shopify-expert

Headless Shopify storefronts use the Storefront API to fetch product and cart data separately from theme rendering. Build by querying the 2024-10 Storefront API, handling GraphQL responses, and rendering custom frontends with frameworks like Hydrogen. This decouples your store logic from Shopify's default theme layer.

Customize themes by writing Liquid 2.0 templates for dynamic content and storing custom data in metafields. Liquid syntax renders product details, cart logic, and checkout flows; metafields extend Shopify's data model for brand-specific attributes. Both integrate through the Admin API and theme files.

Shopify apps use OAuth to request merchant authorization and webhooks to react to store events. Implement OAuth flows with proper scopes, store access tokens securely, and subscribe to webhooks for order, product, and customer events. App Bridge handles UI integration with the Shopify admin.

Hydrogen supports custom storefronts and post-purchase experiences on Shopify Plus. Build high-performance frontends with Hydrogen's React components, TypeScript, and image optimization, then connect via Storefront API. This enables branded checkout flows beyond standard Shopify themes.

Shopify storefronts require GDPR compliance for customer data, secure token handling, proper metafield validation, and error handling without exposing sensitive information. Implement these through Admin API scopes, webhook verification, and frontend input sanitization across theme and app code.

The Shopify CLI streamlines both theme and app workflows. Use it to scaffold, develop locally, and deploy custom themes and apps written in Liquid or TypeScript. It integrates with the Admin API, Storefront API, and handles authentication for testing against live stores.