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