Swift Firebase completion handler not working, not fetching Data - ios

Question

I have my function here which is supposed to pull all the locations under the child "launch" in my database.
import UIKit
import Firebase
import FirebaseDatabase
class SearchSelectVC: UIViewController, UIPickerViewDelegate , UIPickerViewDataSource{
#IBOutlet weak var locationPicker: UIPickerView!
#IBOutlet weak var datePicker: UIPickerView!
#IBOutlet weak var locationLB: UILabel!
#IBOutlet weak var dateLB: UILabel!
var locData: [String] = [String]()
var dateData : [String] = [String]()
override func viewDidLoad() {
super.viewDidLoad()
initPickers()
getloc(onCompletion: { (data) in
print(data)
self.locData = (data)
})
}
func getDate(onCompletion: #escaping ([String]) -> ()) {
var data : [String] = []
let selectedLoc = locationLB.text
var dateRef: DatabaseReference!
dateRef = Database.database().reference().child("launch").child((selectedLoc)!)
dateRef.observe(.value) { (snapshot) in
for child in snapshot.children {
let snap = child as! DataSnapshot
let key = snap.key
data.append(key)
print("date = \(key)")
//print(data)
}
onCompletion(data)
}
}
func getLoc(onCompletion: #escaping ([String]) -> Void){
print("here3")
var data : [String] = []
var locRef: DatabaseReference!
locRef = Database.database().reference()
print("here4")
locRef.child("launch").observe(.value) { snapshot in
for child in snapshot.children {
let snap = child as! DataSnapshot
let key = snap.key
print(snap)
print(key)
data.append(key)
print("location = \(key)")
//print(data)
}
onCompletion(data)
}
}
func initPickers(){
locationPicker.delegate = self
locationPicker.dataSource = self
datePicker.delegate = self
datePicker.dataSource = self
}
}
None of the "here" statements get printed out, neither the snapshot of key or the data which is being collected. Im not really sure whats wrong with my code. Here is a picture of my database
Thanks!