How to get an array field from Firestore and write in struct field in Swift? - swift

Question

The problem that I faced is, I can reach every field in Firestore and write in structs except array&map field.
My firestore data is something like:
let data : [String : Any] = [
"name" : "House A",
"price" : 2000,
"contents" : [
"water" : true,
"internet" : false
]
]
Here is getDocument function:
let docRef = db.collection("example").document("example")
docRef.getDocument { (document, error) in
if let document = document, document.exists {
let data = Houses(Doc: document)
...
...
...
} else {
print(error, "Item not found")
}
}
Here is my structs :
struct Houses {
var name: String?
var price: Int
var contents : Contents
init(Doc: DocumentSnapshot){
self.name = Doc.get("name") as? String ?? ""
self.price = Doc.get("price") as! Int
self.contents = Doc.get("contents") as! Contents
}
}
struct Contents {
var water: Bool
var internet : Bool
init?(data: [String: Any]) {
guard let water = data["water"] as? Bool,
let internet = data["internet"] as? Bool else {
return nil
}
self.water = water
self.internet = internet
}
}
The other version of Contents :
struct Contents {
var water: Bool
var internet : Bool
init(Doc: DocumentSnapshot){
self.water = Doc.get("water") as! Bool
self.internet = Doc.get("internet") as! Bool
}
}
UPDATED
The problem solved with changing this line:
self.contents = Doc.get("contents") as! Contents
to;
self.contents = Contents(data: Doc.get("contents") as! [String : Any])
name and price returns what I expected but contents always return nil. I tried to configure Contents but results are same. I think, I have to configure struct named Contents.
Any help would be appreciated.