Always have an entityId available in the pre-save callback instead of being undefined when creating a doc.

[Nicholas-Fisher]

So right now the entityId passed into the pre-save call back is "string Id of the entity or undefined if new".

Rather than it being undefined, would it be possible to pre-generate the document ID that will be used when saving the document so that we always have this available in the carious callback functions? Even on document creation?

Firebase lets you peak at the ID that it'll use to save the document when you create a Document object using addDoc. Here's an example from https://firebase.google.com/docs/firestore/manage-data/add-data:

import { collection, addDoc } from "firebase/firestore";

// Add a new document with a generated id.
const docRef = await addDoc(collection(db, "cities"), {
name: "Tokyo",
country: "Japan"
});
console.log("Document written with ID: ", docRef.id);

docRef.id can be surfaced as the entityId even before a document is saved to firestore. This would be great to have in the callbacks!

[fgatti675]

Hi @Nicholas-Fisher
This is already implemented in version 2.0, currently in alpha :)