Swift: JSON file from URL instead of local - json

Question

Right now I have this:
let path : String = NSBundle.mainBundle().pathForResource("jsonFile", ofType: "json") as String!
let jsonData = NSData(contentsOfFile: path) as NSData!
let readableJSON = JSON(data :jsonData, options: NSJSONReadingOptions.MutableContainers, error: nil)
But I want to receive the file from a url, and not have it in my app.

Answer 1

You need to read through some of apple docs: NSURLConnection and NSURLSession
Here is a quick solution for how to achieve this though.
func fetchDetailsFromServer() {
let urlPath = "Server URL to Fetch JSON"
let url = NSURL(string: urlPath)
let session = NSURLSession.sharedSession()
let task = session.dataTaskWithURL(url!, completionHandler: {data, response, error -> Void in
println("Task completed")
if(error != nil) {
// If there is an error in the web request, print it to the console
println(error.localizedDescription)
}
var err: NSError?
if let jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers, error: &err) as? NSDictionary {
if(err != nil) {
// If there is an error parsing JSON, print it to the console
println("JSON Error \(err!.localizedDescription)")
}
// Use your jsonResult appropriately here
}
})
// The task is just an object with all these properties set
// In order to actually make the web request, we need to "resume"
task.resume()
}