SyncLayer
Retail infrastructure connecting store inventory across multiple retailers in real time.
Coverage
Integration
Sync
The brief
“We need a platform that connects our inventory across multiple retail partners. A single source of truth for stock levels, pricing, and product data. It has to be fast, reliable, and easy for retailers to integrate.”
The challenge
Multi-retailer sync. Zero data loss.
Syncing inventory across multiple independent retailers means handling conflicting data, race conditions, and varying update frequencies. The system needed to be resilient enough for production retail while simple enough for small shop owners to onboard and start syncing in minutes, not weeks.
What we built
Feature by feature
Unified dashboard
Single view across all connected retailers with real-time sync status and health monitoring.
REST API
Clean, well-documented endpoints for inventory CRUD and webhook subscriptions.
Conflict resolution
Automatic handling of concurrent stock updates with full audit trail.
Retailer onboarding
Self-serve integration flow with API key management and a testing sandbox.
Real-time sync
WebSocket-powered live updates with configurable polling fallback for reliability.
Analytics & reporting
Stock movement, sync health, and retailer performance metrics at a glance.
Key decisions
Why we built it this way
PostgreSQL over NoSQL
Inventory data is relational. Joins and transactions matter more than schema flexibility when tracking stock across retailers.
REST over GraphQL
Retailers expect REST. Simpler to document, easier to debug, and lower onboarding friction for non-technical partners.
Event-driven architecture
Webhooks and a message queue ensure no update is lost, even during retailer downtime or network interruptions.
Screenshots
The platform in action
Results
Retailers connected at launch
Sync uptime
API response time
Need infrastructure that scales?
We built SyncLayer to handle real-time retail data across multiple partners. Let's build yours.