I connected to API using Alamofire and SwiftyJson.
I got this JSON return:
{
\"contacts\": [
        {
                     
        You need to implement UITableViewDataSource and UITableViewDelegate like this
class ViewController:UIViewController, UITableViewDataSource, UITableViewDelegate 
and in viewDidLoad you need to assign DataSource and Delegate to your tableView like this
override func viewDidLoad() {
    super.viewDidLoad()
    tblJSON.dataSource = self
    tblJSON.delegate = self
    getRequest()
}