Structures

The following structures are available globally.

  • CompactBlockProcessor notification userInfo object keys. check Notification.Name extensions for more details.

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    Declaration

    Swift

    public struct CompactBlockProcessorNotificationKey

  • Represents the wallet’s birthday which can be thought of as a checkpoint at the earliest moment in history where transactions related to this wallet could exist. Ideally, this would correspond to the latest block height at the time the wallet key was created. Worst case, the height of Sapling activation could be used (280000).

    Knowing a wallet’s birthday can significantly reduce the amount of data that it needs to download because none of the data before that height needs to be scanned for transactions. However, we do need the Sapling tree data in order to construct valid transactions from that point forward. This birthday contains that tree data, allowing us to avoid downloading all the compact blocks required in order to generate it.

    New wallets can ignore any blocks created before their birthday.

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    Declaration

    Swift

    public struct WalletBirthday

    Parameters

    height

    the height at the time the wallet was born
    hash

    the block hash corresponding to the given height
    time

    the time the wallet was born, in seconds
    tree

    the sapling tree corresponding to the given height. This takes around 15 minutes of processing to generate from scratch because all blocks since activation need to be considered. So when it is calculated in advance it can save the user a lot of time.

  • Represents a lightwallet instance endpoint to connect to

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    Declaration

    Swift

    public struct LightWalletEndpoint

  • Convenience provider for a data db and cache db resources.

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    Declaration

    Swift

    public struct DefaultResourceProvider : ResourceProvider

  • A Zcash compact block to store on cache DB

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    Declaration

    Swift

    public struct ZcashCompactBlock : CompactBlockEntity
    extension ZcashCompactBlock: Encodable
    extension ZcashCompactBlock: Equatable
    extension ZcashCompactBlock: Hashable

  • Undocumented

    Declaration

    Swift

    public struct ZcashRustBackendWeldingConstants