The challenge
An online retailer manually reconciled orders between its storefront, fulfilment provider, and accounting software. It was slow, error-prone, and didn't scale with growth.
Discovery
Discovery mapped exactly what data needed to move between systems — and, just as importantly, what should happen when a step failed.
The solution
Event-driven integrations connected the storefront to fulfilment and accounting, with idempotent processing, retries, and monitoring so failures surfaced immediately instead of silently.
Architecture
A Node.js integration service using webhooks and a queue, with PostgreSQL for state and monitoring and alerting for reliability.
What we learned
Designing for the failure paths — not just the happy path — is what made the integration something the business could actually rely on.
Features delivered
- Event-driven order syncing
- Idempotent processing and retries
- Automated reconciliation
- Monitoring and failure alerts
Outcomes
- Manual reconciliation largely removed
- Fewer errors between systems
- A pipeline that holds up as volume grows