FirebaseFirestore Framework Reference

Type Definitions

The following type definitions are available globally.

• FIRDocumentSnapshotBlock

  A block type used to handle snapshot updates.

  Declaration

  Swift

  typealias FIRDocumentSnapshotBlock = (FIRDocumentSnapshot?, Error?) -> Void

• FIRQuerySnapshotBlock

  A block type used to handle failable snapshot method callbacks.

  Declaration

  Swift

  typealias FIRQuerySnapshotBlock = (FIRQuerySnapshot?, Error?) -> Void