要在Firestore DB中使用Firebase UID或令牌？

Question

I understand that if I was using my own app server, I should use Token ID as a reference to the user.

If I am using Firestore DB, and to refer to that user's document are based on the UID - will that cause any issue?

For example, with a database structure like this: Main -> xkljVWSjaDFAXsdSFkjsdf (UID) -> .....etc

Or would it be better to use the Token ID as a reference?

Is this the "correct" way?

Answer 1

I'm already used firebase realtime database on my many projects.

You can store your users data via this structure:

Main -> Users -> xkljVWSjaDFAXsdSFkjsdf (UID) -> ...

And you can access those data easily and your UID will be always unique .

String UID = FirebaseAuth.getInstance().getCurrentUser().getUid();

There will be no issue by using UID.

Refarence Firebase Data Modele

Happy Programming.

Answer 2

Or would it be better to use the Token ID as a reference?

It won't. Using the uid is the best practice when it comes to Firebase.

You can get the uid using the following line of code:

String uid = FirebaseAuth.getInstance().getCurrentUser().getUid();

The token id can be different while the uid is always the same.