<BlockSwitcher>
<Block name="Java">

```java
QueryOptions queryOptions = null;
try {
    queryOptions = Where.identifier(Post.class, "123");
} catch (AmplifyException e) {
    Log.e("MyAmplifyApp", "Failed to construct QueryOptions with provided values for Where.identifier", e);
}

if (queryOptions != null) {
    Amplify.DataStore.query(Post.class, queryOptions,
        match -> {
            if (match.hasNext()) {
                Post post = match.next();
                Amplify.DataStore.delete(post,
                    deleted -> Log.i("MyAmplifyApp", "Post deleted."),
                    failure -> Log.e("MyAmplifyApp", "Delete failed.", failure)
                );
            }
        },
        failure -> Log.e("MyAmplifyApp", "Query failed.", failure)
    );
}
```

</Block>
<Block name="Kotlin - Callbacks">

```kotlin
Amplify.DataStore.query(Post::class.java, Where.identifier(Post::class.java, "123"),
    {
        if (it.hasNext()) {
            val post = it.next()
            Amplify.DataStore.delete(post,
                { Log.i("MyAmplifyApp", "Post deleted") },
                { Log.e("MyAmplifyApp", "Delete failed") }
            )
        }
    },
    { Log.e("MyAmplifyApp", "Query failed", it) }
)
```

</Block>
<Block name="Kotlin - Coroutines">

```kotlin
Amplify.DataStore.query(Post::class, Where.identifier(Post::class.java, "123"))
    .catch { Log.e("MyAmplifyApp", "Query failed", it) }
    .onEach { Amplify.DataStore.delete(it) }
    .catch { Log.e("MyAmplifyApp", "Delete failed", it) }
    .collect { Log.i("MyAmplifyApp", "Post deleted") }
```

</Block>
<Block name="RxJava">

```java
QueryOptions queryOptions = null;
try {
    queryOptions = Where.identifier(Post.class, "123");
} catch (AmplifyException e) {
    Log.e("MyAmplifyApp", "Failed to construct QueryOptions with provided values for Where.identifier", e);
}

if (queryOptions != null) {
    RxAmplify.DataStore.query(Post.class, queryOptions)
        .flatMapCompletable(RxAmplify.DataStore::delete)
        .subscribe(
            () -> Log.i("MyAmplifyApp", "Post deleted."),
            failure -> Log.e("MyAmplifyApp", "Delete failed.", failure)
        );
} 
```

</Block>
</BlockSwitcher>