FirebaseStorage Framework Reference

Type Definitions

The following type definitions are available globally.

• StorageHandle

  NSString typedef representing a task listener handle.

  Declaration

  Swift

  typealias StorageHandle = NSString

• StorageVoidDataError

  Block typedef typically used when downloading data.

  Declaration

  Swift

  typealias StorageVoidDataError = (Data?, Error?) -> Void

  Parameters

  data	The data returned by the download, or nil if no data available or download failed.
  error	The error describing failure, if one occurred.

• StorageVoidError

  Block typedef typically used when performing “binary” async operations such as delete, where the operation either succeeds without an error or fails with an error.

  Declaration

  Swift

  typealias StorageVoidError = (Error?) -> Void

  Parameters

  error

  The error describing failure, if one occurred.

• StorageVoidMetadata

  Block typedef typically used when retrieving metadata.

  Declaration

  Swift

  typealias StorageVoidMetadata = (FIRStorageMetadata?) -> Void

  Parameters

  metadata

  The metadata returned by the operation, if metadata exists.

• StorageVoidMetadataError

  Block typedef typically used when retrieving metadata with the possibility of an error.

  Declaration

  Swift

  typealias StorageVoidMetadataError = (FIRStorageMetadata?, Error?) -> Void

  Parameters

  metadata	The metadata returned by the operation, if metadata exists.
  error	The error describing failure, if one occurred.

• StorageVoidSnapshot

  Block typedef typically used to asynchronously return a storage task snapshot.

  Declaration

  Swift

  typealias StorageVoidSnapshot = (FIRStorageTaskSnapshot) -> Void

  Parameters

  snapshot

  The returned task snapshot.

• StorageVoidURLError

  Block typedef typically used when retrieving a download URL.

  Declaration

  Swift

  typealias StorageVoidURLError = (URL?, Error?) -> Void

  Parameters

  URL	The download URL associated with the operation.
  error	The error describing failure, if one occurred.