Firebase with Swift ambiguous use of observeEventType

Question

I've been pulling my hair out because of this. Going to all the pages with related incidents and multiple tutorials I find nothing wrong with my code here, but somehow it only doesn't fail if I print out the values (which works) or assign them as! NSArray which then gives me an empty array.

a print of snapshot.value shows

( friend1, 
  friend2, 
  friend3 
)

I've tried snapshot.value.values ... no dice. I've tried playing with the unwrapping ... no dice. and this is my final attempt:

    friendsList = [String]()

    ref.observeSingleEventOfType(.Value) { (snapshot) -> Void in
        if snapshot.value is NSNull {

        } else {
            for child in snapshot {
                self.friendsList.append(child.value)
            }
        }
    }

which gives me the ambiguous thing again.

Answer 1

Just some coding errors

Remove: (snapshot)-> Void

Change: child in snapshot as snapshot is not a sequence, whereas snapshot.children is

I assume you want to store the friends name as a string and name is a key in your structure. So change self.friendsList.append(child.value) to

let name = child.value["name"] as? String
friendsList.append(name!)

Here's the corrected code:

var friendsList = [String]()

ref.observeSingleEventOfType(.Value, withBlock: { snapshot in

    if snapshot.value is NSNull {

    } else {
        for child in snapshot.children {
            let name = child.value["name"] as? String
            friendsList.append(name!)
        }
        print("\(friendsList)")
    }
})