curl --request POST \
  --url https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "cancelledReasonCode": "Requested by customer",
  "cancelledReasonDescription": "Customer no longer needs the item"
}'

import requests

url = "https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel"
payload = {
    "cancelledReasonCode": "Requested by customer",
    "cancelledReasonDescription": "Customer no longer needs the item"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

const response = await fetch(
  "https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel",
  {
    method: "POST",
    headers: {
      Authorization: "Bearer <token>",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      cancelledReasonCode: "Requested by customer",
      cancelledReasonDescription: "Customer no longer needs the item",
    }),
  }
);

const data = await response.json();
console.log(data);

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_CUSTOMREQUEST => "POST",
  CURLOPT_POSTFIELDS => json_encode([
    "cancelledReasonCode" => "Requested by customer",
    "cancelledReasonDescription" => "Customer no longer needs the item"
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
curl_close($curl);
echo $response;

package main

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

func main() {
  url := "https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel"
  payload := strings.NewReader(`{
    "cancelledReasonCode": "Requested by customer",
    "cancelledReasonDescription": "Customer no longer needs the item"
  }`)

  req, _ := http.NewRequest("POST", url, payload)
  req.Header.Add("Authorization", "Bearer <token>")
  req.Header.Add("Content-Type", "application/json")

  res, _ := http.DefaultClient.Do(req)
  defer res.Body.Close()
  body, _ := ioutil.ReadAll(res.Body)
  fmt.Println(string(body))
}

HttpResponse<String> response = Unirest.post("https://api.atoa.me/api/payments/card/payment-request/{paymentRequestId}/cancel")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\"cancelledReasonCode\":\"Requested by customer\",\"cancelledReasonDescription\":\"Customer no longer needs the item\"}")
  .asString();

{
  "success": true,
  "message": "Payment cancelled successfully"
}

{
  "name": "BAD_REQUEST",
  "message": "Cannot cancel an AUTO_CAPTURE or already captured payment",
  "status": 400,
  "errors": []
}

{
  "name": "NOT_FOUND",
  "message": "Payment not found",
  "status": 404,
  "errors": []
}