What is difference between IdToken() and Uid() in firebase

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votes

what is the difference between Idtoken() and Uid in firebase? (regarding Google Sign in)
which one should I use in firebase realtime database to store data according to user identity.
I am using android studio with java.

1
androidfirebasefirebase-realtime-database
It's unclear to me what you're looking at. Please edit the question to show the code of the methods you are comparing, or links to the API documentation. – Doug Stevenson

1 Answers

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They are exactly the same. auth.uid is provided for backwards compatibility (auth.token didn't used to exist in the Security Rules) and ease-of-use: sub is not a commonly understood term for an ID, whereas uid is a bit easier to understand and you don't have to dive into the token contents.