Instance Method


Ends a batch of index updates and stores the specified state information.


func endBatch(withClientState clientState: Data, completionHandler: ((Error?) -> Void)? = nil)



Up to 250 bytes of information that can help you recover from a crash and resume indexing.


The block that’s called after the client state has been stored.

The block receives the following parameter:


If an error occurred, this parameter holds an error object that explains the error. Otherwise, the value of this parameter is nil.

See Also

Batching Index Updates

func beginBatch()

Begins a batch of updates to an index.

func fetchLastClientState(completionHandler: (Data?, Error?) -> Void)

Gets the app’s most recently stored state information.

Beta Software

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