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);
         


        

Answer 1

let's say your db look like

 "BookShelf" : {
    "book1" : {
      "bookName" : "book1_push"
       ...
     }

your code to be (don't use push(), push() generate a random key)

DatabaseReference mDatabase = FirebaseDatabase.getInstance().getReference();
Book data = new Book();
mDatabase.child("BookShelf").child("book1").setValue(data);