Previously, adoptions were synced with hardcoded contributionPerTree=1,
resulting in contribution values like 0.7 instead of the expected 15831.9.
Now the handler fetches the actual contribution rate from ContributionRateService
based on the adoption date, storing values like:
- Personal (70%): 22617 × 70% = 15831.9
- Team Level (0.5%): 22617 × 0.5% = 113.085
- Team Bonus (2.5%): 22617 × 2.5% = 565.425
Note: Historical data may need migration to apply the correct multiplier.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- 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>
Root cause: calculateForAdoption uses separate DB connections, which
cannot see uncommitted data in Serializable isolation level, causing
"Adoption not found" errors.
Solution (following Kafka Idempotent Consumer best practice):
- Add TransactionalCDCHandlerWithResult<T> type for handlers with return
- Add withIdempotencyAndCallback() wrapper for post-commit callbacks
- Add registerTransactionalHandlerWithCallback() registration method
- AdoptionSyncedHandler.handle() now returns AdoptionSyncResult
- Contribution calculation runs AFTER transaction commits via callback
Reference: Lydtech Consulting - Kafka Idempotent Consumer Pattern
https://www.lydtechconsulting.com/blog/kafka-idempotent-consumer-transactional-outbox
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