vendure-delivery-plugin

SKILL.md

Guide creation of delivery and fulfillment features in Vendure with production-grade patterns for concurrency, performance, and reliability.

For detailed Shop API patterns (IDOR prevention, customer-facing resolvers) and Entity patterns, see references/API-ENTITY-PATTERNS.md.

| Race condition on booking | Missing pessimistic lock | Use setLock('pessimisticwrite') | | Wrong date in different TZ | Storing local time | Always convert to UTC for storage | | Slow slot availability | N+1 queries | Use batch counting with GROUP BY | | Duplicate reservations | Missing idempotency | Implement X-Idempotency-Key handling |

Build delivery and fulfillment plugins for Vendure with idempotency, capacity management, timezone handling, and N+1 prevention. Covers ShippingCalculator, FulfillmentHandler, and slot reservation patterns. Use when implementing delivery features. Source: meriley/claude-code-skills.

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