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Technical
Real-Time Treasury with Webhooks: Event-Driven Financial Operations
Building real-time treasury dashboards and automated workflows using webhook notifications for payments, deposits, and settlements.
14 min read
January 3, 2025
Real-time treasury operations require real-time notifications. Polling APIs for status updates creates latency, wastes resources, and misses time-sensitive events. Webhook architecture provides push-based notifications the moment events occur: payment completed, settlement received, balance threshold breached. This guide covers webhook implementation patterns for robust, real-time treasury systems.
Webhook Events
- payment.completed: Payment successfully settled
- payment.failed: Payment failed (with error details)
- deposit.received: Incoming funds detected
- balance.low: Balance below configured threshold
- security.alert: Suspicious activity detected
typescript
// Webhook Handler Example
import { verifyWebhookSignature } from '@grainandvault/sdk'
app.post('/webhooks/grain', async (req, res) => {
// Verify authenticity
const isValid = verifyWebhookSignature(
req.body,
req.headers['x-grain-signature'],
WEBHOOK_SECRET
)
if (!isValid) return res.status(401).send('Invalid signature')
const event = req.body
switch (event.type) {
case 'payment.completed':
await markInvoicePaid(event.data.metadata.invoiceId)
await postToERP(event.data)
break
case 'balance.low':
await notifyTreasury(event.data)
await initiateAutoFunding(event.data.wallet)
break
}
res.status(200).send('OK')
})Reliability Patterns
- Signature Verification: Cryptographically verify webhook authenticity
- Idempotency: Handle duplicate deliveries gracefully
- Retry Logic: Automatic retries with exponential backoff
- Dead Letter Queue: Capture failed webhooks for investigation
- Health Monitoring: Alert on webhook processing failures
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