262b",
  "contestedParticipant": "87654321",
  "correlationId": "9f3a8b7e2c1d4e5a8b6f1a2b3c4d5e6f",
  "creationTime": "2026-01-01T12:00:00Z",
  "effectiveRefundedAmount": "100.50",
  "fundsRecoveryId": "019606a1-3b4c-7d8e-9f01-234567890abc",
  "id": "018f8c1d-1234-7abc-9def-000000000001",
  "infractionReportId": "019606a1-3b4c-7d8e-9f01-234567890abc",
  "lastModified": "2026-01-01T12:30:00Z",
  "monitorAccount": false,
  "refundAccount": {
    "accountNumber": "123456",
    "accountType": "CACC",
    "branch": "0001",
    "participant": "99999011",
    "taxIdNumber": "12345678909"
  },
  "refundAmount": "1000.00",
  "refundDetails": "refund due to operational failure",
  "refundReason": "OPERATIONAL_FLAW",
  "refundRejectionReason": "NO_BALANCE",
  "refundTransactionId": "019606a1-3b4c-7d8e-9f01-234567890abc",
  "requestingParticipant": "12345678",
  "settleReason": "settlereason-example",
  "settleType": "REFUND",
  "status": "OPEN",
  "surplusAmount": "100.50",
  "transactionId": "E12345678202601011200abcdef01234"
}

{
  "code": "PIX-0030",
  "title": "Idempotency Key Required",
  "message": "O cabeçalho Idempotency-Key é obrigatório nesta operação e deve respeitar o tamanho aceito."
}

{
  "code": "PIX-0031",
  "title": "Idempotency Key Conflict",
  "message": "A Idempotency-Key já foi usada com uma requisição diferente."
}

{
  "code": "PIX-0032",
  "title": "Idempotency Unavailable",
  "message": "A requisição não foi processada porque o armazenamento de idempotência está indisponível. Tente novamente."
}

{
  "code": "ERR-0001",
  "detail": "Property foo is required but is missing.",
  "errors": [
    {
      "location": "<string>",
      "message": "<string>",
      "value": "<unknown>"
    }
  ],
  "instance": "https://example.com/error-log/abc123",
  "status": 400,
  "title": "Bad Request",
  "type": "https://example.com/errors/example",
  "upstream": {
    "code": "E4001",
    "message": "account not found at provider"
  }
}