Testing Medusa: What to Test, What to Skip, and How
Commerce code moves money, so untested checkout logic is a liability. A pragmatic test strategy — what earns its keep, and what is theatre.
[ TAG / MODULES ]
Modules articles
Articles tagged Modules — hands-on notes from the commerce builds we ship.
Search in Medusa: Algolia, Meilisearch and Keeping the Index Fresh
Database search stops working sooner than you expect. Choosing an engine, building the index, and the sync strategy that survives a bulk import.
Selling Digital Products with Medusa: Delivery, Licensing and VAT
No shipping, no inventory, and a set of problems physical goods never have: secure delivery, licence enforcement, and tax charged where the customer is.
Building a Marketplace on Medusa: Vendors, Splits and Payouts
Multi-vendor commerce means splitting one customer order into several vendor orders, and moving money to people who are not you. The model and the money mechanics.
Building Subscriptions on Medusa: Billing Cycles, Dunning and Churn
Recurring billing is a scheduling problem with money attached. The data model, the renewal workflow, and the failure handling that determines involuntary churn.
B2B Commerce on Medusa: Companies, Approvals, Quotes and Net Terms
The four capabilities that separate B2B from DTC, modelled as Medusa modules and workflows — with the data model that makes approvals work.
Tax in Medusa: Regions, Rates, Overrides and When to Use a Tax Engine
Tax-inclusive versus tax-exclusive pricing, product overrides, and the point at which manual rates stop being viable and you buy an engine.
Medusa Fulfilment: Stock Locations, Service Zones and Carriers
Why your shipping options are empty, how the fulfilment model actually fits together, and how to build a provider that talks to a real carrier.
Building a Custom Payment Provider for Medusa
The provider interface method by method, a working implementation, and the idempotency and webhook details that separate a demo from something you can take money with.
Medusa Project Structure: Where Every Kind of Code Belongs
Medusa loads code by convention. A directory-by-directory guide to what goes where, and the decision tree for placing any new piece of logic.
Medusa Plugins: Building and Publishing Reusable Commerce Packages
When a module should become a plugin, how the package is structured, and what changes when your code has to run in someone else's application.
The Medusa Container: Dependency Injection Without the Ceremony
Everything in Medusa is resolved from a container. What is registered, how scoping works per request, and how to avoid the two mistakes that cause leaks.