function verifyWebhookSignature(payload, signature, secret) const expected = crypto .createHmac('sha256', secret) .update(JSON.stringify(payload)) .digest('hex'); return crypto.timingSafeEqual(Buffer.from(signature), Buffer.from(expected));
In the complex ecosystem of e-commerce, represents the engine room of digital transaction processing. It facilitates the secure, efficient transfer of capital while insulating merchants from the complexities of regulatory compliance. checkout.hubuppayments.com
| Symptom | Likely Fix | |--------------------------------------|----------------------------------------------| | 401 Unauthorized on API calls | Check secret_key, environment (test/live) | | Redirect to success but no webhook | Verify webhook URL is reachable, HTTPS only | | checkout_url returns 404 | Payment intent expired – recreate | | iframe blocked by X-Frame-Options | Use redirect instead; embedding may be disabled | secret) const expected = crypto .createHmac('sha256'