Example:
Firebase provides offline capabilities through its Realtime Database and Firestore. These features allow applications to remain responsive even when network connectivity is lost. Firebase caches a copy of the cloud data onto the device, enabling read and write operations to be performed locally. Once the connection is reestablished, changes are synchronized with the server.
For instance, in an Android application using Firestore, you can enable offline persistence by calling Firestore.getInstance().setPersistenceEnabled(true); at startup. This allows for local caching of documents. When writing or reading data, use regular Firestore methods like documentReference.set(data) or documentReference.get(). If offline, these will operate on local cache and sync when online again.