Where to add Firebase Database Reference in iOS Obj-C

Question

I\'m setting up a realtime database through Firebase and am confused where to put the following line of code:

self.ref = [[FIRDatabase database] reference];
         


        

Answer 1

To address this, I added the following line under (at)interface in my App Delegate:

@property FIRDatabaseReference *ref;

Then I could add the following under didFinishLaunchingWithOptions:

self.ref = [[FIRDatabase database] reference];