Contenidos
Explicación sobre cómo crear el API https://www.jesusninoc.com/07/30/crear-un-api-en-python-con-flask-que-inserte-y-lea-valores-en-firebase-y-desplegarlo-en-vercel/
Código en Swift para iPad que inserta un valor mediante una petición POST
AppDelegate.swift
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// // AppDelegate.swift // ipad // // Created por Jesús N on 2/8/24. // import UIKit @UIApplicationMain class AppDelegate: UIResponder, UIApplicationDelegate { var window: UIWindow? func application( _ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]? ) -> Bool { let window = UIWindow(frame: UIScreen.main.bounds) window.rootViewController = ViewController() window.makeKeyAndVisible() self.window = window return true } } |
ViewController.swift
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// // ViewController.swift // ipad // // Created por Jesús N on 1/8/24. // import UIKit class ViewController: UIViewController { private let textField: UITextField = { let tf = UITextField() tf.placeholder = "Ingresa un valor" tf.borderStyle = .roundedRect tf.backgroundColor = .black tf.textColor = .white tf.translatesAutoresizingMaskIntoConstraints = false return tf }() private let sendButton: UIButton = { let btn = UIButton(type: .system) btn.setTitle("Enviar", for: .normal) btn.backgroundColor = .blue btn.setTitleColor(.white, for: .normal) btn.layer.cornerRadius = 8 btn.translatesAutoresizingMaskIntoConstraints = false return btn }() override func viewDidLoad() { super.viewDidLoad() setupUI() } private func setupUI() { view.backgroundColor = .white view.addSubview(textField) view.addSubview(sendButton) NSLayoutConstraint.activate([ textField.centerXAnchor.constraint(equalTo: view.centerXAnchor), textField.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor, constant: 20), textField.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20), textField.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20), sendButton.centerXAnchor.constraint(equalTo: view.centerXAnchor), sendButton.topAnchor.constraint(equalTo: textField.bottomAnchor, constant: 20), sendButton.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 20), sendButton.trailingAnchor.constraint(equalTo: view.trailingAnchor, constant: -20) ]) sendButton.addTarget(self, action: #selector(sendPostRequest), for: .touchUpInside) } @objc private func sendPostRequest() { guard let url = URL(string: "https://flask-asfasfafsd/add"), let valueToSend = textField.text else { showAlert(message: "URL inválida o campo vacío") return } let data = ["value": valueToSend] guard let jsonData = try? JSONSerialization.data(withJSONObject: data) else { showAlert(message: "Error al crear JSON") return } var request = URLRequest(url: url) request.httpMethod = "POST" request.setValue("application/json", forHTTPHeaderField: "Content-Type") request.httpBody = jsonData URLSession.shared.dataTask(with: request) { data, response, error in var resultMessage: String if let error = error { resultMessage = "Error de red: \(error.localizedDescription)" } else if let data = data { if let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 { do { let responseJSON = try JSONSerialization.jsonObject(with: data) resultMessage = "Respuesta del servidor: \(responseJSON)" } catch { resultMessage = "Error al decodificar JSON: \(error.localizedDescription)" } } else { resultMessage = "Respuesta del servidor: \(String(data: data, encoding: .utf8) ?? "Desconocida")" } } else { resultMessage = "No se recibieron datos" } DispatchQueue.main.async { self.showAlert(message: resultMessage) } }.resume() } private func showAlert(message: String) { let alert = UIAlertController(title: "Respuesta del servidor", message: message, preferredStyle: .alert) alert.addAction(UIAlertAction(title: "OK", style: .default, handler: nil)) present(alert, animated: true, completion: nil) } } |