advanced~5h
Microservices Persistence — Database-per-Service, Outbox Pattern & CDC
Database-per-service breaks every cross-entity transactional guarantee this course has relied on so far — the outbox pattern and CDC are the specific tools that restore reliable consistency across independently-owned service databases.
Learning objectives
- Explain the dual-write problem and why a naive database-update-then-network-call approach is unsafe.
- Implement the outbox pattern to atomically persist a business change and its corresponding event.
- Explain what CDC/Debezium does differently from application-level event publishing, and why consumers must be idempotent.
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Microservices Persistence — Database-per-Service, Outbox Pattern & CDC