how to parse the children array using json in swift 3? - ios

Question

In this i need to get the elements from children array which will be in below mentioned url and i need to get the children array from all 11 objects can anyone help me how to implement this ?
let url = "http://www.json-generator.com/api/json/get/cwqUAMjKGa?indent=2"
var detailsArray :[[String: AnyObject]] = []
var productName = [String]()
var childrenArray :[[String: AnyObject]] = []
override func viewDidLoad() {
super.viewDidLoad()
downloadJsonWithURL()
// Do any additional setup after loading the view.
}
func downloadJsonWithURL() {
let url = NSURL(string: self.url)
URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: {(data, response, error) -> Void in
if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary {
self.detailsArray = (jsonObj!.value(forKey: "data") as? [[String: AnyObject]])!
print(self.detailsArray)
for item in self.detailsArray{
if let detailDict = item as? NSDictionary {
if let name = detailDict.value(forKey: "name"){
self.productName.append(name as! String)
}
}
}
OperationQueue.main.addOperation({
print(self.productName)
print(self.childrenArray)
})
}
}).resume()
}

Answer 1

iterate the detailsArray and for key "children" append the data to childrenArray
for item in self.detailsArray {
if let detailDict = item as? [String: Any] {
if let child = detailDict["children"] {
self. childrenArray.append(child)
}
}
}

Answer 2

Try out this :
func downloadJsonWithURL() {
let url = NSURL(string: self.url)
URLSession.shared.dataTask(with: (url as URL?)!, completionHandler: {(data, response, error) -> Void in
if let jsonObj = try? JSONSerialization.jsonObject(with: data!, options: .allowFragments) as? NSDictionary {
self.detailsArray = (jsonObj!.value(forKey: "data") as? [[String: AnyObject]])!
print(self.detailsArray)
for item in self.detailsArray{
if let detailDict = item as? [String:Any] {
if let name = detailDict["name"] as? String {
self.productName.append(name as! String)
}
if let children = detailDict["children
"] as? [Any] {
self.childrenArray.append(children)
}
}
}
OperationQueue.main.addOperation({
print(self.productName)
print(self.childrenArray)
})
}
}).resume()
}