Detecting when a document does not exists in Firestore

[Gegbee]

Hi, I have been using this plugin for a bit now and have noticed there is no explicitly typed-out way to find out if a document exists in Firestore. However, I noticed that when a document does not exist, the response code is 404 in the _on_request_completed function. I was wondering if there was a way I could take this code and assert to return a value letting me know whether the document exists or not?

[fenix-hub]

Error 404 is itself the way to know if a document exists or not.
If a document does not exist on a .get() request, some signals will be emitted:

• error(body_error : Dictionary) and task_finished(body_error : Dictionary) from a FirestoreTask
• error(body_error : Dictionary) from a Firestore
  Just connect those signals to a function, and if you get the error concerning a document it does not exist.

If you actually want to only check the existence of a document without retrieving its data, there is no way I'm aware of.
The only way would be to create a Document that stores the ids of all the other documents you are using, and then get the content of that document to check if an id exists.

[Gegbee]

Ah, that is what I was looking for. Thanks so much!