From CDC events to domain events
On This Lesson 4 topics
This lesson is planned. The outline below lists the topics it will cover. The full lesson has not been published yet.
In this lesson
translate table changes into meaningful business events.
Planned topics
- A CDC event says a row changed, not why.
- Domain events carry business meaning and a stable contract.
- Translate in an anti-corruption layer owned by the consuming or integration team.
- Never expose raw table changes as the public contract.
Draft outline details
Demonstration
mapping: stock_levels row update (qty 12 -> 9) becomes StockLevelChanged {sku, warehouse, available, reason: unknown, occurredAt}; a translator service with tests.
Check your understanding
Why not publish raw CDC as the contract?
Show answer
It couples consumers to the legacy schema.
Practice
Apply this lesson with the module's lab, exercises and quiz.
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