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¿El valor del servidor MongoDB no se puede actualizar?

Estoy haciendo un sitio web simple... uso reaccionar, MongoDB, JavaScript. Mi problema es cuando hago clic en el botón entregado, la cantidad aumenta, actualizo mi interfaz de usuario y el servidor MongoDB. Cuando el código se ejecuta en el servidor MongoDB, la cantidad es nula.

Aquí está el código

 const handleDelivered = data => { const { quantity, ...rest } = bookItem; const quantity1 = parseInt(bookItem.quantity) - 1; const quantityStr = quantity1.toString(); const newQuantity = { quantity: quantityStr, ...rest } setBookItem(newQuantity); const getquantity = bookItem.quantity; console.log(getquantity); const updateQuantity = { getquantity }; const url = `http://localhost:5000/items/${itemsId}`; fetch(url, { method: 'PUT', headers: { 'content-type': 'application/json' }, body: JSON.stringify(updateQuantity) }) .then(res => res.json()) .then(data => { console.log(data); }) }
about 4 years ago · Juan Pablo Isaza
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