How to properly parse a Json collection?

Question

JSON

Greetings Tell me
how to optimally get to the "Body"
Json values, it looks like this (So it leaves the .net server):

{
  "isOk":true,
  "result":"[
  {
    "Name":"file0",
    "Size":93316,
    "MimeType":"image/jpeg",
    "Body":"/9j/4QAYRXIDIwMTAvM..."
  },
  {
    "Name":"file1",
    "Size":146597,
    "MimeType":"image/jpeg",
    "Body": "/9j/4AAQSkZJRgABAgAAA.."
  ]",
  "errorMessage":null
}

But through

Alamofire.request(postURL, method: .post, parameters: parameters, encoding: URLEncoding.default).responseJSON { response in
            switch response.result {
                case .success:
                    if let result = response.result.value {
                         print("\n result:", result)
}
}
}

I get it in a different order, and sometimes this order changes

{
  "errorMessage" : null,
  "isOk" : true,
  "result" : "[{\"Name\":\"file0\",\"Size\":70123,\"MimeType\":\"image\/jpeg\",\"Body\":\"\/9j\/4AAQSkZJRgA....}]
}

Array path

guard let jsonResponse = response.result.value as? NSDictionary else { return }
                    if jsonResponse["result"] != nil {
                        let res = String(describing: jsonResponse["result"]!)
}

I would like to do everything through SwiftyJson, but through it I can not get to the arrays

if let value = self.json["errorMessage"]["isOk"]["result"][].array {
          print("\n value  \(value)")
}

Answer 1

I get it in a different order, and sometimes this order changes

Through SwiftyJSONyou need to get an array , it looks like this:
json["result"].arrayValue

Answer 2

I would recommend Codable protocol

let json = "{\"isOk\":true,\"result\":[{\"Name\":\"file0\",\"Size\":93316,\"MimeType\":\"image/jpeg\",\"Body\":\"/9j/4QAYRXIDIwMTAvM...\"},{\"Name\":\"file1\",\"Size\":146597,\"MimeType\":\"image/jpeg\",\"Body\":\"/9j/4AAQSkZJRgABAgAAA..\"}],\"errorMessage\":null}"

let data = json.data(using: .utf8)!

struct APIResponse: Decodable {
    let isOk: Bool
    let result: [Item]
    let errorMessage: String?
    
    struct Item: Decodable {
        let name: String
        let size: Double
        let mimeType: String
        let body: String
        
        enum CodingKeys: String, CodingKey {
            case name = "Name"
            case size = "Size"
            case mimeType = "MimeType"
            case body = "Body"
        }
    }
}

let response = try! JSONDecoder().decode(APIResponse.self, from: data)
print(response)

// Output:
// APIResponse(isOk: true, result: [__lldb_expr_33.APIResponse.Item(name: "file0", size: 93316.0, mimeType: "image/jpeg", body: "/9j/4QAYRXIDIwMTAvM..."), __lldb_expr_33.APIResponse.Item(name: "file1", size: 146597.0, mimeType: "image/jpeg", body: "/9j/4AAQSkZJRgABAgAAA..")], errorMessage: nil)