Shopify Apps

Patterns

React Router App Setup

Modern Shopify app template with React Router

Embedded App with App Bridge

Render app embedded in Shopify Admin

Webhook Handling

Secure webhook processing with HMAC verification

Anti-Patterns

❌ REST API for New Apps

❌ Webhook Processing Before Response

❌ Polling Instead of Webhooks

⚠️ Sharp Edges

| Issue | Severity | Solution | |-------|----------|----------| | Issue | high | ## Respond immediately, process asynchronously | | Issue | high | ## Check rate limit headers | | Issue | high | ## Request protected customer data access | | Issue | medium | ## Use TOML only (recommended) | | Issue | medium | ## Handle both URL formats | | Issue | high | ## Use GraphQL for all new code | | Issue | high | ## Use latest App Bridge via script tag | | Issue | high | ## Implement all GDPR handlers |