I am trying to update one property Like I have a few properties, product name, price, quantity, supplier, and description. I am sending all the updated quantities with all properties to MongoDb, in that case, I am able to update the database and UI without any refresh.
const handleDelivered = (id) => {
const newQuantity = (quantity - 1);
if (newQuantity >= 0) {
const newService = {...serviceDetail, quantity: newQuantity}
setServiceDetail(newService);
const url = `https://intense-tor-77999.herokuapp.com/item/${id}`;
fetch(url, {
method: 'PUT',
headers: {
'Content-Type': 'application/json',
},
body: JSON.stringify(newService),
})
.then(response => response.json())
.then(data => {
console.log('Success:', data);
})
.catch((error) => {
console.error('Error:', error);
})
}
else{
toast(`${productName} is sold out`);
}
}
But I just want to update only one property for example only quantity like
const updateQuantity = { quantity : newQuantity};
So, how can I update this one property without sending all properties from my frontend to backend?
Firstly you can declare const [isReload, setIsReload]= useState(true);
when you get response from database after uploading new quantity, add this
.then(response => response.json())
.then(data => {
console.log('Success:', data);
setIsReload(!isReload);
});
than you put isReload as dependency of useEffect, where you load data by id
useEffect(()=>{
fetch(url)
.then(res=>res.json())
.then(data => setData(data))
},[isReload ]);
try it