How to fill table with JSON data in Swift 3?

I created a tableView in which I want to put news using this link

   https://api.sis.kemoke.net/news

There are three things which I want to get and populate the table.

    String title
    String text
    String link

Here is my class

    import Alamofire //Framework for handling http requests
    import UIKit

/A class which will process http requests, receive the news as string and fill the array with such data which will be displayed in a table/ class NewsTableViewController: UITableViewController {

//Array which holds the news
var newsData:Array< String > = Array < String >()

// Download the news
func downloadData() {
    Alamofire.request("https://api.sis.kemoke.net/news").responseJSON { response in
        print(response.request)  // original URL request
        print(response.response) // HTTP URL response
        print(response.data)     // server data
        print(response.result)   // result of response serialization

        //Optional binding to handle exceptions
        if let JSON = response.result.value {
            print("JSON: \(JSON)")
        }
    }
}

override func viewDidLoad() {
    super.viewDidLoad()
    downloadData()
    extractData()
}

override func didReceiveMemoryWarning() {
    super.didReceiveMemoryWarning()
}

// MARK: - Table view data source
// Number of sections i table vie
override func numberOfSections(in tableView: UITableView) -> Int {
    return 1
}

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return newsData.count
}


override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
    cell.textLabel?.text = newsData[indexPath.row]
    return cell
}

// Extract the data from the JSON
func extractData() {
    Alamofire.request("https://api.sis.kemoke.net/news").responseJSON { response in
        debugPrint(response)

        if let json = response.result.value {
            print("JSON: \(json)")
            self.newsData = json as! Array
        }
    }
}

// MARK: - Navigation

override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
    // Get the new view controller using segue.destinationViewController.
    // Pass the selected object to the new view controller.
}

}

Later-on I will try to get the image as well but for now those three variables should be enough.

Solution

First of all create a custom struct for the data

struct News {
  let title : String
  let text : String
  let link : String

  init(dictionary: [String:String]) {
     self.title = dictionary["title"] ?? ""
     self.text = dictionary["text"] ?? ""
     self.link = dictionary["link"] ?? ""
  }
}

The data source array is
```
var newsData = [News]() 
```

Use only downloadData(), delete the other method.
Using a custom struct the parsing is quite simple:

func downloadData() {
    Alamofire.request("https://api.sis.kemoke.net/news").responseJSON { response in
        print(response.request)  // original URL request
        print(response.response) // HTTP URL response
        print(response.data)     // server data
        print(response.result)   // result of response serialization

        //Optional binding to handle exceptions
        if let json = response.result.value as? [[String:String]] {
            self.newsData = json.map{ News(dictionary: $0) }
            self.tableView.reloadData()
        }
    }
}

In cellForRow... display the title

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "cell", for: indexPath)
    let news = newsData[indexPath.row]
    cell.textLabel?.text = news.title
    return cell
}