4.1. Build Custom Features

In this chapter, you'll learn about the concepts you need to build custom features in your Medusa application.

To add a custom feature to your application, you create:

1. A module with data models and a main service to manage them.
2. A workflow to create, update, and delete records of data models. You implement functionalities in a workflow to benefit from features such as roll-back in case of errors, retry configurations, and more.
3. An API route that exposes the workflow's functionality to clients, such as the storefront or admin dashboard.

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Next Chapters: Brand Module Example#

In the next chapters, you'll follow an example to:

1. Add a Brand Module that creates a Brand data model and provides data-management features.
2. Add a workflow to create a brand.
3. Expose an API route that allows admin users to create a brand using the workflow.

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