Deleting a parent document with the SDK does not mean deleting the tree below it. A missing parent and readable child documents can both be real at the same time. Disclosure: This AI-assisted technica
Originally published at cengal.app. Changing theme should not require rebuilding an entire preferences map. But the shape of a Firestore update determines whether you replace that map or update one le
If you add a sort to a Firestore query and a document disappears, the first thing to check is surprisingly simple: does that document contain the field you're sorting by? Examples use synthetic data.
An empty query result and a failed query are different problems. Before changing indexes, permissions, or data, establish which one you have. This checklist covers Firestore’s Core query API, with exa
