sampleRESTCall.swift

    func callVDAPIGET(payload: String) {
        println("CAlling REST API")
        

            let urlPath = "https://rich-archery-782.appspot.com/touchpay"
            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?
                
                
                var 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)")
                }
                println(jsonResult)
                //let results: NSArray = jsonResult["results"] as NSArray
                
            })
            
            task.resume()
        }
    
    func callVDAPIPOST(params: Dictionary<String, String>) -> Bool
    {
        var request = NSMutableURLRequest(URL: NSURL(string: "https://hidden-bond-93218.appspot.com/touchpay")!)
        var session = NSURLSession.sharedSession()
        request.HTTPMethod = "POST"
        
        //var params = ["sender":"blob", "receiver":"PAN"] as Dictionary<String, String>
        
        var err: NSError?
        let data = NSJSONSerialization.dataWithJSONObject(params, options: nil, error: &err)
        request.HTTPBody = data
        var strBody = NSString(data: data!, encoding: NSUTF8StringEncoding)
        println(strBody)

        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")
        
        var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
            println("Response: \(response)")
            var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
            println("Body: \(strData)")

            self.resultLabel.text = strData

            var err: NSError?
            var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
            
            // Did the JSONObjectWithData constructor return an error? If so, log the error to the console
            if(err != nil) {
                println(err!.localizedDescription)
                let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
                println("Error could not parse JSON: '\(jsonStr)'")
                self.resultLabel.text = "Unable to send money right now"
            }
            else {
                // The JSONObjectWithData constructor didn't return an error. But, we should still
                // check and make sure that json has a value using optional binding.
                if let parseJSON = json {
                    // Okay, the parsedJSON is here, let's get the value for 'success' out of it
                    var success = parseJSON["success"] as? Int
                    println("Succes: \(success)")

                }
                else {
                    // Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
                    let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
                    println("Error could not parse JSON: \(jsonStr)")
                    self.resultLabel.text = "Error sending money"
                }
            }
        })
        
        task.resume()
        
        return true
    }
    
    func callANETAPIPOST(params: Dictionary<String, String>) -> Bool
    {
        var request = NSMutableURLRequest(URL: NSURL(string: "https://apitest.authorize.net/xml/v1/request.api")!)
        var session = NSURLSession.sharedSession()
        request.HTTPMethod = "POST"
        
        var myMerchantParams = ["name":"89nE4Beh", "transactionKey":"7s2g3yWC3TfC92p2"] as Dictionary<String, String>
        var myCardParams = ["cardNumber":"5424000000000015", "expirationDate":"1220", "cardCode":"999"] as Dictionary<String, String>
        
        var myPaymentParams = ["creditCard":myCardParams] as Dictionary<String, AnyObject>

        var myTransactionParams: [[String:AnyObject]] = [["transactionType":"authCaptureTransaction"], ["amount":"5"], ["payment":myPaymentParams]]

        

        
        var myRequestParams = ["transactionRequest":myTransactionParams, "refId":"578787","merchantAuthentication":myMerchantParams] as Dictionary<String, AnyObject>
        var myRequest = ["createTransactionRequest":myRequestParams] as Dictionary<String, AnyObject>
        
        var err: NSError?
        let data = NSJSONSerialization.dataWithJSONObject(myTransactionParams, options: nil, error: &err)
        request.HTTPBody = data
        var strBody = NSString(data: data!, encoding: NSUTF8StringEncoding)
        println(strBody)
        
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")
        request.addValue("application/json", forHTTPHeaderField: "Accept")
        
        var task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in
            println("Response: \(response)")
            var strData = NSString(data: data, encoding: NSUTF8StringEncoding)
            println("Body: \(strData)")
            
            self.resultLabel.text = strData
            
            var err: NSError?
            var json = NSJSONSerialization.JSONObjectWithData(data, options: .MutableLeaves, error: &err) as? NSDictionary
            
            // Did the JSONObjectWithData constructor return an error? If so, log the error to the console
            if(err != nil) {
                println(err!.localizedDescription)
                let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
                println("Error could not parse JSON: '\(jsonStr)'")
                self.resultLabel.text = "Unable to send money right now"
            }
            else {
                // The JSONObjectWithData constructor didn't return an error. But, we should still
                // check and make sure that json has a value using optional binding.
                if let parseJSON = json {
                    // Okay, the parsedJSON is here, let's get the value for 'success' out of it
                    var success = parseJSON["success"] as? Int
                    println("Succes: \(success)")
                    
                }
                else {
                    // Woa, okay the json object was nil, something went worng. Maybe the server isn't running?
                    let jsonStr = NSString(data: data, encoding: NSUTF8StringEncoding)
                    println("Error could not parse JSON: \(jsonStr)")
                    self.resultLabel.text = "Error sending money"
                }
            }
        })
        
        task.resume()
        
        return true
    }