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PersistentObservable

Add local persistence to any RxSwift observable

Usage

If we have an observable that loads some Codable data, such as a network API call to some service, we can locally cache the last returned result on disk by calling .persist(key) on the Observable.

let account = apiClient.loadAccount()
                       .persist("some_unique_key_for_this_data")

The latest value of the observable is cached and serialized to disk when the app goes to a background state, and loaded from disk or memory at observable creation.

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To be determined

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Add local persistence to any RxSwift observable

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