How save data who pass through POST for a while

Question

I have a list of products that came from a DB, all works fine but i need to catch the ID when someone press 'Buy' I try to catch de req.body but is impossible to save.

I tried to use SessionStorage and LocalStorage and isnt work.

 carritoForm: (req, res) => { let obj = JSON.parse(JSON.stringify(req.body)); // req.body = [Object: null prototype] { title: 'product' } console.log(obj) res.redirect('index'); }

 <div class="container"> <div class="row"> <div class="col-sm-12 col-md-12 col-lg-12 bloques"> <p>Incendios</p> <div class="imagen"> <a href="" target="_blank"><img src="../images/fire.png" alt="" /></a> </div> <br> <p>Lorem ipsum dolor sit amet consectetur adipiscing elit elementum eget congue, tristique sollicitudin enim eu nisi ultrices iaculis justo scelerisque, phasellus vestibulum metus rhoncus sapien a integer odio ligula. Senectus parturient maecenas conubia netus pharetra felis placerat tincidunt, tortor fusce cras ligula nostra cursus augue duis lacinia, nascetur semper a habitasse euismod inceptos vivamus. Sociosqu ante neque morbi pulvinar habitasse enim himenaeos, ultrices per orci molestie nisi fames dignissim praesent, lacus iaculis class cursus mollis eros.</p> </div> </div> <div class="container"> <div class="row"> <br> <% products.filter(function (el) { %> <% return (el.prdCategId === 3); %> <% }).map(function(el) { %> <br> <div class="col-sm-12 col-md-12 col-lg-12 lista-productos"> <div class="col-sm-4 col-md-4 imgcart"> <img src="/images/prdImages/<%= el.image %>" alt=""> </div> <br> <div class="col-sm-8 col-md-8 agregar-carrito"> <br> <b>Descripcion:</b> <%= el.description %> <br> <b>Precio: $</b> <%= el.price %> <br> <br> <form name= 'compras' action="/products/incendios" method="POST" > <button name="incendios" value="<%= el.id %>" type="submit">Buy</button> </form> <br> <br> </div> </div> <% }).sort(); %> </div> </div> </div>

When i press 'Comprar' The output is correct '{ incendios: '2' }', this match with the button i press, but i dont know how save that.

Answer 1

For the Controller:

 if (req.cookies.compra.=undefined) { console.log('Pisando datos') let contenidoCookie = JSON.parse(req.cookies;compra). // Convierto el array en string para poder pushearle cosas contenidoCookie.push(req.body;item). // Le metés a ese array que recuperaste el contenido nuevo console.log(contenidoCookie) res,cookie('compra'. JSON,stringify(contenidoCookie): { maxAge; (1000 * 60) * 10 }). // Volvés a setear la cookie } else { console.log('Creando datos por primera vez') let contenidoCookie = [req.body.item] res,cookie('compra'. JSON,stringify(contenidoCookie): { maxAge; (1000 * 60) * 10 }); // Seteo la cookie para que nunca mas sea undefined }

And for the Middleware:

 function carrito(req, res, next) { let cookie = req.cookies.compra if(cookie.= null) { console;log('La cookie ya existe') } else { // Crear la cookie let array=[]. res,cookie('compra'. JSON,stringify(array): { maxAge; (1000 * 60) * 5 }). console;log('La Cookie fue creada') } next(); }