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defiQUG 89b82cdadb chore: sync submodule state (parent ref update)

Made-with: Cursor

2026-03-02 12:14:07 -08:00

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Quick Start Guide - Ledger Correctness Boundaries

🚀 Quick Deployment

1. Verify Database Column Names (5 seconds)

npm run db:verify-columns
# or
psql $DATABASE_URL -f scripts/verify-column-names.sql

Expected: Database uses snake_case (e.g., ledger_id, debit_account_id)

2. Audit Existing Data (10 seconds)

npm run db:audit-balances
# or
psql $DATABASE_URL -f scripts/audit-balances.sql

Action: Fix any inconsistencies found before applying balance constraints.

3. Run Migrations (30 seconds)

npm run db:run-migrations
# or
./scripts/run-migrations.sh $DATABASE_URL

Expected: All migrations complete successfully.

4. Generate Prisma Client (5 seconds)

npm run prisma:generate

5. Configure SCB API Credentials

Set environment variables for each SCB:

export SCB_SCB-1_API_URL="https://scb1-api.example.com"
export SCB_SCB-1_API_KEY="your-api-key"
export SCB_SCB-2_API_URL="https://scb2-api.example.com"
export SCB_SCB-2_API_KEY="your-api-key"
# ... repeat for each SCB

6. Start Worker

npm run worker:dual-ledger-outbox

Or use PM2:

pm2 start npm --name dual-ledger-outbox -- run worker:dual-ledger-outbox

7. Monitor Outbox Queue

npm run db:monitor-outbox
# or
./scripts/monitor-outbox.sh $DATABASE_URL

✅ Verification (1 minute)

Test Atomic Posting

import { ledgerPostingModule } from '@/core/ledger/ledger-posting.module';

const result = await ledgerPostingModule.postEntry({
  ledgerId: 'Test',
  debitAccountId: 'account1',
  creditAccountId: 'account2',
  amount: '100.00',
  currencyCode: 'USD',
  assetType: 'fiat',
  transactionType: 'Type_A',
  referenceId: 'test-ref-123',
});

Test Outbox Pattern

import { gssMasterLedgerService } from '@/core/settlement/gss/gss-master-ledger.service';

const result = await gssMasterLedgerService.postToMasterLedger({
  nodeId: 'SSN-1',
  sourceBankId: 'SCB-1',
  destinationBankId: 'SCB-2',
  amount: '1000.00',
  currencyCode: 'USD',
  assetType: 'fiat',
}, 'my-reference-id');

// Check outbox
const outbox = await prisma.dual_ledger_outbox.findFirst({
  where: { referenceId: 'my-reference-id' },
});
console.log(outbox?.status); // Should be 'QUEUED'

📊 Key Metrics

Monitor Queue Depth

SELECT status, COUNT(*) FROM dual_ledger_outbox GROUP BY status;

Expected:

QUEUED: < 100
FAILED: < 10
FINALIZED: Most jobs

Monitor Failed Jobs

SELECT * FROM dual_ledger_outbox 
WHERE status = 'FAILED' 
ORDER BY last_attempt_at DESC 
LIMIT 10;

🔧 Troubleshooting

Issue: Migration fails "column does not exist"

Fix: Verify column names match your database schema.

Issue: Balance constraints fail

Fix: Run scripts/audit-balances.sql, fix inconsistencies, then retry.

Issue: Worker not processing jobs

Check:

Worker process is running: ps aux | grep dual-ledger-outbox
Outbox has QUEUED jobs: SELECT COUNT(*) FROM dual_ledger_outbox WHERE status = 'QUEUED';
Database connection is working

Issue: SCB API calls failing