Can Swift 4's JSONDecoder be used with Firebase Realtime Database?

Question

I am trying to decode data from a Firebase DataSnapshot so that it can be decoded using JSONDecoder.

I can decode this data fine when I use a URL to access it with a

Answer 1

Or you can use this solution for children

extension DatabaseReference {
  func makeSimpleRequest(completion: @escaping (U) -> Void) {
    self.observeSingleEvent(of: .value, with: { snapshot in
        guard let object = snapshot.children.allObjects as? [DataSnapshot] else { return }
        let dict = object.compactMap { $0.value as? [String: Any] }
        do {
            let jsonData = try JSONSerialization.data(withJSONObject: dict, options: [])
            let parsedObjects = try JSONDecoder().decode(U.self, from: jsonData)
            completion(parsedObjects)
        } catch let error {
            print(error)
        }
    })
  }
}

and use

self.refPriceStatistics.child(productId).makeSimpleRequest { (parsedArray: [YourArray]) in
    callback(parsedArray)
}