Mongoose Schema type Object Id Mapping - node.js

Question

Backend Code:
This is orderModel.js
import mongoose from "mongoose";
const orderSchema = mongoose.Schema(
{
user: {
type: mongoose.Schema.Types.ObjectId,
required: true,
ref: "User",
},
orderItems: [
{
name: { type: String, required: true },
qty: { type: String, required: true },
image: { type: String, required: true },
price: { type: String, required: true },
productId: {
type: mongoose.Schema.Types.ObjectId,
required: true,
ref: "Product",
},
},
],
deliveryAddress: {
address: { type: String, required: true },
area: { type: String, required: true },
// gender: { type: String, required: true },
postalCode: { type: String, required: true },
district: { type: String, required: true },
division: { type: String, required: true },
country: { type: String, required: true, default: "Bangladesh" },
},
paymentMethod: {
type: String,
required: true,
},
paymentStatus: {
id: { type: String },
status: { type: String },
update_time: { type: String },
email: { type: String },
},
taxPrice: {
type: Number,
required: true,
default: 0.0,
},
deliveryCost: {
type: Number,
required: true,
default: 0.0,
},
totalPrice: {
type: Number,
required: true,
default: 0.0,
},
discount: {
type: Number,
required: true,
default: 0.0,
},
isPaid: {
type: Boolean,
required: true,
default: false,
},
paidAt: {
type: Date,
},
isDelivered: {
type: Boolean,
required: true,
default: false,
},
deliveredAt: {
type: Date,
},
},
{
timeStamps: true,
}
);
const Order = mongoose.model("Order", orderSchema);
export default Order;
This is orderController.js -
import asyncHandler from "express-async-handler";
import Order from "../models/orderModel.js";
// review: desc => Create New Order
// review: route => POST api/orders
// review: access => Private
const createOrder = asyncHandler(async (req, res) => {
const {
orderItems,
deliveryAddress,
paymentMethod,
taxPrice,
deliveryCost,
discount,
totalPrice,
} = req.body;
if (orderItems && orderItems.length === 0) {
res.status(400);
throw new Error("No order items");
} else {
try {
const order = new Order({
orderItems,
user: req.user._id,
deliveryAddress,
paymentMethod,
taxPrice,
deliveryCost,
discount,
totalPrice,
});
console.log("ORDER CREATED", order);
const createdOrder = await order.save();
console.log("ORDER saved", createdOrder);
res.status(201).json(createdOrder);
} catch (error) {
res.status(400);
throw new Error("Invalid order data", error);
}
}
});
// review: desc => GET order by id
// review: route => GET api/orders/:id
// review: access => private
const getOrderById = asyncHandler(async (req, res, next) => {
const order = await Order.findById(req.params.id).populate(
"user",
"name email"
);
if (order) {
res.json(order);
} else {
res.status(404);
throw new Error("Order not found");
}
});
export { createOrder, getOrderById };
Frontend Code:
const handleSubmit = (e) => {
e.preventDefault();
dispatch(
createOrder({
orderItems: cartItems,
deliveryAddress: addressObject,
paymentMethod,
taxPrice: vat,
deliveryCost,
discount,
totalPrice,
})
);
};
Here When I am sending request to backend, It's giving me validation error. As - orderItems.0.productId: Path productId is required. Why I am getting this error ? mongoose should not map data and get productId from sent cartItems, where is a field is _id ? Your time and help is most appreciated, Thanks.