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Webhooks cu HMAC signature: cum verifici
Toate webhooks sunt signed cu HMAC-SHA256. Cod sample Node + Python.
Setup
Settings → Webhooks → adaugă URL + selectează events.
Header signature
x-megaforms-signature: hex(HMAC-SHA256(body, secret)).
Verificare Node.js
expected = crypto.createHmac('sha256', SECRET).update(rawBody).digest('hex'); if (expected !== req.headers['x-megaforms-signature']) throw new Error('Invalid');Retry
Exponential backoff: 1s, 5s, 25s, 2min, 10min, 1h, 6h, 24h. Max 8 încercări.