How to return an array of objects using SearchBar and for loop

Question

I am wanting the search bar to return the title for each object in the Array. I believe the problem is in my for loop but I am not completed sure. Hopefully, you guys are able to tell me what I am doing wrong.

I am searching through an API. This is the array I am attempting to search through

struct ProductResponse: Decodable {
    let results: [SearchResults]
}

struct SearchResults: Decodable {
    let title: String
    let id:Int
}

I created a for loop to run through each object in the array and get the title and id.

func fetchProduct(productName: String) {
    let urlString = "\(searchURL)&query=\(productName)&number=25"
    performRequest(urlString: urlString)
}
func performRequest(urlString: String) {
    
    // Create a URL
    
    if let url = URL(string: urlString) {
        
        //Create a URLSession
        
        let session = URLSession(configuration: .default)
        // Give the session a task
        
        let task = session.dataTask(with: url) { (data, response, error) in
            if error != nil {
                print(error!)
                return
            }
            if let safeData = data {
                self.parseJSON(productTitle: safeData)
            }
            
        }
        
        // Start the task
        task.resume()
        
        
    }
    
}

func parseJSON(productTitle: Data) {
    let decoder = JSONDecoder()
    do {
    let decodedData = try decoder.decode(ProductResponse.self, from: productTitle)
        
        print(decodedData.results)
    } catch {
        print(error)
    }
}

}

I created this function to reload the data in my tableview. When I search for the product results in the Search Bar, my tableview doesn't return anything. The goal is to have my tableview return each result in a tableview cell

var listOfProducts = [SearchResults]() {
    didSet {
        DispatchQueue.main.async {
            self.tableView.reloadData()
            self.navigationItem.title = "\(self.listOfProducts.count) Products found"
        }
    }
}

override func viewDidLoad() {
    super.viewDidLoad()
    productSearch.delegate = self

}

func downloadJSON() {
    guard let downloadURL = url else { fatalError("Failed to get URL")}
    
    URLSession.shared.dataTask(with: downloadURL) { (data, Response, error) in
        print("downloaded")
    }.resume()
}
// MARK: - Table view data source

override func numberOfSections(in tableView: UITableView) -> Int {
    
    return 1
}

override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    // #warning Incomplete implementation, return the number of rows
    return listOfProducts.count
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
    
    let product = listOfProducts[indexPath.row].title
    
    cell.textLabel?.text = product

    
    return cell
}


}

extension ProductsTableViewController: UISearchBarDelegate {
    func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {
        if let searchBarText = searchBar.text {
            searchRequest.fetchProduct(productName: searchBarText)
        }
    }
}

This is the result enter image description here

Answer 1

If everything goes well and You got the data under "decodedData.results" of "parseJSON" method, And I saw "decodedData.results" and "listOfProducts" both variables are the same type of SearchResults. So you can just add the one line of under "parseJSON" method as follows:-

 func parseJSON(productTitle: Data) {
  let decoder = JSONDecoder()
  do {
  let decodedData = try decoder.decode(ProductResponse.self, from: productTitle)
    
     print(decodedData.results)// it have some array data of type SearchResults
     self.listOfProducts = decodedData.results
     self.tableView.reloadData()

   } catch {
    print(error)
  }
}