> For the complete documentation index, see [llms.txt](https://docs.adjump.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adjump.io/react-native/sdk-initialization.md).

# SDK Initialization

### Add Native Module Files

Download the following files and add them to your Android app's module directory:

{% file src="/files/StoE6TZWWe5Nb0LjPHyv" %}

{% file src="/files/RRtyOjT7rOaiXJqBc7wN" %}

### Register the Module

In your `MainApplication` file, locate the `getPackages()` method and register the Adjump SDK module by adding the following line:

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

```java
@Override
protected List<ReactPackage> getPackages() {
    // Get the list of packages
    List<ReactPackage> packages = new PackageList(this).getPackages();
    
    // Add the Adjump SDK package to the list
    packages.add(new AdjumpSdkPackage());
    
    return packages;
}
```

{% endtab %}

{% tab title="Kotlin" %}

```kotlin
override fun getPackages(): List<ReactPackage> {
    // Get the list of packages
    val packages = PackageList(this).packages
    
    // Add the Adjump SDK package to the list
    packages.add(AdjumpSdkPackage())
    
    return packages
}

```

{% endtab %}
{% endtabs %}

### **Initialize AdJump SDK**: <a href="#initialize-adjump-sdk" id="initialize-adjump-sdk"></a>

```javascript
adjump.initialize(accountId, appId, userId, 
  (message) => {
    console.log(message); // You can optionally log the success message
  }, 
  (error) => {
    console.error(error);
  }
);

```

The parameters to this call are as follows:

| Parameter | Description                                              |
| --------- | -------------------------------------------------------- |
| accountId | Your Adjump account id.                                  |
| appId     | Your Adjump application id.                              |
| userId    | The registered User Id associated with your application. |

### Open the Adjump offerwall

To initiate the OfferWall, simply invoke the `launchOfferWall`method.

```javascript
adjump.launchOfferWall((successMessage) => {
  Alert.alert("Success", successMessage);
}, (errorMessage) => {
  Alert.alert("Error", errorMessage);
});


```