Mongoose / Express findByIdAndUpdate does not work - node.js

Question

I tried methods from Stackoverflow and many other sites, but I could not change the data in my database. I am sending the ID of the product in my database to the specified API. However, nothing is returning. The data is also not updated with the data in the new JSON file I entered. I'm testing it using Postman.
This is my API code from my server.js file.
app.put("/api/product/update", (req, res) => {
Product.findByIdAndUpdate(req.params.id, req.body, function (err, doc) {
res.send(doc);
});
Here is my model file:
const mongoose = require('mongoose');
const Schema = mongoose.Schema;
const productSchema = mongoose.Schema({
name: {
required: true,
type: String,
unique: 1,
//maxlength
},
material: {
type: Array,
default: []
},
price: {
type: Number,
required: true,
maxlength: 255,
},
productType: {
type: Schema.Types.ObjectId,
ref: 'Prodtype',
default: "Other",
},
inStock: {
type: Boolean,
default: true,
}
},{timestamps:true});
const Product = mongoose.model('Product',productSchema);
module.exports = { Product }
Postman: PUT localhost:3000/api/product/update?id=6029812bee921b0c7fb65abf

Answer 1

Based on the information you've provided I'm assuming you're using express as your nodejs server framework.
If you want to access your request body, you need to add a body-parser as a middleware.
$ npm i body-parser
const bodyParser = require('body-parser')
app.use(bodyParser)
app.put("/api/product/update", (req, res) => {
Product.findByIdAndUpdate(req.params.id, req.body, function (err, doc) {
res.send(doc);
});
In addition I would recommend you to not directly write everything you're receiving on the endpoint to your database but to implement some sort of validation.

Answer 2

I solved my problem. When I changed my code as follows, I used req.query instead of req.body.
app.put("/api/product/update",(req, res) => {
Product.findByIdAndUpdate(
{ _id: req.query.id },
{ name: req.body.name, price: req.body.price, inStock: req.body.inStock },
function (err, doc) {
console.log(doc);
if (err) {
console.log(err.message);
} else {
res.send(doc);
}
}
);
});