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lesnik512 merged 1 commit into from
Oct 16, 2026
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docs: link projects that use the Transaction use-case shape #73

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Expand Up @@ -158,6 +158,12 @@ class CreateEventUseCase:
return event
```

These projects use this use-case shape in full, with `pool_pre_ping` off and `postgres_retry` handling connections that died while idle in the pool:

- [fastapi-sqlalchemy-template](https://github.com/modern-python/fastapi-sqlalchemy-template/tree/main/app/use_cases)
- [litestar-sqlalchemy-template](https://github.com/modern-python/litestar-sqlalchemy-template/tree/main/app/use_cases)
- [chat-app](https://github.com/modern-python/chat-app/tree/main/app/use_cases)

### 4. Serializable transactions

Use the serializable isolation level to prevent race conditions:
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