title: Download address from firebase in mapView
body: <p>Trying to upload an address from firebase and post it on mapView. But for some reason the address doesn't want to unload. The address spelled out by the string in firebase example - <strong>Moscow, Street so-and-so, house 1</strong>. What could be the reason for not loading the data?</p>
  
  <pre><code>var allAddresses: String = ""
  
  addressRef = Database.database().reference(withPath: "Address")
  
  addressRef.observe(.value, with: { (snapshot) in
  
          let value = snapshot.value as! NSDictionary
  
          self.allAddresses = value["address"] as? String ?? ""
      })
  }
  </code></pre>
  
  <p>Firebase:</p>
  
  <pre><code>{
    «Address» : {
      «AddressOne» : {
        "address" : "Москва, Пресненская набережная д.8, квартира 195, подъезд 94",
      },
      "AddressTwo» : {
        "address" : "Москва, ул. Правды д.24 строение 3",
      },
      "AddressThree» : {
        "address" : "Москва,ул.Электрозаводская д.21",
      }
    }
  }
  </code></pre>