curl --request POST \
  --url https://api-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel \
  --header 'Content-Type: application/json' \
  --header 'X-Idempotency-Key: <api-key>' \
  --header 'private-secret-key: <api-key>' \
  --header 'public-api-key: <api-key>' \
  --data '
{
  "description": "Duplicate",
  "reason": "REQUESTED_BY_CUSTOMER",
  "merchant_reference": "AAB01-432245"
}
'

import requests

url = "https://api-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel"

payload = {
    "description": "Duplicate",
    "reason": "REQUESTED_BY_CUSTOMER",
    "merchant_reference": "AAB01-432245"
}
headers = {
    "public-api-key": "<api-key>",
    "private-secret-key": "<api-key>",
    "X-Idempotency-Key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'public-api-key': '<api-key>',
    'private-secret-key': '<api-key>',
    'X-Idempotency-Key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    description: 'Duplicate',
    reason: 'REQUESTED_BY_CUSTOMER',
    merchant_reference: 'AAB01-432245'
  })
};

fetch('https://api-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel', 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-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel",
  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([
    'description' => 'Duplicate',
    'reason' => 'REQUESTED_BY_CUSTOMER',
    'merchant_reference' => 'AAB01-432245'
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Idempotency-Key: <api-key>",
    "private-secret-key: <api-key>",
    "public-api-key: <api-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-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel"

	payload := strings.NewReader("{\n  \"description\": \"Duplicate\",\n  \"reason\": \"REQUESTED_BY_CUSTOMER\",\n  \"merchant_reference\": \"AAB01-432245\"\n}")

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

	req.Header.Add("public-api-key", "<api-key>")
	req.Header.Add("private-secret-key", "<api-key>")
	req.Header.Add("X-Idempotency-Key", "<api-key>")
	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-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel")
  .header("public-api-key", "<api-key>")
  .header("private-secret-key", "<api-key>")
  .header("X-Idempotency-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"description\": \"Duplicate\",\n  \"reason\": \"REQUESTED_BY_CUSTOMER\",\n  \"merchant_reference\": \"AAB01-432245\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.y.uno/v1/payments/{payment_id}/transactions/{transaction_id}/cancel")

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

request = Net::HTTP::Post.new(url)
request["public-api-key"] = '<api-key>'
request["private-secret-key"] = '<api-key>'
request["X-Idempotency-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"description\": \"Duplicate\",\n  \"reason\": \"REQUESTED_BY_CUSTOMER\",\n  \"merchant_reference\": \"AAB01-432245\"\n}"

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

{
  "id": "438bea6c-9061-4416-b824-469c3c05868d",
  "type": "CANCEL",
  "status": "SUCCEEDED",
  "category": "CARD",
  "amount": {
    "captured": 0,
    "currency": "USD",
    "currency_conversion": null,
    "refunded": 0,
    "value": 30000
  },
  "merchant_reference": "",
  "created_at": "2024-06-06T14:03:08.384014Z",
  "updated_at": "2024-06-06T14:03:08.453617Z",
  "provider_data": {
    "id": "YUNO_TEST_PAYMENT_GW",
    "transaction_id": "",
    "account_id": "",
    "status": "SUCCEEDED",
    "sub_status": "",
    "status_detail": "SUCCEEDED",
    "response_message": null,
    "response_code": "SUCCEEDED",
    "raw_response": {
      "message": "provider response"
    },
    "third_party_transaction_id": null,
    "third_party_account_id": null,
    "iso8583_response_code": "00",
    "iso8583_response_message": "Approved or completed successfully"
  },
  "response_code": "SUCCEEDED",
  "response_message": "Transaction successful",
  "payment": {
    "id": "2d6f75c1-c4bc-4d2d-80ec-0af4d12c85da",
    "account_id": "",
    "description": "Test",
    "country": "US",
    "status": "CANCELED",
    "sub_status": "CANCELED",
    "merchant_order_id": "0000023",
    "created_at": "2024-06-06T14:01:34.286228Z",
    "updated_at": "2024-06-06T14:03:08.484781Z",
    "amount": {
      "captured": 0,
      "currency": "USD",
      "currency_conversion": null,
      "refunded": 0,
      "value": 30000
    },
    "split_marketplace": []
  },
  "customer_payer": null,
  "simplified_mode": false,
  "receipt": false,
  "receipt_url": null,
  "receipt_language": null
}

{
  "code": "INVALID_REQUEST",
  "messages": [
    "Invalid request"
  ]
}

{
  "code": "INVALID_CREDENTIALS",
  "messages": [
    "Invalid credentials"
  ]
}

{
  "code": "AUTHORIZATION_REQUIRED",
  "messages": [
    "The merchant has no authorization to use this API."
  ]
}