A payment gateway has no right to fail. A lost or duplicated transaction is the customer’s money and the business’s reputation. Peak load can exceed the average flow tenfold. Here is how to hold 5000+ TPS at 99.99% uptime.
Reliability rests on idempotency and delivery guarantees. Each operation gets a unique key; a repeated request never charges twice. Queues and the outbox pattern ensure events are never lost.
Horizontal scaling of stateless services adds capacity under load, while PostgreSQL with proper indexing and partitioning handles the transactional flow. Analytics stream to ClickHouse without loading the main database.
WOOX designs payment systems built for peak load: processing, acquiring, P2P and QR payments with PCI DSS. If your gateway can’t handle the load, we will help rethink the architecture.
Subscribe For More
