69 lines
5.1 KiB
Markdown
69 lines
5.1 KiB
Markdown
---
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title: Postgres Runtime Cutover Status
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tags: [data-model, postgres, migration, runtime-status]
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aliases: [Postgres Status, PG Cutover Status, Mongo vs Postgres Runtime]
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created: 2026-05-31
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source: backend origin/integrate-main-into-development@cab0719
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---
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# Postgres Runtime Cutover Status
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> **Current branch:** backend `origin/integrate-main-into-development` at `cab0719`, version `2.6.80`.
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>
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> **Bottom line:** this branch is **Postgres-capable**, not fully Postgres-backed. MongoDB remains the live source of truth for normal app traffic until services are actually rewired through the repository factory and cutover flags are verified in a running environment.
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## What Uses Postgres Now
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| Area | Runtime status | Notes |
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|---|---|---|
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| Postgres connection | Available when `PG_URL` is set | `src/db/client.ts` fail-fast requires an explicit DSN before importing PG code. |
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| Schema/migrations | Implemented through migration `0008` | Drizzle schemas cover users, categories, purchase requests, seller offers, payments, funds ledger, derived destinations, trezor accounts, points, `id_map`, `pg_dualwrite_gaps`, and `payment_quotes`. |
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| Repository implementations | Implemented but not broadly called | `src/db/repositories/{mongo,drizzle,dual}` and `factory.ts` exist for user, payment, points, and marketplace domains. |
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| Oracle quote persistence | Conditional runtime PG write | `/api/payment/request-network/intents` lazily imports `quoteRepo` only when `ORACLE_QUOTING_ENABLED=true`; it writes `payment_quotes` if the PG parent payment row exists, mirrors to Mongo `Payment.quote`, and records `pg_dualwrite_gaps` if PG is behind. |
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| Backfill/verify scripts | Available as operator tooling | `MIGRATION_PG_URL` drives backfill scripts; guards restrict allowed target hosts. These scripts are not run automatically by app startup. |
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## What Is Still Mongo-Backed
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The service layer still imports Mongoose models directly. A source scan on 2026-05-31 found no runtime calls to `createRepositories()` / `getPaymentRepo()` / `getMarketplaceRepo()` outside `src/db/repositories/factory.ts`; the only normal service import of `src/db/client.ts` is `priceOracle/quoteRepo.ts`.
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| Domain | Current live store | Why not Postgres yet |
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|---|---|---|
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| Auth, users, passkeys, refresh tokens | MongoDB | Auth/user controllers call `User` and related Mongoose models directly. |
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| Marketplace requests/offers/templates/categories/shop settings | MongoDB | Marketplace, checkout, and seller-offer services call `PurchaseRequest`, `SellerOffer`, `RequestTemplate`, `Category`, and `ShopSettings` directly. |
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| Payments and escrow state | MongoDB primary | Request Network, AMN scanner, webhook, admin, release/refund, adapter, reconciliation, and legacy payment paths still create/update `Payment` Mongoose documents directly. |
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| Funds ledger | MongoDB primary | `FundsLedgerEntry` remains the ledger used by current services; PG ledger tables exist but are not the live write target. |
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| Derived destinations and sweeps | MongoDB | Wallet destination allocation and sweep services call `DerivedDestination` directly. |
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| Points/referrals/levels | MongoDB | Points service uses `User`, `PointTransaction`, `LevelConfig`, and Mongo transactions. |
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| Chat/messages | MongoDB | Chat intentionally remains document-shaped and is not part of the current PG cutover. |
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| Notifications | MongoDB | Notification TTL/read-state paths remain Mongo-backed. |
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| Disputes/reviews/blog/content/admin cleanup | MongoDB | These services still call their Mongoose models directly. |
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| Runtime config | MongoDB | `ConfigSetting` and `ConfigSettingHistory` remain Mongo-backed for admin-editable configuration. |
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| Telegram link/session/temp verification | MongoDB | These session/link/TTL records are not cut over to PG. |
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## Env Flag Reality
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| Flag | Current meaning |
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|---|---|
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| `PG_URL` | Makes PG code importable/reachable; does not cut over app domains by itself. |
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| `MIGRATION_PG_URL` | Used by backfill scripts and migration runbooks; not part of normal request handling. |
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| `REPO_USER`, `REPO_PAYMENT`, `REPO_POINTS`, `REPO_MARKETPLACE`, `REPO_DEFAULT` | Repository factory flags exist, but broad services are not yet wired through the factory. Treat them as migration controls that need integration verification before relying on them. |
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| `ORACLE_QUOTING_ENABLED` | Enables server-side quote computation and the only current PG write path in normal checkout: `payment_quotes`, when a PG parent row can be resolved. |
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## Next Cutover Work
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1. Apply Drizzle migrations to the target Postgres database.
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2. Run non-prod backfills in dependency order and record row-count/checksum results.
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3. Wire services to repository interfaces one domain at a time.
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4. Enable `dual` mode per domain only after wiring is proven by tests and smoke checks.
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5. Run shadow-read/reconcile during a soak window.
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6. Flip reads to `pg` per domain only after zero-diff shadow reads and a rollback plan are in place.
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## Related Docs
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- [[Database Strategy - Mongo vs Postgres Assessment]]
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- [[MongoDB to PostgreSQL Migration Plan (Drizzle)]]
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- [[Payment]]
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- [[Payment API]]
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- [[Environment Variables]]
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- [[Database Operations]]
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