Type Alias BatchCallback<D>

BatchCallback: (
batchDocs: firestore.QueryDocumentSnapshot<D>[],
batchIndex: number,
) => void | Promise<void>

A function that takes batch doc snapshots and the 0-based batch index as its arguments.

Type Parameters

D = firestore.DocumentData

Type declaration

- (
  batchDocs: firestore.QueryDocumentSnapshot<D>[],
  batchIndex: number,
  ): void | Promise<void>
- Parameters
  - batchDocs: firestore.QueryDocumentSnapshot<D>[]
  - batchIndex: number
  Returns void | Promise<void>