[cloud_firestore] WriteBatch on potentially non existing documents.

[quentinleguennec]

Hi,

I need to mark some documents by setting a flag on them. Since its a lot of them I want to use a BatchWrite. But some of those documents may have been deleted from other sources. Currently the whole WriteBatch fails if any of the documents is missing (returning [cloud_firestore/not-found] Some requested document was not found.).

Is it possible for the WriteBatch to ignore non existing documents instead of throwing an exception? I don't want to first fetch all those documents to se if they exist as it could be a lot of them.