Verify a server-attested webhook delivery

curl --request POST \
  --url https://dashboard.perkstar.co.uk/api/v1/webhooks/deliveries/verify \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "webhook_id": "<string>",
  "delivery_id": "<string>",
  "timestamp": 1,
  "signature": "<string>",
  "event": {
    "id": "whd_01JEXAMPLE",
    "type": "transaction.created",
    "created": 1785312000,
    "orgId": "org_123",
    "data": {
      "transactionId": "txn_123",
      "enrollmentId": "enr_123",
      "cardId": "card_123",
      "type": "STAMP",
      "delta": 1,
      "balanceAfter": 6,
      "occurredAt": "2026-07-30T10:00:00.000Z"
    }
  }
}
'

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    webhook_id: '<string>',
    delivery_id: '<string>',
    timestamp: 1,
    signature: '<string>',
    event: {
      id: 'whd_01JEXAMPLE',
      type: 'transaction.created',
      created: 1785312000,
      orgId: 'org_123',
      data: {
        transactionId: 'txn_123',
        enrollmentId: 'enr_123',
        cardId: 'card_123',
        type: 'STAMP',
        delta: 1,
        balanceAfter: 6,
        occurredAt: '2026-07-30T10:00:00.000Z'
      }
    }
  })
};

fetch('https://dashboard.perkstar.co.uk/api/v1/webhooks/deliveries/verify', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

import requests

url = "https://dashboard.perkstar.co.uk/api/v1/webhooks/deliveries/verify"

payload = {
    "webhook_id": "<string>",
    "delivery_id": "<string>",
    "timestamp": 1,
    "signature": "<string>",
    "event": {
        "id": "whd_01JEXAMPLE",
        "type": "transaction.created",
        "created": 1785312000,
        "orgId": "org_123",
        "data": {
            "transactionId": "txn_123",
            "enrollmentId": "enr_123",
            "cardId": "card_123",
            "type": "STAMP",
            "delta": 1,
            "balanceAfter": 6,
            "occurredAt": "2026-07-30T10:00:00.000Z"
        }
    }
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://dashboard.perkstar.co.uk/api/v1/webhooks/deliveries/verify",
  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([
    'webhook_id' => '<string>',
    'delivery_id' => '<string>',
    'timestamp' => 1,
    'signature' => '<string>',
    'event' => [
        'id' => 'whd_01JEXAMPLE',
        'type' => 'transaction.created',
        'created' => 1785312000,
        'orgId' => 'org_123',
        'data' => [
                'transactionId' => 'txn_123',
                'enrollmentId' => 'enr_123',
                'cardId' => 'card_123',
                'type' => 'STAMP',
                'delta' => 1,
                'balanceAfter' => 6,
                'occurredAt' => '2026-07-30T10:00:00.000Z'
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

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

curl_close($curl);

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

{
  "verified": false
}

{
  "error": {
    "type": "authentication_error",
    "message": "<string>",
    "code": "<string>",
    "param": "<string>"
  }
}

{
  "error": {
    "type": "authentication_error",
    "message": "<string>",
    "code": "<string>",
    "param": "<string>"
  }
}

{
  "error": {
    "type": "authentication_error",
    "message": "<string>",
    "code": "<string>",
    "param": "<string>"
  }
}