```swift
Amplify.DataStore.query(Post.self) { result in
switch result {
case .success(let posts):
print("Posts retrieved successfully: \(posts)")
case .failure(let error):
print("Error retrieving posts \(error)")
}
}
```
```swift
let querySink = Amplify.DataStore.query(Post.self).sink {
if case let .failure(error) = $0 {
print("Error retrieving posts \(error)")
}
}
receiveValue: { posts in
print("Posts retrieved successfully: \(posts)")
}
```