Agent skill · software engineering · jeremylongshore
shopify-reliability-patterns
Implement reliability patterns for Shopify apps including circuit breakers
Why this skill is useful
Adds executable patterns for building fault-tolerant Shopify integrations, including circuit breakers and webhook handling that aren't widely documented.
What it needs
Requires bullmq, redis installed locally. About 2k tokens when loaded. Last updated 2026-08-07. 2,604 stars on the source repository.
What this skill does
Shopify Reliability Patterns Overview Build fault-tolerant Shopify integrations that handle API outages, webhook retry storms, and rate limit exhaustion gracefully. Prerequisites Understanding of circuit breaker pattern Queue infrastructure (BullMQ, SQS, etc.) for async processing Cache layer for fallback data Instructions Step 1: Circuit Breaker for Shopify API Wrap all Shopify API calls in a circuit breaker (using opossum) that opens at 50% error rate, only counting 5xx and timeout errors. When open, serve cached data. The breaker auto-tests recovery after 30 seconds in half-open state. See Circuit Breaker for the complete implementation. Step 2: Webhook Idempotency Shopify retries webhooks up to 19 times over 48 hours if your endpoint doesn't return 200. Your handler must be idempotent. Use Redis to track X-Shopify-Webhook-Id with a 7-day TTL. Always respond 200 within 5 seconds, then process asynchronously. See Webhook Idempotency for the complete implementation. Step 3: Graceful Degradation with Cached Fallback Implement a three-tier fallback: try the live API first (caching the result), fall back to cached data, then fall back to an alternative data source (e.g., local DB). Track the data source so you can log degraded responses. See Cached Fallback for the complete implementation. Step 4: Webhook Processing Queue Don't process webhooks inline — queue them with BullMQ for resilience. Verify HMAC first, respond 200 immediately, then enqueue with topic/shop/payload metadata. The worker processes jobs with exponential backoff (5 retries) and idempotency checks. See Webhook Processing Queue for the complete implementation. Step 5: Rate Limit-Aware Retry Retry logic that respects Shopify's Retry-After header (REST 429) and GraphQL throttle status restore rate. Calculates optimal wait time from available points rather than blindly backing off. See Rate Limit-Aware Retry for the complete implementation. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills jeremylongshore/shopify-reliability-patterns--1380a3