Looking at NSError Handling from NSURLSession

NSURLErrorHandling.swift

import UIKit
import XCPlayground

// HTTPS Request
var secureSession = NSURLSession.sharedSession()
if let url = NSURL(scheme: "https", host: "api.github.com", path: "/users/collinsrj/repos") {
//if let url = NSURL(scheme: "https", host: "goo.gl", path: "/WsXbKr") {
    var httpsTask = secureSession.dataTaskWithURL(url) {
        (data, response, error) -> Void in
        if error != nil {
            let err = error!
            // handle the error
            println("Code: \(err.code)")
            println("Domain: \(err.domain)")
            println("UserInfo: \(err.userInfo)")
            println("Description: \(err.localizedDescription)")
            println("RecoveryOptions: \(err.localizedRecoveryOptions)")
            println("RecoverySuggestion: \(err.localizedRecoverySuggestion)")
            println("FailureReason: \(err.localizedFailureReason)")
            println("HelpAnchor: \(err.helpAnchor)")
        } else if let httpResponse = response as? NSHTTPURLResponse {
            switch httpResponse.statusCode {
            case 200:
                let stringData = NSString(data: data, encoding: NSUTF8StringEncoding)
            default:
                println("An unexpected http response: \(NSHTTPURLResponse.localizedStringForStatusCode(httpResponse.statusCode))")
            }
        } else {
            println("Something else happened.")
        }
    }
    httpsTask.resume()
}

XCPSetExecutionShouldContinueIndefinitely()