# User & Attributes

### Managing User Data

The `NetmeraUser` class allows you to send structured information about your application's users to Netmera. The ideal time to update user attributes is **right after the user logs into your application.**

{% hint style="warning" %}
**User ID Management**

For optimal performance and data integrity:

* **Update user information at login**: It’s crucial to update the user information as soon as the user logs in.
* **Unique userId**: Ensure that each user has a unique `userId`. Assigning the same `userId` to multiple users leads to data inconsistencies and is not recommended.
  {% endhint %}

### Updating User Information

After login, create a `NetmeraUser` object, set the attributes, and call `Netmera.updateUser`

```typescript
import { NetmeraPlugin, NetmeraUser } from '@awesome-cordova-plugins/netmera/ngx'

const user = new NetmeraUser()

user.userId = "the_greatest"
user.email = "clay@champion.com"
user.msisdn = "001XXXXXXXXX"
user.name = "Netmera"
user.surname = "Notification"
user.gender = NetmeraUser.GENDER_MALE
user.externalSegments = ["sports", "box"]
user.dateOfBirth = 743069748000
user.maritalStatus = NetmeraUser.MARITAL_STATUS_SINGLE
user.country = "USA"
user.state = "Arizona"
user.city = "Scottsdale"
user.district = "Old Town Scottsdale"
user.favoriteTeam = "My Team"
user.language = "English"
user.industry = "Sports"
user.occupation = "Professional Boxer"

// Update the user profile in Netmera
this.netmera.updateUser(user)
```

{% hint style="warning" %}
**Important:**

* `userId` **cannot** be removed.
* You should send a **single** user update request at a time.
  {% endhint %}

### Creating Custom Profile Attributes 

#### Step 1: Navigate to the Developers section

Custom profile attributes must be created and configured in the Netmera Panel before they can be used in the application. 

* Go to **Panel** > **Developers > Profile Attributes > Create New Attribute.**

#### Step 2: Fill in Attribute Details

Define the following information:

* **Name**: The unique identifier for the attribute.
* **Label**: A user-friendly name for the attribute.
* **Description**: A brief description of the attribute.
* **Data Type**: Choose the appropriate data type for the attribute.
* **Is Array**: Define whether the attribute can hold multiple values.

#### Step 3: Save the Attribute

After clicking **Save**, the custom attribute will be available for assignment to your users.

#### Step 4: Generated Code for Custom Attributes

Once the attribute is defined in the Netmera Panel, the generated code can be found at the bottom of the **Profile Attribute** page, under the **Generate Code** section. This code must be added to your Netmera Panel under **Profile Attributes > User Class**.

{% hint style="info" %}
**Private Information Considerations**

Under the **KVKK** law, the sharing of private user data is prohibited. To ensure compliance:

* **Private Information Flag**: When defining profile attributes or events, the **Private Information** feature must be selected to ensure that these attributes are not sent to the backend by the Netmera SDK.
* **SDK Enforcement**: The SDK checks for the **Private Information** flag during the `(Netmera.update(user))` call. If the flag is set, the request will not be sent to the backend.
  {% endhint %}

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