Implementation-heavy guides for engineers working on architecture, storefront performance, extensibility, and technical execution quality.
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A technical Shopify developer guide to Delivery Customization Functions covering hide, rename, and move operations, delivery groups, subscription edge cases, merchant configuration, and the checkout pitfalls that appear in production.
A technical Shopify developer guide to Discount Functions covering the unified API, product, order, and shipping discounts, selection strategies, combination rules, code rejection, admin configuration, and Cart Transform-safe architecture.
A practical guide to calling Rails endpoints from a Shopify Customer Account UI Extension, including session-token verification, endpoint design, and the requests that should not go through your backend at all.
A practical backend architecture guide for Shopify Checkout UI Extensions, covering when to call your own backend, how to keep the extension thin, and where teams overbuild the server side.
A failure-pattern guide for Shopify Theme App Extensions covering the issues that appear most often in production and the shortest debugging path for each one.
A practical architecture guide for Rails teams building retry-safe Shopify event pipelines with webhooks, queues, reconciliation jobs, and durable side-effect tracking.
Practical detection patterns for Shopify app blocks and app embeds, including App Bridge extension status in the embedded app and theme inspection strategies when you need server-side truth.
A practical guide to using Shopify metaobjects and dynamic sources in themes, including where they fit with app blocks, where they do not fit with app embeds, and how app-backed systems should model content.
How to structure a Shopify embedded app with React on the frontend and Rails on the backend, including auth boundaries, deployment shape, and the operational tradeoffs that matter in production.
A guide to session tokens in Shopify UI extensions, with the differences between embedded app auth, checkout extensions, and customer account extensions explained in architecture terms that matter in production.
Production patterns for using the Shopify Admin GraphQL API from Rails, including service boundaries, pagination strategy, throttling, partial failure handling, and when to switch to bulk operations.
An operator-focused technical guide to Shopify app embeds: what they are good for, how they differ from app blocks, how activation works, and the architectural constraints real apps run into.
A practical guide to using Shopify app proxies with a Rails backend and React frontend, including request validation, frontend architecture, and the cases where proxies are the wrong tool.
A Rails implementation guide for Shopify Bulk Operations covering job orchestration, JSONL downloads, polling versus webhooks, and the service boundaries that make large syncs maintainable.
A backend architecture guide for Shopify Customer Account UI Extensions using Rails for app logic, persistence, and API orchestration without turning the extension into a fragile mini-app.
A guide to the current Shopify installation model for Rails apps, explaining where managed install replaces older OAuth assumptions and where authorization code grant still matters.
A Rails-focused guide to Shopify session tokens for embedded apps, covering the Shopify App gem, token exchange, frontend request flow, and the mistakes that still break production auth.
A debugging workflow for Shopify Theme App Extensions that covers extension deployment, theme activation, storefront rendering, and the specific places app blocks and app embeds usually fail.
A Rails guide to Shopify webhook idempotency using event IDs, durable deduplication, and processing patterns that survive retries, duplicates, and delayed deliveries.
How to structure Theme App Extensions when your Shopify app backend is Rails, including configuration ownership, data flow, and the boundary between theme-safe data and app-owned backend logic.
An explanation of why Shopify app proxies are the wrong integration path for many UI extension scenarios, especially in checkout and customer account surfaces where session tokens and extension APIs are the real auth model.
A decision guide for Shopify developers choosing between synchronous GraphQL pagination and Bulk Operations, with practical thresholds based on workload shape rather than generic 'large dataset' advice.
A technical Shopify developer guide to Cart Transform Functions covering lineExpand, linesMerge, lineUpdate, bundle pricing, metafield-driven configuration, discount conflicts, limits, and production design patterns.
A practical Shopify guide to answer engine optimization covering AI search visibility, product citability, structured data, Shopify Catalog, entity signals, and measurement.
A practical Shopify developer guide to moving from checkout.liquid, Scripts, additional scripts, and script tags to Checkout UI Extensions, Functions, web pixels, and blocks.
A technical Shopify developer guide to migrating line item, shipping, and payment Scripts to Shopify Functions, unified Discount API, delivery and payment customizations, validation, and modern deployment workflows.