Install Product Module in Medusa

In this document, you'll learn how to install the Product Module using NPM in the Medusa backend.

Step 1: Install Module

To install the Product Module, run the following command in the root directory of the Medusa backend:

• npm
• Yarn
• pnpm

npm install @medusajs/product

yarn add @medusajs/product

pnpm add @medusajs/product

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Step 2: Add Module to Configurations

In medusa-config.js, add the Product Module to the exported object under the modules property:

medusa-config.js

module.exports = {
  // ...
  modules: {
    // ...
    productService: {
      resolve: "@medusajs/product",
    },
  },
}

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Step 3: Run Migrations

Run the following command to reflect schema changes into your database:

npx medusa migrations run

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Use the Module

You can now start using the module's ProductModuleService by resolving it through dependency injection.

For example:

• API Route
• Subscribers
• Service

import type { 
  MedusaRequest, 
  MedusaResponse
} from "@medusajs/medusa";
import { 
  ProductModuleService
} from "@medusajs/product"

export async function GET(
  req: MedusaRequest, 
  res: MedusaResponse
) {
  const productModuleService: ProductModuleService = 
    req.scope.resolve(
      "productModuleService"
    )

  return res.json({
    products: productModuleService.list()
  })
}

import { 
  type SubscriberConfig, 
  type SubscriberArgs,
  ProductService,
} from "@medusajs/medusa"
import { 
  ProductModuleService
} from "@medusajs/product"

export default async function handleListProducts({ 
  data, eventName, container, pluginOptions 
}: SubscriberArgs<Customer>) {
  const productModuleService: ProductModuleService = 
    container.resolve(
      "productModuleService"
    )

  console.log(await productModuleService.list())
}

export const config: SubscriberConfig = {
  event: ProductService.Events.CREATED,
  context: {
    subscriberId: "list-products"
  }
}

import { TransactionBaseService } from "@medusajs/medusa"
import { 
  ProductModuleService
} from "@medusajs/product"

class HelloService extends TransactionBaseService {
  private productModuleService: ProductModuleService

  constructor(container) {
    super(container)
    this.productModuleService = container.productModuleService
  }

  await listProducts() {
    return await this.productModuleService.list()
  }
}

export default HelloService

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Start Development

You can refer to the Example Usages documentation page for examples of using the Product Module.

You can also refer to the Module Interface Reference for a detailed reference on all available methods.