How to retrieve data from Firebase?

I am trying to retrieve every object stored in Firebase. Not sure how to go ahead. The following is my code and snap.value printed. I need to retrieve String “cbc” and “cp24” as well as values for datasaved and url. “cbc” and “cp24” are names I entered when saving.

Ref_UsersBase.observeEventType(.Value, withBlock: { snapshot in

if let snapshots = snapshot.children.allObjects as? [FDataSnapshot] {

        for snap in snapshots {

            print(snap.value)


        }              
    }
})

{
// Here is snap.value printed:

{
“-KGOzXm1lLtyS23cOR-G” = {
cp24 = {
datesaved = “Apr 27, 2016”;
url = “https://www.google.ca/search?site=&source=hp&ei=H0chV6pfhKeOBJChpqAN&q=cp24+weather&oq=&gs_l=mobile-gws-hp.1.0.41l2.0.0.0.13343.1.1.0.1.1.0.368.368.3-1.1.0…0…1…64.mobile-gws-hp…0.1.6.2.JC6OI95nuYc”;
};
};
“-KGOznhRN0J2OVlIogZ0” = {
cbc = {
datesaved = “Apr 27, 2016”;
url = “http://www.cbc.ca/beta/news/canada/toronto”;
};
};
}