shopify

To scaffold a Shopify checkout UI extension, you must define the extension target and required scopes within a `shopify.app.toml` configuration file, then implement the UI component using the platform's extension models and App Bridge for a minimal end-to-end deployment.

Handling Shopify webhooks requires implementing HMAC verification for secure delivery and designing idempotent handlers to prevent duplicate processing, while mandatory GDPR endpoints must be exposed to meet App Store compliance and approval requirements.

Building Remix-based embedded Shopify apps requires applying secure session token handling and OAuth patterns to authenticate users, ensuring correct app embedding and safe communication with the Admin API for real merchant scenarios.

You need to use Shopify Admin API GraphQL patterns when implementing data fetching that requires efficient, precise queries with built-in pagination and rate limiting considerations, whereas REST is used for simpler administrative tasks within your app architecture.

Yes, you can implement Shopify Functions and Web Pixel extensions within custom app architectures by mapping the correct extension models and targets in your TOML configuration to integrate with the Admin API and Storefront API flows.

Legacy private apps lack support for modern extension surfaces like Checkout UI and Shopify Functions, have restricted embedding approaches, and cannot utilize the Billing API or meet App Store publishing and GDPR compliance requirements like public apps.