Setting custom key when pushing new data to firebase database

Question

Well, I am new to Firebase and I want to have my own keys while pushing new data to database.

Problem:

FireBase.push().setValue(mapped_values);

This gives structure like below:

How can I create my own custom key there? Such as username or something.

Answer 1

Calling push() will generate a key for you.

If instead you use child(), you can determine they key/path yourself.

ref.child("Victor").setValue("setting custom key when pushing new data to firebase database");