Not able to parse json without model - ios

Question

I'm making an api call and getting the response like so..
if let data = NSData(contentsOf: NSURL(string: "http://test.chatongo.in/testdata.json")! as URL) {
do {
if let response = try JSONSerialization.jsonObject(with: data as Data, options: []) as? NSDictionary {
print("THE RESPONSE IS: \(response)")
}
} catch let error as NSError {
print(error.localizedDescription)
}
}
And the response I get like so...
THE RESPONSE IS: {
Message = Success;
Status = 200;
data = {
Records = (
{
Id = 1;
collectedValue = 500;
endDate = "10/06/2018";
mainImageURL = "http://iphonedeveloperguide.com/oneinr/project1.jpg";
shortDescription = "This foundation will bring smile on there faces";
startDate = "05/05/2018";
title = "Smile Crowdfunding";
totalValue = 5000;
},
{
Id = 2;
collectedValue = 750;
endDate = "08/06/2018";
mainImageURL = "http://iphonedeveloperguide.com/oneinr/project10.jpg";
shortDescription = "This foundation will help animals";
startDate = "05/05/2018";
title = "Animal Funding";
totalValue = 20000;
}
);
TotalRecords = 10;
};
}
But how do I parse this json and get the individual elements out of it including the image, that I'm not able to figure out.

Answer 1

You need
import UIKit
class ViewController: UIViewController {
var records = [Record]()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
URLSession.shared.dataTask(with: URL(string: "http://test.chatongo.in/testdata.json")!) { (data, response, error) in
guard let data = data else { return }
do {
let res = try JSONDecoder().decode(Root.self, from: data)
self.records = res.data.records
print(res.data.records)
// if it's a collection/table wrap the reload here inside DispatchQueue.main.async
}
catch {
print(error)
}
}.resume()
}
}
// MARK: - Empty
struct Root: Codable {
let status: Int
let message: String
let data: DataClass
enum CodingKeys: String, CodingKey {
case status = "Status"
case message = "Message"
case data
}
}
// MARK: - DataClass
struct DataClass: Codable {
let totalRecords: Int
let records: [Record]
enum CodingKeys: String, CodingKey {
case totalRecords = "TotalRecords"
case records = "Records"
}
}
// MARK: - Record
struct Record: Codable {
let id: Int
let title, shortDescription: String
let collectedValue, totalValue: Int
let startDate, endDate: String
let mainImageURL: String
enum CodingKeys: String, CodingKey {
case id = "Id"
case title, shortDescription, collectedValue, totalValue, startDate, endDate, mainImageURL
}
}
Tip : Don't use NS stuff in swift and avoid using Data(contentsOf: as it blocks the main thread

Answer 2

There are multiple ways, one way to create a modelobject of
struct RecordItem : Codable {
var id : Int?
var collectedValue : Int?
var endDate : String?
var mainImageURL: String?
var shortDescription : String?
var title :String?
var startDate : String?
var totalValue : Int?
}
and
struct Records : Codable {
var items : [RecordItem]?
}
and use this. = let item = data [index]
print (item. collectedValue) and so on.
seconds methods, you already created dict, then extract all keys and array objects using ["Key": "Value"] and set to any variable.