SwiftUI: what is the equivalent stuff with viewDidLoad and viewWillDisappear

I used to put GCDWebServer's start() and stop() in viewDidLoad and viewWillDisappear.

Now in SwiftUI, what is the equivalent place should I put them to? I try to put server init() into scene(_ scene: UIScene, willConnectTo, and server deinit() in sceneDidEnterBackground(_ scene:.

After launching the app, server is started successfully and when I push app to background, the server is stopped. That is worked fine. But when app returns to the foreground again, the server doesn't start again.

The Code:

class BrandViewController: UIViewController {
    let mockServer = GCDServer()
    let tableView = UITableView()
    private let products = ProductAPI.loadProducts()
    let searchController = UISearchController(searchResultsController: nil)
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationItem.searchController = searchController
        
        self.navigationController?.navigationBar.prefersLargeTitles = true
        navigationItem.title = "Search"
        
        view.backgroundColor = .white
        
        tableView.register(ProductCell.self, forCellReuseIdentifier: "productCell")
        tableView.dataSource = self
        tableView.delegate = self
        view.addSubview(tableView)
        
        // Start GCDWebServer
        mockServer.initWebServer()
    }
    
    override func viewDidLayoutSubviews() {
        super.viewDidLayoutSubviews()
        tableView.frame = view.bounds
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        super.viewWillDisappear(animated)
        mockServer.stopWebServer()
    }
}

If you destroy your server on sceneDidEnterBackground then the solution will be to move server creation (and, as I assume start) from scene(_ scene: UIScene, willConnectTo as you do now into sceneWillEnterForeground.