Dmitriy
16f3f851b1
GET /slots/availability, POST /slots/{id}/hold, POST /holds/{id}/confirm
and DELETE /holds/{id} on Laravel 12 and MySQL 8.
- availability cached for 10s behind a single-flight lock with a stale
copy, invalidated after commit on confirm and cancel
- oversell prevented by a conditional decrement, verified by the number
of affected rows rather than a preceding select
- idempotency enforced by a unique index on holds.idempotency_key
- active holds counted with an expires_at filter, so no background
cleanup is required for correctness
- 27 feature tests against MySQL, service documentation, Postman collection
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
15 lines
616 B
PHP
15 lines
616 B
PHP
<?php
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declare(strict_types=1);
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return [
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// Сколько секунд GET /slots/availability отдаётся из кеша.
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// Stale-копия живёт в шесть раз дольше и гасит stampede во время пересчёта.
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'availability_cache_ttl' => (int) env('SLOT_AVAILABILITY_CACHE_TTL', 10),
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// Время жизни холда. Истёкшие перестают занимать место за счёт фильтра
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// по expires_at, поэтому фоновая очистка не нужна.
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'hold_ttl' => (int) env('SLOT_HOLD_TTL', 300),
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];
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