How to bind array of values to nodeJs model? - node.js

Question

I am developing RESTful API.
Model
var productsSchema = new Schema({
productName:{type: String, required: true},
productDescription: {type: String, required: true},
produtThumbnail:{type: String},
productStock: [
{
size: {type: Number, required: false},
price: {type: Number, required: false}
}],
productTags:[{
tag: {type: String, required: false}
}]
});
POST Method
router.post('/api/new-product',upload.any(),function(req, res, next){
console.log(req.body);
if(req.files){
req.files.forEach(function(file){
var filename = (new Date()).valueOf() + '-' + file.originalname;
fs.rename(file.path,'public/images/'+ filename, function(err){
if (err) throw err;
console.log('file Uploaded');
//Save to mongoose
var product = new Products({
productName: req.body.productName,
productDescription: req.body.productDescription,
size: req.body.productStock.size,
productThumbnail: filename
});
product.save(function(err, result){
if(err){}
res.json(result);
});
});
});
}
}) <br/>
Problem:
I am able to bind object data to model, but I don't know how to bind array-data to model.
For example
var product = new Products({
productName: req.body.productName,
productDescription: req.body.productDescription,
size: req.body.productStock.size,// This line doesn't work
productThumbnail: filename
});
size:req.body.productStock doesn't work
So, How can I bind array-data to model, and then save it to mongodb?
Please help..

Answer 1

Just change it to type array
var productsSchema = new Schema({
merchantId: {type: String, required: false},
produtThumbnai:{type: String},
productStock: {type: Array},
productTags:{type: Array}
});
It Works!!

Answer 2

Maybe it's just because of a typo, because your Schema looks OK. Change this:
var product = new Products({
// ...
size: req.body.productStock.size,
// ...
});
To this:
var product = new Products({
// ...
productStock: req.body.productStock,
// ...
});
For this to work you should be passing your productStock as an array of objects from your POST request (!)
Otherwise it's a bit difficult to offer you more help, since we are unaware of what req.body actually is.
EDIT
To check if the above works (and assuming you are passing productStock as a whole array of objects from Postman/Curl/whatever), do the following and paste the result here:
product.productStock.foreach( (product, idx) => console.log(`(${idx}):${product.id}, `) )