# Users

## Add

`client.express.users.add(stringexpressCustomerID, UserAddParamsbody, RequestOptionsoptions?): UserAddResponse`

**post** `/v1/express/{expressCustomerId}/users`

Associates an existing user with a customer, granting them access to customer-specific resources and studies.

### Parameters

- `expressCustomerID: string`

  Unique Express customer identifier. Format: cus_{32-hex-chars}

- `body: UserAddParams`

  - `userId: string`

    User ID to add to the Express customer. Format: usr_{32-hex-chars}

### Returns

- `UserAddResponse`

  Standard success response with optional message

  - `success: boolean`

  - `message?: string`

### Example

```typescript
import Avara from 'avara';

const client = new Avara({
  apiKey: process.env['AVARA_API_KEY'], // This is the default and can be omitted
});

const response = await client.express.users.add('cus_1234567890abcdef1234567890abcdef', {
  userId: 'usr_1234567890abcdef1234567890abcdef',
});

console.log(response.success);
```

## Remove

`client.express.users.remove(stringexpressCustomerID, UserRemoveParamsbody, RequestOptionsoptions?): UserRemoveResponse`

**delete** `/v1/express/{expressCustomerId}/users`

Removes a user's association with a customer, revoking their access to customer-specific resources. The user account remains active but is no longer linked to this customer.

### Parameters

- `expressCustomerID: string`

  Unique Express customer identifier. Format: cus_{32-hex-chars}

- `body: UserRemoveParams`

  - `userId: string`

    User ID to remove from the Express customer. Format: usr_{32-hex-chars}

### Returns

- `UserRemoveResponse`

  Standard success response with optional message

  - `success: boolean`

  - `message?: string`

### Example

```typescript
import Avara from 'avara';

const client = new Avara({
  apiKey: process.env['AVARA_API_KEY'], // This is the default and can be omitted
});

const user = await client.express.users.remove('cus_1234567890abcdef1234567890abcdef', {
  userId: 'usr_1234567890abcdef1234567890abcdef',
});

console.log(user.success);
```