Willem Luijt
“It must be correct before it can be fast.”
In my spare time, I enjoy consuming fantastical stories told through various media, such as movies or video streams. In particular, I have been following a number of D&D campaigns to experience many serious and silly moments along with incredible battle scenes.
And always remember:
$DO || ! $DO ; try
try: command not found
Articles by Willem Luijt
- Designing Recoverable Shopify Syncs: From Failed Batches to Targeted Retries
Designing Recoverable Shopify Syncs: From Failed Batches to Targeted Retries
Published 9/19/2026Reliable Shopify integrations need more than background jobs and retries. This article explains how object-level recovery messages, safe GraphQL slicing, and focused test coverage make inventory, metafield, and variant synchronization easier to diagnose and recover.
E-CommerceSymfonyShopifyPHP - Keeping Shopify Checkout QA Reliable When the Platform Changes Underneath You
Keeping Shopify Checkout QA Reliable When the Platform Changes Underneath You
Published 9/17/2026Shopify checkout is a moving dependency. This project shows how resilient end-to-end browser tests can absorb interface changes—such as consent overlays and new required fields—without weakening validation of the shipping logic customers rely on.
E-CommerceSymfonyShopifyPHP - How Bounded Failure Handling Keeps Ecommerce Order Middleware Moving
How Bounded Failure Handling Keeps Ecommerce Order Middleware Moving
Published 9/13/2026A resilient ecommerce integration should not retry impossible order failures forever. This implementation detects persistent delivery or pickup location errors, waits for a one-day threshold, and moves affected middleware orders into an auditable terminal state.
E-CommerceSymfonyShopifyPHP - Keeping Shopify–STORIS Order Sync Safe Through GraphQL API Changes
Keeping Shopify–STORIS Order Sync Safe Through GraphQL API Changes
Published 9/10/2026A reliable Shopify–STORIS integration needs more than successful API calls. This technical deep dive explains how explicit idempotency testing, version-aware order mapping, and end-to-end regression coverage protect order synchronization as upstream and downstream APIs change.
E-CommerceSymfonyShopifyPHP - Designing Doctrine Indexes Around Real Ecommerce Middleware Lookup Paths
Designing Doctrine Indexes Around Real Ecommerce Middleware Lookup Paths
Published 9/8/2026A practical look at using Doctrine’s metadata event system to manage a consistent, query-driven index policy for ecommerce middleware—without scattering database decisions across individual entities and migrations.
SoftwareSymfonyPHP - Preventing Silent Variant Sync Failures in Asynchronous Ecommerce Middleware
Preventing Silent Variant Sync Failures in Asynchronous Ecommerce Middleware
Published 9/7/2026A look at a resilient PHP middleware pattern for synchronizing ecommerce product variants asynchronously—without losing the persistence context needed to make updates actually happen.
SoftwareE-CommerceShopifyPHP - Bringing In‑Store Personalization Online: How We Integrated STORIS with Klaviyo Using Webhooks
Bringing In‑Store Personalization Online: How We Integrated STORIS with Klaviyo Using Webhooks
Published 12/28/2025How we connected STORIS to Klaviyo with a custom webhook middleware so retailers can use in‑store quotes, orders, and fulfillments to trigger personalized email flows, review requests, and smarter segmentation—bringing online‑level personalization to the showroom.
E-CommerceMarketingKlaviyo - Docker API Platform from PostgreSQL to MySQL
Docker API Platform from PostgreSQL to MySQL
Published 8/1/2023A technical article about changing PostgreSQL to MySQL with code text to copy along with your project. Follow the steps closely to complete successfully.
SoftwareMySQL - MySQL Command Line Formatting Tips
MySQL Command Line Formatting Tips
Published 5/19/2023A blog article on formatting tips for using the MySQL Command Line. Work smarter and faster with these tips. Software developer approved!
SoftwareMySQL
