WalletCompletionBlock

typedef void(^AuthCompletionBlock)(ZKWallet * _Nullable wallet, NSError * _Nullable error)

The type of block invoked after attempting to create, unlock or recover wallet. Provided as a callback to createWallet, unlockWallet and recoverWallet methods on ZKUser instance.

Check if error is not nil to see if there was an issue authenticating. See Handling Errors for details.