Tangocard API example code in Swift, ordering a $15.00 Amazon card

order_place.swift

func placeOrder() {
        
    // Platform and account information
    let platform = "<platform>"
    let key      = "<key>"
    let customer = "<customer>"
    let account_identifier = "<account>"
    
    // Prepare basic auth
    let loginString = NSString(format: "%@:%@", platform, key)
    let loginData: NSData = loginString.dataUsingEncoding(NSUTF8StringEncoding)!
    let base64LoginString = loginData.base64EncodedStringWithOptions(nil)
    
    // Set the URL and headers
    let url = NSURL(string: "https://sandbox.tangocard.com/raas/v1/orders")
    let request = NSMutableURLRequest(URL: url!)
    request.HTTPMethod = "POST"
    request.setValue("Basic \(base64LoginString)", forHTTPHeaderField: "Authorization")
    request.setValue("application/json", forHTTPHeaderField: "Content-Type")
    request.setValue("application/json", forHTTPHeaderField: "Accept")
    
    // Build the POST data
    let postBody = [
        "customer": customer,
        "account_identifier": account_identifier,
        "campaign": "",
        "recipient": [
            "name": "Test Recipient",
            "email": "[email protected]"
        ],
        "sku": "AMZN-E-V-STD",
        "amount": 1500,
        "reward_from": "Test Sender",
        "reward_subject": "Test Reward Subject",
        "reward_message": "Here is your reward!",
        "send_reward": true
    ]
    
    var serializationError: NSError?
    request.HTTPBody = NSJSONSerialization.dataWithJSONObject(postBody,
        options:NSJSONWritingOptions.PrettyPrinted,
        error:&serializationError);
    
    if serializationError == nil {
        
        // Perform the network request
        NSURLConnection.sendAsynchronousRequest(request, queue: NSOperationQueue.mainQueue()) {(response, data, error) in
            if error == nil {
                var parseError: NSError?
                let orderCreateResponse: AnyObject? = NSJSONSerialization.JSONObjectWithData(data,
                    options: NSJSONReadingOptions.AllowFragments,
                    error:&parseError)
                
                // Verify response and print the order id and claim code from the response
                if parseError == nil {
                    if let responseDict = orderCreateResponse as? NSDictionary {
                        if responseDict["success"] === true {
                            let order   = responseDict["order"] as NSDictionary
                            let orderId = order["order_id"]     as NSString
                            let reward  = order["reward"]       as NSDictionary
                            let claim   = reward["number"]      as NSString
                            
                            println("Order id: \(orderId)")
                            println("Order claim code: \(claim)")
                        } else {
                            let errorStr = responseDict["error_message"] as NSString
                            println("There was an error placing the order: \(errorStr)")
                        }
                    } else {
                        println("There was an error decoding the response, was not a JSON object")
                    }
                } else {
                    println("There was an error decoding the response: \(parseError!.description)")
                }
            } else {
                println("There was an error making the request: \(error.description)")
            }
        }
    } else {
        println("There was an error encoding the POST data: \(serializationError!.description)")
    }
}