Service Health History

Primary public API gateway. Routes all customer traffic, terminates TLS, applies rate limits and auth.

Subscription billing, invoicing, tax calculation. Integrates with Stripe.

OAuth2 / OIDC identity provider, session management, MFA verification.

Primary OLTP PostgreSQL cluster, multi-AZ synchronous replication.

Redis 7 cluster for session cache, rate limiting, and pub/sub.

Payment checkout flow orchestration. Handles 3DS, retries, idempotency.

Kafka event bus for cross-service async communication.

Customer-facing Next.js web application. SSR + ISR, multi-region.

HashiCorp Vault for secrets management and dynamic credentials.

Policy evaluation engine for RBAC/ABAC. Open Policy Agent based.

Immutable ledger of all payment events. Append-only, double-entry.