Retrieving Data using Firebase Swift

Question

I\'m using Firebase for my Swift iOS application. I found the retrieving data tutorial on Firebase\'s guide a bit confusing and I am not sure why when I try to access existi

Answer 1

Your FDataSnapshot does not contain a child firstName. It only contains a child 1.

This is because you're performing a query and then asking for a value. Since a query can have many results, it returns a list of results. Even when there's only one result, it is still a list of 1.

The solution is to loop over the children:

usersRef.queryOrderedByChild("fbid")
        .queryEqualToValue(userId)
        .observeSingleEventOfType(.Value, withBlock:{ snapshot in
            for child in snapshot.children {
                print("Loading group \(child.key!)") 
            }
})