row-locking

Generate sequential invoice numbers, transaction IDs, purchase orders, and business document numbers in Laravel with database row locking and configurable reset scopes.

Postgres inventory that cannot be oversold: cart reservations, row locks, idempotent checkout, and a test that races real connections to prove it.

Full-stack inventory and order platform with PostgreSQL row locks, atomic stock deduction, Alembic migrations, Docker, and React.

Сервис бронирования мероприятий на Go с PostgreSQL, TTL брони, scheduler и защитой от overbooking.

Sequential, gap-free, concurrency-safe document numbers for Laravel: invoices, quotes and credit notes. Configurable patterns, per-scope counters, period resets, row-lock safety.