# Using LiveData

Livebox supports converting the result observable to another type by using a custom [adapter](https://sserra.gitbook.io/livebox/livebox-components/adapters). There are two built-in adapters that can be used, however you don't need to call the manually, instead use the auxiliary methods `.asLiveData()` and `scoped()` .

```java
// Create validators
Validator<UsersRes> ageValidator = AgeValidator.create(TimeUnit.MINUTES.toMillis(2));
Validator<UsersRes> persistentDiskValidator = (key, item) -> Objects.nonNull(item) && !item.getItems().isEmpty();
​
// Builds an instance of Livebox using LiveboxBuilder class.
Livebox<UsersRes, Users> usersBox = new LiveboxBuilder<UsersRes, Users>()
                    .withKey("get_users")
                    .fetch(api::getUserList, UsersRes.class)
                    .addSource(Sources.MEMORY_LRU, ageValidator)
                    .addSource(Sources.DISK_PERSISTENT, persistentDiskValidator)
                    .addConverter(UsersRes.class, usersRes -> Optional.of(Users.fromUsersRes(usersRes)))
                    .retryOnFailure()
                    .build();
                    
usersBox.asLiveData().observe(this, users -> Log.d(TAG, "UsersRes: " + users));
```

In the above example we call `.asLiveData()` that returns a LiveData instance.

{% hint style="info" %}
Calling `.asLiveData()` is the same as doing the following:`usersBox.as(new LiveDataAdapter<>()).observe();`
{% endhint %}