How do I get randomly generated userID from .push() in Firebase

Question

Currently I am adding my user class to a firebase database using this code:

public void onClick(View v)
        {

            Firebase ref = new Firebase("https://xxxxxx.firebaseio.com/");

            createAccount(emailString, passwordString);

            User user = new User ();
            user.setEmail(emailString);
            user.setPassword(passwordString);

            ref.child("users").push().setValue(user);



        }

Right now, since I use the .push() method, I am creating a unique ID in my database. How do I pull that unique ID? I looked at this tutorial but I don't understand how to implement it.

I think you are trying to combine android with javascript. check out docs : https://firebase.google.com/docs/ — Harish Kamboj, Jan 25 '17 at 18:11

score 3 · Accepted Answer · answered Jan 25 '17 at 18:34

DatabaseReference dbRef = FirebaseDatabase.getInstance().getReference(); //get the reference to your database
User user = new User ();
user.setEmail(emailString);
user.setPassword(passwordString);
String yourKey = dbRef.child("users").push().getKey(); //get the key
dbRef.child("users").child(yourKey).setValue(user); //insert user in that node

But if you want to access that node (yourKey) later, you will need to store it in some sort of permanent storage like a database on your web server.

This did exactly what I needed. Thank you! – user955857 Jan 25 '17 at 18:48 — user955857, Jan 25 '17 at 18:48

score 2 · Answer 2 · answered Jan 25 '17 at 18:19

2

Great example of how to get key check these docs out helped me a lot. Firebase Docs

// Get a key for a new Post. 

var newPostKey = firebase.database().ref().child('posts').push().key;

answered Jan 25 '17 at 18:19

edumas000

272
1
3
10

How do I get randomly generated userID from .push() in Firebase

2 Answers2