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medusa-store/www/apps/resources/app/commerce-modules/customer/page.mdx
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import { CodeTabs, CodeTab } from "docs-ui"
export const metadata = {
title: `Customer Module`,
}
# {metadata.title}
The Customer Module is the `@medusajs/customer` NPM package that provides customer-related features in your Medusa and Node.js applications.
## Features
### Customer Management
With the Customer Module, store and manage customers in your store.
```ts
const customer = await customerModuleService.create({
first_name: "Peter",
last_name: "Hayes",
email: "peter.hayes@example.com",
})
```
### Customer Organization
You can organize customers into groups. This has a lot of benefits and supports more use cases, such as provide discounts for specific customer groups using the Promotion Module.
```ts
const customerGroup =
await customerModuleService.createCustomerGroup({
name: "VIP",
})
await customerModuleService.addCustomerToGroup({
customer_id: "cus_123",
customer_group_id: customerGroup.id,
})
```
---
## Configure Customer Module
After installing the `@medusajs/customer` package in your Medusa application, add it to the `modules` object in `medusa-config.js`:
```js title="medusa-config.js"
const modules = {
// ...
customer: {
resolve: "@medusajs/customer",
},
}
```
---
## How to Use Customer Module's Service
You can use the Customer Module's main service by resolving from the Medusa container the resource `ModuleRegistrationName.CUSTOMER` imported from `@medusajs/modules-sdk`.
For example:
<CodeTabs groupId="resource-type">
<CodeTab label="API Route" value="api-route">
```ts title="src/api/store/custom/route.ts"
import { MedusaRequest, MedusaResponse } from "@medusajs/medusa"
import { ICustomerModuleService } from "@medusajs/types"
import { ModuleRegistrationName } from "@medusajs/modules-sdk"
export async function GET(
request: MedusaRequest,
res: MedusaResponse
) {
const customerModuleService: ICustomerModuleService =
request.scope.resolve(ModuleRegistrationName.CUSTOMER)
res.json({
customers: await customerModuleService.list(),
})
}
```
</CodeTab>
<CodeTab label="Subscriber" value="subscribers">
```ts title="src/subscribers/custom-handler.ts"
import { SubscriberArgs } from "@medusajs/medusa"
import { ICustomerModuleService } from "@medusajs/types"
import { ModuleRegistrationName } from "@medusajs/modules-sdk"
export default async function subscriberHandler({
container,
}: SubscriberArgs) {
const customerModuleService: ICustomerModuleService =
container.resolve(ModuleRegistrationName.CUSTOMER)
const customers = await customerModuleService.list()
}
```
</CodeTab>
<CodeTab label="Workflow Step" value="workflow-step">
```ts title="src/workflows/hello-world/step1.ts"
import { createStep } from "@medusajs/workflows-sdk"
import { ICustomerModuleService } from "@medusajs/types"
import { ModuleRegistrationName } from "@medusajs/modules-sdk"
const step1 = createStep("step-1", async (_, context) => {
const customerModuleService: ICustomerModuleService =
context.container.resolve(ModuleRegistrationName.PRODUCT)
const customers = await customerModuleService.list()
})
```
</CodeTab>
</CodeTabs>