3.2.1. Modules Directory Structure

In this document, you'll learn about the expected files and directories in your module.

index.ts#

The index.ts file in the root of your module's directory is the only required file. It must export the module's definition as explained in a previous chapter.

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service.ts#

A module must have a main service. It's created in the service.ts file at the root of your module directory as explained in a previous chapter.

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Other Directories#

The following directories are optional and their content are explained more in the following chapters:

• models: Holds the data models representing tables in the database.
• migrations: Holds the migration files used to reflect changes on the database.
• loaders: Holds the scripts to run on the Medusa application's start-up.

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