Implement OAuth 2.0 safely: use Authorization Code with PKCE, keep secrets server-side, rotate credentials, and never embed client secrets in mobile, SPA, or public code.
Month: April 2026
Resolve CORS in complex SPAs by aligning API origins, preflight headers, credentials, and proxy rules-then log OPTIONS failures to pinpoint misconfigured gateways.
Optimize globally: Place read replicas near users, route reads by latency, and monitor replication lag. Tune indexes and connection pools to keep apps fast and resilient.
Automated rollbacks pair health checks, deployment gates, and versioned releases to detect failures early and restore the last stable build without manual intervention.