json swift ios - sending parameters to a php-sql - php

Question

Hello I am trying to send a couple of parameters from an SWIFT IOS application to a PHP-SQL database using JSON. Has tried several examples both sycronus and asyncronus but I do not get it to work.
Keep troubling with the converting of the JSON parameter string to a format that will be received on the other side.. (when i try in the browser it will work..but not from the app itself)
Here is the code - from PLAYGROUND
(The response is API Response: OPTIONAL (Missing JSON)
// Playground - noun: a place where people can play
import UIKit
import CoreLocation
var str = "Hello, playground debug use of JSON and PHP"
import Foundation
let url = NSURL(string:"http://mywebserver-replaced.no/POSITION/update.php?")
let cachePolicy = NSURLRequestCachePolicy.ReloadIgnoringLocalCacheData
var request = NSMutableURLRequest(URL: url!, cachePolicy: cachePolicy, timeoutInterval: 2.0)
request.HTTPMethod = "POST"
// set Content-Type in HTTP header
let boundaryConstant = "----------V2ymHFg03esomerandomstuffhbqgZCaKO6jy";
let contentType = "multipart/form-data; boundary=" + boundaryConstant
NSURLProtocol.setProperty(contentType, forKey: "Content-Type", inRequest: request)
// set data
var dataString = " "
dataString = "json={\"FBID\":10,\"Driving\":1,\"Latitude\":\"68.123\",\"Longitude\":\"22.124\",\"Time\":\"18:24\",\"Date\":\"07.10.2014\",\"Heading\":90}"
let requestBodyData = (dataString as NSString).dataUsingEncoding(NSUTF8StringEncoding)
request.HTTPBody = requestBodyData
println("\(requestBodyData)") // This will print "Optional(<6a736f6e...and so on..
// And except the optional it is quite correct.. json={
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
// set content length
// NSURLProtocol.setProperty(requestBodyData.length, forKey: "Content-Length", inRequest: request)
var response: NSURLResponse? = nil
var error: NSError? = nil
let reply = NSURLConnection.sendSynchronousRequest(request, returningResponse:&response, error:&error)
let results = NSString(data:reply!, encoding:NSUTF8StringEncoding)
println("API Response: \(results)")
What am i dooing wrong?

Answer 1

You are setting wrong Content-Type
request.setValue("application/x-www-form-urlencoded", forHTTPHeaderField: "Content-Type")
should be
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
And also
dataString = "json={\"FBID\":10,\"Driving\":1,\"Latitude\":\"68.123\",\"Longitude\":\"22.124\",\"Time\":\"18:24\",\"Date\":\"07.10.2014\",\"Heading\":90}"
Remove the json=, which makes the body not a valid json.