'Callback' is a missing argument in call? - ios

Question

I have a Seperated Swift file for the call. this looks like this:
var DEVICEBUNDLE_API_ROOT = "https://apps-dev.profects.nl/profects-apps/current/web/app.php/api/v2/device"
var session = NSURLSession.sharedSession()
init(action: NSString, data: NSString, callback: (success: Bool, data: NSDictionary) -> Void) {
var body = "{\"action\":\"" + action + "\",\"data\":" + data + "}";
var request = NSMutableURLRequest(URL: NSURL(string: DEVICEBUNDLE_API_ROOT)!)
request.HTTPMethod = "POST"
request.HTTPBody = body.dataUsingEncoding(NSUTF8StringEncoding) // Use UTF-8
var task = session.dataTaskWithRequest(request, completionHandler: {
data, response, error -> Void in
var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
println("Response: \(strData)")
var json = NSJSONSerialization.JSONObjectWithData(data, options : .MutableLeaves, error: nil) as? NSDictionary
if let parsedJSON = json
{
if let status = parsedJSON["status"] as? NSDictionary
{
if let statusCode = status["code"] as? NSString
{
if let responseData = parsedJSON["data"] as? NSDictionary
{
callback(success: statusCode == "201", data: responseData)
}
else
{
callback(success: false, data: NSDictionary())
}
}
}
}
})
task.resume()
}
The call for the login looks like this:
var request = JSONRequest("registerDeviceId", "{\"email\":\"" + usernameField.text + "\",\"password\":\"" + passwordField.text + "\", \"UUID\":\"Tset124235346456457567\", \"OS\":\"Android\"}")
Now an error shows up saying 'Missing Argument for parameter 'callback' in call'
How can I fix this? I already tried adding an value "" at the end of the call.

Answer 1

You are missing the callback. This is the closure that will be called when the request has finished running.
let action = "registerDeviceId"
let data = ...whatever...
var request = JSONRequest(action: action, data: data, callback: { (success: Bool, data: NSDictionary) in
// Do something here with the success and data info that you got from the request
return
})
More information about closures