Payment platforms have no tolerance for downtime or slow responses. This reference architecture describes how to design a payment processing stack on DAAKYI Cloud that stays available through traffic spikes, hardware failures, and regional incidents.
The Design Problem
West African payment traffic is heavily cyclical — month-end salary disbursements and holiday commerce can multiply request volume within minutes. An architecture sized for average load will fail exactly when it matters most, so the design goal is elasticity with strict latency budgets.
The Architecture
Deploy the transaction tier on DC Virtual Machines in the West Africa (Accra) region behind a DC Load Balancer, in HA pools with anti-affinity rules so no two nodes share a host. Protect transaction state with DC Backup to an independent, immutable repository and DC Continuous Data Protection for second-scale recovery points. Encrypt all payment data with customer-managed keys in DC Key Management, and isolate the cardholder data environment in its own DC Virtual Network segment with distributed firewall policy. For institutions with cross-border continuity requirements, a Dedicated Cloud site in a second jurisdiction can serve as the disaster recovery target — scoped during service design.
Key Design Decisions
- Size for peak and reserve capacity ahead of known events — payment bursts arrive faster than any scaler reacts
- HA first, multi-region second — most failures are local and HA restart is measured in minutes
- Idempotency keys on every transaction API so retries stay safe during failover
- DC WAF and DAAKYI Shield in front of every public endpoint
The components in this architecture are delivered through the DAAKYI Cloud service catalog. Talk to our solutions team to adapt the design to your transaction volumes, settlement requirements and recovery objectives.
