fetchLastClientState(completionHandler:)

Fetches the app’s most recent client state information asynchronously.

Declaration

func fetchLastClientState(completionHandler: @escaping  @Sendable (Data?, (any Error)?) -> Void)

func fetchLastClientState() async throws -> Data

Parameters

completionHandler:
The block to call when the request has been journaled by the index, which means that the index makes a note that it has to perform this operation. Note that the request may not have completed.
The block receives the following parameter:
error
If an error occurred, this parameter holds an error object that explains the error. Otherwise, the value of this parameter is nil.

Mentioned in

Adding your app’s content to Spotlight indexes

Discussion

important:

You can call this method from synchronous code using a completion handler, as shown on this page, or you can call it as an asynchronous method that has the following declaration:

func fetchLastClientState() async throws -> Data

For information about concurrency and asynchronous code in Swift, see Calling Objective-C APIs Asynchronously.