curl --request GET \
  --url https://apidjonanko.tech/web-merchant/webhooks/failed \
  --header 'authenticationtoken: <api-key>'

const options = {method: 'GET', headers: {authenticationtoken: '<api-key>'}};

fetch('https://apidjonanko.tech/web-merchant/webhooks/failed', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://apidjonanko.tech/web-merchant/webhooks/failed"

headers = {"authenticationtoken": "<api-key>"}

response = requests.get(url, headers=headers)

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://apidjonanko.tech/web-merchant/webhooks/failed",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => [
    "authenticationtoken: <api-key>"
  ],
]);

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

curl_close($curl);

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

{
  "total": 42,
  "limit": 50,
  "offset": 0,
  "items": [
    {
      "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "url": "https://example.com/webhooks/djonanko",
      "payload": {
        "status": "SUCCESS",
        "amount": 5000,
        "reference": "PAYR9PVUYEWVF",
        "provider": "Wave",
        "country_code": "CI",
        "created_date": "2026-09-18T08:00:00.000Z",
        "fees": 100,
        "metadata": {
          "order_id": "CMD-2026-00042",
          "email": "client@example.com",
          "phoneNumber": "+2250700000000"
        }
      },
      "status": "PENDING",
      "attempts": 8,
      "maxAttempts": 8,
      "lastHttpStatus": 403,
      "lastError": "<string>",
      "nextRetryAt": "2023-11-07T05:31:56Z",
      "deliveredAt": "2023-11-07T05:31:56Z",
      "createdAt": "2023-11-07T05:31:56Z"
    }
  ]
}

{
  "statusCode": 401,
  "message": "Invalid API credentials",
  "error": "Unauthorized"
}

{
  "statusCode": 401,
  "message": "Invalid API credentials",
  "error": "Unauthorized"
}