Medusa v2 Custom Modules

Before writing code

Fetch live docs:

1. Fetch https://docs.medusajs.com/learn/fundamentals/modules for module overview
2. Web-search site:docs.medusajs.com DML data model reference for model property types
3. Web-search site:docs.medusajs.com MedusaService methods for base service API
4. Web-search site:docs.medusajs.com module links for linking modules together
5. Web-search site:docs.medusajs.com module container registration for dependency injection

Module Concept

A module is a self-contained package of functionality in Medusa v2:

• Encapsulates data models, services, and business logic
• Registered in medusa-config.ts under the modules array
• Accessed from workflows, API routes, and subscribers via the dependency container
• Modules communicate through links, not direct imports