LOOV SOLUTIONS / PASSERELLE DE PAIEMENT
Context
Provide developers and merchants with a single API to collect payments without manually integrating each telecom carrier. The service required high availability, guaranteed idempotency and reliable webhooks.
My role
Design and engineering of API endpoints, merchant authentication key management and asynchronous payment webhook dispatching.
Decisions & approach
- 01
Guarantee transaction idempotency to eliminate double-charge risks during network timeouts.
- 02
Implement exponential backoff retries for webhook delivery to merchant servers.
- 03
Complete sandbox environment with transaction status simulation to streamline developer onboarding.
The work
- OpenAPI specification and interactive developer documentation.
- Payment initiation, verification and refund endpoints.
- Transaction analytics dashboard and API key management portal.
Status & next steps
Solution in active production use by platform merchants.