Adding logout functionability

public/js/app.js

+// Obtener referencia a los elementos del DOM
+const taskList = document.querySelector('.task-list ul');
+const newTaskForm = document.querySelector('form');
+
+// Logout
+document.getElementById('logout-btn').addEventListener('click', async () => {
+  try {
+    const res = await fetch('/api/users/logout', { method: 'POST' });
+    if (res.ok) {
+      window.location.href = 'login.html'; 
+    } else {
+      console.error('Logout failed');
+    }
+  } catch (err) {
+    console.error('Error during logout:', err);
+  }
+});
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public/js/index.js

+document.addEventListener('DOMContentLoaded', async () => {
+    const logoutBtn = document.getElementById('logout-btn'); 
+  
+    // Evento para el botón de logout
+    logoutBtn.addEventListener('click', async () => {
+        try {
+          const res = await fetch('/api/users/logout', { method: 'POST' });
+          if (res.ok) {
+            window.location.href = 'login.html';  
+          } else {
+            console.error('Logout failed');
+          }
+        } catch (err) {
+          console.error('Error during logout:', err);
+        }
+    });
+});
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routes/todos.js

@@ -2,32 +2,25 @@ const express = require('express');
 const router = express.Router();
 const Todo = require('../models/todo');
 
-// Get all TODOs for the logged-in user
-router.get('/', async (req, res) => {
-  const todos = await Todo.find({ userId: req.user.id });
-  res.json(todos);
-});
-
-// Add a new TODO
-router.post('/', async (req, res) => {
-  const { description } = req.body;
-  const todo = new Todo({ description, userId: req.user.id });
-  await todo.save();
-  res.json(todo);
-});
+// Middleware para verificar si el usuario está autenticado
+function isAuthenticated(req, res, next) {
+  if (req.session.user) {
+    return next();
+  } else {
+    return res.status(401).json({ error: 'Unauthorized' });
+  }
+}
 
-// Mark TODO as done
-router.put('/:id', async (req, res) => {
-  const todo = await Todo.findById(req.params.id);
-  todo.isDone = true;
-  await todo.save();
-  res.json(todo);
-});
 
-// Delete a TODO
-router.delete('/:id', async (req, res) => {
-  await Todo.findByIdAndDelete(req.params.id);
-  res.json({ success: true });
+router.post('/logout', (req, res) => {
+  req.session.destroy((err) => {
+    if (err) {
+      console.error('Error al destruir la sesión:', err);
+      return res.status(500).json({ error: 'Error al cerrar sesión' });
+    }
+    // Redirigir al cliente o enviar una respuesta exitosa
+    res.status(200).json({ message: 'Logout successful' });
+  });
 });
 
-module.exports = router;
+module.exports = router;
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