PromiseKit 2 Example with Promise<T>

EsampleSwift.swift

//
//  ViewController2.swift
//
//  Created by Pablo Carrillo on 09/06/2015.
//  Copyright (c) 2015 Calvium. All rights reserved.
//

import UIKit
import Alamofire
import PromiseKit


class ViewController2: UIViewController {
    
    var properties = ApplicationProperties()
    var server: SomeAPIConfig!
    var manager: Alamofire.Manager?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }
    
    override func viewDidAppear(animated: Bool) {
        super.viewDidAppear(animated)
        server = SomeAPIConfig(clientId: properties.someAPIClientId, url: properties.someAPIBaseUrl)
        var sessionManager = SessionManager(config: server)
        sessionManager.login("user", password: "pasword") { (status) -> Void in
            var result = ""
            switch status{
            case .Valid:
                result = "valid"
            default:
                result = "Something went wrong"
            }
            println("Session with status \(result)")
            sessionManager.token({ (status, token) -> Void in
                println("The token is \(token)")
                firstly{
                    self.connectToServer(token!)
                    }.then { Void -> Void in
                        println("The promise was executed")
                    }.recover { error -> Promise<Void> in
                        println("Error \(error)")
                        return Promise()
                    }.finally { _ -> Void in
                        self.dismissViewControllerAnimated(true, completion: nil)
                }
            })
        }
    }
    
    func connectToServer(token: String, completion:(Void)->Void)-> Void{
        var defaultHeaders = Alamofire.Manager.sharedInstance.session.configuration.HTTPAdditionalHeaders ?? [:]
        defaultHeaders["Authorization"] = "Bearer \(token)"
        
        let configuration = NSURLSessionConfiguration.defaultSessionConfiguration()
        configuration.HTTPAdditionalHeaders = defaultHeaders
        
        
        self.manager = Alamofire.Manager(configuration: configuration)
        
        let path = "https://path/to/server/api"
        self.manager!.request(.GET, server.url + path, parameters: nil)
            .responseString { (request, response, data, error) in
                println(request)
                println(response)
                println(error)
                println(data)
                completion()
            }.responseJSON() { (request, response, json, error) -> Void in
                println(json)
        }
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    
    func connectToServer(token: String) ->(Promise<Void>){
        return   Promise{ fulfill, reject in
            self.connectToServer(token, completion:{
                println("Running the promise Block")
                fulfill()
            })
        }
    }
}