FirebaseFirestore Framework Reference

ServerTimestampBehavior

enum ServerTimestampBehavior : Int, @unchecked Sendable

Controls the return value for server timestamps that have not yet been set to their final value.

• none

  Return NSNull for FieldValue.serverTimestamp() fields that have not yet been set to their final value.

  Declaration

  Swift

  case none = 0

• estimate

  Return a local estimates for FieldValue.serverTimestamp() fields that have not yet been set to their final value. This estimate will likely differ from the final value and may cause these pending values to change once the server result becomes available.

  Declaration

  Swift

  case estimate = 1

• previous

  Return the previous value for FieldValue.serverTimestamp() fields that have not yet been set to their final value.

  Declaration

  Swift

  case previous = 2