# registerAvailableCampaignsHandler

Receive a callback whenever the SDK gets back the current list of available [NamiCampaign](/sdk-reference/namicampaignmanager/namicampaign.md) objects for the device. This list is personalized for the device by the Nami backend server based upon campaign filtering and priority rules.

{% tabs %}
{% tab title="Swift" %}

```swift
NamiCampaignManager.registerAvailableCampaignsHandler { campaigns in
}
```

{% endtab %}

{% tab title="Kotlin" %}

```kotlin
NamiCampaignManager.registerAvailableCampaignsHandler() { availableCampaigns ->
  
}
```

{% endtab %}

{% tab title="Flutter" %}

```dart
import 'package:nami_flutter/campaign/nami_campaign.dart';
import 'package:nami_flutter/campaign/nami_campaign_manager.dart';
List<NamiCampaign> _campaigns = [];

NamiCampaignManager.registerAvailableCampaignsHandler().listen((list) {
  setState(() {
    _campaigns = list;
  });
});
```

{% endtab %}

{% tab title="React Native" %}

```c
import {NamiCampaignManager, NamiCampaign} from 'react-native-nami-sdk';

useEffect(() => {
  const subscriptionRemover =
    NamiCampaignManager.registerAvailableCampaignsHandler(
      (availableCampaigns) => {
        console.log('availableCampaigns', availableCampaigns);
        setCampaigns(availableCampaigns);
      },
    );
  return () => {
    subscriptionRemover();
  };
}, []);
```

{% endtab %}
{% endtabs %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.namiml.com/sdk-reference/namicampaignmanager/registeravailablecampaignshandler.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.