How to send POST request with JSON data to external database for login app in IOS using Swift?

I am new in Swift and iOS. Please send me the sample code for POST request with JSON data to external database for login app in iOS using Swift

You can call post api like below code,

Try this

func callPostApi()
{
    let baseUrl : NSString = NSString(format: "YOUR_BASE_URL")   //"http://at.webby.com/php.api"
    let request = NSMutableURLRequest(URL: NSURL(string: baseUrl as String)!)
    let session = NSURLSession.sharedSession()

    request.HTTPMethod = "POST"
    let stringPost = "username=test&password=12345" // Key and Value param as string

    let data = stringPost.dataUsingEncoding(NSUTF8StringEncoding)

    request.timeoutInterval = 60
    request.HTTPBody=data

    let task = session.dataTaskWithRequest(request, completionHandler: {data, response, error -> Void in

        let err1: NSError? = nil
        do
        {
            let json = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.MutableContainers)
            print(json)
        }
        catch
        {
            print(err1)
        }
    })

    task.resume()
}

Hope this will help you.