How do the NetworkManager and StorageManager components interact in the system?

In iOS systems, the components NetworkManager and StorageManager typically interact to facilitate data loading, caching, and storage.

• NetworkManager is responsible for executing network requests and retrieving data from the server.
• StorageManager handles local data storage — in databases, the file system, or cache.

The interaction occurs as follows:

1. NetworkManager fetches data from the network.
2. After successfully obtaining the data, it passes it to StorageManager for saving.
3. StorageManager saves the data so that it can be used from the local copy during the next request, reducing network load.

For example, when loading a list of news:

networkManager.fetchNews { newsItems in
    storageManager.save(newsItems)
    completion(newsItems)
}

Thus, NetworkManager and StorageManager work together to ensure efficient data retrieval and storage, improving performance and user experience.