JSONEncoder doesnt work integer values below IOS 13- - ios

Question

I'm trying to send a Integer value to WebService with body so I created a function like that :
static func GetRoomVersionAndRemainingSeconds(auctionId:Int,completed:#escaping (ServiceResultDene<String>)->()){
var memberJson : String = ""
do{
let jsonEncoder = JSONEncoder()
let jsonData = try jsonEncoder.encode(auctionId)
memberJson = String(data: jsonData, encoding: String.Encoding.utf8)!
}catch{
print(error)
}
var request = URLRequest(url: URL(string: WebServiceUrls.GetRoomVersionAndRemainingSeconds)!)
request.httpMethod = HTTPMethod.post.rawValue
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue(Util.cookie, forHTTPHeaderField: "Cookie")
request.httpBody = (memberJson).data(using: .unicode)
Alamofire.request(request).responseJSON{response in
....
}
When I try above code , it perfectly encode the Integer value on IOS 13+ -- memberJson is = "\"4\""
But when I try this on IOS 12.4 It doesnt encode and error.localizedDescription returns : invalidValue(4, Swift.EncodingError.Context(codingPath: [], debugDescription: "Top-level Int encoded as number JSON fragment.", underlyingError: nil))
What is the problem is here ? Any suggestion could be good.Thanks

Answer 1

The JSON encoding is pointless. In practice you are going to convert an Int to a String.
This can be done much simpler
static func GetRoomVersionAndRemainingSeconds(auctionId: Int,completed: #escaping (ServiceResultDene<String>)->()){
var request = URLRequest(url: URL(string: WebServiceUrls.GetRoomVersionAndRemainingSeconds)!)
request.httpMethod = HTTPMethod.post.rawValue
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue(Util.cookie, forHTTPHeaderField: "Cookie")
request.httpBody = Data(String(auctionId).utf8)
Alamofire.request(request).responseJSON{response in
....
}
By the way the reason of the error is that JSONEncoder doesn’t support to encode fragments prior to iOS 13.