How to get data from an API using Swift - json

Question

I'm trying to get data from an API into my table view, but app goes into the catch error " json error". I'll share the code with you.
class ViewController: UIViewController {
#IBOutlet weak var homeTableView: UITableView!
var repository = [RepositoryStats]()
override func viewDidLoad() {
super.viewDidLoad()
downloadJSON {
self.homeTableView.reloadData()
}
homeTableView.delegate = self
homeTableView.dataSource = self
}
func downloadJSON (completed: #escaping () -> ()) {
let url = URL (string: "https://api.github.com/search/repositories?q=language:Swift+language:RXSwift&sort=stars&order=desc")
URLSession.shared.dataTask(with: url!) { (data, response, error) in
if error == nil {
do {
self.repository = try JSONDecoder().decode([RepositoryStats].self, from: data!)
DispatchQueue.main.async {
completed()
}
}catch {
print ("json error")
}
}
}.resume()
}
}
extension ViewController: UITableViewDelegate, UITableViewDataSource{
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return repository.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = UITableViewCell(style: .default, reuseIdentifier: nil)
cell.textLabel?.text = repository[indexPath.row].full_name
return cell
}
This is my struct where I declared :
struct RepositoryStats: Decodable {
let items: [Item]
}
struct Item: Decodable {
let fullName: String
}
If anyone know, why I am getting into the "json error" catch ? Thank you !
Link : https://api.github.com/search/repositories?q=language:Swift+language:RXSwift&sort=stars&order=desc

Answer 1

I fixed it. I have changed my struct into this :
struct RepositoryStats: Decodable {
let items: [Item]
}
struct Item: Decodable {
let full_name: String
let forks_count: Int
let stargazers_count: Int
}
And this is my downloaad JSON func.
func downloadJSON (completed: #escaping () -> ()) {
let url = URL (string: "https://api.github.com/search/repositories?q=language:Swift+language:RXSwift&sort=stars&order=desc")
URLSession.shared.dataTask(with: url!) { (data, response, error) in
if error == nil {
do {
self.repository = try JSONDecoder().decode(RepositoryStats.self, from: data!)
DispatchQueue.main.async {
completed()
}
}catch {
print (error)
}
}
}.resume()
}
}