How to make a request to post an array to the server? - node.js

Question

I need to execute a request to send an array. But when I do this I get null as the result.
Result Request Payload:
[
{nom_name: "Test", cost: 500, quantity: 1, parentOrder_id: 19},
{nom_name: "35634", cost: 100, quantity: 1, parentOrder_id: 19}
]
Result Preview:
{
address: null
apartment: null
code: null
cost: null
date_delivery: null
floor: null
hierarchyLevel: 1
is_new: true
name: null
nom_name: null
order_id: 40
parentOrder_id: null
payment: null
quantity: null
telephone: null
}
How do I fix to prevent null values ​​from being sent to the server for the values ​​I am sending? And so that the post request sends exactly an array, and not a single object.
service:
create(order: Order[]): Observable<Order> {
return this.http.post<Order>(`${env.url}/api/orders/create`, order);
}
ts:
onSave() {
const order: Order[] =
this.order.list.map(e => {
const { order_id, ...rest } = e
return ({ ...rest, parentOrder_id: 19 })
})
this._order.create(order)
.subscribe(
() => {
console.log('Data Saved.')
},
error => {
console.log(error)
}
);
}
On the server I am using Nodejs and ORM Sequelize.
node.js controller:
module.exports.create = function (req, res) {
const order = db.orders.bulkCreate([
{
nom_name: req.body.nom_name,
quantity: req.body.quantity,
cost: req.body.cost,
parentOrder_id: req.body.parentOrder_id
}
])
res.status(201).json(order);
};

Answer 1

I haven't personally worked a lot with sequelize, but I'm pretty sure that you need to pass the the request-body object directly since req.body contains the array of data and thus req.body.nom_name for example will be undefined. Also bulkCreate is defined as an async-function that you should await before sending the response:
module.exports.create = async (req, res) => {
const orders = await db.orders.bulkCreate(req.body);
res.status(201).json(orders);
};