When I convert NSString to JSON, I get null - ios

Question

I am doing some webscraping and am able to get the html source code off of my desired page, but I am casting it to a NSString. When I try to convert that to JSON, I get a null when I try to print it. When I print responseString2 I am seeing the source code, but as an NSString. What am I doing wrong?
let task2 = URLSession.shared.dataTask(with: request2 as URLRequest) { data2, response, error in
guard error == nil && data2 != nil else { // check for fundamental networking error
print("error2=\(error)")
return
}
if let httpStatus = response as? HTTPURLResponse , httpStatus.statusCode != 200 { // check for http errors
print("statusCode2 should be 200, but is \(httpStatus.statusCode)")
print("response2 = \(response)")
}
let responseString2 = NSString(data: data2!, encoding: String.Encoding.utf8.rawValue)
print("hthpage \(responseString2)")
if let dataFromString = responseString2?.data(using: String.Encoding.utf8.rawValue, allowLossyConversion: false){
let json = JSON(data: dataFromString)
print("JASON \(json)")
}

Answer 1

Don't convert data->string->data.
Try this code
and check the error if the error occurred when converting data to json.
URLSession.shared.dataTask(with: request!) { (d, response, error) in
if let data = d
{
if let str = String(data: data, encoding: String.Encoding.utf8)
{
print("data->string : " + str)
}
do
{
if let obj = try JSONSerialization.jsonObject(with: data, options: []) as? [String:AnyObject]
{
DispatchQueue.main.async {
complete(obj)
}
}
else
{
print("Http - JsonSerialization Failed, not String:AnyObject Type!!")
}
}
catch let err as NSError
{
print("Http - JsonSerialization Error")
print(err)
}
}
else
{
if error != nil
{
print("Http - URLSession.shared.dataTask Error")
print(error)
}
}
}.resume()