In iOS swift Json Parsing How to Pass Parameters in post method - swift

Question

Here I have Tried to Sign Up the App Using Mobile Number but I cant do in correct format,I have error in Json parsing for signup the app.
Here I give the code what i am tried,
var request = NSMutableURLRequest(URL: NSURL(string: "http://app.mycompany.in/gcm/test_slim.php/register")!, cachePolicy: NSURLRequestCachePolicy.ReloadIgnoringLocalCacheData, timeoutInterval: 5)
var response: NSURLResponse?
var error: NSError?
var reponseError: NSError?
var urlData: NSData? = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&reponseError)
// create some JSON data and configure the request
let jsonString = "json=[{\"gsm_number\":\(Mobile),\"name\":\(Name),\"email\":\(Email),\"status\":\(Status),\"ver_code\":,\"profile_picture\":,\"device_id\":,\"gcm\":,\"is_register\":,\"thumb_image\":,\"user_baground_img\":}]"
request.HTTPBody = jsonString.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: true)
request.HTTPMethod = "POST"
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
// send the request
NSURLConnection.sendSynchronousRequest(request, returningResponse: &response, error: &error)
// look at the response
if let httpResponse = response as? NSHTTPURLResponse {
println("HTTP response: \(httpResponse.statusCode)")
println("jsonString: \(jsonString)")
var responseData:NSString = NSString(data:urlData!, encoding:NSUTF8StringEncoding)!
let VerificationcodeViewController = self.storyboard?.instantiateViewControllerWithIdentifier("verificationcodeViewController") as UIViewController
self.navigationController?.pushViewController(VerificationcodeViewController, animated: true)
} else {
println("No HTTP response")
var alertView:UIAlertView = UIAlertView()
alertView.title = "Error!"
alertView.message = "Error. & Some Problem was Found"
alertView.delegate = self
alertView.addButtonWithTitle("OK")
alertView.show()
}

Answer 1

You can't have empty keys, try this :
let parameters = [
"gsm_number" : Mobile,
"name" : Name,
"email" : Email,
"status" : Status,
]
let jsonData = NSJSONSerialization.dataWithJSONObject(parameters, options: NSJSONWritingOptions.allZeros, error: nil)
let jsonString = "json=\(NSString(data: jsonData!, encoding: NSUTF8StringEncoding)!)"

Answer 2

You jsonString does not conform to the JSON syntax.
You can't have json= at the beginning, = isn't an allowed separator in JSON, use :
You need to wrap the string variables with double quotes (and escape them)
You can't have empty keys like that with just the value missing, you have to use null
Example of valid string for your variables:
let jsonString = "[{\"gsm_number\":\(Mobile),\"name\":\"\(Name)\",\"email\":\"\(Email)\",\"status\":\(Status),\"ver_code\":null}]"
Or with a 'json' key at the beginning like you had:
let jsonString = "{\"json\":[{\"gsm_number\":\(Mobile),\"name\":\"\(Name)\",\"email\":\"\(Email)\",\"status\":\(Status),\"ver_code\":null}]}"
Put this in a Playground and show the Assistant Editor in the "View" menu, it will help you understand:
let Mobile = 42
let Name = "James"
let Email = "test#test.com"
let Status = 200
let jsonString = "[{\"gsm_number\":\(Mobile),\"name\":\"\(Name)\",\"email\":\"\(Email)\",\"status\":\(Status),\"ver_code\":null}]"
let data = jsonString.dataUsingEncoding(NSUTF8StringEncoding, allowLossyConversion: false)
Swift 1
var err: NSError?
let json = NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.allZeros, error: &err) as? [[String:AnyObject]]
if err != nil {
println(err)
} else {
println(json![0]["status"]!)
}
Swift 2
do {
if let data = data,
let json = try NSJSONSerialization.JSONObjectWithData(data, options: []) as? [[String:AnyObject]] {
if let status = json[0]["status"] as? Int {
print(status)
}
}
} catch let error as NSError {
print(error.localizedDescription)
}