This whitepaper proposes decoupling high-volume insurance APIs from SAP by replicating SAP data via SLT (CDC) into a PostgreSQL Operational Data Store (ODS). Instead of querying SAP directly, scalable Go microservices access the ODS, with KrakenD acting as the API gateway. This removes SAP from the real-time request path, improving performance, scalability, and SLA reliability.

The architecture enables horizontal scaling, fault isolation, and strong observability while reducing load on SAP. Although it introduces eventual consistency, replication lag is minimal and manageable for read-heavy use cases. Overall, it delivers a resilient, scalable, and cost-efficient API platform for enterprise insurance environments.