CODEWITHSUNDEEP
androidfirebasefirebase-realtime-database
mike-gallego
mike-gallego

Reputation: 724

Retrieve data efficiently using Firebase database in Android

My app currently lets the user register his/her name, email, username, and password into the Firebase database. It creates a child: Users, which is then split into unique id's containing all the information for each id. Ex: Users -> [uniqueID] -> name, email....

I need help finding a way so that when the user enters their email and logs in, it will try to match it with any of the emails in the user's section of the database to see if it is valid. so like 

if (listOfEmails.contains(emailLogin.getText().toString()) {

}

Upvotes: 0

Views: 81

Answers (1)

Alex Mamo
Alex Mamo

Reputation: 139029

The easiest way to solve this is to use Firebase Authentication.

Than to verify if a user exists, create a new node in your Firebase database named usersEmail. Every time a user wants to sign-in, add his/her email address there. Your database should look like this:

Firebase-root
    |
    ---- usersEmail
       |
       ---- userId1: "[email protected]"
       |
       ---- userId2: "[email protected]"
       |
       ---- userId3: "[email protected]"
       |
       //and so on

Hope it helps.

Upvotes: 1

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