CacheFetchPolicy

(default) returns the cached data if available (even if stale). If not available, fetches up-to-date data. If cached data is stale, it initiates a fetch in the background.

Returns the cached data if available and not stale. If not available or stale, it fetches up-to-date data. Note that this won't return stale data even if fetch request fails

Ignore whether the cache has a value or not and fetch the most up-to-date data. This will return an error if the fetch request fails

Returns values from the cache, or throws an error if not available. It won't initiate a fetch.