I'm currently developing my first iOS app using Swift 2.0 and Xcode Beta 2. It reads an external JSON and generates a list in a table view with the data. However, I'm getting a strange little error that I can't seem to fix: error coming in this code for post data server using swift (extra argument error in cal)
@IBAction func registerbutton(sender: AnyObject) {
func application(application: UIApplication!, didFinishLaunchingWithOptions launchOptions: NSDictionary!) -> Bool {
//declare parameter as a dictionary which contains string as key and value combination.
var parameters = ["name": Name.text!, "emailaddress": EmailAddress.text!, "phonenumber": PhoneNumber.text!, "Dealerloaction": dealerlocationtextfield.text!] as Dictionary<String, String>
//create the url with NSURL
let url = NSURL(string: "http://192.168.1.75:3002/users/sign_in") //change the url
//create the session object
var session = NSURLSession.sharedSession()
//now create the NSMutableRequest object using the url object
let request = NSMutableURLRequest(URL: url!)
request.HTTPMethod = "POST" //set http method as POST
var err: NSError?
request.HTTPBody = NSJSONSerialization.dataWithJSONObject(parameters, options: nil, error: &err ) // pass dictionary to nsdata object and set it as request body
request.addValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
request.addValue("application/json", forHTTPHeaderField: "Accept")
//create dataTask using the session object to send data to the server
var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
print("Response: \(response)")
var strData = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Body: \(strData)")
var err: NSError?
var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
// Did the JSONObjectWithData constructor return an error? If so, log the error to the console
if(err != nil) {
print(err!.localizedDescription)
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: '\(jsonStr)'")
}
else {
// The JSONObjectWithData constructor didn't return an error. But, we should still
// check and make sure that json has a value using optional binding.
if let parseJSON = json {
// Okay, the parsedJSON is here, let's get the value for 'success' out of it
var success = parseJSON["success"] as? Int
println("Succes: \(success)")
}
else {
// Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
let jsonStr = NSString(data: data!, encoding: NSUTF8StringEncoding)
print("Error could not parse JSON: \(jsonStr)")
}
}
})
task.resume()
return true
}
