curl --request POST \
  --url https://api.preprod.alignet.io/refund \
  --header 'ALG-API-VERSION: <alg-api-version>' \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "merchant_code": "41bb301e-3c37-4332-accb-ed5ec19081e4",
  "operations": [
    {
      "type": "TOTAL",
      "merchant_operation_number": "239766",
      "transaction_id": null,
      "refund_amount": "1050",
      "additional_fields": {
        "canal": "WEB",
        "reason": "cliente no reconocio el consumo",
        "description": "solicitud por desconocimiento"
      }
    }
  ]
}
'

import requests

url = "https://api.preprod.alignet.io/refund"

payload = {
    "merchant_code": "41bb301e-3c37-4332-accb-ed5ec19081e4",
    "operations": [
        {
            "type": "TOTAL",
            "merchant_operation_number": "239766",
            "transaction_id": None,
            "refund_amount": "1050",
            "additional_fields": {
                "canal": "WEB",
                "reason": "cliente no reconocio el consumo",
                "description": "solicitud por desconocimiento"
            }
        }
    ]
}
headers = {
    "Authorization": "<authorization>",
    "ALG-API-VERSION": "<alg-api-version>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    Authorization: '<authorization>',
    'ALG-API-VERSION': '<alg-api-version>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    merchant_code: '41bb301e-3c37-4332-accb-ed5ec19081e4',
    operations: [
      {
        type: 'TOTAL',
        merchant_operation_number: '239766',
        transaction_id: null,
        refund_amount: '1050',
        additional_fields: {
          canal: 'WEB',
          reason: 'cliente no reconocio el consumo',
          description: 'solicitud por desconocimiento'
        }
      }
    ]
  })
};

fetch('https://api.preprod.alignet.io/refund', 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.preprod.alignet.io/refund",
  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([
    'merchant_code' => '41bb301e-3c37-4332-accb-ed5ec19081e4',
    'operations' => [
        [
                'type' => 'TOTAL',
                'merchant_operation_number' => '239766',
                'transaction_id' => null,
                'refund_amount' => '1050',
                'additional_fields' => [
                                'canal' => 'WEB',
                                'reason' => 'cliente no reconocio el consumo',
                                'description' => 'solicitud por desconocimiento'
                ]
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "ALG-API-VERSION: <alg-api-version>",
    "Authorization: <authorization>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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.preprod.alignet.io/refund"

	payload := strings.NewReader("{\n  \"merchant_code\": \"41bb301e-3c37-4332-accb-ed5ec19081e4\",\n  \"operations\": [\n    {\n      \"type\": \"TOTAL\",\n      \"merchant_operation_number\": \"239766\",\n      \"transaction_id\": null,\n      \"refund_amount\": \"1050\",\n      \"additional_fields\": {\n        \"canal\": \"WEB\",\n        \"reason\": \"cliente no reconocio el consumo\",\n        \"description\": \"solicitud por desconocimiento\"\n      }\n    }\n  ]\n}")

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

	req.Header.Add("Authorization", "<authorization>")
	req.Header.Add("ALG-API-VERSION", "<alg-api-version>")
	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.preprod.alignet.io/refund")
  .header("Authorization", "<authorization>")
  .header("ALG-API-VERSION", "<alg-api-version>")
  .header("Content-Type", "application/json")
  .body("{\n  \"merchant_code\": \"41bb301e-3c37-4332-accb-ed5ec19081e4\",\n  \"operations\": [\n    {\n      \"type\": \"TOTAL\",\n      \"merchant_operation_number\": \"239766\",\n      \"transaction_id\": null,\n      \"refund_amount\": \"1050\",\n      \"additional_fields\": {\n        \"canal\": \"WEB\",\n        \"reason\": \"cliente no reconocio el consumo\",\n        \"description\": \"solicitud por desconocimiento\"\n      }\n    }\n  ]\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.preprod.alignet.io/refund")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = '<authorization>'
request["ALG-API-VERSION"] = '<alg-api-version>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"merchant_code\": \"41bb301e-3c37-4332-accb-ed5ec19081e4\",\n  \"operations\": [\n    {\n      \"type\": \"TOTAL\",\n      \"merchant_operation_number\": \"239766\",\n      \"transaction_id\": null,\n      \"refund_amount\": \"1050\",\n      \"additional_fields\": {\n        \"canal\": \"WEB\",\n        \"reason\": \"cliente no reconocio el consumo\",\n        \"description\": \"solicitud por desconocimiento\"\n      }\n    }\n  ]\n}"

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

{
  "success": "true",
  "action": "refund",
  "merchant_code": "41bb301e-3c37-4332-accb-ed5ec19081e4",
  "operations": [
    {
      "refund_id": "922178aa-ce4c-4c5f-8190-82fa7e009425",
      "state": "REGISTERED",
      "refund_reason": "Solicitud recibida y validada",
      "type": "TOTAL",
      "merchant_operation_number": "239766",
      "transaction_id": "bko66gpi8czns4tcde93q96vd",
      "refund_amount": "1050",
      "transaction_amount": "1050",
      "currency": "604",
      "payment_method": {
        "name": "CARD",
        "brand": "VISA",
        "masked_pan": "447411******2240"
      },
      "additional_fields": {
        "canal": "WEB",
        "reason": "cliente no reconocio el consumo",
        "description": "solicitud por desconocimiento"
      },
      "lifecycle": [
        {
          "state": "REGISTERED",
          "date": {
            "utc_time": "2025-05-26T06:06:45",
            "unix_time": 1748239605
          }
        }
      ]
    }
  ],
  "meta": {
    "status": {
      "code": "00",
      "message_ilgn": [
        {
          "locale": "es_PE",
          "value": "Se proceso correctamente la peticion"
        }
      ]
    }
  }
}