- Remove conditional skip logic in CDC handlers
- Always sync all field updates (including status changes)
- Trigger contribution calculation only when status becomes MINING_ENABLED
- Fix user and referral handlers to sync all fields without skipping
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements 100% exactly-once semantics for CDC events from 1.0 databases
(identity-service, planting-service, referral-service) to contribution-service.
Key changes:
- Add ProcessedCdcEvent model with (sourceTopic, offset) unique constraint
- Add withIdempotency() wrapper using Serializable transaction isolation
- Add registerTransactionalHandler() for handlers requiring idempotency
- Modify CDC handlers to accept external transaction client
- All database operations now use the passed transaction client
This ensures that:
1. Each CDC event is processed exactly once
2. Idempotency record and business logic are in the same transaction
3. Any failure causes complete rollback
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add detailed [CDC] prefixed logs to all CDC handlers:
- cdc-consumer.service.ts: log message parsing, handler dispatch
- user-synced.handler.ts: log user sync operations with field details
- adoption-synced.handler.ts: log adoption sync and contribution calc
- referral-synced.handler.ts: log referral relationship sync
All logs use consistent [CDC] prefix for easy filtering.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
hailin